{"title":"Robotics","description":"\u003csvg fill=\"currentColor\" viewbox=\"0 0 24 24\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M17 2H13V1H11V2H7C5.34315 2 4 3.34315 4 5V8C4 10.7614 6.23858 13 9 13H15C17.7614 13 20 10.7614 20 8V5C20 3.34315 18.6569 2 17 2ZM11 7.5C11 8.32843 10.3284 9 9.5 9C8.67157 9 8 8.32843 8 7.5C8 6.67157 8.67157 6 9.5 6C10.3284 6 11 6.67157 11 7.5ZM16 7.5C16 8.32843 15.3284 9 14.5 9C13.6716 9 13 8.32843 13 7.5C13 6.67157 13.6716 6 14.5 6C15.3284 6 16 6.67157 16 7.5ZM4 22C4 17.5817 7.58172 14 12 14C16.4183 14 20 17.5817 20 22H4Z\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003ch3\u003eWe Welcome Our Future Overlords!\u003c\/h3\u003e\n\u003cp\u003eWhether you're a newbie or a seasoned bot-builder, we've got the kits and bits to bring your mechanical dreams to life.\u003c\/p\u003e\n\u003cp\u003eFrom wheeled wonders to grabby arms, our kits are packed with everything you need to create robots that move, groove, and maybe take over the chores (fingers crossed).\u003c\/p\u003e\n\u003cp\u003eWe’ve got motors, sensors, and all the extras to pimp your bots. Build, tinker, and watch your creations come to life—just don’t let them take over!\u003c\/p\u003e","products":[{"product_id":"adafruit-16-channel-12-bit-pwm-servo-driver","title":"Adafruit 16-Channel 12-bit PWM\/Servo Driver","description":"\u003cp\u003eYou want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that your microcontroller has a limited number of PWM outputs! What now? You could give up OR you could just get this handy PWM and Servo driver breakout.\u003c\/p\u003e\n\u003cp\u003eWhen Adafruit saw this chip, they quickly realized what an excellent add-on this would be. \u003cstrong\u003eUsing only two pins, control 16 free-running PWM outputs!\u003c\/strong\u003e You can even chain up 62 breakouts to control up to 992 PWM outputs (which we would really like to see since it would be glorious)\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt's an i2c-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!\u003c\/li\u003e\n\u003cli\u003eIt is 5V compliant, which means you can control it from a 3.3V microcontroller and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages)\u003c\/li\u003e\n\u003cli\u003e6 address select pins so you can wire up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs\u003c\/li\u003e\n\u003cli\u003eAdjustable frequency PWM up to about 1.6 KHz\u003c\/li\u003e\n\u003cli\u003e12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate\u003c\/li\u003e\n\u003cli\u003eConfigurable push-pull or open-drain output\u003c\/li\u003e\n\u003cli\u003eOutput enable pin to quickly disable all the outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdafruit wrapped up this lovely chip into a breakout board with a couple nice extras\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTerminal block for power input (or you can use the 0.1\" breakouts on the side)\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection on the terminal block input\u003c\/li\u003e\n\u003cli\u003eGreen power-good LED\u003c\/li\u003e\n\u003cli\u003e3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are \u003cem\u003eslightly\u003c\/em\u003e wider than 0.1\" so you can only stack 4 next to each other on 0.1\" header\u003c\/li\u003e\n\u003cli\u003e\"Chain-able\" design\u003c\/li\u003e\n\u003cli\u003eA spot to place a big capacitor on the V+ line (in case you need it)\u003c\/li\u003e\n\u003cli\u003e220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial\u003c\/li\u003e\n\u003cli\u003eSolder jumpers for the 6 address select pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product comes with a fully tested and assembled breakout as well as 4 pieces of 3x4 male straight header (for servo\/LED plugs), a 2-pin terminal block (for power) and a piece of 6-pin 0.1\" header (to plug into a breadboard). A little light soldering will be required to assemble and customize the board by attaching the desired headers but it is a 15 minute task that even a beginner can do.\u003cbr\u003e\u003cbr\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/16-channel-pwm-servo-driver\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the tutorial with Arduino\u003c\/a\u003e and \u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit-PWM-Servo-Driver-Library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eyou can get the documented Arduino library which has both PWM and Servo examples from github!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (no headers or terminal block) 2.5\" x 1\" x 0.1\" (62.5mm x 25.4mm x 3mm)\u003c\/li\u003e\n\u003cli\u003eWeight (no headers or terminal block): 5.5grams\u003c\/li\u003e\n\u003cli\u003eWeight (with 3x4 headers \u0026amp; terminal block): 9grams\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit address between 0x60-0x80, selectable with jumpers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/16-channel-pwm-servo-driver\/downloads\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheets, EagleCAD PCB files, Fritzing object and more in the tutorial!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eRevision History:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs of Feb 16, 2015 Adafruit now use a much beefier polarity-protection transistor. Functionality is otherwise the same\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":280757238,"sku":"ADA815","price":12.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/815.jpg?v=1539263438"},{"product_id":"adafruit-motor-stepper-servo-shield-for-arduino-v2-kit","title":"Adafruit Motor\/Stepper\/Servo Shield for Arduino v2 Kit - v2.3","description":"\u003cp\u003eAdafruit have upgraded the shield kit to make the bestest, easiest way to drive DC and Stepper motors. This shield will make quick work of your next robotics project!\u003c\/p\u003e\n\u003cp\u003eThey've kept the ability to drive up to 4 DC motors or 2 stepper motors, but added many improvements:\u003cbr\u003e\u003cbr\u003eInstead of a L293D darlington driver, we now have the TB6612 MOSFET drivers with 1.2A per channel current capability (you can draw up to 3A peak for approx 20ms at a time). It also has much lower voltage drops across the motor so you get more torque out of your batteries, and there are built-in flyback diodes as well.\u003c\/p\u003e\n\u003cp\u003eInstead of using a latch and the Arduino's PWM pins, there is a \u003cb\u003efully-dedicated PWM driver chip \u003c\/b\u003eonboard. This chip handles all the motor and speed controls over I2C. Only two data pins (SDA \u0026amp; SCL in addition to the power pins GND \u0026amp; 5V) are required to drive the multiple motors, and since it's I2C you can also connect any other I2C devices or shields to the same pins. This also makes it drop-in compatible with any Arduino, such as the Uno, Due, Leonardo and Mega R3.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCompletely stackable design\u003c\/b\u003e: 5 address-select pins means up to 32 stackable shields: that's 64 steppers or 128 DC motors! What on earth could you do with that many steppers? I have no idea but if you come up with something send us a photo because that would be a pretty glorious project.\u003c\/p\u003e\n\u003cp\u003eLots of other little improvements such as a polarity protection FET on the power pins and a bit of prototyping area. And the shield is assembled and tested at Adafruit so all you have to do is solder on straight or stacking headers and the terminal blocks.\u003c\/p\u003e\n\u003cp\u003eLets check out these specs again:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 connections for 5V 'hobby' servos\u003c\/strong\u003e connected to the Arduino's high-resolution dedicated timer - no jitter!\u003c\/li\u003e\n\u003cli\u003e4 H-Bridges: TB6612 chipset provides \u003cstrong\u003e1.2A per bridge\u003c\/strong\u003e (3A for brief 20ms peaks) with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 13.5VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 4 bi-directional DC\u003c\/strong\u003e motors with individual 8-bit speed selection (so, about 0.5% resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 2 stepper motors\u003c\/strong\u003e (unipolar or bipolar) with single coil, double coil, interleaved or micro-stepping.\u003c\/li\u003e\n\u003cli\u003eMotors automatically disabled on power-up\u003c\/li\u003e\n\u003cli\u003eBig terminal block connectors to easily hook up wires (18-26AWG) and power\u003c\/li\u003e\n\u003cli\u003eArduino reset button brought up top\u003c\/li\u003e\n\u003cli\u003ePolarity protected 2-pin terminal block and jumper to connect external power, for separate logic\/motor supplies\u003c\/li\u003e\n\u003cli\u003eTested compatible with Arduino UNO, Leonardo, ADK\/Mega R3, Due, Diecimila \u0026amp; Duemilanove. Works with Mega\/ADK R2 and earlier with 2 wire jumpers.\u003c\/li\u003e\n\u003cli\u003eDownload the easy-to-use Arduino software library, check out the examples and you're ready to go!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes with an assembled \u0026amp; tested shield, terminal block, plain header, jumper. Some soldering is required to assemble the headers on. Stacking headers not included, but we sell them in the shop so if you want to stack shields, please pick them up at the same time. \u003cb\u003eArduino and motors are not included\u003c\/b\u003e but we have lots of motors in the shop and all our hobby servos, DC motors, and stepper motors work great.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-motor-shield-v2-for-arduino\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThere's a great tutorial in the Adafruit Learning System with a lot of documentation and example code, so please check it out\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions, assembled: 70mm x 55mm x 10mm 2.7\"x2.1\"x0.4\"\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit addresses between 0x60-0x80, selectable with jumpers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/TB6612FNG_datasheet_en_20121101.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet for the motor driver chip\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRevision history:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAs of 3\/21\/2014 we are shipping motor shields with the terminal blocks, and power jumper pre-soldered on. You'll still need to do a little soldering to put on the shield-headers (or stacking headers) but it should be even easier and faster to get started!\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":382364528,"sku":"ADA1438","price":16.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1438-04.jpg?v=1539264270"},{"product_id":"adafruit-16-channel-12-bit-pwm-servo-shield-i2c-interface","title":"Adafruit 16-Channel 12-bit PWM\/Servo Shield - I2C interface","description":"\u003cp\u003eYou want to make a cool Arduino robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts.\u003c\/p\u003e\n\u003cp\u003eOr maybe you want to drive a lot of LEDs with precise PWM output. Then you realize that the Arduino has only a few PWM outputs, and maybe those outputs are conflicting with another shield! What now? You could give up OR you could just get this handy PWM and Servo driver shield. It's just like the popular PWM\/Servo Breakout but now Arduino-ready and works with any Arduino that uses shields: Uno, Leo, Mega, ADK, its all good.\u003c\/p\u003e\n\u003cp\u003eWhen adafruit saw this chip, they quickly realized what an excellent add-on this would be. \u003cstrong\u003eUsing only two I2C pins, control 16 free-running PWM outputs!\u003c\/strong\u003e You can even stack up 62 shields to control up to 992 PWM outputs (which we would really like to see since it would be glorious and like 4 feet tall) Because I2C is a shared bus you can also connect other I2C devices and sensors to the SCL\/SDA pins as long as their addresses don't conflict (this shield has address 0x40)\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThere's an I2C-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!\u003c\/li\u003e\n\u003cli\u003eIt is 5V compliant, which means you can control it from a 3.3V Arduino and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages)\u003c\/li\u003e\n\u003cli\u003e6 address select pins so you can stack up to 62 of these on a single i2c bus. 12 out of 16 output pins can be accessed when stacked.\u003c\/li\u003e\n\u003cli\u003eAdjustable frequency PWM up to about 1.6 KHz\u003c\/li\u003e\n\u003cli\u003e12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate\u003c\/li\u003e\n\u003cli\u003eConfigurable push-pull or open-drain output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdafruit wrapped up this lovely chip into a shield with a couple nice extras\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTerminal block for power input (or you can use the 0.1\" breakouts on the side)\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection on the terminal block input\u003c\/li\u003e\n\u003cli\u003eGreen and red power-good LEDs\u003c\/li\u003e\n\u003cli\u003e3 pin connectors in groups of 4 so you can plug in 16 servos at once (Servo plugs are \u003cem\u003eslightly\u003c\/em\u003e wider than 0.1\" so you can only stack 4 next to each other on 0.1\" header\u003c\/li\u003e\n\u003cli\u003eStackable design. You'll need to pick up stacking headers and right angle 3x4 headers in order to stack on top of this shield without the servo connections getting in the way.\u003c\/li\u003e\n\u003cli\u003eA spot to place a big capacitor on the V+ line (in case you need it)\u003c\/li\u003e\n\u003cli\u003e220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial\u003c\/li\u003e\n\u003cli\u003eSolder jumpers for the 6 address select pins\u003c\/li\u003e\n\u003cli\u003eA lot of extra space remaining? Let's turn it into a prototyping area. You get a 5x20 proto area for any extra wiring you'd like to add\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product comes with a fully tested and assembled shield as well as 4 pieces of 3x4 male straight header (for servo\/LED plugs), a 2-pin terminal block (for power) and a stick of 0.1\" header so you can plug into an Arduino. A little light soldering will be required to assemble and customize the board by attaching the desired headers but it is a 15 minute task that even a beginner can do.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eServos and Arduino not included\u003c\/strong\u003e - but we do sell tons of different servos in the shop so pick up a few while you're here!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The terminal blocks included with your product may be blue or black.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-slash-servo-shield\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out this tutorial with Arduino and you can get the documented Arduino library which has both PWM and Servo examples!\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (no headers or terminal block) 2.1\" x 2.7\" x 0.1\" (54mm x 70mm x 3mm)\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit addresses between 0x60-0x80, selectable with jumpers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRevision History:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDec 3, 2014 - we updated the polarity protection transistor to an AOD417 for better current handling, it is otherwise identical in code and size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-slash-servo-shield\/downloads-and-links\"\u003eDatasheets, EagleCAD PCB files, Fritzing object and more available in the Servo Shield tutorial\u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":382389348,"sku":"ADA1411","price":14.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1411-00.jpg?v=1576582925"},{"product_id":"pololu-a4988-stepper-motor-driver-carrier-black-edition","title":"Pololu A4988 Stepper Motor Driver Carrier, Black Edition","description":"\u003cp\u003eThis product is a carrier board or breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection; we therefore recommend careful reading of the \u003ca href=\"http:\/\/www.pololu.com\/file\/download\/a4988_DMOS_microstepping_driver_with_translator.pdf?file_id=0J450\"\u003eA4988 datasheet\u003c\/a\u003e (380k pdf) before using this product.\u003c\/p\u003e\n\u003cp\u003eThis stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil (see the\u003cem\u003ePower Dissipation Considerations\u003c\/em\u003e section below for more information). Here are some of the driver’s key features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSimple step and direction control interface\u003c\/li\u003e\n\u003cli\u003eFive different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step\u003c\/li\u003e\n\u003cli\u003eAdjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates\u003c\/li\u003e\n\u003cli\u003eIntelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)\u003c\/li\u003e\n\u003cli\u003eOver-temperature thermal shutdown, under-voltage lockout, and crossover-current protection\u003c\/li\u003e\n\u003cli\u003eShort-to-ground and shorted-load protection\u003c\/li\u003e\n\u003cli\u003e4-layer, 2 oz copper PCB for improved heat dissipation\u003c\/li\u003e\n\u003cli\u003eExposed solderable ground pad below the driver IC on the bottom of the PCB\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product ships with all surface-mount components—including the A4988 driver IC—installed as shown in the product picture.\u003c\/p\u003e\n\u003ch2\u003ePower connections\u003c\/h2\u003e\n\u003cp\u003eThe driver requires a logic supply voltage (3 – 5.5 V) to be connected across the VDD and GND pins and a motor supply voltage (8 – 35 V) to be connected across VMOT and GND. These supplies should have appropriate decoupling capacitors close to the board, and they should be capable of delivering the expected currents (peaks up to 4 A for the motor supply).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e This carrier board uses low-ESR ceramic capacitors, which makes it susceptible to destructive \u003ca href=\"http:\/\/www.pololu.com\/docs\/0J16\"\u003eLC voltage spikes\u003c\/a\u003e, especially when using power leads longer than a few inches. Under the right conditions, these spikes can exceed the 35 V maximum voltage rating for the A4988 and permanently damage the board, even when the motor supply voltage is as low as 12 V. One way to protect the driver from such spikes is to put a large (at least 47 µF) electrolytic capacitor across motor power (VMOT) and ground somewhere close to the board.\u003c\/p\u003e\n\u003ch2\u003eMotor connections\u003c\/h2\u003e\n\u003cp\u003eFour, six, and eight-wire stepper motors can be driven by the A4988 if they are properly connected; a \u003ca href=\"http:\/\/www.pololu.com\/catalog\/product\/2128\/faqs\"\u003eFAQ answer\u003c\/a\u003e explains the proper wirings in detail.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarning:\u003c\/strong\u003e Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver. (More generally, rewiring anything while it is powered is asking for trouble.)\u003c\/p\u003e\n\u003ch2\u003eStep (and microstep) size\u003c\/h2\u003e\n\u003cp\u003eStepper motors typically have a step size specification (e.g. 1.8° or 200 steps per revolution), which applies to full steps. A microstepping driver such as the A4988 allows higher resolutions by allowing intermediate step locations, which are achieved by energizing the coils with intermediate current levels. For instance, driving a motor in quarter-step mode will give the 200-step-per-revolution motor 800 microsteps per revolution by using four different current levels.\u003c\/p\u003e\n\u003cp\u003eThe resolution (step size) selector inputs (MS1, MS2, and MS3) enable selection from the five step resolutions according to the table below. MS1 and MS3 have internal 100kΩ pull-down resistors and MS2 has an internal 50kΩ pull-down resistor, so leaving these three microstep selection pins disconnected results in full-step mode. For the microstep modes to function correctly, the current limit must be set low enough (see below) so that current limiting gets engaged. Otherwise, the intermediate current levels will not be correctly maintained, and the motor will skip microsteps.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMS1\u003c\/th\u003e\n\u003cth\u003eMS2\u003c\/th\u003e\n\u003cth\u003eMS3\u003c\/th\u003e\n\u003cth\u003eMicrostep Resolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eFull step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eHalf step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eQuarter step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003ctd\u003eEighth step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003eSixteenth step\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eControl inputs\u003c\/h2\u003e\n\u003cp\u003eEach pulse to the STEP input corresponds to one microstep of the stepper motor in the direction selected by the DIR pin. Note that the STEP and DIR pins are not pulled to any particular voltage internally, so you should not leave either of these pins floating in your application. If you just want rotation in a single direction, you can tie DIR directly to VCC or GND. The chip has three different inputs for controlling its many power states: RST, SLP, and EN. For details about these power states, see the datasheet. Please note that the RST pin is floating; if you are not using the pin, you can connect it to the adjacent SLP pin on the PCB to bring it high and enable the board.\u003c\/p\u003e\n\u003ch2\u003eCurrent limiting\u003c\/h2\u003e\n\u003cp\u003eTo achieve high step rates, the motor supply is typically much higher than would be permissible without active current limiting. For instance, a typical stepper motor might have a maximum current rating of 1 A with a 5Ω coil resistance, which would indicate a maximum motor supply of 5 V. Using such a motor with 12 V would allow higher step rates, but the current must actively be limited to under 1 A to prevent damage to the motor.\u003c\/p\u003e\n\u003cp\u003eThe A4988 supports such active current limiting, and the trimmer potentiometer on the board can be used to set the current limit. One way to set the current limit is to put the driver into full-step mode and to measure the current running through a single motor coil without clocking the STEP input. The measured current will be 0.7 times the current limit (since both coils are always on and limited to 70% of the current limit setting in full-step mode). Please note that changing the logic voltage, Vdd, to a different value will change the current limit setting since the voltage on the “ref” pin is a function of Vdd.\u003c\/p\u003e\n\u003cp\u003eAnother way to set the current limit is to measure the voltage on the “ref” pin and to calculate the resulting current limit (the current sense resistors are 0.05Ω). The ref pin voltage is accessible on a via that is circled on the bottom silkscreen of the circuit board. The current limit relates to the reference voltage as follows:\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eCurrent Limit = VREF × 2.5\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSo, for example, if the reference voltage is 0.3 V, the current limit is 0.75 A. As mentioned above, in full step mode, the current through the coils is limited to 70% of the current limit, so to get a full-step coil current of 1.2 A, the current limit should be 1.2 A\/0.7=1.7 A, which corresponds to a VREF of 1.7 A\/2.5=0.68 V. See the A4988 datasheet for more information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The coil current can be very different from the power supply current, so you should \u003cins\u003enot\u003c\/ins\u003e use the current measured at the power supply to set the current limit. The appropriate place to put your current meter is in series with one of your stepper motor coils.\u003c\/p\u003e\n\u003ch2\u003ePower dissipation considerations\u003c\/h2\u003e\n\u003cp\u003eThe A4988 driver IC has a maximum current rating of 2 A per coil, but the actual current you can deliver depends on how well you can keep the IC cool. The carrier’s printed circuit board is designed to draw heat out of the IC, but to supply more than approximately 1.2 A per coil, a heat sink or other cooling method is required (in our tests, we were able to deliver approximately 1.4 A per coil with air flow from a PC fan and no heat sink).\u003c\/p\u003e\n\u003cp\u003eThis product can get \u003cstrong\u003ehot\u003c\/strong\u003e enough to burn you long before the chip overheats. Take care when handling this product and other components connected to it.\u003c\/p\u003e\n\u003cp\u003e\u003cins\u003ePlease note that measuring the current draw at the power supply will generally not provide an accurate measure of the coil current.\u003c\/ins\u003e Since the input voltage to the driver can be significantly higher than the coil voltage, the measured current on the power supply can be quite a bit lower than the coil current (the driver and coil basically act like a switching step-down power supply). Also, if the supply voltage is very high compared to what the motor needs to achieve the set current, the duty cycle will be very low, which also leads to significant differences between average and RMS currents.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":385708716,"sku":"POL-2128","price":13.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2548.jpg?v=1382714951"},{"product_id":"pololu-wheel-42x19mm-pair","title":"Pololu Wheel 42x19mm Pair","description":"\u003cp\u003eThis custom-designed white plastic wheel is designed to fit the output shafts on our \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/micro-metal-gearmotor-mp\"\u003emicro metal gearmotors\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul style=\"line-height: 1.2;\"\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan\u003eRubber tire measuring 1.65\" (42 mm) in diameter\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2;\"\u003eTeeth on the hub optionally allow a reflectance sensor to be used for encoder feedback.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 1.2;\"\u003eThese wheels are sold in \u003c\/span\u003e\u003cstrong style=\"line-height: 1.2;\"\u003epairs\u003c\/strong\u003e\u003cspan style=\"line-height: 1.2;\"\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan style=\"line-height: 16px;\"\u003e\u003cspan\u003eGearmotors should be mounted onto the side of the hub with the protruding teeth, as shown in the images. The output shaft will slide into the socket easily at first but will achieve a snug fit when pressed through to the other edge of the hub\u003c\/span\u003e\u003c\/span\u003e","brand":"Pololu","offers":[{"title":"42x19mm","offer_id":390394722,"sku":"POL-1090","price":7.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1090_SINGLE_9d123dbf-5c31-4247-a6c2-92f2eed50a5c.jpg?v=1383300504"},{"product_id":"pololu-wheel-90x10mm-pair","title":"Pololu Wheel 90x10mm Pair","description":"\u003cp\u003eThese plastic wheels have silicone tires, measure 90 mm (3.54″) in diameter, and they press-fit onto the 3mm D shafts on our \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\"\u003emicro metal gearmotors.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAdditionally, this wheel is compatible with several of our \u003ca href=\"\/en-eu\/products\/pololu-universal-aluminum-mounting-hub-for-5mm-shaft-m3-holes-2-pack\" target=\"_blank\"\u003euniversal mounting hubs\u003c\/a\u003e, which can serve as adapters for motors with different shafts. This product is a pair of wheels.\u003c\/p\u003e\n\u003cp\u003eThese wheels are great for robotics, custom RC vehicles, or any other project you need to get rolling. They measure 90 mm (3.54″) in diameter and are designed to press-fit securely onto D output shafts with a diameter of 3 mm.\u003c\/p\u003e\n\u003cp\u003eSix mounting holes for #4 or M3 screws make it possible to use the wheel with any of our universal mounting hubs for those screw sizes, enabling these wheels to be used with our larger metal gearmotors and stepper motors.\u003c\/p\u003e\n\u003cp\u003eThe slots in the six spokes fit #2 or M2 screws and allow additional accessories to be mounted to the wheel such as decorations or parts of an encoder system. The included silicone tires feature horizontal treads for improved traction.\u003c\/p\u003e\n\u003ch2\u003eUseful resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-wheel-dimensions.pdf?v=1621955567\" target=\"_blank\"\u003eDimensional diagram for Pololu wheels\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-wheel-90x10mm.zip?v=1621955657\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e3D model\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pololu","offers":[{"title":"Black","offer_id":390408448,"sku":"POL-1435","price":6.25,"currency_code":"GBP","in_stock":false},{"title":"Red","offer_id":39351841718355,"sku":"POL-1436","price":6.25,"currency_code":"GBP","in_stock":false},{"title":"Blue","offer_id":39351842832467,"sku":"POL-1438","price":6.25,"currency_code":"GBP","in_stock":false},{"title":"White","offer_id":39351843815507,"sku":"POL-1439","price":6.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1435_motor.jpg?v=1619693907"},{"product_id":"pololu-wheel-32x7mm-pair","title":"Pololu Wheel 32x7mm Pair","description":"\u003cspan style=\"line-height: 1.2;\"\u003eThis custom designed plastic wheel is designed to fit the output shafts on our \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/micro-metal-gearmotor-mp\"\u003emicro metal gearmotors.\u003c\/a\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003cul style=\"line-height: 1.2;\"\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan\u003e\u003cspan\u003eSilicone tires measuring \u003cstrong\u003e32\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e mm (1.26\")\u003c\/strong\u003e\u003cspan\u003e in diameter\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan style=\"line-height: 1.2;\"\u003eThese wheels are sold in \u003c\/span\u003e\u003cstrong style=\"line-height: 1.2;\"\u003epairs\u003c\/strong\u003e\u003cspan style=\"line-height: 1.2;\"\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2;\"\u003eAvailable in a two colours\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pololu","offers":[{"title":"Black","offer_id":390419700,"sku":"POL-1087","price":3.25,"currency_code":"GBP","in_stock":false},{"title":"White","offer_id":390419710,"sku":"POL-1088","price":3.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1087_colour.jpg?v=1383304508"},{"product_id":"pololu-ball-caster-with-3-4-metal-ball","title":"Pololu Ball Caster","description":"\u003cp\u003eThis ball caster kit includes a black ABS housing, a metal ball (chose the correct size above), two spacers (1\/16\" and 1\/8\" thick), and two #2 screw sets.\u003c\/p\u003e\n\u003cp\u003eThe total height of the ball caster, 0.83\", 0.53\", or 0.4\", can be increased to about 1\", 0.7\", or 0.6\" respectively using the included spacers. The two included #2 screws can be used to mount the ball caster to your chassis\u003c\/p\u003e\n\u003cp\u003eNote that our ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will probably keep it from rolling well.\u003c\/p\u003e\n\u003ch2\u003eDimensional Drawing\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-ball-caster-with-0-750in-metal-ball.pdf?v=1621950785\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e3\/4 inch\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-ball-caster-with-0-500in-ball.pdf?v=1621950785\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e1\/2 inch\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-ball-caster-with-0-375in-ball.pdf?v=1621950785\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e3\/8 inch\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pololu","offers":[{"title":"3\/4 inch","offer_id":390424422,"sku":"POL-955","price":3.0,"currency_code":"GBP","in_stock":false},{"title":"1\/2 inch","offer_id":415237741,"sku":"POL-953","price":2.0,"currency_code":"GBP","in_stock":false},{"title":"3\/8 inch","offer_id":39351780573267,"sku":"POL-951","price":2.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J9808.1200.jpg?v=1621950871"},{"product_id":"pololu-micro-metal-gearmotor-bracket-pair-black","title":"Micro Metal Gearmotor Bracket Pair","description":"\u003cp\u003e\u003cspan\u003eThis compact bracket enables convenient mounting of popular, \u003c\/span\u003e\u003ca href=\"https:\/\/shop.pimoroni.com\/products\/micro-metal-gearmotor-mp\"\u003eSanyo-style miniature metal gearmotors\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003eplastic bracket encloses the otherwise exposed gears, and the mounting tabs capture the nuts for easy installation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe brackets are sold in \u003c\/span\u003e\u003cstrong\u003epairs\u003c\/strong\u003e\u003cspan\u003e, and each bracket comes with two \u003c\/span\u003e#2 screws\u003cspan\u003e and two \u003c\/span\u003enuts\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"White","offer_id":471886829,"sku":"POL-1089","price":3.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1089_in_place.jpg?v=1619704972"},{"product_id":"zumo-chassis-kit-no-motors","title":"Zumo Chassis Kit","description":"\u003cp\u003eThe Pololu Zumo chassis is a small, tracked robot platform that is less than 10 cm on each side, allowing it to qualify for Mini Sumo competitions.\u003c\/p\u003e\n\u003cp\u003eThe chassis is composed of black ABS and features a compartment for four AA batteries and sockets for two micro metal gearmotors. It ships as a kit with two silicone tracks, two drive and two idler sprockets, a 1\/16″ acrylic mounting plate, and mounting hardware. \u003cstrong\u003e(Motors and batteries are not included.)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Zumo chassis kit contains the components necessary to build a small, high-performance tracked robot platform that is compact enough to qualify for Mini Sumo competitions. The chassis is made from black ABS plastic and has sockets for two micro metal gearmotors and a compartment for four AA batteries (motors and batteries are not included). The battery compartment terminals protrude through the chassis and can be accessed from the top side. A black acrylic plate is included with the chassis. This plate holds the motors in place and can be used for mounting your electronics, such as your microcontroller, motor drivers, and sensors.\u003c\/p\u003e\n\u003cp\u003eThe drive system consists of two black silicone tracks, one on each side, that are each supported by a freely spinning idler sprocket and a motor-driven drive sprocket.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.pololu.com\/docs\/0J54\" target=\"_blank\"\u003eAssembly instructions are available here.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eMotors (not included)\u003c\/h2\u003e\n\u003cp\u003eThe Zumo chassis uses \u003cstrong\u003etwo\u003c\/strong\u003e motors, one for each tread. The ideal motors for your robot depend on your desired torque, speed, and current draw, so \u003cstrong\u003emotors are not included\u003c\/strong\u003e with the chassis. Pololu generally recommend using high-power (HP or HPCB, which have long-life carbon brushes) versions of the micro metal gearmotors since the tracks require a decent amount of torque to move effectively; higher gear ratios of the non-HP motors might work if you want lower current draw, but they will be slower and offer less control. Specifically, they primarily recommend the 50:1, 75:1, or 100:1 HP or HPCB motors for use with this chassis. The following table summarizes the key specifications of these three gearmotors. The first four columns are specifications of the motors themselves, while the last column is the measured top speed of a Zumo chassis loaded to a weight of 500 g and driven with these motors. Note that the specifications are for 6V operation, which is approximately the voltage you would get with four alkaline batteries; four NiMH AA cells will typically provide less than 5V.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eMicro Metal Gearmotor\u003c\/th\u003e\n\u003cth\u003eFree-Run Speed @ 6V\u003c\/th\u003e\n\u003cth\u003eStall Torque @ 6V\u003c\/th\u003e\n\u003cth\u003eStall Current @ 6V\u003c\/th\u003e\n\u003cth\u003eTop Zumo Speed @ 6V and 500g\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100:1 HP or \u003ca href=\"\/en-eu\/products\/pololu-micro-metal-gearmotor-6v?variant=31617535017043\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e100:1 HPCB\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e320 RPM\u003c\/td\u003e\n\u003ctd\u003e30 oz·in\u003c\/td\u003e\n\u003ctd\u003e1600 mA\u003c\/td\u003e\n\u003ctd\u003e20 in\/s (50 cm\/s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"\/en-eu\/products\/pololu-micro-metal-gearmotor-6v?variant=31617535180883\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e75:1 HP\u003c\/a\u003e or \u003ca href=\"\/en-eu\/products\/pololu-micro-metal-gearmotor-6v?variant=31617535049811\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e75:1 HPCB\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e400 RPM\u003c\/td\u003e\n\u003ctd\u003e22 oz·in\u003c\/td\u003e\n\u003ctd\u003e1600 mA\u003c\/td\u003e\n\u003ctd\u003e25 in\/s (65 cm\/s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ca href=\"\/en-eu\/products\/pololu-micro-metal-gearmotor-6v?variant=31617535213651\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e50:1 HP\u003c\/a\u003e or \u003ca href=\"\/en-eu\/products\/pololu-micro-metal-gearmotor-6v?variant=31617535082579\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e50:1 HPCB\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd\u003e625 RPM\u003c\/td\u003e\n\u003ctd\u003e15 oz·in\u003c\/td\u003e\n\u003ctd\u003e1600 mA\u003c\/td\u003e\n\u003ctd\u003e40 in\/s (100 cm\/s)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eBatteries (not included)\u003c\/h2\u003e\n\u003cp\u003eThis chassis works with four AA batteries. Pololu recommend using rechargeable AA NiMH cells, which results in a nominal voltage of 4.8 V (1.2 V per cell). When the batteries are fully charged, they will be well above 5 V, and when they are almost spent, they will be well below 5 V. As such, you might consider using a step-up\/step-down voltage regulator to power your logic, since this will hold your logic voltage steady at 5 V, no matter if your battery voltage is above or below 5 V. You can also use alkaline cells, which would nominally give you 6V, but that voltage would drop depending on the load.\u003c\/p\u003e\n\u003ch2\u003eBasic sumo blade (not included)\u003c\/h2\u003e\n\u003cp\u003eWe carry a basic \u003ca href=\"\/en-eu\/products\/basic-sumo-blade-for-zumo-chassis\" target=\"_blank\"\u003estainless steel sumo blade\u003c\/a\u003e that can be mounted to front of the Zumo chassis. With this blade, the Zumo chassis can push around objects, such as other MiniSumo robots. You can also use the design file for this basic blade as the starting point for a custom sumo blade.\u003c\/p\u003e\n\u003ch2\u003eDimensions\u003c\/h2\u003e\n\u003cp\u003eFully assembled, the Zumo chassis is 98 mm wide, 86 mm long, and 39 mm high, with approximately 5 mm of ground clearance.\u003c\/p\u003e\n\u003cp\u003eSince each side is smaller than 10 cm, this chassis meets Mini-Sumo size requirements. The front screws used to mount the acrylic plate to the chassis can also be used to mount a front scoop that can extend up to 14 mm before exceeding the Mini Sumo limits. The assembled Zumo chassis weighs approximately 210 g with motors and batteries.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":418704265,"sku":"POL-1418","price":15.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J6603.1200.jpg?v=1628855564"},{"product_id":"adafruit-mini-pan-tilt-kit-assembled-with-micro-servos","title":"Adafruit Mini Pan-Tilt Kit - Assembled with Micro Servos","description":"\u003cp\u003eThis fully-assembled pan-tilt kit is the perfect way to give your project full range motion with two micro servos.\u003c\/p\u003e\n\u003cp\u003eThe pan-tilt can rotate roughly 180° from side-to-side and can tilt up\u0026amp;downwards around 150°. It also comes fully assembled with two Micro Servos (SG-90 or SG-92 type) included and a 38mm x 36mm space to mount a camera or sensor or whatever you like.\u003c\/p\u003e\n\u003cp\u003eSince the motors are plain, every-day analog servos, you can use any microcontroller or driver. They're good for beginners who want to make stuff move and the pan-tilt is an easy way to give whatever you're making both left-right and up-down motion. In their demo, Adafruit hooked this up with a \u003ca href=\"\/en-eu\/products\/adafruit-pro-trinket\" target=\"_blank\"\u003eTrinket Pro\u003c\/a\u003e and made it do a little dance with the \u003ca href=\"http:\/\/arduino.cc\/en\/reference\/servo\" target=\"_blank\"\u003eArduino Servo library\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e White servo horn comes pre-cut.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBase: 37mm x 33mm x 3mm \/ 1.5\" x 1.3\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eMounting Hole Distances: 30mm x 26mm \/ 1.2\" x 1\"\u003c\/li\u003e\n\u003cli\u003eStanding Height (zero tilt): 67mm \/ 2.6\"\u003c\/li\u003e\n\u003cli\u003eTop Platform: 38mm x 36mm \/ 1.5\"x 1.4\"\u003c\/li\u003e\n\u003cli\u003eWeight: 37g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":989612497,"sku":"ADA1967","price":15.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1967-01_1.jpg?v=1648805422"},{"product_id":"ds-929mg-digital-servo","title":"Digital Servo (DS-929MG)","description":"\u003cp\u003eA great servo at a good price point. With metal gearing and high resolution\/accuracy it's a perfect high quality all-rounder.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMetal gearing\u003c\/li\u003e\n\u003cli\u003eFull adaptor set and dampened mount points\u003c\/li\u003e\n\u003cli\u003eHigh resolution with tight dead band\u003c\/li\u003e\n\u003cli\u003eAccurate positioning and fast control response\u003c\/li\u003e\n\u003cli\u003eQuick acceleration\u003c\/li\u003e\n\u003cli\u003eConstant torque throughout travel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe spent a lot of time looking for a good servo to stock and this is it.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eControl system: Pulse width control 1500us neutral\u003c\/li\u003e\n\u003cli\u003eOperating voltage range: 4.8V~6.0V\u003c\/li\u003e\n\u003cli\u003eOperating temperature range: -20℃ to +60℃\u003c\/li\u003e\n\u003cli\u003eOperating speed: 0.12s\/60°\u003c\/li\u003e\n\u003cli\u003eStall torque: 2.5kg.cm\u003c\/li\u003e\n\u003cli\u003eStanding torque: 2.5kg.cm hold out\u003c\/li\u003e\n\u003cli\u003eIdle current: 10mA at stopped\u003c\/li\u003e\n\u003cli\u003eRunning current: 200mA\/60° no load\u003c\/li\u003e\n\u003cli\u003eStall current: 960mA\u003c\/li\u003e\n\u003cli\u003eDead band width: ≤3usec\u003c\/li\u003e\n\u003cli\u003eMotor type : Cored metal brush\u003c\/li\u003e\n\u003cli\u003ePotentiometer type : 2 Slider\/direct drive\u003c\/li\u003e\n\u003cli\u003eAmplifier type : High efficiency MCU+MOSFET\u003c\/li\u003e\n\u003cli\u003eDimensions : 22.5x11.5x24.6mm\u003c\/li\u003e\n\u003cli\u003eWeight: 9g\u003c\/li\u003e\n\u003cli\u003eGear material: Metal\u003c\/li\u003e\n\u003cli\u003eConnector wire length: 215mm\u003c\/li\u003e\n\u003cli\u003eConnector wire gauge: 28AWG\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Corona","offers":[{"title":"Default Title","offer_id":1015994157,"sku":"COR-DS929-MG","price":8.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/DS-929MG.jpg?v=1419241674"},{"product_id":"adafruit-drv2605l-haptic-motor-controller","title":"Adafruit DRV2605L Haptic Motor Controller","description":"\u003cp\u003eThe DRV2605 from TI is a fancy little motor driver. Rather than controlling a stepper motor or DC motor, its designed specifically for controlling \u003cstrong\u003ehaptic\u003c\/strong\u003e motors - buzzers and vibration motors.\u003c\/p\u003e\n\u003cp\u003eNormally one would just turn those kinds of motors on and off, but this driver has the ability to have various effects when driving a vibe motor. For example, ramping the vibration level up and down, 'click' effects, different buzzer levels, or even having the vibration follow a musical\/audio input.\u003c\/p\u003e\n\u003cp\u003eThis chip is controlled over I2C - after initialization, a 'string' of multiple effects can be strung together in the chips' memory and then triggered to actuate in a row. The built-in effects are much much nicer than just 'on' and 'off' and will make your haptic project a way nicer feeling.\u003c\/p\u003e\n\u003cp\u003eAccording to the product page, it can be used with both LRA (Linear Resonance Actuator) and ERM (Eccentric Rotating Mass) type motors \u003ca href=\"\/en-eu\/products\/vibrating-mini-motor-disc\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ebut Adafruit have only used it with their little vibration pancake ERM.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAdafruit added an onboard 3.3V regulator and logic-level shifting circuitry, making it a perfect choice for interfacing with any 3V or 5V microcontroller or computer, such as Arduino or Raspberry Pi. They've got both \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-drv2605-haptic-controller-breakout\/arduino-code\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eArduino (C\/C++)\u003c\/a\u003e and \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-drv2605-haptic-controller-breakout\/python-circuitpython\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCircuitPython (Python 3) libraries\u003c\/a\u003e available so you can use it with any microcontroller like Arduino, ESP8266, Metro, etc, or with Raspberry Pi or other Linux computers, thanks to Blinka (the CircuitPython library support helper).\u003c\/p\u003e\n\u003cp\u003eAs if that weren't enough, they've also added \u003ca href=\"\/en-eu\/collections\/qwiic\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSparkFun qwiic\u003c\/a\u003e compatible \u003ca href=\"\/en-eu\/collections\/stemma-qt\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSTEMMA QT\u003c\/a\u003e connectors for the I2C bus so you don't even need to solder. For a no-solder experience, just wire up to your favorite micro using a STEMMA QT adapter cable. The Stemma QT connectors also mean the breakout can be used with our various associated accessories. QT Cable is not included, \u003ca href=\"\/en-eu\/products\/jst-sh-cable-qwiic-stemma-qt-compatible\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ebut we have a variety in the shop\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of July 11, 2022\u003c\/strong\u003e - this board now comes in STEMMA QT format. Functionality and schematic remain the same, physical shape has changed to make it plug-and-play, much easier to use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-drv2605-haptic-controller-breakout\/downloads\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet, schematic, PCB files, and Fritzing available in the product tutorial\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eProduct Dimensions: 25.8mm x 17.8mm x 4.6mm \/ 1.0\" x 0.7\" x 0.2\"\u003c\/p\u003e\n\u003cp\u003eProduct Weight: 1.7g \/ 0.1oz\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":1038361429,"sku":"ADA2305","price":6.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2305-08.jpg?v=1662374169"},{"product_id":"adafruit-16-channel-pwm-servo-hat-for-raspberry-pi-mini-kit","title":"Adafruit 16-Channel PWM \/ Servo HAT for Raspberry Pi - Mini Kit","description":"\u003cp\u003eThe Raspberry Pi is a wonderful little computer, but one thing it isn't very good at is controlling DC Servo Motors - these motors need very specific and repetitive timing pulses to set the position. Instead of asking the Pi Linux kernel to send these signals, pop on this handy HAT!\u003c\/p\u003e\n\u003cp\u003eIt adds the capability to control 16 Servos with perfect timing. It can also do PWM up to 1.6 KHz with 12 bit precision, all completely free-running.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor use with Raspberry Pi Model Zero, A+, B+, Pi 2, Pi 3, or Pi 4 (any Pi with 2x20 header)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Adafruit 16-Channel 12-bit PWM\/Servo HAT will drive up to 16 servos or PWM outputs over I2C with only 2 pins. The on-board PWM controller will drive all 16 channels simultaneously with no additional Raspberry Pi processing overhead. What's more, you can stack up to 62 of them to control up to 992 servos - all with the same 2 pins!\u003c\/p\u003e\n\u003cp\u003eWorks with any servo that can be powered by 5V and take 3.3V logic level signals.\u003c\/p\u003e\n\u003cp\u003eBest of all, Adafruit even have a Python library you can use, so you'll be up and running instantly, to make your robotic creation come to life. The Adafruit PWM\/Servo HAT is the perfect solution for any project that requires a lot of servos or PWM outputs! \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-servo-hat-for-raspberry-pi\/\" target=\"_blank\"\u003ePlease check out the detailed tutorial for lots more information including diagrams, schematics, installation instructions and more\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eEach order comes with a Servo HAT, a 2-pin terminal block, four 3x4 headers and a 2x20 socket header. You'll need to do some light through-hole soldering to attach the headers onto the HAT circuit board, but its easy to do with basic soldering tools like a soldering iron and rosin core electronics solder. If you would like to stack multiple HATs onto one Pi, you can also pick up a 2x20 stacking header and a set of right-angle 3x4 headers that should be soldered on instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note!\u003c\/strong\u003e \u003cstrong\u003eThis kit does not come with Raspberry Pi, servos, or required 5V power supply.\u003c\/strong\u003e Also, the terminal blocks included with your product may be blue or black.\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions w\/ components: 65mm x 56mm x 13mm \/ 2.6\" x 2.2\" x 0.5\"\u003c\/li\u003e\n\u003cli\u003eWeight (unsoldered HAT only): 14g \/ 0.03 lbs.\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-servo-hat-for-raspberry-pi\/downloads\" target=\"_blank\"\u003eDatasheet, schematic, PCB files, and Fritzing object available from the product tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of December 14, 2022\u003c\/strong\u003e – Adafruit have updated this PCB with \u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_Pinguin\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAdafruit Pinguin\u003c\/a\u003e to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eLEARN\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-servo-hat-for-raspberry-pi\" target=\"_blank\"\u003eAdafruit 16-Channel PWM\/Servo HAT \u0026amp; Bonnet for Raspberry Pi\u003c\/a\u003e - 16 channels of servo-bustin' power for your Pi\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":1038409565,"sku":"ADA2327","price":15.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2327-13_db412664-c561-4f24-9159-2b18f3dd45e4.jpg?v=1646663750"},{"product_id":"adafruit-dc-stepper-motor-hat-for-raspberry-pi-mini-kit","title":"Adafruit DC \u0026 Stepper Motor HAT for Raspberry Pi - Mini Kit","description":"\u003cp\u003eLet your robotic dreams come true with the new DC+Stepper Motor HAT from Adafruit.\u003c\/p\u003e\n\u003cp\u003eThis Raspberry Pi add-on is perfect for any motion project as it can drive up to 4 DC or 2 Stepper motors with full PWM speed control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRaspberry Pi and motors are not included.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003efully-dedicated PWM driver chip\u003c\/strong\u003e onboard to both control motor direction and speed.\u003c\/li\u003e\n\u003cli\u003eThis chip handles all the motor and speed controls over I2C.\u003c\/li\u003e\n\u003cli\u003eOnly two pins (SDA \u0026amp; SCL) are required to drive the multiple motors\u003c\/li\u003e\n\u003cli\u003esince it's I2C you can also connect any other I2C devices or HATs to the same pins.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn fact, \u003cstrong\u003eyou can even stack multiple Motor HATs\u003c\/strong\u003e, up to 32 of them, for controlling up to 64 stepper motors or 128 DC motors (or a mix of the two) - just remember to purchase and solder in a stacking header instead of the one we include.\u003c\/p\u003e\n\u003cp\u003eMotors are controlled by TB6612 MOSFET drivers with \u003cstrong\u003e1.2A per channel and 3A peak current capability\u003c\/strong\u003e\u003cstrong\u003e, \u003c\/strong\u003ea big improvement over L293D drivers and there are built-in flyback diodes as well.\u003c\/p\u003e\n\u003cp\u003eThey've even added a polarity protection FET on the power pins and a bit of prototyping area. And the HAT is assembled and tested at Adafruit so all you have to do is solder on the included 2x20 plain header and the terminal blocks.\u003c\/p\u003e\n\u003cp\u003eLets check out these specs again:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4 H-Bridges: TB6612 chipset provides \u003cstrong\u003e1.2A per bridge\u003c\/strong\u003e (3A peak) with thermal shutdown protection, internal kickback protection diodes. Can run motors on 4.5VDC to 13.5VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 4 bi-directional DC\u003c\/strong\u003e motors with individual 8-bit speed selection (so, about 0.5% resolution)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to 2 stepper motors\u003c\/strong\u003e (unipolar or bipolar) with single coil, double coil, interleaved or micro-stepping.\u003c\/li\u003e\n\u003cli\u003eBig terminal block connectors to easily hook up wires (18-26AWG) and power\u003c\/li\u003e\n\u003cli\u003ePolarity protected 2-pin terminal block and jumper to connect external 5-12VDC power\u003c\/li\u003e\n\u003cli\u003eWorks best with Raspberry Pi model A+, B+, or Pi 2, but can be used with a model A or B if you purchase a 2x13 extra-tall header and solder that instead of the 2x20\u003c\/li\u003e\n\u003cli\u003eInstall the easy-to-use Python library, check out the examples and you're ready to go!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes with an assembled \u0026amp; tested HAT, terminal blocks, and 2x20 plain header. Some soldering is required to attach the headers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRaspberry Pi, motors, and battery pack are not included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-dc-and-stepper-motor-hat-for-raspberry-pi\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out Adafruits detailed tutorial for tons of info including schematics, wiring diagrams, python libraries and example walkthroughs.\u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":1066475533,"sku":"ADA2348","price":18.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2348.jpg?v=1423063926"},{"product_id":"explorer-hat","title":"Explorer HAT Pro","description":"\u003cp\u003eExplorer HAT Pro adds a lot of useful tools to your Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003eIt has digital inputs and outputs, capacitive touch pads, croc. clip compatible pads, coloured LEDs, analog inputs, motor drivers, and a mini breadboard for prototyping your projects\u003c\/p\u003e\n\u003cp\u003eGreat for little robots, games, science experiments, exploring small electronic circuits, and interacting with your Pi.\u003c\/p\u003e\n\u003cp\u003eWe've put together a handy little \u003ca href=\"\/en-eu\/products\/explorer-hat-pro-parts-kit\" target=\"_blank\"\u003eExplorer HAT Pro parts kit\u003c\/a\u003e with everything you need to get started building circuits including LEDs, dials, a buzzer, and even a temperature sensor! Explorer HAT Pro also goes great with our no-soldering-required \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-with-motor-shim\" target=\"_blank\"\u003emicro metal gearmotors\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFour buffered 5V tolerant inputs (perfect for Arduino compatibility)\u003c\/li\u003e\n\u003cli\u003eFour powered 5V outputs (up to 500mA total across all four channels)\u003c\/li\u003e\n\u003cli\u003eFour capacitive touch pads (labelled 1, 2, 3, 4)\u003c\/li\u003e\n\u003cli\u003eFour capacitive crocodile clip pads (labelled 5, 6, 7, 8)\u003c\/li\u003e\n\u003cli\u003eFour coloured LEDs (red, green, blue, and yellow)\u003c\/li\u003e\n\u003cli\u003eFour analog inputs\u003c\/li\u003e\n\u003cli\u003eTwo H-bridge motor drivers (up to 200mA per channel; soft PWM control)\u003c\/li\u003e\n\u003cli\u003eA heap of useful (unprotected) 3v3 goodies from the GPIO\u003c\/li\u003e\n\u003cli\u003eA mini breadboard on top!\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinout.xyz\/pinout\/explorer_hat_pro\" target=\"_blank\"\u003eExplorer HAT Pro pinout\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible with all 40-pin header Raspberry Pi models\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/pimoroni\/explorer-hat\" target=\"_blank\"\u003ePython library\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eComes fully assembled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSoftware\u003c\/h2\u003e\n\u003cp\u003eWe've made it super-quick to get to grips with Explorer HAT Pro with our \u003ca href=\"https:\/\/github.com\/pimoroni\/explorer-hat\" target=\"_blank\"\u003ePython library\u003c\/a\u003e, including a bunch of examples to show off all of Explorer HAT Pro's functions.\u003c\/p\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe inputs use a 5-channel buffer that will accept anything from 2V-5V as logic high\u003c\/li\u003e\n\u003cli\u003eMini breadboard has 170 points, 17x5 per half of the breadboard\u003c\/li\u003e\n\u003cli\u003eDue to exciting global electronic parts shortages, some Explorer Hat Pros manufactured in 2021 have an \u003ca href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/ads1115.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/ads1115.pdf\"\u003eADS1115\u003c\/a\u003e ADC instead of the usual \u003ca href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/ads1015.pdf\" target=\"_blank\" data-mce-href=\"https:\/\/www.ti.com\/lit\/ds\/symlink\/ads1015.pdf\"\u003eADS1015\u003c\/a\u003e. Our Python libraries have been updated to automatically detect and adjust for this chip change.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":1074827129,"sku":"PIM082","price":18.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Explorer_HAT_Pro_1_of_3.JPG?v=1539264434"},{"product_id":"micro-metal-gearmotor-extended-back-shaft","title":"Micro Metal Gearmotor (Extended back shaft)","description":"\u003cp\u003eThis gearmotor is a miniature brushed DC motor with a metal gearbox available in a range of gearing ratios depending on use.\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003eSpeed @ 6V\u003c\/th\u003e\n\u003cth\u003eFree-run current @ 6V\u003c\/th\u003e\n\u003cth\u003eStall torque @ 6V (minimum)\u003c\/th\u003e\n\u003cth\u003eStall current @ 6V\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e11:1\u003c\/td\u003e\n\u003ctd\u003e1800±10% rpm\u003c\/td\u003e\n\u003ctd\u003e80mA (160mA max)\u003c\/td\u003e\n\u003ctd\u003e0.12kg. cm\u003c\/td\u003e\n\u003ctd\u003e650mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/12FN20-11-061950.pdf?v=1625057292\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20:1\u003c\/td\u003e\n\u003ctd\u003e1050±10% rpm\u003c\/td\u003e\n\u003ctd\u003e90mA (180mA max)\u003c\/td\u003e\n\u003ctd\u003e0.26kg. cm\u003c\/td\u003e\n\u003ctd\u003e850mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/12N20-20-061050.pdf?v=1625057292\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50:1\u003c\/td\u003e\n\u003ctd\u003e420±10% rpm\u003c\/td\u003e\n\u003ctd\u003e90mA max\u003c\/td\u003e\n\u003ctd\u003e0.4kg. cm\u003c\/td\u003e\n\u003ctd\u003e920mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/XG-2014032803_JL-12FN20-50-06420.pdf?v=1604917983\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e110:1\u003c\/td\u003e\n\u003ctd\u003e190±10% rpm\u003c\/td\u003e\n\u003ctd\u003e39mA (78mA max)\u003c\/td\u003e\n\u003ctd\u003e0.9kg. cm\u003c\/td\u003e\n\u003ctd\u003e600mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/12FN20-110-06190.pdf?v=1628519639\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e298:1\u003c\/td\u003e\n\u003ctd\u003e75±10% rpm\u003c\/td\u003e\n\u003ctd\u003e100mA max\u003c\/td\u003e\n\u003ctd\u003e2.1kg. cm\u003c\/td\u003e\n\u003ctd\u003e920mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/XG-2014032805_JL-12FN20-298-0675.pdf?v=1604917983\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1006:1\u003c\/td\u003e\n\u003ctd\u003e14.2±10% rpm\u003c\/td\u003e\n\u003ctd\u003e56mA max\u003c\/td\u003e\n\u003ctd\u003e2.9kg. cm\u003c\/td\u003e\n\u003ctd\u003e380mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/X19-7_JL-12FN20-1006-0614.pdf?v=1604917983\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eAll of the micro metal gearmotors, except the 1006:1 variant, have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.\u003c\/li\u003e\n\u003cli\u003eLong (12mm), 3 mm-diameter D-shaped metal output shaft.\u003c\/li\u003e\n\u003cli\u003e4.5mm long, 1mm diameter back shaft, great for \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/optical-encoder-pair-kit-for-micro-metal-gearmotors-3-3v\"\u003eoptical encoders! \u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"11:1","offer_id":32587851338,"sku":"COM0809","price":4.25,"currency_code":"GBP","in_stock":true},{"title":"20:1","offer_id":32587847050,"sku":"COM0808","price":4.25,"currency_code":"GBP","in_stock":true},{"title":"50:1","offer_id":3073681025,"sku":"COM0800","price":4.25,"currency_code":"GBP","in_stock":true},{"title":"110:1","offer_id":39421592043603,"sku":"COM0818","price":4.25,"currency_code":"GBP","in_stock":true},{"title":"298:1","offer_id":3073681089,"sku":"COM0801","price":4.25,"currency_code":"GBP","in_stock":true},{"title":"1006:1","offer_id":3073681153,"sku":"COM0802","price":4.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Gearmotor_2_of_2.JPG?v=1530181700"},{"product_id":"adafruit-tb6612-1-2a-dc-stepper-motor-driver-breakout-board","title":"Adafruit TB6612 1.2A DC\/Stepper Motor Driver Breakout Board","description":"\u003cp\u003eSpin two DC motors, step one bi-polar or uni-polar stepper, or fire off two solenoids with 1.2A per channel using the TB6612.\u003c\/p\u003e\n\u003cp\u003eThese are perhaps better known as \"\u003ca href=\"\/en-eu\/products\/adafruit-motor-stepper-servo-shield-for-arduino-v2-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ethe drivers in the assembled Adafruit Motorshield\u003c\/a\u003e or \u003ca href=\"\/en-eu\/products\/adafruit-dc-stepper-motor-hat-for-raspberry-pi-mini-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eMotor HAT\u003c\/a\u003e.\" We really like these dual H-bridges, so if you want to control motors without a shield or HAT these are easy to include on any solderless breadboard or perma-proto.\u003c\/p\u003e\n\u003cp\u003eAdafruit solder on TB6612 onto a breakout board for you here, with a polarity protection FET on the motor voltage input and a pullup on the \"standby\" enable pin. Each breakout chip contains two full H-bridges (four half H-bridges). That means you can drive four solenoids, two DC motors bi-directionally, or one stepper motor. Just make sure they're good for 1.2 Amp or less of current, since that's the limit of this chip. They do handle a peak of 3A but that's just for a short amount of time. What we like most about this particular driver is that it comes with built in kick-back diodes internally so you don't have to worry about the inductive kick damaging your project or driver!\u003c\/p\u003e\n\u003cp\u003eThere's two digital inputs per H-bridge (one for each half of the bridge) as well as a PWM input per driver so you can control motor speed. Runs at 2.7V-5V logic. The motor voltage is separate from the logic voltage. Good for motor voltages from 4.5V up to 13.5V! This wont work well for 3V motors.\u003c\/p\u003e\n\u003cp\u003eComes as one assembled and tested breakout plus a small strip of header. You'll need to do some light soldering to attach the header onto the breakout PCB. Arduino, motors, and power supply not included. \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-tb6612-h-bridge-dc-stepper-motor-driver-breakout\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the handy tutorial on assembly and wiring!\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eCurrent Limit: 1.2A\u003c\/li\u003e\n\u003cli\u003eSize: 27mm x 19mm x 3mm \/ 1.1\" x 0.7\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eWeight: 1.8g\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-tb6612-h-bridge-dc-stepper-motor-driver-breakout\/downloads\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheets, EagleCAD PCB files, and Fritzing object available in the product tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":3225743105,"sku":"ADA2448","price":6.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2448-00_1.jpg?v=1648807238"},{"product_id":"micro-metal-gearmotor-to-lego-axle-adaptor","title":"Micro Metal Gearmotor to LEGO® Axle Adaptor (pack of 4)","description":"\u003cp\u003eThis little dingus connects our popular \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/micro-metal-gearmotor-extended-back-shaft\"\u003emicro metal gearmotors\u003c\/a\u003e to a standard LEGO\u003csup\u003e®\u003c\/sup\u003e axle - ideal for making your brick creations move autonomously!\u003c\/p\u003e\n\u003cp\u003eInjection moulded from snazzy purple plastic they are made in the UK. Super-handy and durable for all sorts of projects - we've not managed to wear one out yet!\u003c\/p\u003e\n\u003cp\u003eEach pack contains four adaptors - you just bring the LEGO\u003csup\u003e®\u003c\/sup\u003e and \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\" rel=\"noopener noreferrer\"\u003egearmotors\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #999999;\"\u003e\u003cem\u003eLEGO\u003csup\u003e®\u003c\/sup\u003e is a trademark of the LEGO Group of companies which does not sponsor, authorize or endorse this product.\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":7323709121,"sku":"PIM132","price":3.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/PIM132_-_half_2_of_2.JPG?v=1444909902"},{"product_id":"8-channel-pwm-or-servo-featherwing-add-on-for-all-feather-boards","title":"8-Channel PWM or Servo FeatherWing Add-on For All Feather Boards","description":"\u003cp\u003eA Feather board without ambition is a Feather board without FeatherWings! This is the \u003cstrong\u003e8-Channel PWM or Servo​ FeatherWing\u003c\/strong\u003e, you can add 8 x 12-bit PWM outputs to your FeatherWing.\u003c\/p\u003e\n\u003cp\u003eUsing our \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/feather-stacking-headers-12-pin-and-16-pin-female-headers\" target=\"_blank\"\u003eFeather Stacking Headers\u003c\/a\u003e or \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/feather-header-kit-12-pin-and-16-pin-female-header-set\" target=\"_blank\"\u003eFeather Female Headers\u003c\/a\u003e you can connect a FeatherWing on top or bottom of your Feather board and let the board take flight!\u003c\/p\u003e\n\u003cp\u003eYou want to make a cool robot, maybe a hexapod walker, or maybe just a piece of art with a lot of moving parts. Or maybe you want to drive a lot of LEDs with precise PWM output. What now? You could give up OR you could just get our handy PWM and Servo FeatherWing. It's a lot like the popular \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-16-channel-12-bit-pwm-servo-shield-i2c-interface\" target=\"_blank\"\u003ePWM\/Servo Shield\u003c\/a\u003e but with half the channels \u0026amp; squished into a nice small portable size and works with any of our Feather boards.\u003c\/p\u003e\n\u003cp\u003eSince the FeatherWing only uses the I2C (SDA \u0026amp; SCL pins), it works with any and all Feathers- ATmega32u4, ATSAM M0 or ESP8266-based. You can stack it with any other FeatherWing or with itself (just make sure you have each wing with a unique I2C address) \u003ca href=\"https:\/\/shop.pimoroni.com\/search?type=product\u0026amp;q=feather\" target=\"_blank\"\u003eCheck out our range of Feather boards here.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThere's an I2C-controlled PWM driver with a built in clock. That means that, unlike the TLC5940 family, you do not need to continuously send it signal tying up your microcontroller, its completely free running!\u003c\/li\u003e\n\u003cli\u003eIt is 5V compliant, which means you can control it from a 3.3V Feather and still safely drive up to 6V outputs (this is good for when you want to control white or blue LEDs with 3.4+ forward voltages)\u003c\/li\u003e\n\u003cli\u003e6 address select pins so you can stack up to 62 of these on a single i2c bus, a total of 992 outputs - that's a lot of servos or LEDs\u003c\/li\u003e\n\u003cli\u003eAdjustable frequency PWM up to about 1.6 KHz\u003c\/li\u003e\n\u003cli\u003e12-bit resolution for each output - for servos, that means about 4us resolution at 60Hz update rate\u003c\/li\u003e\n\u003cli\u003eConfigurable push-pull or open-drain output\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWe wrapped up this lovely chip into a FeatherWing with a couple nice extras\u003c\/strong\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTerminal block for power input (or you can use the 0.1\" breakouts on the side)\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection on the terminal block input\u003c\/li\u003e\n\u003cli\u003eGreen power-good LED\u003c\/li\u003e\n\u003cli\u003eTwo groups of 4 outputs on either side, 8 total.\u003c\/li\u003e\n\u003cli\u003eStackable design. You'll need to pick up stacking headers and right angle 3x4 headers in order to stack on top of this shield without the servo connections getting in the way.\u003c\/li\u003e\n\u003cli\u003eA spot to place a big capacitor on the V+ line (in case you need it)\u003c\/li\u003e\n\u003cli\u003e220 ohm series resistors on all the output lines to protect them, and to make driving LEDs trivial\u003c\/li\u003e\n\u003cli\u003eSolder jumpers for the 6 address select pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis product comes with a fully tested and assembled wing as well as 2 pieces of 3x4 male straight header (for servo\/LED plugs), a 2-pin terminal block (for power) and a stick of 0.1\" header so you can plug into a Feather. A little light soldering will be required to assemble and customize the board by attaching the desired headers but it is a 15 minute task that even a beginner can do.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eServos and Feather not included\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-slash-servo-shield\" target=\"_blank\"\u003eFor additional information see the tutorial for the bigger and similar PWM\/Servo Shield plus you can get Adafruits documented Arduino library which has both PWM and Servo examples!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/www.adafruit.com\/datasheets\/PCA9685.pdf\" target=\"_blank\"\u003ePCA9685 datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eDimensions: 50.8mm x 22.9mm x 1.6mm \/ 2\" x 0.9\" x 0.06\"\u003c\/li\u003e\n\u003cli\u003eWeight: 3.9g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":13710765383,"sku":"ADA2928","price":8.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2928.jpg?v=1452532410"},{"product_id":"servo-generic-sub-micro-size","title":"Sub-micro 160° Servo","description":"\u003cp\u003eHere is a simple, low-cost, high quality servo for all your mechatronic needs.\u003c\/p\u003e\n\u003cp\u003eThis servo is very similar in size and specifications to the Hitec HS-55. This little guy is able to take in 6 volts and deliver 20.8 oz-in. of maximum torque at 0.10 sec\/60°\u003c\/p\u003e\n\u003cp\u003eThis small servo comes with a standard 3 pin power and control cable, and all hardware listed below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This servo is rated for 180° rotation, but in actuality it only hits ~160°.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage: 4.8-6.0 Volts\u003c\/li\u003e\n\u003cli\u003eTorque: 16.6\/20.8 oz-in. (4.8\/6.0V)\u003c\/li\u003e\n\u003cli\u003eSpeed: 0.15\/0.10 sec\/60° (4.8\/6.0V)\u003c\/li\u003e\n\u003cli\u003eRotation: ~160°\u003c\/li\u003e\n\u003cli\u003eSingle Top Ball Bearing\u003c\/li\u003e\n\u003cli\u003eNylon Gears\u003c\/li\u003e\n\u003cli\u003e3-Pole Ferrite Motor\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1x Micro Size Servo\u003c\/li\u003e\n\u003cli\u003e1x Single Arm Micro Horn\u003c\/li\u003e\n\u003cli\u003e1x Double Arm Micro Horn\u003c\/li\u003e\n\u003cli\u003e1x Four Point Micro Horn\u003c\/li\u003e\n\u003cli\u003e1x Circle Micro Horn\u003c\/li\u003e\n\u003cli\u003e2x 2x8mm Phillips Screw\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDimension:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e31.8 x 11.7 x 29mm\u003c\/li\u003e\n\u003cli\u003eWire Length: 160mm\u003c\/li\u003e\n\u003cli\u003eWeight: 9g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/cdn.sparkfun.com\/datasheets\/Robotics\/Small%20Servo%20-%20ROB-09065.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/mbed.org\/cookbook\/Servo\" target=\"_blank\"\u003embed Example\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":19330899143,"sku":"ROB-09065","price":8.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/09065-01a.jpg?v=1460562117"},{"product_id":"pan-tilt-hat","title":"Pan-Tilt HAT","description":"\u003cp\u003eIdeal for a mini CCTV system, this set of horizontal and vertical motion servos will give you Pi camera movement with a minimum of fuss.\u003c\/p\u003e\n\u003cp\u003ePan-Tilt HAT lets you mount and control one of our pan-tilt modules right on top of your Raspberry Pi. The HAT and its on-board microcontroller let you independently drive the two servos (pan and tilt), as well as driving up to 24 regular LED (with PWM control) or NeoPixel RGB (or RGBW) LEDs. There's also a handy slot through which you can route the servo, LED, and camera cables. The module pans and tilts through 180 degrees in each axis.\u003c\/p\u003e\n\u003cp\u003eUse Pan-Tilt HAT with a Pi camera (v1 or v2) for face-tracking. Or mount it on top of your roving robot as a set of eyes. Why not stick a foam sword on top and make it swashbuckle?!\u003c\/p\u003e\n\u003cp\u003eThere's absolutely no soldering required (unless you decide to use the optional NeoPixel strip or ring), as the servos on the pan-tilt module have female jumper wires attached and we've soldered a strip of right-angled header pins to the underside of the HAT to connect them up.\u003c\/p\u003e\n\u003cp\u003eWe've also included a handy little acrylic camera mount to hold your camera snugly in the head of the pan-tilt module. The mount has a couple of mounting holes at the top to hold a NeoPixel stick and there's a neat little frosted diffuser to make the light super-dreamy. :-) We suggest one of the \u003ca href=\"\/en-eu\/products\/neopixel-stick-8-x-5050-rgbw-leds\" target=\"_blank\"\u003eAdafruit RGBW NeoPixel sticks\u003c\/a\u003e, as they give a lovely pure white (or any other colour!)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote that the \u003ca href=\"\/en-eu\/products\/raspberry-pi-camera-module-v2-1-with-mount\" target=\"_blank\"\u003ePi camera\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/neopixel-stick-8-x-5050-rgbw-leds\" target=\"_blank\"\u003eNeoPixel strip\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/break-away-0-1-36-pin-strip-male-header-10-pieces\" target=\"_blank\"\u003emale header\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/jumper-jerky\" target=\"_blank\"\u003efemale to female jumper wires\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/raspberry-pi-3-with-pibow-case\" target=\"_blank\"\u003ePi 3 and Pibow\u003c\/a\u003e are not included. You'll need to pick them up separately!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note that the acrylic camera mount parts in this kit are not compatible with Raspberry Pi Camera Module 3.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.raspberrypi.org\/magpi-issues\/MagPi54.pdf\"\u003eThe MagPi\u003c\/a\u003e said, in their four star review, that Pan-Tilt HAT was a \u003cem\u003e\"highly enjoyable and extremely cute accessory\"\u003c\/em\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePan-tilt module (180 degrees motion through each axis) with two servos\u003c\/li\u003e\n\u003cli\u003eHAT with two servo channels, one PWM or NeoPixel RGB (or RGBW) LED channel\u003c\/li\u003e\n\u003cli\u003eRight-angled header pre-soldered to underside of HAT for servo and LED channels\u003c\/li\u003e\n\u003cli\u003eSlot to route servo, LED, and camera cables through\u003c\/li\u003e\n\u003cli\u003eAcrylic mount to hold Pi v1 or v2 camera and NeoPixel strip (with diffuser) in place\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinout.xyz\/pinout\/pan_tilt_hat\"\u003ePan-Tilt HAT pinout\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible with all 40-pin header Raspberry Pi models\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/pimoroni\/pantilt-hat\" target=\"_blank\"\u003ePython library\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eComes fully assembled\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/PanTiltHAT_schematic.pdf?v=1667910096\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pan-tilt-hat-drawing.png?v=1677586755\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDimensional drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSoftware\u003c\/h2\u003e\n\u003cp\u003eWe've put together a super-simple \u003ca href=\"https:\/\/github.com\/pimoroni\/pantilt-hat\"\u003ePython library\u003c\/a\u003e to make it super-easy to control Pan-Tilt HAT. Just tell Pan-Tilt HAT to which angle you'd like it to pan or tilt (from -90 to +90 degrees) and away it goes! There's even a couple of examples showing you how to pan and tilt, and control connected NeoPixels.\u003c\/p\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: The pan-tilt module measures approx 50 x 37 x 61 \u003cspan data-mce-fragment=\"1\"\u003emm (L x W x H). The HAT and connecting pieces add a further 13.2mm to the height.\u003c\/span\u003e\u003cbr\u003eThe servos draw a lot of current, thus we recommend a good quality 2.5A power supply like the \u003ca href=\"\/en-eu\/products\/raspberry-pi-universal-power-supply\" target=\"_blank\"\u003eofficial Raspberry Pi power supply\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-eu\/products\/raspberry-pi-camera-module-v2-1-with-mount\" target=\"_blank\"\u003ePi camera\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/neopixel-stick-8-x-5050-rgbw-leds\" target=\"_blank\"\u003eNeoPixel strip\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/break-away-0-1-36-pin-strip-male-header-10-pieces\" target=\"_blank\"\u003emale header\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/jumper-jerky\" target=\"_blank\"\u003efemale to female jumper wires\u003c\/a\u003e, \u003ca href=\"\/en-eu\/products\/raspberry-pi-3-with-pibow-case\" target=\"_blank\"\u003ePi 3 and Pibow\u003c\/a\u003e are not included.\u003c\/li\u003e\n\u003cli\u003eConnect the brown wires of the servo cables to the GND pins on the servo channels.\u003c\/li\u003e\n\u003cli\u003eServo channel 1 controls pan and servo channel 2 controls tilt, although you can easily swap these in software.\u003c\/li\u003e\n\u003cli\u003eYou may require a set of \u003ca href=\"\/en-eu\/products\/brass-m2-5-standoffs-for-pi-hats-black-plated-pack-of-2\"\u003estandoffs\u003c\/a\u003e to use Pan-Tilt HAT with the Raspberry Pi 3B+ and later, because of the POE header.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pimoroni","offers":[{"title":"Full kit","offer_id":22408353287,"sku":"PIM183","price":30.75,"currency_code":"GBP","in_stock":false},{"title":"without Pan-Tilt module","offer_id":33704345034,"sku":"PIM250","price":13.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Pan-Tilt_HAT_5_of_5.JPG?v=1539264415"},{"product_id":"pimoroni-gearmotor-bracket-pair","title":"Micro Metal Gearmotor Bracket (pack of 2)","description":"\u003cp\u003eThese simple little brackets are the best way to securely mount our \u003ca href=\"https:\/\/pimoroni-2.myshopify.com\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emicro metal gearmotors\u003c\/a\u003e to your project, whether it be a robot, a fan, or a pulley system.\u003c\/p\u003e\n\u003cp\u003eWe've designed the mounting tabs to capture the nuts for easy installation. They have the same hexagonal shape as the nuts and hold them in place, so that you don't have to!\u003c\/p\u003e\n\u003cp\u003eThe distance between the mounting hole centres is 18mm and the bolt diameters are 2mm, if you need to drill, laser cut or 3D print your own chassis to mount the motors to.\u003c\/p\u003e\n\u003cp\u003eThese also go together great with our \u003ca href=\"https:\/\/pimoroni-2.myshopify.com\/products\/micro-metal-gearmotor-to-lego-axle-adaptor\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emicro metal gearmotor to LEGO® axle adaptors\u003c\/a\u003e, allowing you to incorporate the gearmotors into your LEGO projects.\u003c\/p\u003e\n\u003cp\u003eKit contains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x brackets\u003c\/li\u003e\n\u003cli\u003e2 x M2 nylon nuts and bolts\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":23686314439,"sku":"COM0803","price":3.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Gearmotor_Bracket_1_of_3.JPG?v=1467033740"},{"product_id":"motor-shim-pack-of-5","title":"Micro Metal Gearmotor Push Header Shim (pack of 5)","description":"\u003cp\u003eA lovely little shim to mount on the back of our micro metal gearmotors that provides a male 0.1\" push header.\u003c\/p\u003e\n\u003cp\u003eSimply solder this board to the back of a \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-mp\"\u003emicro metal gearmotor\u003c\/a\u003e and from that point forth be free from soldering! Ideal for making motors more friendly for workshops or children. We've also added a decoupling capacitor right at the motor terminals to reduce noise.\u003c\/p\u003e\n\u003cp\u003eDon't want to solder? You can buy our \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-with-motor-shim\" target=\"_blank\"\u003emicro metal gearmotors with the shim pre-applied\u003c\/a\u003e!\u003c\/p\u003e\n\u003ch2\u003eKit includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e5 x Micro metal gearmotor shim\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cp\u003eThese shims do not fit the HPCB gearmotors.\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":24169581255,"sku":"COM0804","price":4.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Motor_Shim_group_5039c439-7667-45d7-9898-8cc7ba021f81.JPG?v=1467645446"},{"product_id":"micro-metal-gearmotor-with-motor-shim","title":"Micro Metal Gearmotor with Push Header Shim","description":"\u003cp\u003eOur ever popular micro metal gearmotor, now available with a solderless push header shim for ease of prototyping!\u003c\/p\u003e\n\u003cp\u003eConnect your motor to your project with some \u003ca href=\"\/en-eu\/products\/jumper-jerky\" target=\"_blank\"\u003ejumper jerky\u003c\/a\u003e and you're good to go!\u003c\/p\u003e\n\u003cp\u003eThis gearmotor is a miniature brushed DC motor with a metal gearbox available in a range of gearing ratios depending on use.\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eRatio\u003c\/th\u003e\n\u003cth\u003eSpeed @ 6V\u003c\/th\u003e\n\u003cth\u003eFree-run current @ 6V\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eStall torque @ 6V (minimum)\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003eStall current @ 6V\u003c\/th\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/JL-12FN20-11-061850_-Model.pdf?4435136305891419737\" target=\"_blank\"\u003e11:1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1800±10% rpm\u003c\/td\u003e\n\u003ctd\u003e80mA (160mA max)\u003c\/td\u003e\n\u003ctd\u003e0.12kg. cm\u003c\/td\u003e\n\u003ctd\u003e650mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/JL-12FN20-11-061850_-Model.pdf?4435136305891419737\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/JL-12FN20-20-061050_-Model.pdf?4435136305891419737\" target=\"_blank\"\u003e20:1\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003e1050±10% rpm\u003c\/td\u003e\n\u003ctd\u003e90mA (180mA max)\u003c\/td\u003e\n\u003ctd\u003e0.26kg. cm\u003c\/td\u003e\n\u003ctd\u003e850mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/JL-12FN20-20-061050_-Model.pdf?4435136305891419737\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e50:1\u003c\/td\u003e\n\u003ctd\u003e420±10% rpm\u003c\/td\u003e\n\u003ctd\u003e90mA max\u003c\/td\u003e\n\u003ctd\u003e0.4kg. cm\u003c\/td\u003e\n\u003ctd\u003e920mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/XG-2014032803_JL-12FN20-50-06420.pdf?v=1604917983\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e298:1\u003c\/td\u003e\n\u003ctd\u003e75±10% rpm\u003c\/td\u003e\n\u003ctd\u003e100mA max\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e2.1kg. cm\u003c\/td\u003e\n\u003ctd\u003e920mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/XG-2014032805_JL-12FN20-298-0675.pdf?v=1604917983\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1006:1\u003c\/td\u003e\n\u003ctd\u003e14.2±10% rpm\u003c\/td\u003e\n\u003ctd\u003e56mA max\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e2.9kg. cm\u003c\/td\u003e\n\u003ctd\u003e380mA\u003c\/td\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/X19-7_JL-12FN20-1006-0614.pdf?v=1604917983\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003eAll of the micro metal gearmotors, except the 1006:1 variant, have the same physical dimensions, so one version can be easily swapped for another if your design requirements change.\u003c\/li\u003e\n\u003cli\u003eLong (12mm), 3 mm-diameter D-shaped metal output shaft.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"11:1","offer_id":32587886666,"sku":"COM0811","price":5.5,"currency_code":"GBP","in_stock":false},{"title":"20:1","offer_id":32587883594,"sku":"COM0810","price":5.5,"currency_code":"GBP","in_stock":false},{"title":"50:1","offer_id":24169921543,"sku":"COM0805","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"298:1","offer_id":24169921671,"sku":"COM0806","price":5.5,"currency_code":"GBP","in_stock":true},{"title":"1006:1","offer_id":24169921735,"sku":"COM0807","price":5.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Motor_Shim_on_motor.JPG?v=1544026340"},{"product_id":"adafruit-drv8871-dc-motor-driver-breakout-board-3-6a-max","title":"Adafruit DRV8871 DC Motor Driver Breakout Board - 3.6A Max","description":"\u003cp\u003eCrank up your robotics with powerful \u003cb\u003eAdafruit DRV8871 motor driver breakout board\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eThis motor driver has a lot of great specs that make it useful for a wide variety of mechatronics. In particular, the simple resistor-set current limiting and auto-magic PWM support make it super easy to use with just about any brushed DC motor.\u003c\/p\u003e\n\u003cp\u003eCheck out the specs for the DRV8871:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6.5V to 45V motor power voltage\u003c\/li\u003e\n\u003cli\u003eUp to 5.5V logic level on IN pins\u003c\/li\u003e\n\u003cli\u003e565mΩ Typical RDS(on) (high + low)\u003c\/li\u003e\n\u003cli\u003e3.6A peak current\u003c\/li\u003e\n\u003cli\u003ePWM control\u003c\/li\u003e\n\u003cli\u003eCurrent limiting\/regulation without an inline sense resistor\u003c\/li\u003e\n\u003cli\u003eUndervoltage lockout\u003c\/li\u003e\n\u003cli\u003eOvercurrent protection\u003c\/li\u003e\n\u003cli\u003eThermal shutdown\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUsing it is super simple. Connect your motor to the OUT terminal block. Power the board with 6.5-45VDC power on \u003cb\u003eVMotor\u003c\/b\u003e and provide the H-bridge input control on \u003cb\u003eIN1\u003c\/b\u003e and \u003cb\u003eIN2\u003c\/b\u003e. You can even PWM the inputs and the driver chip will do the right thing.\u003c\/p\u003e\n\u003cp\u003eYou can set the current limiting with an external resistor \u003cb\u003eRlim\u003c\/b\u003e. Adafruit solder in a 30K resistor by default for a ~2A current limit, however you can remove this resistor and\/or solder a resistor over it to change the resistance and change the limit.\u003c\/p\u003e\n\u003cp\u003eEach order comes with one fully assembled and tested motor driver breakout, two 2-pin terminal blocks and a small strip of header. Some light soldering is required to attach the header and terminal blocks but its a simple task that can be done with basic soldering equipment.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-drv8871-brushed-dc-motor-driver-breakout\/\" target=\"_blank\"\u003eCheck out the tutorial for wiring diagrams, CAD files, example code and more!\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-drv8871-brushed-dc-motor-driver-breakout\/download\" target=\"_blank\"\u003eEagleCAD and Fritzing files available in the tutorial\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 24.4mm x 20.4mm x 9.7mm \/ 1.0\" x 0.8\" x 0.4\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 2.2g \/ 0.1oz\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/product-files\/3190\/drv8871.pdf\" target=\"_blank\"\u003eDRV8871 Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":24714974983,"sku":"ADA3190","price":6.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3190-00_1.jpg?v=1663341270"},{"product_id":"picon-zero-intelligent-robotics-controller-for-raspberry-pi","title":"Picon Zero - Intelligent Robotics Controller for Raspberry Pi","description":"\u003cp\u003ePicon Zero is an Intelligent robotics controller for your Raspberry Pi based mobile robot. A built-in processor handles all the direct communication with your input and output devices, leaving you to worry about the overall control with your Raspberry Pi program.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports all models of Raspberry Pi with 40 pin Connector: Zero, Model A+\/B+ and Pi 2 or 3 Model B  **\u003c\/li\u003e\n\u003cli\u003eProgramming is fully supported with an extensive Python library (ScratchGPIO also \u003ca href=\"http:\/\/simplesi.net\/piconzero\/\" target=\"_blank\" title=\"ScratchGPIO for PiconZero\" rel=\"noopener noreferrer\"\u003eavailable here\u003c\/a\u003e!)\u003c\/li\u003e\n\u003cli\u003eIdeal for use with Raspberry Pi Zero\u003c\/li\u003e\n\u003cli\u003eNow shipping version 1.3 with Revision 10 firmware (improved slow speed response)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eI2C interface, leaving all GPIO pins free for your own use*\u003c\/li\u003e\n\u003cli\u003e2 full H-Bridge motor drivers with full forward\/reverse and speed control. Up to 1.5A continuous per channel (2A peak)\u003c\/li\u003e\n\u003cli\u003e6 general purpose output channels (5V) that can be set as: Digital, PWM, Servo, WS2812( aka \"Smart RGB\" LEDs)\u003c\/li\u003e\n\u003cli\u003e4 general purpose inputs (5V) that can be Digital, Analog, DS18B20 (digital temperature sensor)\u003c\/li\u003e\n\u003cli\u003eAll inputs and outputs use 3-pin GVS connectors (Ground, Volts, Signal) - allowing 3-pin sensors, servos, etc. to plug straight in\u003c\/li\u003e\n\u003cli\u003eDedicated socket for HC-SR04 ultrasonic sensor. Plug it straight in, or use jumper wires to mount it further away\u003c\/li\u003e\n\u003cli\u003e5 GPIO signals, 5V, 3V and Ground brought out to a header\u003c\/li\u003e\n\u003cli\u003ePower for outputs can be from Raspberry Pi's 5V or from an external USB input line\u003c\/li\u003e\n\u003cli\u003ePower for motors can be from internal\/external 5V, or from a separate power source (3V to 11V)\u003c\/li\u003e\n\u003cli\u003eBoth motor terminals have 2-pin screw connectors AND 2-pin male headers to allow maximum flexibility in connecting\u003c\/li\u003e\n\u003cli\u003ePython library module making it super-easy to use any of the features\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis controller board is supplied fully assembled. No soldering is required.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"http:\/\/4tronix.co.uk\/blog\/?p=1224\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ethe Blog entry\u003c\/a\u003e for more information, software and examples\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe Ultrasonic interface uses one GPIO pin, but can still be used as general purpose pin if the Ultrasonic sensor is not fitted.\u003c\/li\u003e\n\u003cli\u003e5 of the GPIO pins are available on a female header. To access the others you will need to attach directly to the GPIO pins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e** NB The Picon Zero\u003c\/strong\u003e also fits the 3B+ model of Pi, but you need an additional spacer to keep it away from the POE pins that the nice people at Raspberry Pi added. We now include these spacers with every Picon Zero.\u003c\/p\u003e","brand":"4tronix","offers":[{"title":"Default Title","offer_id":25350740935,"sku":"4TR-PICONZ","price":13.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/img_2073a_1024x1024_5ca50183-465d-4e00-b4d3-dab04cfbb05d.jpg?v=1596209867"},{"product_id":"pistep2-quad-stepper-motor-control-board-for-raspberry-pi","title":"PiStep2 Quad Stepper Motor Control Board for Raspberry Pi","description":"\u003cp\u003eThis neat little board plugs directly into the Raspberry Pi GPIO header and provides 2 or 4 connectors for small stepper motors\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFully Assembled - No Soldering Required\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi Zero Form Factor - works with all versions of Raspberry Pi with 40pin GPIO connector\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWorks with UniPolar (5-pin) stepper motors. Not with Bipolar (4-pin) motors.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eStepper motors and Raspberry Pi not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVarious Power Options:\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003ePowered from the Raspberry Pi 5V\u003c\/li\u003e\n\u003cli\u003eFrom the 2-pin Terminal (whatever voltage is required for the motors)\u003c\/li\u003e\n\u003cli\u003eMicro-USB - 5V only\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003ePinout is simple:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePhysical pins 11, 12, 13, 15 for Motor A (GPIO 17, 18, 27, 22)\u003c\/li\u003e\n\u003cli\u003ePhysical pins 16, 18, 22, 7 for Motor B (GPIO 23, 24, 25, 04)\u003c\/li\u003e\n\u003cli\u003ePhysical pins 33, 32, 31, 29 for Motor C (GPIO 13,12,6,5)\u003c\/li\u003e\n\u003cli\u003ePhysical Pins 38, 37, 36, 35 for Motor D (GPIO 20,26,16,19)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach pin has an associated white LED so you can see the stepper signals going through\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower Supply Alternatives\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eJumper VCC-VSTP \u003c\/strong\u003e(default). Power from the motors is taken from the Raspberry Pi 5V line\n\u003cul\u003e\n\u003cli\u003eMicro-USB into Raspberry Pi. 5V for the Pi and the stepper motors goes through a poly-fuse which can trip if 2 motors are used simultaneously\u003c\/li\u003e\n\u003cli\u003eMicro-USB into the PiStep board. 5V for both the Pi and the stepper motors is provided directly from the 5V USB input so no problems with 2 motors at once\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eJumper VSTP-VIN\u003c\/strong\u003e. Power for the motors is provided from the 2-pin screw terminal, so can be any voltage that the steppers can handle. Ensure you use the correct polarity! We recommend to keep it below 12V. You will find that the stepper motors can go up to 9V and will be able to step faster, the higher the voltage that is applied, but there will be some deterioration of the life of the stepper motor at a higher voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePython Programming\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePlease see the excellent \u003ca href=\"http:\/\/www.raspberrypi-spy.co.uk\/2012\/07\/stepper-motor-control-in-python\/\" target=\"_blank\"\u003eexample here for \u003c\/a\u003esome pointers. You will need to change the pin numbers as above and also change the speed so it steps at a visible rate. You may also want to remove the print statements to speed it up. The lines in Red below are changed from the original to operate Motor A.\u003c\/p\u003e\n\u003cp\u003e# Use BCM GPIO references\u003cbr\u003e# instead of physical pin numbers\u003cbr\u003eGPIO.setmode(GPIO.BCM)\u003c\/p\u003e\n\u003cp\u003e# Define GPIO signals to use\u003cbr\u003e# Pins 18,22,24,26\u003cbr\u003e# GPIO24,GPIO25,GPIO8,GPIO7\u003cbr\u003eStepPins = [17,18,27,22]\u003c\/p\u003e\n\u003cp\u003e# Set all pins as output\u003cbr\u003efor pin in StepPins:\u003cbr\u003e  print \"Setup pins\"\u003cbr\u003e  GPIO.setup(pin,GPIO.OUT)\u003cbr\u003e  GPIO.output(pin, False)\u003c\/p\u003e\n\u003cp\u003e# Define some settings\u003cbr\u003eStepCounter = 0\u003cbr\u003eWaitTime = 0.01\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eScratchGPIO Programming\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese pins are identical to those required by \u003ca href=\"http:\/\/cymplecy.wordpress.com\/scratchgpio\/\" target=\"_blank\"\u003eScratchGPIO\u003c\/a\u003e and therefore can easily be driven using simple Scratch commands:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_07.gif\" data-mce-fragment=\"1\" data-mce-src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_07.gif\"\u003e Set motor type for Scratch to be Stepper motor\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_05.gif\" data-mce-fragment=\"1\" data-mce-src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_05.gif\"\u003e \u003c\/span\u003eSet the position of the stepper motor A\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_06.gif\" data-mce-fragment=\"1\" data-mce-src=\"http:\/\/www.4tronix.co.uk\/rpi\/pistep_06.gif\"\u003e \u003c\/span\u003eSet the speed of the stepper motor A\u003c\/p\u003e","brand":"4tronix","offers":[{"title":"Default Title","offer_id":25353548295,"sku":"4TR-PISTEP2Q","price":10.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/IMG_0178.JPG?v=1469007098"},{"product_id":"micro-gearmotor-enclosure","title":"Micro Gearmotor - Enclosure","description":"\u003cp\u003eThese enclosures allow you to mount your micro gearmotor to other Actobotics products easily. Once your gearmotor is inserted, you can take advantage of the 0.77” hole pattern. These enclosures have a length of 1.14”, a width of 1”, and a thickness of 0.50”.\u003c\/p\u003e\n\u003cp\u003eActobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or finished projects a reality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength - 1.14”\u003c\/li\u003e\n\u003cli\u003eWidth - 1”\u003c\/li\u003e\n\u003cli\u003eThickness - 0.50”\u003c\/li\u003e\n\u003cli\u003eHub Pattern - 0.77\"\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/cdn.sparkfun.com\/datasheets\/Robotics\/Actobotics\/micro_gearmotor_drawing.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDimensional Drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":27056160839,"sku":"ROB-12105","price":1.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/12105-01.jpg?v=1470744103"},{"product_id":"qtr-1rc-reflectance-sensor-2-pack","title":"QTR-1RC Reflectance Sensor (2-Pack)","description":"\u003cp\u003eThe QTR-1RC reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5\" x 0.3\" module that can be mounted almost anywhere and is great for edge detection and line following. \u003cstrong\u003eThe output is designed to be measured by a digital I\/O line.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis sensor is sold in packs of \u003cstrong\u003etwo\u003c\/strong\u003e\u003cspan\u003e units.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The QTR-1RC reflectance sensor requires a digital I\/O line to take readings. The similar \u003ca href=\"\/en-eu\/products\/qtr-1a-reflectance-sensor-2-pack\" target=\"_blank\"\u003eQTR-1A reflectance sensor\u003c\/a\u003e is available with an analog output.\u003c\/p\u003e\n\u003cp\u003eThe Pololu QTR-1RC reflectance sensor carries a single infrared (IR) LED and phototransistor pair. To use the sensor, you must first charge the output node by applying a voltage to the OUT pin. You can then read the reflectance by withdrawing the externally supplied voltage and timing how long it takes the output voltage to decay due to the integrated phototransistor. Shorter decay time is an indication of greater reflection. This measurement approach has several advantages, especially when multiple units are used:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNo analog-to-digital converter (ADC) is required\u003c\/li\u003e\n\u003cli\u003eImproved sensitivity over voltage-divider analog output\u003c\/li\u003e\n\u003cli\u003eParallel reading of multiple sensors is possible with most microcontrollers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe LED current-limiting resistor is set to deliver approximately 17 mA to the LED when VIN is 5 V. The current requirement can be met by some microcontroller I\/O lines, allowing the sensor to be powered up and down through an I\/O line to conserve power.\u003c\/p\u003e\n\u003cp\u003eThis sensor was designed to be used with the board parallel to the surface being sensed. Because of its small size, multiple units can easily be arranged to fit various applications such as line sensing and proximity\/edge detection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 0.3\" x 0.5\" x 0.1\" (without optional header pins installed)\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 5.0 V\u003c\/li\u003e\n\u003cli\u003eSupply current: 17 mA\u003c\/li\u003e\n\u003cli\u003eOutput format: digital I\/O-compatible signal that can be read as a timed high pulse\u003c\/li\u003e\n\u003cli\u003eOptimal sensing distance: 0.125\" (3 mm)\u003c\/li\u003e\n\u003cli\u003eMaximum recommended sensing distance: 0.375\" (9.5 mm)\u003c\/li\u003e\n\u003cli\u003eWeight without header pins: 0.008 oz (0.2 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInterfacing the QTR-1RC output to a digital I\/O line\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eLike the Parallax QTI, this sensor requires a digital I\/O line capable of driving the output line high and then measuring the time for the output voltage to decay. The typical sequence for reading a sensor is:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eSet the I\/O line to an output and drive it high.\u003c\/li\u003e\n\u003cli\u003eAllow at least 10 μs for the sensor output to rise.\u003c\/li\u003e\n\u003cli\u003eMake the I\/O line an input (high impedance).\u003c\/li\u003e\n\u003cli\u003eMeasure the time for the voltage to decay by waiting for the I\/O line to go low.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThese steps can typically be executed in parallel on multiple I\/O lines.\u003c\/p\u003e\n\u003cp\u003eWith a strong reflectance, the decay time can be as low as several dozen microseconds; with no reflectance, the decay time can be up to a few milliseconds. The exact time of the decay depends on your microcontroller’s I\/O line characteristics. Meaningful results can be available within 1 ms in typical cases (i.e. when not trying to measure subtle differences in low-reflectance scenarios), allowing up to 1 kHz sampling.\u003c\/p\u003e\n\u003cp\u003eFor more resources check out the \u003ca href=\"https:\/\/www.pololu.com\/docs\/0J20\" target=\"_blank\"\u003ePololu AVR library\u003c\/a\u003e and \u003ca href=\"https:\/\/www.pololu.com\/docs\/0J19\"\u003eArduino library\u003c\/a\u003e for these sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded components\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module has a single mounting hole intended for a #2 screw (not included); if this mounting hole is not needed, this portion of the PCB can be ground off to make the unit even smaller. Each pack of two reflectance sensors includes sets of straight male header strips and right-angle male header strips, which allow you to mount them in the orientation of your choice (note: the header pins might ship as 1×6 strips that you can break into two 1×3 pieces). You can also solder wires, such as ribbon cable, directly to the pads for the most compact installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow it works in detail\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith only four components (or five, if you count the coupled IR LED and phototransistor separately), the operation of this sensor is relatively basic. The emitter side is just an IR LED with an appropriate current-limiting resistor. The light from the emitter leaves the sensor, reflects off a nearby surface, and returns to the detector.\u003c\/p\u003e\n\u003cp\u003eThe detector side is a resistor-capacitor (RC) circuit, where the resistance comes from the phototransistor and is a measure of the incident infrared light, and the decay time is proportional to the resistance. The first step of the sensor-reading process—driving the sensor output high—discharges the integrated 10 nF capacitor and puts both sides at the same voltage (VIN). Alternatively, you can think of this as “charging the output node”, and it is functionally equivalent to charging a capacitor with one side connected to ground. Once you are no longer supplying an external voltage to the output pin, the capacitor can slowly charge through the phototransistor, with the rate of charging being a function of the phototransistor’s resistance (which is in turn a function of the incident IR). As the capacitor charges, the voltage on the output side drops, eventually reaching zero when the capacitor is fully charged. Alternatively, you can think of this as “discharging the output node”, and it is functionally equivalent to discharging a capacitor with one side connected to ground.\u003c\/p\u003e\n\u003cp\u003eThe 220 Ω resistor on the OUT line serves to limit the current flow, making it possible for a microcontroller output to safely charge the output node prior to each reading. It has very little effect on the sensor output.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":32140162762,"sku":"POL-2459","price":4.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J4716.1200.jpg?v=1476282492"},{"product_id":"qtr-1a-reflectance-sensor-2-pack","title":"QTR-1A Reflectance Sensor (2-Pack)","description":"\u003cp\u003eThe QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair in an inexpensive, tiny 0.5\" x 0.3\" module that can be mounted almost anywhere and is great for edge detection and line following. \u003cstrong\u003eThe reflectance measurement is output as an analog voltage.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis sensor is sold in packs of \u003cstrong\u003etwo\u003c\/strong\u003e units.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The QTR-1A reflectance sensor requires an analog input to take readings. The similar \u003ca href=\"\/en-eu\/products\/qtr-1rc-reflectance-sensor-2-pack\" target=\"_blank\"\u003eQTR-1RC reflectance sensor\u003c\/a\u003e is available with a digital I\/O-compatible output.\u003c\/p\u003e\n\u003cp\u003eThe Pololu QTR-1A reflectance sensor carries a single infrared LED and phototransistor pair. The phototransistor is connected to a pull-up resistor to form a voltage divider that produces an analog voltage output between 0 V and VIN (which is typically 5 V) as a function of the reflected IR. Lower output voltage is an indication of greater reflection.\u003c\/p\u003e\n\u003cp\u003eThe LED current-limiting resistor is set to deliver approximately 17 mA to the LED when VIN is 5 V. The current requirement can be met by some microcontroller I\/O lines, allowing the sensor to be powered up and down through an I\/O line to conserve power.\u003c\/p\u003e\n\u003cp\u003eThis sensor was designed to be used with the board parallel to the surface being sensed. Because of its small size, multiple units can easily be arranged to fit various applications such as line sensing and proximity\/edge detection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 0.3\" x 0.5\" x 0.1\" (without optional header pins installed)\u003c\/li\u003e\n\u003cli\u003eOperating voltage: 5.0 V\u003c\/li\u003e\n\u003cli\u003eSupply current: 17 mA\u003c\/li\u003e\n\u003cli\u003eOutput format: analog voltage\u003c\/li\u003e\n\u003cli\u003eOutput voltage range: 0  to supplied voltage\u003c\/li\u003e\n\u003cli\u003eOptimal sensing distance: 0.125\" (3 mm)\u003c\/li\u003e\n\u003cli\u003eMaximum recommended sensing distance: 0.25\" (6 mm)\u003c\/li\u003e\n\u003cli\u003eWeight without header pins: 0.008 oz (0.2 g)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eInterfacing with the QTR-1A Output\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThere are several ways you can interface with the QTR-1A output:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUse a microcontroller’s analog-to-digital converter (ADC) to measure the voltage.\u003c\/li\u003e\n\u003cli\u003eUse a comparator with an adjustable threshold to convert the analog voltage into a digital (i.e. black\/white) signal that can be read by the digital I\/O line of a microcontroller.\u003c\/li\u003e\n\u003cli\u003eConnect the output directly to the digital I\/O line of a microcontroller and rely upon its internal comparator.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis last method will work if you are able to get high reflectance from your white surface as depicted in the left image, but will probably fail if you have a lower-reflectance signal profile like the one on the right\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J638.1200_medium.png?v=1476282898\" style=\"float: none;\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J640.1200_medium.png?v=1476282952\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eFor more resources check out the \u003ca href=\"https:\/\/www.pololu.com\/docs\/0J20\"\u003ePololu AVR library\u003c\/a\u003e and \u003ca href=\"https:\/\/www.pololu.com\/docs\/0J19\"\u003eArduino library\u003c\/a\u003e for these sensors.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis module has a single mounting hole intended for a #2 screw (not included); if this mounting hole is not needed, this portion of the PCB can be ground off to make the unit even smaller. Each pack of two reflectance sensors includes sets of straight male header strips and right-angle male header strips, which allow you to mount them in the orientation of your choice (note: the header pins might ship as 1×6 strips that you can break into two 1×3 pieces). You can also solder wires, such as ribbon cable, directly to the pads for the most compact installation.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":32140869258,"sku":"POL-2458","price":4.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J4714.1200.jpg?v=1476283100"},{"product_id":"basic-sumo-blade-for-zumo-chassis","title":"Basic Sumo Blade for Zumo Chassis","description":"\u003cp\u003eThis 0.036″-thick stainless steel plate can be mounted to the front of the \u003ca href=\"\/en-eu\/products\/zumo-chassis-kit-no-motors\" target=\"_blank\"\u003eZumo chassis\u003c\/a\u003e to create a slanted, bulldozer-like blade for pushing around objects, such as other mini-sumo robots.\u003c\/p\u003e\n\u003cp\u003eThis basic sumo blade (sometimes also called a “scoop”) is intended for use with the \u003ca href=\"\/en-eu\/products\/zumo-chassis-kit-no-motors\" target=\"_blank\"\u003eZumo chassis\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eIt is made of 0.036″-thick, laser-cut stainless steel, and it ships flat as shown in the product picture. The two tabs must be bent to an angle of approximately 70° before it can be mounted to the front of the Zumo chassis. We recommend using a pair of long-nose pliers to bend the tabs:\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J3953.1200_large.jpg?v=1476283364\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarning: Do not try to bend the tabs after mounting the blade to the Zumo chassis as this could crack the chassis’ acrylic mounting plate or the mounting tabs themselves.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eThe chassis mounts to the two protruding front mounting holes of the Zumo chassis using the #2-56 screws included with the chassis kit.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"Default Title","offer_id":32141229706,"sku":"POL-1410","price":2.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J3954.1200.jpg?v=1628854817"},{"product_id":"moon-buggy-wheels-pair","title":"Moon Buggy Wheels - Pair","description":"\u003cp\u003eThis is a super-grippy, bright and friendly set of wheels designed for our \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\"\u003emicro metal gearmotors\u003c\/a\u003e.\u003c\/p\u003e\n\u003cul style=\"line-height: 1.2;\"\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan style=\"line-height: 1.2;\"\u003e\u003cspan\u003eRubber tire measuring 47mm in diameter with a depth of 20mm.\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eThese wheels are sold in \u003cstrong style=\"line-height: 1.2;\"\u003epairs\u003c\/strong\u003e\u003cspan style=\"line-height: 1.2;\"\u003e.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eGearmotors can be mounted onto either side of the hub.\u003c\/li\u003e\n\u003cli\u003eThe motors are \u003cstrong\u003enot\u003c\/strong\u003e included.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"line-height: 16px;\"\u003eWe use these wheels in our \u003ca href=\"\/en-eu\/products\/trilobot\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTrilobot\u003c\/a\u003e kit, and now you can have them on your own robot. Ideal for Pi Wars when used with a bit of \u003ca href=\"\/en-eu\/products\/explorer-hat\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eExplorer HAT\u003c\/a\u003e action!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":32379557578,"sku":"COM1400","price":3.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Wheel_pair_ca44bfa1-318f-4064-8769-823917b86963.JPG?v=1539263175"},{"product_id":"sparkfun-ardumoto-shield-kit","title":"SparkFun Ardumoto Shield Kit","description":"\u003cp\u003eRobots are fun, and Arduinos are easy. So wouldn’t it be nice if there were a kit that included everything you need to get your Arduino device set up to control a simple two-motor-circuit buddy?\u003c\/p\u003e\n\u003cp\u003eThe SparkFun Ardumoto Shield Kit is perfect for any robot enthusiast and includes an Ardumoto Shield, as well as pairs of tires, motors, connectors and wires. And, of course, it’s all stuffed in a classic SparkFun red box (which may come in handy as a robot chassis).\u003c\/p\u003e\n\u003cp\u003eThe Ardumoto Shield is an easy-to-use dual-motor controller for Arduino. Combined with an Arduino, the Ardumoto makes a fantastic controller platform for RC vehicles or even small autonomous robots. At the heart of the Ardumoto — the big, black chip right in the middle — is an L298, one of our favorite dual-channel motor drivers around, capable of driving up to 2A per channel. The board takes its power from the same Vin line as the Arduino board and includes blue and yellow LEDs to indicate active direction. All driver lines are diode protected from back EMF.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/ardumoto-kit-hookup-guide\" class=\"btn btn-default\"\u003eGet started with the SparkFun Ardumoto kit guide\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eKit Includes:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x \u003ca href=\"\/en-eu\/products\/sparkfun-ardumoto-motor-driver-shield\" target=\"_blank\"\u003eSparkFun Ardumoto Shield\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e2x Hobby Gearmotor – 65 RPM\u003c\/li\u003e\n\u003cli\u003e2x Wheel – 65mm (Rubber Tire)\u003c\/li\u003e\n\u003cli\u003e1x Arduino Stackable Header Kit\u003c\/li\u003e\n\u003cli\u003e3x Screw Terminals 3.5mm Pitch (2-Pin)\u003c\/li\u003e\n\u003cli\u003e1x 9V to Barrel Jack Adapter\u003c\/li\u003e\n\u003cli\u003e2x Black Wire – 5\" Length (22AWG Solid Core)\u003c\/li\u003e\n\u003cli\u003e2x Red Wire – 5\" Length (22AWG Solid Core)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/SparkFun_Ardumoto_v20.pdf?844645855047747013\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Robotics\/SparkFun_Ardumoto_v20.zip\" target=\"_blank\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/ardumoto-kit-hookup-guide\" target=\"_blank\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/L298_H_Bridge.pdf?844645855047747013\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e (L298)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/Ardumoto-Motor_Driver_Shield\/tree\/revision\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":41073604298,"sku":"KIT-14180","price":27.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/14180_Kit.jpg?v=1539264431"},{"product_id":"building-your-own-robots","title":"Building Your Own Robots: Design and Build Your First Robot!","description":"\u003cp\u003eThere's no better way for kids to learn about the world around them than to test how things work. \u003ci\u003eBuilding Your Own Robots\u003c\/i\u003e presents fun robotics projects that children aged 7 – 11 can complete with common household items and old toys.\u003c\/p\u003e\n\u003cp\u003eThe projects introduce core robotics concepts while keeping tasks simple and easy to follow, and the vivid, full-color graphics keep your kid's eyes on the page as they work through the projects.\u003c\/p\u003e\n\u003cp\u003eBrought to you by the trusted For Dummies brand, this kid-focused book offers your child a fun and easy way to start learning big topics! They'll gain confidence as they design and build a self-propelled vehicle, hack an old remote control car to create a motorized robot, and use simple commands to build and program a virtual robot—all while working on their own and enjoying a sense of accomplishment!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOffers a kid-friendly design that is heavy on eye-popping graphics\u003c\/li\u003e\n\u003cli\u003eFocuses on basic projects that set your child on the road to further exploration\u003c\/li\u003e\n\u003cli\u003eBoasts a small, full-color, accessible package that instills confidence in the reader\u003c\/li\u003e\n\u003cli\u003eIntroduces basic robotics concepts to kids in a language they can understand\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf your youngster loves to tinker, they'll have a whole lot of fun while developing their creative play with the help of \u003ci\u003eBuilding Your Own Robots\u003c\/i\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGordon McComb\u003c\/strong\u003e has written over 65 books and several thousand magazine and newspaper articles. His specialty is teaching young minds about new technology.\u003c\/p\u003e","brand":"Wiley","offers":[{"title":"Default Title","offer_id":41263876106,"sku":"BK0600","price":8.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Building_Your_Own_Robots.jpg?v=1539263120"},{"product_id":"servo-lite-board-for-micro-bit","title":"Servo:Lite board for micro:bit","description":"\u003cp\u003eThis Servo:Lite board for the micro:bit can form the control hub for your robotics project, control up to three servos \u0026amp; has 5 x RGB ZIP LEDs on board.\u003c\/p\u003e\n\u003cp\u003eThe Servo:Lite board for the micro:bit is a simple board that allows you to easily connect and control low power servo motors (servo's must be capable of operating at 3.3V) using the micro:bit. It is connected to the micro:bit using five bolts. Connect two servos in standard configuration and it can drive up to 3 servos if the addressable ‘ZIP’ LEDs aren’t needed.\u003c\/p\u003e\n\u003cp\u003eIt is powered by 3 AAA batteries and also supplies power to the micro:bit, the board features an on\/off switch so when it's not in use the batteries won't drain.\u003c\/p\u003e\n\u003cp\u003eThe board also features 5 x RGB individually addressable ZIP LEDs (NeoPixel-compatible) and additional external ZIP LEDs can be connected to the board as required.\u003c\/p\u003e\n\u003cp\u003eKitronik have produced a range of tutorials and guides that can be found in the resources section below. They have guides detailing; how to control a third servo and how to write code for the on-board ZIP LEDs.\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnect two servos in standard configuration and can drive up to 3 servos if the addressable ‘ZIP’ LEDs aren’t needed\u003c\/li\u003e\n\u003cli\u003ePowered by 3 AAA batteries that also supply power to the \u003ca href=\"\/en-eu\/products\/microbit\" target=\"_blank\"\u003emicro:bit\u003c\/a\u003e (not supplied)\u003c\/li\u003e\n\u003cli\u003eOn\/off switch\u003c\/li\u003e\n\u003cli\u003e5 x RGB addressable ZIP LEDs (NeoPixel-compatible). Additional external ZIP LEDs can be connected to the board.\u003c\/li\u003e\n\u003cli\u003eCompatible with micro:bit v1 and v2!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eContents:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x Servo:Lite board with battery holder pre-fitted\u003c\/li\u003e\n\u003cli\u003e5 x M3x8 counter-sunk Pozi Steel screws\u003c\/li\u003e\n\u003cli\u003e1 x Perspex spacer\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDimensions:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLength: 55mm\u003c\/li\u003e\n\u003cli\u003eHeight: 52mm\u003c\/li\u003e\n\u003cli\u003eHeight: 17mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRequires:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3 x AAA batteries\u003c\/li\u003e\n\u003cli\u003e1 x \u003ca href=\"\/en-eu\/products\/microbit\" target=\"_blank\"\u003emicro:bit\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eServos\u003c\/li\u003e\n\u003cli\u003eScrewdriver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eResources:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.kitronik.co.uk\/blog\/kitronik-custom-pxt-editor-servo-blocks\/\" target=\"_blank\"\u003eGuide for Kitronik custom PXT editor servo blocks\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.kitronik.co.uk\/blog\/3-servos-with-the-servolite-board\/\" target=\"_blank\"\u003eGuide for controlling 3 servos with the Servo:Lite board\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.kitronik.co.uk\/blog\/using-kitronik-zip-leds-bbc-microbit\/\" target=\"_blank\"\u003eGuide for using Kitronik ZIP LEDs with the micro:bit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"WS2812B Datasheet\" href=\"https:\/\/www.kitronik.co.uk\/pdf\/WS2812B-LED-datasheet.pdf\" target=\"_blank\"\u003eWS2812B datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca title=\"servo:lite Datasheet\" href=\"https:\/\/www.kitronik.co.uk\/pdf\/5623-servo-lite-datasheet.pdf\" target=\"_blank\"\u003eServo:Lite board datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":43345153226,"sku":"KIT-5623","price":9.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/5623_additional_servo_lite_board_move_mini_bbc_microbit_top.jpg?v=1539263930"},{"product_id":"4-soldering-light-chaser-beam-robot-kit","title":"4-Soldering Light Chaser Beam Robot Kit","description":"\u003cp\u003eMeet Mr. NEON, the light chaser beam robot that can help kids or novice electronic enthusiasts learn about soldering and simple circuits.\u003c\/p\u003e\n\u003cp\u003eMr NEON is designed to look like a three-leg monster whose eyes or tentacles glow in accordance with ambient light level. The stronger the light is, the faster it moves.\u003c\/p\u003e\n\u003cp\u003eThere is no programming involved and all soldering is intuitive and rookie-friendly. So it is perfect for novice electronic enthusiast. Includes stickers so you can customise Mr NEON yourself!\u003c\/p\u003e\n\u003ch2\u003eContents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLight Chaser PCB Board\u003c\/li\u003e\n\u003cli\u003eBattery (CR2032)\u003c\/li\u003e\n\u003cli\u003eBattery Clip\u003c\/li\u003e\n\u003cli\u003eOn\/Off Switch\u003c\/li\u003e\n\u003cli\u003eTransistor (x2)\u003c\/li\u003e\n\u003cli\u003eVibration Motor (x2)\u003c\/li\u003e\n\u003cli\u003ePhotodiode (x2)\u003c\/li\u003e\n\u003cli\u003e20K Ohm Resistor (x4)\u003c\/li\u003e\n\u003cli\u003ePlastic paper\u003c\/li\u003e\n\u003cli\u003ePlastic tubing\u003c\/li\u003e\n\u003cli\u003eAdhesive sticker\u003c\/li\u003e\n\u003cli\u003eBase sticker\u003c\/li\u003e\n\u003cli\u003eFace sticker\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eErrata\u003c\/h2\u003e\n\u003cp\u003eThe circuit diagram on the first page of the current instruction booklet is incorrect. DFRobot would like to issue a sincere apology for this error and will ensure that it is fixed in the next publication of these instructions. The corrected diagram is below. \u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/TOY0060_EN_large.png?v=1501679289\" alt=\"\"\u003e\u003c\/p\u003e","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":46128298826,"sku":"TOY0060","price":11.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/DSC6273-900x600.jpg?v=1539264485"},{"product_id":"mini-3-layer-round-robot-chassis-kit-2wd-with-dc-motors","title":"Mini 3-Layer Round Robot Chassis Kit - 2WD with DC Motors","description":"\u003cp\u003eThis kit gives you everything you need to build the shell of a 2-wheel-drive Mobile Platform Robot!\u003c\/p\u003e\n\u003cp\u003eYou get the metal plates that make up the chassis, two DC drive motors with matching wheels, and a caster ball for balance. You'll fill in the rest with a power supply, microcontroller board, and motor controller. The differential drive (two separately driven wheels) allows for a near zero turning radius while the high-strength aluminum alloy body plus high-quality high-speed motors make it suitable for flat indoor surfaces. It's adorably small but has an extra layer for more storage and comes in fashionable Adafruit black!\u003c\/p\u003e\n\u003cp\u003eWe of course have suggestions to run the motors like the \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/adafruit-tb6612-1-2a-dc-stepper-motor-driver-breakout-board\" target=\"_blank\"\u003eTB6612 breakout\u003c\/a\u003e, \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/dc-motor-stepper-featherwing-add-on-for-all-feather-boards\" target=\"_blank\"\u003eMotor FeatherWing\u003c\/a\u003e, \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/adafruit-motor-stepper-servo-shield-for-arduino-v2-kit\" target=\"_blank\"\u003eMotor Shield for Arduino\u003c\/a\u003e, or \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/adafruit-dc-stepper-motor-hat-for-raspberry-pi-mini-kit\" target=\"_blank\"\u003eMotor HAT for Raspberry Pi\u003c\/a\u003e. Basically anything that can do two bi-directional brushed DC motors at ~5V and 1.5 Amp peak. To steer the wheels, you'll need a microcontroller to toggle the motor driver like the \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/adafruit-feather-32u4-bluefruit-le\" target=\"_blank\"\u003eFeather 32u4 Bluefruit LE\u003c\/a\u003e, which was used in AdaBox002, and to power the robot \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/products\/4-x-aa-battery-holder-with-on-off-switch\" target=\"_blank\"\u003eAdafruit used a 4 x AA battery holder\u003c\/a\u003e (not included) which fits nicely between layer #2 and #3. But this is all up to you and your imagination!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e \u003ca href=\"\/en-eu\/products\/lithium-ion-battery-pack\"\u003eLiPoly Battery\u003c\/a\u003e, \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/collections\/adafruit-feather-feather-wings-and-accessories\" target=\"_blank\"\u003eFeather board, FeatherWings\u003c\/a\u003e, and Feather accessories \u003cstrong\u003eare not included!\u003c\/strong\u003e This is just the body of the mobile platform robot.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2x Drive Motors (drive with 3-6VDC, 200-400 mA run, 1.5A hard stall)\u003c\/li\u003e\n\u003cli\u003e2x Wheels\u003c\/li\u003e\n\u003cli\u003e1x Plastic Caster Ball\u003c\/li\u003e\n\u003cli\u003eAnodized aluminum frames and all mounting hardware for assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAssembled Dimensions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength of Metal Plates: 100mm \/ 3.9\"\u003c\/li\u003e\n\u003cli\u003eWidth of Car (wheels assembled): 109mm \/ 4.3\"\u003c\/li\u003e\n\u003cli\u003eHeight (wheels assembled, \u003cb\u003e3\u003c\/b\u003e plates): 66mm \/ 2.6\"\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":47037345482,"sku":"ADA3244","price":20.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3244-01.jpg?v=1539264523"},{"product_id":"autogami","title":"Autogami","description":"\u003cp\u003eAutogami is a little car that runs on sun! Just place it on the windowsill or in the sun to recharge the battery!\u003c\/p\u003e\n\u003cp\u003eA days charge allows the car to run 25 minutes, but kids can also play with it directly under the sunlight!\u003c\/p\u003e\n\u003cp\u003eMax speed : 2 Km\/h\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eComposition\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eIn each sleeve you will find a pre-cut sheet of paperboard, wheel fixations and a «Powerbase».\u003c\/p\u003e\n\u003cp\u003eThe Powerbase is composed of a polycrystal solar panel, a rechargeable battery, an electric motor and a system of gears.\u003c\/p\u003e\n\u003ch2\u003eLitogami Sustainability commitments\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eIn our day and age, it is hard to imagine designing an object without first working out it’s ecological and social impact. Through the Casagami project we wanted to state our commitment to a solidary and responsible society. Our goal is to raise awareness concerning these issues of sustainability, especially in children but also in their parents.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur products are made in France. They are produced in Annonay near Agen and in the suburbs of Paris.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eLitogami employs people with special needs for conditioning and expedition of our products. We work with institutions for handicapped persons near Agen and Paris.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur products are shipped in a flat format (an A5 sized cardboard envelope) for a reduced carbon footprint.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThey run on solar energy and are made with recycled or PEFC paper.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eOur inks are green (certified non toxic and responsibly managed waste).\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eWe are commited to helping associations that work with children, in France and internationally by reduced prices and even donations of our products.\u003c\/em\u003e\u003c\/p\u003e","brand":"Litogami","offers":[{"title":"4L Blue","offer_id":47492405450,"sku":"020012 4L","price":10.0,"currency_code":"GBP","in_stock":false},{"title":"Fire Truck","offer_id":47492405514,"sku":"020012 TR","price":10.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/blu1.800.png?v=1547042203"},{"product_id":"pololu-track-set-1","title":"Pololu Track Set","description":"\u003cp\u003eThis set contains components for adding a tracked drive system to a small robot or vehicle.\u003c\/p\u003e\n\u003cp\u003eThis track set includes a pair of silicone tracks, two coloured drive sprockets measuring 35 mm (1.4″) in diameter, and two matching idler sprockets along with mounting hardware.\u003c\/p\u003e\n\u003cp\u003eTo work properly with the track, the drive and idler sprockets should be set up approximately \u003cstrong\u003e48 mm (1.9″) apart for the 22T and 85 mm (3.35″) apart for the 30T\u003c\/strong\u003e. The drive sprockets are designed to work with 3mm D-shafts, such as those on our \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\"\u003emicro metal gearmotors\u003c\/a\u003e. These are the same tracks and sprockets used on the \u003ca href=\"\/en-eu\/products\/zumo-chassis-kit-no-motors\" target=\"_blank\"\u003eZumo chassis\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eKit consists of:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo silicone tracks\u003c\/li\u003e\n\u003cli\u003eTwo ABS drive sprockets\u003c\/li\u003e\n\u003cli\u003eTwo ABS idler sprockets\u003c\/li\u003e\n\u003cli\u003eTwo M3 shoulder bolts with a 5mm threaded portion\u003c\/li\u003e\n\u003cli\u003eTwo M3 shoulder bolts with a 12mm threaded portion\u003c\/li\u003e\n\u003cli\u003eTwo washers and M3 nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe flexible one-piece silicone tracks are available in two lengths, with either 22 teeth or 30 teeth that are designed to mesh with the drive and idler sprockets. The 22T set, with an overall length under 90 mm, is short enough to be used as the drive system for a mini-sumo robot (for example, the \u003ca href=\"\/en-eu\/products\/zumo-chassis-kit-no-motors\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eZumo chassis\u003c\/a\u003e).\u003c\/p\u003e\n\u003cp\u003eThe drive sprockets are designed to press-fit securely on the output shafts of our \u003ca href=\"\/en-eu\/products\/micro-metal-gearmotor-extended-back-shaft\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emicro metal gearmotors\u003c\/a\u003e. On the Zumo robots, these gearmotors are intended to be mounted \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J6692.1200.png?14134903788622126424\" target=\"_blank\"\u003ewith the raised lip on one side of the drive sprocket facing away from the motor\u003c\/a\u003e, but if you are not using a Zumo chassis, you can insert the drive sprockets onto the 3mm D-shafts in either orientation.\u003c\/p\u003e\n\u003cp\u003eAlthough the drive sprockets are similar to the hubs used in the \u003ca href=\"\/en-eu\/products\/pololu-wheel-42x19mm-pair\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePololu 42×19mm wheels\u003c\/a\u003e, they are not as wide, so they do not physically support the whole tire.\u003c\/p\u003e\n\u003cp\u003eA pair of idler sprockets is also included in the set; these are very similar to the drive sprockets, with the main difference being that they are designed to spin freely instead of attaching to a motor shaft. They can be mounted with the provided shoulder bolts as shown in the diagram below. (The blue component labeled “ROBOT CHASSIS” represents a bracket or piece of a robot chassis that the sprocket is being mounted to, and is not a part included in the set.)\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J7941.1200_large.png?v=1509378124\"\u003e\u003c\/p\u003e\n\u003cp\u003eIncluded are two pairs of shoulder bolts, one with a 5mm threaded portion and one a 12mm threaded portion, so you can pick the pair that is appropriate for your application. You will only use two of the four included shoulder bolts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA dimension diagram containing the sprockets, tracks, and bolts is available \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/pololu-track-set-dimensions.pdf?14134903788622126424\" target=\"_blank\"\u003ehere\u003c\/a\u003e (618k pdf). Several key dimensions are highlighted below:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSprocket diameter: 35 mm (1.38″)\u003c\/li\u003e\n\u003cli\u003eDiameter with track: approx. 39 mm (1.54″)\u003c\/li\u003e\n\u003cli\u003eTrack width: 14.6 mm (0.57″)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe threaded portion of the shoulder bolts can be cut to the desired length.\u003c\/p\u003e\n\u003cp\u003eThe ideal spacing between the centers of the two sprockets is about 48 mm for the 22T tracks and 85 mm for the 30T tracks. Because the tracks are elastic, they will maintain tension even if you do not precisely match this distance. However, if the spacing is too short, they will be loose and more likely to slip off; if the spacing is too long, additional strain will be placed on the sprocket shafts, and the motor might not be able to turn as well.\u003c\/p\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J7923.1200_large.jpg?v=1509378238\"\u003e\u003c\/p\u003e\n\u003cp\u003eThese track sets are similar to the original 22T and 30T track sets, except they replace the old sprockets with newer, spoked versions. This spoked design removes material from several areas near the central hub of the sprocket, which has the advantage of allowing the drive sprocket to be more easily removed from the D-shaft of the motor while still remaining firmly fixed after being press-fit into place.\u003c\/p\u003e","brand":"Pololu","offers":[{"title":"22T - Black","offer_id":933150982154,"sku":"POL-3030","price":10.5,"currency_code":"GBP","in_stock":false},{"title":"22T - Red","offer_id":39351805378643,"sku":"POL-3031","price":10.5,"currency_code":"GBP","in_stock":false},{"title":"22T - White","offer_id":39351807705171,"sku":"POL-3032","price":10.5,"currency_code":"GBP","in_stock":false},{"title":"30T - Black","offer_id":933151014922,"sku":"POL-3033","price":12.25,"currency_code":"GBP","in_stock":false},{"title":"30T - Red","offer_id":39351808852051,"sku":"POL-3034","price":12.25,"currency_code":"GBP","in_stock":false},{"title":"30T - White","offer_id":39351809212499,"sku":"POL-3035","price":12.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J7930.1200.jpg?v=1621952675"},{"product_id":"pololu-dual-g2-high-power-motor-driver-for-raspberry-pi","title":"Pololu Dual G2 High-Power Motor Driver for Raspberry Pi","description":"\u003cp\u003eThis add-on board makes it easy to control two high-power DC motors with a Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003eIts twin discrete MOSFET H-bridges support a wide operating voltage range and are efficient enough to deliver a continuous current without a heat sink. The drivers offer basic current limiting functionality, and they accept ultrasonic PWM frequencies for quieter operation. The default pin mappings make it easy to get started, but they can be customized for more specialized applications.\u003c\/p\u003e\n\u003cp\u003eThese G2 dual high-power motor drivers are add-on boards for the Raspberry Pi, featuring pairs of discrete MOSFET H-bridges designed to drive two large brushed DC motors. They are designed to mount on and plug into compatible Raspberry Pi boards (Model B+ or newer), including the \u003ca href=\"\/en-eu\/products\/raspberry-pi-3\" target=\"_blank\"\u003ePi 3 Model B\u003c\/a\u003e and \u003ca href=\"\/en-eu\/products\/raspberry-pi-model-a-with-coupe-royale-pibow\" target=\"_blank\"\u003eModel A+\u003c\/a\u003e. Three versions are available so you can pick the one with the appropriate operating voltage range and output current capabilities for your project:\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eDual G2 High-Power Motor Driver 18v22 for Raspberry Pi\u003c\/th\u003e\n\u003cth\u003eDual G2 High-Power Motor Driver 18v18 for Raspberry Pi\u003c\/th\u003e\n\u003cth\u003eDual G2 High-Power Motor Driver 24v14 for Raspberry Pi\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAbsolute max input voltage:\u003c\/td\u003e\n\u003ctd\u003e30 V\u003c\/td\u003e\n\u003ctd\u003e30 V\u003c\/td\u003e\n\u003ctd\u003e36 V*\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax nominal battery voltage:\u003c\/td\u003e\n\u003ctd\u003e18 V\u003c\/td\u003e\n\u003ctd\u003e18 V\u003c\/td\u003e\n\u003ctd\u003e28 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax continuous current per channel:\u003c\/td\u003e\n\u003ctd\u003e22 A\u003c\/td\u003e\n\u003ctd\u003e18 A\u003c\/td\u003e\n\u003ctd\u003e14 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDefault active current-limiting threshold:\u003c\/td\u003e\n\u003ctd\u003e60 A\u003c\/td\u003e\n\u003ctd\u003e50 A\u003c\/td\u003e\n\u003ctd\u003e40 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e* 40 V if regulator is disconnected\u003c\/p\u003e\n\u003cp\u003eThe minimum operating voltage for all four versions is 6.5 V, while the maximum operating voltages are given in the above table. The board also includes an integrated 5 V, 2.5 A switching step-down regulator that can be used to power the Raspberry Pi it is plugged into, enabling operation from a single power supply.\u003c\/p\u003e\n\u003cp\u003eThe driver’s default configuration uses six GPIO pins to control the motor drivers, making use of the Raspberry Pi’s hardware PWM outputs, and it uses two additional pins to read status outputs from the drivers. However, the pin mappings can be customized if the defaults are not convenient, and pins for current sensing and limiting are accessible on the board for more advanced applications.\u003c\/p\u003e\n\u003cp\u003eNote that this motor driver add-on is designed specifically for newer versions of the Raspberry Pi with 40-pin GPIO headers, including the \u003cstrong\u003eModel B+\u003c\/strong\u003e, \u003cstrong\u003eModel A+\u003c\/strong\u003e, \u003cstrong\u003eRaspberry Pi 2 Model B\u003c\/strong\u003e, and \u003cstrong\u003eRaspberry Pi 3 Model B\u003c\/strong\u003e. The board matches the Raspberry Pi HAT (Hardware Attached on Top) mechanical specification, although it does not conform to the full HAT specifications due to the lack of an ID EEPROM. (A footprint for adding your own EEPROM is available for applications where one would be useful; pull-ups on SDA, SCL, and WP are provided.) It is \u003cem\u003enot\u003c\/em\u003e practical to use this expansion board with the original Raspberry Pi Model A or Model B due to differences in their pinout and form factor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures common to all versions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePWM operation up to 100 kHz\u003c\/li\u003e\n\u003cli\u003eMotor indicator LEDs show what the outputs are doing even when no motor is connected\u003c\/li\u003e\n\u003cli\u003eIntegrated 5 V, 2.5 A switching step-down voltage regulator powers the Raspberry Pi base for single-supply operation\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/github.com\/pololu\/dual-g2-high-power-motor-driver-rpi\" target=\"_blank\"\u003ePython library\u003c\/a\u003e makes it easy to get started using this board as a motor driver expansion board\u003c\/li\u003e\n\u003cli\u003eGPIO pin mappings can be customized if the default mappings are not convenient\u003c\/li\u003e\n\u003cli\u003eCurrent sensing and limiting pins are exposed for advanced use\u003c\/li\u003e\n\u003cli\u003eReverse-voltage protection\u003c\/li\u003e\n\u003cli\u003eUndervoltage shutdown\u003c\/li\u003e\n\u003cli\u003eShort circuit protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe following through-hole connectors and mounting hardware are included with the board, which ships with its surface-mount components populated:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eone 2×20-pin 0.1″ female header\u003c\/li\u003e\n\u003cli\u003ethree 2-pin 5 mm terminal blocks\u003c\/li\u003e\n\u003cli\u003efour M2.5 standoffs (11 mm length), screws, and nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 2×20-pin 0.1″ female header should be mounted to the bottom of the board (the side opposite the surface-mount components). Once soldered, this header is used to connect the board to the Raspberry Pi’s 40-pin GPIO header. Alternatively, if you want to continue to have access to the Raspberry Pi’s 40 GPIO pins while the motor driver board is plugged in, you can install a stackable 2×20-pin female header (not included) instead.\u003c\/p\u003e\n\u003cp\u003eYou can solder the terminal blocks to the six large through-holes to make your motor and motor power connections, or you can solder a 0.1″ male header strip (not included) into the smaller through-holes that border these larger holes. Note, however, that the terminal blocks are only rated for 16 A, and each header pin pair is only rated for a combined 6 A, so for higher-power applications, thick wires should be soldered directly to the board.\u003c\/p\u003e\n\u003cp\u003eThe motor driver includes six 100 μF or 150 μF electrolytic power capacitors, and there is room to add additional capacitors (e.g. to compensate for long power wires or increase stability of the power supply). Additional power capacitors are usually not necessary, and no additional capacitors are included with this motor driver.\u003c\/p\u003e\n\u003ch2\u003eUsing the motor driver board\u003c\/h2\u003e\n\u003ch3\u003ePower\u003c\/h3\u003e\n\u003cp\u003eAn appropriate motor power supply should be connected to the motor driver’s large VIN and GND pads. The board includes a reverse-voltage protection circuit that helps prevent damage in case the motor power supply is connected backward. The reverse-protected input voltage can be accessed for use in other circuits through the two pins labeled VM on the left side of the board.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cimg alt=\"\" src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J8169.1200_medium.jpg?v=1510930079\" style=\"float: none;\"\u003e\u003c\/p\u003e\n\u003cp\u003eBy default, the motor power supply also feeds a 5 V, 2.5 A switching step-down regulator that provides power to the connected Raspberry Pi. An ideal diode circuit makes it safe to have a different power supply connected to the Raspberry Pi through its USB Micro-B receptacle while the motor driver is connected and powered.\u003c\/p\u003e\n\u003cp\u003eIf you want to power the Raspberry Pi separately, the regulator can be disconnected by cutting two exposed traces on the board: one between the surface-mount pads labeled “VM” and “REG IN”, and another between the two pins by the “REG OUT” label, as shown to the right. On the 24v14 and 24v18 versions, disconnecting the regulator increases the absolute maximum operating voltage of the board to 40 V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDefault pin mappings\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis table shows how the Raspberry Pi’s GPIO pins are used to interface with the motor drivers:\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eRPi\u003cbr\u003eGPIO pin\u003c\/th\u003e\n\u003cth\u003eMotor driver pin\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eMotor 1 FLT\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eFault indicator: When the driver channel is functioning normally, this pin should be pulled high by the Raspberry Pi. In the event of a driver fault, FLT is driven low. See below for details.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eMotor 2 FLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12\u003c\/td\u003e\n\u003ctd\u003eMotor 1 PWM\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eMotor speed input: A PWM (pulse-width modulation) signal on this pin corresponds to a PWM output on the corresponding channel’s motor outputs. When this pin is low, the motor brakes low. When it is high, the motor is on. The maximum allowed PWM frequency is 100 kHz.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13\u003c\/td\u003e\n\u003ctd\u003eMotor 2 PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e22\u003c\/td\u003e\n\u003ctd\u003eMotor 1 SLP\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eInverted sleep input: This pin is pulled low by default, putting the motor driver channel into a low-current sleep mode and disabling the motor outputs (setting them to high impedance). SLPmust be driven high to enable the motor channel.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e23\u003c\/td\u003e\n\u003ctd\u003eMotor 2 SLP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003eMotor 1 DIR\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eMotor direction input: When DIR is low, motor current flows from output A to output B; when DIR is high, current flows from B to A.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003ctd\u003eMotor 2 DIR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eMotor control options\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWith the PWM pin held low, both motor outputs will be held low (a brake operation). With PWM high, the motor outputs will be driven according to the DIR input. This allows two modes of operation: sign-magnitude, in which the PWM duty cycle controls the speed of the motor and DIR controls the direction, and locked-antiphase, in which a pulse-width-modulated signal is applied to the DIR pin with PWM held high.\u003c\/p\u003e\n\u003cp\u003eIn locked-antiphase operation, a low duty cycle drives the motor in one direction, and a high duty cycle drives the motor in the other direction; a 50% duty cycle turns the motor off. A successful locked-antiphase implementation depends on the motor inductance and switching frequency smoothing out the current (e.g. making the current zero in the 50% duty cycle case), so a high PWM frequency might be required.\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth colspan=\"3\"\u003eInputs\u003c\/th\u003e\n\u003cth colspan=\"2\"\u003eOutputs\u003c\/th\u003e\n\u003cth rowspan=\"2\"\u003eOperation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSLP\u003c\/th\u003e\n\u003cth\u003eDIR\u003c\/th\u003e\n\u003cth\u003ePWM\u003c\/th\u003e\n\u003cth\u003eMxA\u003c\/th\u003e\n\u003cth\u003eMxB\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003ePWM\u003c\/td\u003e\n\u003ctd\u003ePWM (H\/L)\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003eforward\/brake at speed \u003cem\u003ePWM %\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003ePWM\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003ePWM (H\/L)\u003c\/td\u003e\n\u003ctd\u003ereverse\/brake at speed \u003cem\u003ePWM %\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003eL\u003c\/td\u003e\n\u003ctd\u003ebrake low (outputs shorted to ground)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003eX\u003c\/td\u003e\n\u003ctd\u003eZ\u003c\/td\u003e\n\u003ctd\u003eZ\u003c\/td\u003e\n\u003ctd\u003ecoast (outputs off)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003ePWM frequency\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe motor driver supports PWM frequencies as high as 100 kHz, but note that switching losses in the driver will be proportional to the PWM frequency. Typically, around 20 kHz is a good choice for sign-magnitude operation since it is high enough to be ultrasonic, which results in quieter operation.\u003c\/p\u003e\n\u003cp\u003eA pulse on the PWM pin must be high for a minimum duration of approximately 0.5 µs before the outputs turn on for the corresponding duration (any shorter input pulse does not produce a change on the outputs), so low duty cycles become unavailable at high frequencies. For example, at 100 kHz, the pulse period is 10 µs, and the minimum non-zero duty cycle achievable is 0.5\/10, or 5%.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFault conditions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe motor driver can detect several fault states that it reports by driving the FLT pin low; this is an open-drain output that should be pulled up to your system’s logic voltage. The detectable faults include short circuits on the outputs, under-voltage, and over-temperature. All of the faults disable the motor outputs but are not latched, meaning the driver will attempt to resume operation when the fault condition is removed (or after a delay of a few milliseconds in the case of the short circuit fault). The over-temperature fault provides a weak indication of the board being too hot, but it does not directly indicate the temperature of the MOSFETs, which are usually the first components to overheat, so you should \u003cins\u003enot\u003c\/ins\u003e count on this fault to prevent damage from over-temperature conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemapping pins\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAll of the Raspberry Pi’s GPIO pins are broken out along a row of numbered through-holes just below the 40-pin GPIO connector. Each GPIO pin used by the board is connected from this row to the corresponding motor driver pin by a trace on the top side of the board spanning the pair of holes. If you want to remap one of these motor driver pins, you can cut its trace with a knife and then run a wire from the lower hole to a new GPIO pin.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J8170.600_large.jpg?v=1510930131\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eNote that the default pin mappings were chosen so that the Raspberry Pi’s default GPIO pull-ups and pull-downs match the direction the motor driver pins are or should be pulled (up for SF, down for others); if you remap the motor driver pins without paying attention to this, you might encounter issues with pins being pulled the wrong way. See the \u003ca href=\"https:\/\/www.raspberrypi.org\/help\/\" target=\"_blank\"\u003eRaspberry Pi documentation\u003c\/a\u003e for more about the default GPIO states.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCurrent sensing and limiting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe motor driver exposes current sensing and limiting pins that are not connected to the Raspberry Pi, but they are accessible through their own through-holes in case you want to use them in a more advanced application.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/0J8171.1200_medium.jpg?v=1510930219\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe driver has the ability to limit the motor current through current chopping: once the motor drive current reaches a set threshold, the driver goes into brake mode (slow decay) for about 25 μs before applying power to drive the motor again. This makes it more practical to use the driver with a motor that might only draw a few amps while running but can draw many times that amount (tens of amps) when starting.\u003c\/p\u003e\n\u003cp\u003eFor each motor channel, you can lower the limit by connecting an additional resistor between the VREF pin and the adjacent GND pin; the graph shows how the current limit relates to the VREF resistor value. Note that the current limiting threshold is not highly precise, and is less accurate at especially low settings (indicated by the dashed portion of the curve).\u003c\/p\u003e\n\u003cp\u003eThe driver’s current sense pins, labeled CS, output voltages proportional to the motor currents while the H-bridges are driving. The output voltage for this version is about 20 mV\/A plus a small offset, which is typically about 50 mV.\u003c\/p\u003e\n\u003cp\u003eEach CS output is \u003cins\u003eonly active while the corresponding H-bridge is in drive mode\u003c\/ins\u003e; it is inactive (low) when the channel is in brake mode (slow decay), which happens when the PWM input is low or when current limiting is active. Current will continue to circulate through the motor when the driver begins braking, but the voltage on the CS pin will not accurately reflect the motor current in brake mode. The CS voltage is used internally by the motor driver, so to avoid interfering with the driver’s operation, you should \u003cins\u003enot\u003c\/ins\u003e add a capacitor to this pin or connect a load that draws more than a few mA from it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eReal-world power dissipation considerations\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe MOSFETs can handle large current spikes for short durations (e.g. 100 A for a few milliseconds), and the driver’s current chopping will keep the average current under the set limit. The peak ratings are for quick transients (e.g. when a motor is first turned on), and the continuous rating is dependent on various conditions, such as the ambient temperature. PWMing the motor will introduce additional heating proportional to the frequency. The actual current you can deliver will depend on how well you can keep the motor driver cool. The driver’s printed circuit board is designed to draw heat out of the MOSFETs, but performance can be improved by adding a heat sink or air flow. For high-current installations, the motor and power supply wires should also be soldered directly instead of going through the supplied terminal blocks, which are rated for up to 16 A.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eWarning: This motor driver has no over-temperature shut-off. An over-temperature or over-current condition can cause permanent damage to the motor driver. You might consider using either the driver’s integrated current sense output (with an external ADC) or an external current sensor to monitor your current draw.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThis product can get hot enough to burn under normal operating conditions. Take care when handling this product and other components connected to it.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/github.com\/pololu\/dual-g2-high-power-motor-driver-rpi\" target=\"_blank\"\u003ePython library for the Pololu Dual G2 High Power Motor Drivers for Raspberry Pi\u003c\/a\u003e - \u003c\/p\u003e","brand":"Pololu","offers":[{"title":"24v14","offer_id":1154150694922,"sku":"POL-3752","price":37.5,"currency_code":"GBP","in_stock":false},{"title":"18v18","offer_id":1154150727690,"sku":"POL-3750","price":37.5,"currency_code":"GBP","in_stock":false},{"title":"18v22","offer_id":1154150760458,"sku":"POL-3754","price":52.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/0J8139.1200.jpg?v=1576078858"},{"product_id":"maker-essentials-micro-motors-grippy-wheels","title":"Maker Essentials - Micro-motors \u0026 Grippy Wheels","description":"\u003cp\u003eThese little motors are an ideal plug-and-go solution for your next robot explorer. They even come with adaptors for LEGO® and mounts to attach to your project.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/en-eu\/collections\/maker-essentials\"\u003eMaker Essentials\u003c\/a\u003e are components and useful bits for everyday electronics and tech projects.\u003c\/p\u003e\n\u003ch2\u003eKit contains\u003c\/h2\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cul\u003e\n\u003cli\u003e2x micro metal-gear motors, 298:1, 75RPM - \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/XG-2014032805_JL-12FN20-298-0675.pdf?v=1604917983\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e2x grippy wheels\u003c\/li\u003e\n\u003cli\u003e2x LEGO® shaft adaptors\u003c\/li\u003e\n\u003cli\u003e2x motor mounts\u003c\/li\u003e\n\u003cli\u003e4x mounting bolts\u003c\/li\u003e\n\u003cli\u003e5x mounting nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":1418711662602,"sku":"PIM246","price":22.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Kit_5_of_7.jpg?v=1539262743"},{"product_id":"relay-for-micro-bit","title":"Relay for micro:bit","description":"\u003cp\u003eThe MonkMakes Relay for micro:bit is a solid-state (no moving parts) relay that allows an output of a micro:bit to turn things on and off.\u003c\/p\u003e\n\u003cp\u003eA micro:bit can turn an LED on and off directly, but anything more powerful requires something like a relay or a transistor. Using a transistor to switch something on and off requires a shared ground connection with the micro:bit and a knowledge electronics that you or your students may not be ready for. The MonkMakes Relay for micro:bit is much easier to use, acting like a simple micro:bit controlled switch.\u003c\/p\u003e\n\u003cp\u003eThis relay can be used to switch low voltage devices such as light bulbs, a motor, a small heating element or even a string of 12V LED lighting. The voltage needs to be kept under 16V, but the relay will automatically protect itself against too much current.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/connected-copy-1024x656_large.jpg?v=1512399592\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSolid-sate relay (up to 2 Amps)\u003c\/li\u003e\n\u003cli\u003eActive LED indicator\u003c\/li\u003e\n\u003cli\u003eResettable ‘polyfuse’ to protect against over-current\u003c\/li\u003e\n\u003cli\u003eCompatible with micro:bit v1 and v2!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eGetting Started\u003c\/h2\u003e\n\u003cp\u003eConnecting your micro:bit\u003c\/p\u003e\n\u003cp\u003eThe Relay requires just two connections to the micro:bit. One to GND (ground) and one to whatever pin is to be used to control the relay’s switching action.\u003c\/p\u003e\n\u003cp\u003eWhen attaching the alligator clips to the micro:bit, make sure that the clips are perpendicular to the board so that they are not touching any of the neighbouring connectors on the micro:Bit edge connector.\u003c\/p\u003e\n\u003cp\u003eHere’s an example of how you could wire up a MonkMakes Relay for micro:bit to turn an old fashioned light bulb on and off.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/wiring_relay-929x1024_large.png?v=1512399623\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHEX File\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe quickest way to try out your relay is to \u003ca href=\"https:\/\/monkmakes.com\/blink_relay.hex\" target=\"_blank\"\u003eDOWNLOAD THIS HEX FILE \u0026gt;\u003c\/a\u003eand then copy it onto your micro:bit. The program will turn the relay on and off once a second.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJavaScript Blocks Editor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSet the controlling pin to 1 and the relay contacts will close, set it to 0 and the contacts will open again. Its as simple as that. So, to make your relay turn on and off once a second, \u003ca href=\"http:\/\/python.microbit.org\/editor.html\" target=\"_blank\"\u003eopen the Blocks Editor\u003c\/a\u003e, add a \u003cem\u003eforever\u003c\/em\u003e block and then the \u003cem\u003edigital write\u003c\/em\u003e blocks from the \u003cem\u003epins\u003c\/em\u003e category and the \u003cem\u003epauses\u003c\/em\u003e from the \u003cem\u003ebasic \u003c\/em\u003ecategory.\u003c\/p\u003e\n\u003cp\u003eYou can also click on the image of the blocks below to open up the Blocks Editor on this project.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makecode.microbit.org\/_R9Aa5gejw1p2\" target=\"_blank\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/blocks_large.png?v=1512399662\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMicroPython\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePaste the following code into the \u003ca href=\"http:\/\/python.microbit.org\/editor.html\" target=\"_blank\"\u003ePython window\u003c\/a\u003e and then Download the file and copy it onto your your micro:bit.\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003efrom microbit import *\u003cbr\u003e\u003cbr\u003ewhile True:\u003cbr\u003e    pin0.write_digital(True)\u003cbr\u003e    sleep(500)\u003cbr\u003e    pin0.write_digital(False)\u003cbr\u003e    sleep(500)\u003c\/code\u003e\u003c\/p\u003e\n\u003ch2\u003eAnalog Outputs\u003c\/h2\u003e\n\u003cp\u003eThe latest MonkMakes Relay for micro:bit can do more than just switch things on and off. It can also be used with micro:bit analog outputs. Look closely at your Relay for micro:bit and is it has the version number \u003cstrong\u003ev1ev\u003c\/strong\u003e (under the word ‘Board’) then it can be used with the ‘analog write’ block in the blocks editor or the ‘write_analog’ function in MicroPython. If your board has the version number \u003cstrong\u003ev1e\u003c\/strong\u003e then it is not suitable for use with analog outputs – sorry you were unlucky to get one of the small batch of first boards to be sold.\u003c\/p\u003e\n\u003cp\u003eThe output of the Relay for micro:bit is not linear at low PWM and high PWM values as the following chart illustrates.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/graph_large.png?v=1512399750\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThe y-axis shows the current in mA for a test load resistor supplied from a constant voltage source. The x-axis is the analog write value (0 to 1023). As you can see, there is a dead zone up to a analog output value of about 100, followed by a relatively good linear region right up to about 1000, after which the output effectively becomes ‘on’.\u003c\/p\u003e\n\u003cp\u003eThe tests were carried out at the default PWM frequency of 50Hz for the micro:bit. Lower frequency PWM is expected to produce more linear results.\u003c\/p\u003e","brand":"Monk Makes","offers":[{"title":"Default Title","offer_id":1447864369162,"sku":"MNK00061","price":7.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Monk_1_of_3.JPG?v=1539263534"},{"product_id":"micro-360-degree-continuous-rotation-servo-fs90r","title":"Micro 360° Continuous Rotation Servo (FS90R)","description":"\u003cp\u003eThese continuous rotation servos are ideal when you need very precise degrees of rotation, to build a dial display for example. \u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions:\u003c\/td\u003e\n\u003ctd\u003e23.2×12.5×22 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight:\u003c\/td\u003e\n\u003ctd\u003e9g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating speed:\u003c\/td\u003e\n\u003ctd\u003e110RPM (4.8V) \/ 130RPM (6V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStall torque :\u003c\/td\u003e\n\u003ctd\u003e1.3kg.cm\/18.09oz.in (4.8V) \/ 1.5kg.cm\/20.86oz.in (6V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage:\u003c\/td\u003e\n\u003ctd\u003e4.8-6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eControl system:\u003c\/td\u003e\n\u003ctd\u003eAnalog\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirection:\u003c\/td\u003e\n\u003ctd\u003eCCW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating angle:\u003c\/td\u003e\n\u003ctd\u003e360 degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRequired pulse:\u003c\/td\u003e\n\u003ctd\u003e900-2100us\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBearing type:\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear type:\u003c\/td\u003e\n\u003ctd\u003ePlastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor type:\u003c\/td\u003e\n\u003ctd\u003eMetal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnecting wire length:\u003c\/td\u003e\n\u003ctd\u003e20cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":1560655069194,"sku":"COM0812","price":3.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/FS90R.jpg?v=1513160845"},{"product_id":"mini-solenoid","title":"Mini Solenoid","description":"\u003cp\u003eUse these mini solenoids to push or hit whatever you want (within reason). Ideal for ringing bells, hitting drums, pushing buttons, or flicking switches!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated voltage: 5V\u003c\/li\u003e\n\u003cli\u003eCurrent (at 5V): 0.42A\u003c\/li\u003e\n\u003cli\u003eDC resistance: 12\u003cspan\u003eΩ±5%\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eStroke: 3.5mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eConnection type: bare wire\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/DS-0420S-05A12_Model_12.pdf?3886622400701759152\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWarning: solenoids should only be activated for a few seconds at a time to avoid overheating!\u003c\/strong\u003e\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":2284520931338,"sku":"COM2700","price":4.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Solenoid_1_of_1.JPG?v=1524485801"},{"product_id":"sparkfun-motor-driver-dual-tb6612fng-1a-1","title":"SparkFun Motor Driver - Dual TB6612FNG (1A)","description":"\u003cp\u003eThe TB6612FNG Motor Driver can control up to two DC motors at a constant current of 1.2A (3.2A peak).\u003c\/p\u003e\n\u003cp\u003eTwo input signals (IN1 and IN2) can be used to control the motor in one of four function modes: CW, CCW, short-brake and stop. The two motor outputs (A and B) can be separately controlled, and the speed of each motor is controlled via a PWM input signal with a frequency up to 100kHz. The STBY pin should be pulled high to take the motor out of standby mode.\u003c\/p\u003e\n\u003cp\u003eLogic supply voltage (VCC) can be in the range of 2.7–5.5VDC, while the motor supply (VM) is limited to a maximum voltage of 15VDC. The output current is rated up to 1.2A per channel (or up to 3.2A for a short, single pulse).\u003c\/p\u003e\n\u003cp\u003eThis little board comes with all components installed as shown. Decoupling capacitors are included on both supply lines. All pins of the TB6612FNG are broken out to two 0.1\" pitch headers; the pins are arranged such that input pins are on one side and output pins are on the other.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePower supply voltage: VM = 15V max, VCC = 2.7–5.5V\u003c\/li\u003e\n\u003cli\u003eOutput current: Iout = 1.2A (average) \/ 3.2A (peak)\u003c\/li\u003e\n\u003cli\u003eStandby control to save power\u003c\/li\u003e\n\u003cli\u003eCW\/CCW\/short-brake\/stop motor control modes\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermal shutdown circuit and low-voltage detecting circuit\u003c\/li\u003e\n\u003cli\u003eAll pins of the TB6612FNG broken out to 0.1\" spaced pins\u003c\/li\u003e\n\u003cli\u003eFiltering capacitors on both supply lines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eDocuments\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/TB6612FNG_Breakout_v11.pdf?16695519303656506995\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/www.sparkfun.com\/datasheets\/Robotics\/TB6612FNG%20Breakout%20v11.zip\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/tb6612fng-hookup-guide\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/TB6612FNG_3e2152f9-ac47-436b-bb2d-0abf1ce342e0.pdf?15448876658223299941\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e (TB6612FNG)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/bildr.org\/2012\/04\/tb6612fng-arduino\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ebildr Tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/Motor_Driver-Dual_TB6612FNG\/tree\/V_1.1\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"SparkFun Motor Driver - Unsoldered Header","offer_id":40812215468115,"sku":"ROB-14451","price":10.75,"currency_code":"GBP","in_stock":false},{"title":"SparkFun Motor Driver  - Header Pre-soldered","offer_id":40812215500883,"sku":"ROB-14450","price":10.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/14451-01.jpg?v=1525436207"},{"product_id":"line-follower-sensor-pack-for-robo-bit-buggy","title":"Line Follower Sensor Pack for Robo:Bit Buggy","description":"\u003cp\u003eThis pack adds twin line following sensors to your \u003ca href=\"\/en-eu\/products\/robo-bit-mk2-buggy-for-the-micro-bit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRobo:Bit buggy\u003c\/a\u003e. Simply screw together and plug in the included cables.\u003c\/p\u003e\n\u003cp\u003eThis pack includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x 30mm pillars\u003c\/li\u003e\n\u003cli\u003e4 x 6mm screws\u003c\/li\u003e\n\u003cli\u003e2 x Line Follower sensors\u003c\/li\u003e\n\u003cli\u003e2 x 10cm GVS cables\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"4tronix","offers":[{"title":"Default Title","offer_id":2530541993994,"sku":"4TR-RBITL","price":5.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/IMG_1371a_1024x1024_f3b2e7c2-732a-4ef5-a943-05c7f76547e8.jpg?v=1520443005"},{"product_id":"adafruit-16-channel-pwm-servo-bonnet-for-raspberry-pi","title":"Adafruit 16-Channel PWM \/ Servo Bonnet for Raspberry Pi","description":"\u003cp\u003eControl 16 Servos with perfect timing!\u003c\/p\u003e\n\u003cp\u003eThe Raspberry Pi is a wonderful little computer, but one thing it isn't very good at is controlling Servo Motors - these motors need very specific and repetitive timing pulses to set the position. Instead of asking the Pi Linux kernel to send these signals, pop on this handy bonnet! It adds the capability to control 16 Servos with perfect timing. It can also do PWM up to 1.6 KHz with 12 bit precision, all completely free-running.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor use with Raspberry Pi Model Zero, A+, B+, Pi 2, Pi 3 or Pi 4 (any Pi with 2x20 header).\u003c\/strong\u003e This bonnet will not fit on an original Raspberry Pi with 2x13 pin header.\u003c\/p\u003e\n\u003cp\u003eThe Adafruit 16-Channel 12-bit PWM\/Servo Bonnet will drive up to 16 servos or PWM outputs over I2C with only 2 pins. The on-board PWM controller will drive all 16 channels simultaneously with no additional Raspberry Pi processing overhead. What's more, you can stack up to 62 of them to control up to 992 servos - all with the same 2 pins!\u003c\/p\u003e\n\u003cp\u003eWorks with any servo that can be powered by 5V and take 3.3V logic level signals. There's a solder jumper you can adjust if you'd like to change the output logic level to be 5V\u003c\/p\u003e\n\u003cp\u003eBest of all, Adafruit even have a Python library you can use, so you'll be up and running instantly, to make your robotic creation come to life. The Adafruit PWM\/Servo Bonnet is the perfect solution for any project that requires a lot of servos or PWM outputs! \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-16-channel-pwm-servo-hat-for-raspberry-pi\/\" target=\"_blank\"\u003ePlease check out the detailed tutorial for lots more information including diagrams, schematics, installation instructions and more\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eEach order comes with a Servo Bonnet, a 2-pin terminal block, 2.1mm DC jack, and four 3x4 headers. You'll need to do some light through-hole soldering to attach the terminal block or jack, and headers onto the bonnet circuit board, but its easy to do with basic soldering tools like a soldering iron and rosin core electronics solder. If you would like to stack multiple bonnets onto one Pi, you can also pick up a 2x20 stacking header and a set of right-angle 3x4 headers that should be soldered on instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note!\u003c\/strong\u003e \u003cstrong\u003eThis kit does not come with Raspberry Pi, servos, or required 5V power supply.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoard Dimensions\u003c\/strong\u003e (w\/o components): 65mm x 30.4mm x 8mm \/ 2.5\" x 1.19\" x 0.31\"\u003c\/li\u003e\n\u003cli\u003e8.5g \/ .29oz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of December 7, 2022\u003c\/strong\u003e - Adafruit have updated this PCB with \u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_Pinguin\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAdafruit Pinguin\u003c\/a\u003e to make a lovely and legible silkscreen - you may get the new PCB or the older version with vector fonts - both are identical other than the fancy silkscreen.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":2821150736394,"sku":"ADA3416","price":10.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3416-03.jpg?v=1522077394"},{"product_id":"vl53l1x-breakout","title":"VL53L1X Time of Flight (ToF) Sensor Breakout","description":"\u003cp\u003eAn all-singing, all-dancing time of flight distance sensor that uses PEW PEW LASERS (low-powered ones), our VL53L1X breakout is easy to use with Raspberry Pi or Arduino alike!\u003c\/p\u003e\n\u003cp\u003eThese low-power-laser-based time of flight sensors have great accuracy and sampling frequency, and this particular sensor has a wide range of detection, from 4cm to 4 metres.\u003c\/p\u003e\n\u003cp\u003eUse it as a proximity sensor, for presence detection, or as a laser tape measure! The speed, accuracy, and range, make this sensor ideal for collision-avoidance on robots.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt's also compatible with our fancy new \u003c\/span\u003e\u003ca href=\"\/en-eu\/products\/breakout-garden-hat\" target=\"_blank\"\u003eBreakout Garden\u003c\/a\u003e\u003cspan\u003e, where using breakouts is as easy just popping it into one of the six slots and starting to grow your project, create, and code.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVL53L1X Time of Flight (ToF) sensor (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/vl53l1x.pdf?3713516543837568345\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e4-400cm range (27° field of view)\u003c\/li\u003e\n\u003cli\u003eUp to 50Hz ranging frequency\u003c\/li\u003e\n\u003cli\u003e+\/- 25mm accuracy (+\/- 20mm in the dark)\u003c\/li\u003e\n\u003cli\u003eI2C interface (address 0x29)\u003c\/li\u003e\n\u003cli\u003e3.3V or 5V compatible\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection\u003c\/li\u003e\n\u003cli\u003eCompatible with all models of Raspberry Pi, and Arduino\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/pimoroni\/vl53l1x-python\" target=\"_blank\"\u003ePython library\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eKit includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVL53L1X breakout\u003c\/li\u003e\n\u003cli\u003e1x5 male header\u003c\/li\u003e\n\u003cli\u003e1x5 female right-angle header\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWe've designed this breakout board so that you can solder on the piece of right-angle female header and pop it straight onto the bottom left 5 pins on your Raspberry Pi's GPIO header (pins 1, 3, 5, 7, 9).\u003c\/p\u003e\n\u003ch2\u003eSoftware\u003c\/h2\u003e\n\u003cp\u003eOur \u003ca href=\"https:\/\/github.com\/pimoroni\/vl53l1x-python\" target=\"_blank\"\u003ePython library\u003c\/a\u003e makes it straightforward to use your time of flight sensor, providing methods for short, medium, and long range, and returning distances in mm. We've also included a couple of \u003ca href=\"https:\/\/github.com\/pimoroni\/vl53l1x-python\/tree\/master\/examples\" target=\"_blank\"\u003eexamples\u003c\/a\u003e that graph distance sensed, and set a threshold distance at which events can be triggered.\u003c\/p\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 19x19x3.2mm (LxWxH).\u003c\/li\u003e\n\u003cli\u003eIf you want to use multiple VL53L1X breakouts together you can (temporarily) change the I2C addresses using \u003ca href=\"https:\/\/github.com\/pimoroni\/vl53l1x-python\/blob\/master\/examples\/change-address.py\" target=\"_blank\"\u003ethis Python script\u003c\/a\u003e. Addresses changed like this won't persist after a reboot.\u003c\/li\u003e\n\u003cli\u003eAlternatively, you could use an I2C multiplexer which will let you use multiple breakouts with the same address. \u003ca href=\"https:\/\/github.com\/pimoroni\/vl53l1x-python\/blob\/master\/examples\/distance_multiplexer.py\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThis example\u003c\/a\u003e shows how to use these breakouts with a \u003ca href=\"\/en-eu\/products\/tca9548a-i2c-multiplexer\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTCA9548A I2C Multiplexer\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":12628497236051,"sku":"PIM373","price":13.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/VL53L1X_3_of_4.JPG?v=1532596605"},{"product_id":"adafruit-crickit-for-circuit-playground-express","title":"Adafruit CRICKIT for Circuit Playground Express","description":"\u003cp\u003eSometimes we wonder if robotics engineers ever watch movies. If they did, they'd know that making robots into slaves always ends up in a robot rebellion. Why even go down that path? At Adafruit, they believe in making robots our \u003cstrong\u003efriends!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSo if you find yourself wanting a companion, consider the robot. They're fun to program, and you can get creative with decorations.\u003c\/p\u003e\n\u003cp\u003eWith that in mind, Adafruit designed \u003cstrong\u003eCrickit\u003c\/strong\u003e - That's their \u003cstrong\u003eC\u003c\/strong\u003ereative \u003cstrong\u003eR\u003c\/strong\u003eobotics \u0026amp; \u003cstrong\u003eI\u003c\/strong\u003enteractive \u003cstrong\u003eC\u003c\/strong\u003eonstruction \u003cstrong\u003eKit\u003c\/strong\u003e. It's an add-on to the popular Circuit Playground Express that lets you \u003cstrong\u003e#MakeRobotFriend \u003c\/strong\u003eusing CircuitPython, MakeCode (coming soon), or Arduino.\u003c\/p\u003e\n\u003cp\u003eBolt on your Circuit Playground using the included stand-off bolts and start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements \u0026amp; extends the Circuit Playground so you can still use all the goodies on the CPX, but now you have a robotics playground as well.\u003c\/p\u003e\n\u003cp\u003eThe Crickit is powered by seesaw, the I2C-to-whatever bridge firmware. So you only need to use two data pins to control the huge number of inputs and outputs on the Crickit. All those timers, PWMs, sensors are offloaded to the co-processor.\u003c\/p\u003e\n\u003cp\u003eYou get:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e4 x Analog or Digital Servo control, with precision 16-bit timers\u003c\/li\u003e\n\u003cli\u003e2 x Bi-directional brushed DC motor control, 1 Amp current limited each, with 8-bit PWM speed control (or one stepper)\u003c\/li\u003e\n\u003cli\u003e4 x High current \"Darlington\" 500mA drive outputs with kick-back diode protection. For solenoids, relays, large LEDs, or one uni-polar stepper\u003c\/li\u003e\n\u003cli\u003e4 x Capacitive touch sensors with alligator-pads\u003c\/li\u003e\n\u003cli\u003e8 x Signal pins, digital in\/out or analog inputs\u003c\/li\u003e\n\u003cli\u003e1 x NeoPixel driver with 5V level shifter\u003c\/li\u003e\n\u003cli\u003e1 x Class D, 4-8 ohm speaker, 3W-max audio amplifier\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll are powered via 5V DC, so you can use any 5V-powered servos, DC motors, steppers, solenoids, relays etc. To keep things simple and safe, Adafruit don't support mixing voltages, so only 5V, not for use with 9V or 12V robotic components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note this robot board does not require any soldering but you will need a power supply and a Circuit Playground Express to go along with the Crickit and these are not included! We recommend also purchasing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.adafruit.com\/product\/3333\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCircuit Playground Express\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e5V 2A power supply\u003c\/li\u003e\n\u003cli\u003eIf you're going to be running more than 2 large motors or servos at a time, we recommend a 5V 4A power supply\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSince you'll be working with high-current devices, Adafruit wanted to have a good solid power supply system that minimizes risk of damage. The power supply has an \u003ca href=\"http:\/\/www.ti.com\/product\/TPS2595\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e'eFuse' management chip\u003c\/a\u003e that will automatically turn off if the voltage goes above 5.5V or below 3V and has over-current protection at 4A. Every motor driver has kick-back protection. We think this is a nice and durable board for robotics!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-crickit-creative-robotic-interactive-construction-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eLots more details, schematics, specifications, and code examples in the (still in progress) Adafruit Learn guide.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 85.0mm x 81.0mm x 14.7mm \/ 3.3\" x 3.2\" x 0.6\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 30.7g \/ 1.1oz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":12762861404243,"sku":"ADA3093","price":24.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3093-07.jpg?v=1534238176"}],"url":"https:\/\/shop.pimoroni.com\/en-eu\/collections\/robotics.oembed","provider":"Pimoroni Ltd","version":"1.0","type":"link"}