{"title":"Audio","description":"Tons of noisy add-ons for your Raspberry Pi, Arduino, micro:bit or Adafruit project -  speakers, microphones, amps and DACs, as well as miniature drum kits, tiny pianos and much more. Check out our Pirate Audio range to add high quality digital audio to your old hi-fi or speakers!","products":[{"product_id":"adafruit-electret-microphone-amplifier","title":"Adafruit Electret Microphone Amplifier with Adjustable Gain","description":"\u003cp\u003eAdd an ear to your project with this well-designed electret microphone amplifier.\u003c\/p\u003e\n\u003cp\u003eThis fully assembled and tested board comes with a 20-20KHz electret microphone soldered on. For the amplification, it has the Maxim MAX4466, an op-amp specifically designed for this delicate task! The amplifier has excellent power supply noise rejection, so this amplifier sounds really good and isn't nearly as noisy or scratchy as other mic amp breakouts we've tried!\u003c\/p\u003e\n\u003cp\u003eThis breakout is best used for projects such as voice changers, audio recording\/sampling, and audio-reactive projects that use FFT. On the back, we include a small trimmer pot to adjust the gain. You can set the gain from 25x to 125x. That's down to be about 200mVpp (for normal speaking volume about 6\" away) which is good for attaching to something that expects 'line level' input without clipping, or up to about 1Vpp, ideal for reading from a microcontroller ADC. The output is rail-to-rail so if the sounds gets loud, the output can go up to 5Vpp!\u003c\/p\u003e\n\u003cp\u003eUsing it is simple: connect GND to ground, VCC to 2.4-5VDC. For the best performance, use the \"quietest\" supply available (on an Arduino, this would be the 3.3V supply). The audio waveform will come out of the OUT pin. The output will have a DC bias of VCC\/2 so when its perfectly quiet, the voltage will be a steady VCC\/2 volts (it is DC coupled). If the audio equipment you're using requires AC coupled audio, place a 100uF capacitor between the output pin and the input of your device. If you're connecting to an audio amplifier that has differential inputs or includes decoupling capacitors, the 100uF cap is not required.\u003c\/p\u003e\n\u003cp\u003eThe output pin is not designed to drive speakers or anything but the smallest in-ear headphones - you'll need \u003ca href=\"\/en-eu\/products\/adafruit-stereo-3-7w-class-d-audio-amplifier\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ean audio amplifier (such as this 3.7W stereo amp) if you want to connect the amp directly to speakers\u003c\/a\u003e. If you're connecting to a microcontroller pin, you don't need an amplifier or decoupling capacitor - connect the OUT pin directly to the microcontroller ADC pin.\u003c\/p\u003e\n\u003cp\u003eFor audio-reactive projects, \u003ca href=\"http:\/\/learn.adafruit.com\/piccolo\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewe suggest using an FFT driver library (such as the one in this library)\u003c\/a\u003e which can take the audio input and 'translate' it into frequencies. Also, \u003ca href=\"http:\/\/learn.adafruit.com\/wave-shield-voice-changer\" target=\"_blank\" rel=\"noopener noreferrer\"\u003echeck out this awesome Voice Changer project that uses this mic and an Adafruit Wave Shield!\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=\"https:\/\/github.com\/adafruit\/Adafruit-MAX4466-Electret-Mic-Amplifier-PCBs\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEagleCAD PCB files on GitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/MAX4465-MAX4469.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eMAX4466 Low-Noise Microphone Amp Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/CMA-4544PF-W.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eElectret Capsule Microphone Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Fritzing-Library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eFritzing object in Fritzing library\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":283351980,"sku":"ADA1063","price":5.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1063-03.jpg?v=1539264383"},{"product_id":"adafruit-12-bit-dac-w-i2c-interface","title":"MCP4725 Breakout Board - 12-Bit DAC with I2C Interface","description":"\u003cp\u003eYour microcontroller probably has an ADC (analog -\u0026gt; digital converter) but does it have a DAC (digital -\u0026gt; analog converter)??? Now it can!\u003c\/p\u003e\n\u003cp\u003eThis breakout board features the easy-to-use MCP4725 12-bit DAC. Control it via I2C and send it the value you want it to output, and the VOUT pin will have it. Great for audio \/ analog projects, such as when you can't use PWM but need a sine wave or adjustable bias point.\u003c\/p\u003e\n\u003cp\u003eAdafruit break out the ADDR\/A0 pin so you can connect two of these DACs on one I2C bus, just tie that pin of one high (or close the jumper on the back) to keep it from conflicting. Also included is a 6-pin header, for use in a breadboard. Works with both 3.3V or 5V logic.\u003c\/p\u003e\n\u003cp\u003eSome nice extras with this chip: for chips that have 3.4Mbps Fast Mode I2C (Arduino's don't) you can update the Vout at ~200 KHz. There's an EEPROM so if you write the output voltage, you can 'store it' so if the device is power cycled it will restore that voltage. The output voltage is rail-to-rail and proportional to the power pin so if you run it from 3.3V, the output range is 0-3.3V. If you run it from 5V the output range is 0-5V.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/mcp4725-12-bit-dac-tutorial\" target=\"_blank\"\u003eAdafruit have an easy-to-use Arduino and CircuitPython\/Python library and tutorial with a triangle-wave and sine-wave output example\u003c\/a\u003e that can be used with just about any microcontroller or microcomputer with I2C host.\u003c\/p\u003e\n\u003cp\u003eComes with a bit of 0.1\" standard header in case you want to use it with a breadboard or perfboard. Four mounting holes for easy attachment. There's an optional 3.5mm terminal block spot on the PCB - it doesn't include a 3.5mm terminal block but they're both common and \u003ca href=\"\/en-eu\/products\/screw-terminals-3-5mm-pitch-pack-of-10\" target=\"_blank\"\u003estocked in the shop\u003c\/a\u003e - that you can solder in place if you like.\u003c\/p\u003e\n\u003cp\u003eTo get you going fast, Adafruit spun up a custom-made PCB in the \u003ca href=\"\/en-eu\/collections\/stemma-qt\" target=\"_blank\"\u003eSTEMMA QT form factor\u003c\/a\u003e, making it easy to interface with. The STEMMA QT connectors on either side are compatible with the \u003ca href=\"\/en-eu\/collections\/qwiic\" target=\"_blank\"\u003eSparkFun Qwiic\u003c\/a\u003e I2C connectors. This allows you to make solderless connections between your development board and the MCP4725 or to chain it with a wide range of other sensors and accessories using a compatible cable.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/en-eu\/products\/jst-sh-cable-qwiic-stemma-qt-compatible\" target=\"_blank\"\u003eQT Cable is not included, but we have a variety in the shop. \u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/mcp4725-12-bit-dac-tutorial\/download\" target=\"_blank\"\u003eDatasheet, Fritzing, and EagleCAD PCB files available in the product tutorial\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eThis board\/chip uses I2C 7-bit address, you can use 0x62 or 0x63\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 Jan 12, 2022\u003c\/strong\u003e - Adafruit have updated this sensor to be STEMMA QT compatible - that means there's now an easy way to plug-and-play this device without any soldering! The physical shape and pinout has changed a little\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":296152741,"sku":"ADA935","price":4.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/935-06.jpg?v=1642498141"},{"product_id":"adafruit-stereo-3-7w-class-d-audio-amplifier","title":"Adafruit Stereo 3.7W Class D Audio Amplifier","description":"\u003cp\u003eThis incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 3.7W channels into 3 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC.\u003c\/p\u003e\n\u003cp\u003eSince the amp is a class D, its incredibly efficient (over 90% efficient when driving an 8Ω speaker at over a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. This board is a welcome upgrade to basic \"LM386\" amps!\u003c\/p\u003e\n\u003cp\u003eThe inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the R- and L- to ground. The outputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground. The output is a 360KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003c\/p\u003e\n\u003cp\u003eComes with a fully assembled and tested breakout board with 1.0uF input capacitors. Adafruit also include header to plug it into a breadboard, 3.5mm screw-terminal blocks so you can easily attach\/detach your speakers, and a 2x4 header + jumper to change the amplifier gain on the fly. You will be ready to rock in 15 minutes! \u003cstrong\u003eSpeakers are not included, use any 3ohm or greater impedance speakers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power: 3.7W at 3Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply\u003c\/li\u003e\n\u003cli\u003ePasses EMI limit unfiltered with up to 12 inches (30 cm) of speaker cable\u003c\/li\u003e\n\u003cli\u003eHigh 83dB PSRR at 217Hz\u003c\/li\u003e\n\u003cli\u003eSpread-Spectrum Modulation and Active Emissions Limiting\u003c\/li\u003e\n\u003cli\u003eFive pin-selectable gains: 6dB, 9dB, 12dB, 15dB and 18dB. Select with a jumper or by setting the G and G' breakout pins (see \u003ca href=\"http:\/\/www.adafruit.com\/datasheets\/MAX98306schem.png\" target=\"_blank\"\u003eschematic for breakout board showing gain pin settings\u003c\/a\u003e for details)\u003c\/li\u003e\n\u003cli\u003eExcellent click-and-pop suppression\u003c\/li\u003e\n\u003cli\u003eThermal and short-circuit\/over-current protection\u003c\/li\u003e\n\u003cli\u003eLow current draw: 2mA quiescent and 10uA in shutdown mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/stereo-3-7w-class-d-audio-amplifier\/downloads\" target=\"_blank\"\u003eDatasheet, schematic, and Fritzing library available in the product tutorial\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions (without 0.1\" header):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLength:28.25mm\/1.11in\u003c\/li\u003e\n\u003cli\u003eWidth:24.15mm\/0.95in\u003c\/li\u003e\n\u003cli\u003eHeight:3.03mm\/0.12in\u003c\/li\u003e\n\u003cli\u003eWeight:2.33g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":315959611,"sku":"ADA987","price":7.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/987.jpg?v=1539264774"},{"product_id":"adafruit-stereo-2-8w-class-d-audio-amplifier-ts2012","title":"Stereo 2.1W Class D Audio Amplifier - TPA2012","description":"\u003cp\u003eThis incredibly small stereo amplifier is surprisingly powerful - able to deliver 2 x 2.1W channels into 4 ohm impedance speakers (@ 10% THD).\u003c\/p\u003e\n\u003cp\u003eInside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, it's incredibly efficient (89% efficient when driving an 8Ω speaker at 1.5 Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. This board is a welcome upgrade to basic \"LM386\" amps!\u003c\/p\u003e\n\u003cp\u003eThe inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the R- and L- to ground. The outputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground. The output is a ~300KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003c\/p\u003e\n\u003cp\u003eComes with a fully assembled and tested breakout board with 1.0uF input capacitors. It also includes a dual mini DIP switch for setting the amplifier gain on the fly, 3.5mm screw-terminal blocks so you can easily attach\/detach your speakers, and some header in case you want to plug it into a breadboard. You will be ready to rock in 15 minutes! \u003cstrong\u003eSpeakers are not included, use any \u003ca href=\"\/en-eu\/products\/mini-speaker-4-3w\" target=\"_blank\"\u003e4 ohm\u003c\/a\u003e or 8 ohm impedance speakers.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power: 2.1W at 4Ω, 10% THD, 1.4W at 8Ω, 10% THD, with 5V Supply\u003c\/li\u003e\n\u003cli\u003ePSRR: 77 dB typ @ 217 Hz with 6 dB gain\u003c\/li\u003e\n\u003cli\u003eDesigned for use without an output filter, when wires are kept at under 2\"-4\" long\u003c\/li\u003e\n\u003cli\u003eFour pin-selectable gains: 6dB, 12dB, 18dB and 24dB. Select with the onboard switches or by setting the G0 and G1 breakout pins (see \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-ts2012-2-8w-stereo-audio-amplifier\/downloads\" target=\"_blank\"\u003eschematic for breakout board showing gain pin settings\u003c\/a\u003e for details)\u003c\/li\u003e\n\u003cli\u003eExcellent click-and-pop suppression\u003c\/li\u003e\n\u003cli\u003eThermal shutdown protection\u003c\/li\u003e\n\u003cli\u003eIndependent channel shutdown\u003c\/li\u003e\n\u003cli\u003eLow current draw: typ 6mA quiescent and 1.5uA in shutdown mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-ts2012-2-8w-stereo-audio-amplifier\/\" target=\"_blank\"\u003eCheck out the tutorial for more details!\u003c\/a\u003e\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\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions (without 0.1\" header): 22.96mm \/ 0.9\" x 28.33mm \/ 1.11\" x 4.97mm \/ 0.19\"\u003c\/li\u003e\n\u003cli\u003eWeight: 2.56g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRevision History\u003c\/strong\u003e: As of May 23, 2016 Adafruit have updated this breakout to use the TPA2012 rather than the TS2012. This is an overall-equivalent part with slightly less power output. You can use the two interchangeably for 99% of projects. The TS2012 has been discontinued!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-ts2012-2-8w-stereo-audio-amplifier\/downloads\" target=\"_blank\"\u003eDatasheets, schematics, PCB files, Fritzing object and more in the tutorial!\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/tpa2012d2.pdf?6826306524397209002\" target=\"_blank\"\u003eTPA2012 Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":376721721,"sku":"ADA1552","price":8.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1552-03.jpg?v=1539263781"},{"product_id":"3-speaker-4-3w","title":"3\" Speaker 4Ω (5W)","description":"\u003cp\u003eWhoop whoop! This is a lovely little speaker ideal for embedding into all sorts of projects.\u003c\/p\u003e\n\u003cp\u003eProviding a solid 5W of power at 4Ω it's perfect for internet radio, mini arcade cabinets, irritating warning sounds, and more! We hook it up to the \u003ca href=\"\/en-eu\/products\/adafruit-stereo-2-8w-class-d-audio-amplifier-ts2012\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAdafruit Stereo 2.8W Class D Audio Amplifier\u003c\/a\u003e for some dope beats in the workshop.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 77.8mm x 77.8mm (25.5mm deep)\u003c\/li\u003e\n\u003cli\u003eMounting points: 60mm apart\u003c\/li\u003e\n\u003cli\u003eWeight: 55g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":380549926,"sku":"COM1600","price":2.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Speaker_1_of_3.JPG?v=1539264107"},{"product_id":"adafruit-vs1053-codec-microsd-breakout-mp3-wav-midi-ogg-play-record","title":"VS1053 Codec + MicroSD Breakout - MP3\/WAV\/MIDI\/OGG Play + Record - v4","description":"\u003cp\u003eThis breakout board is the ultimate companion for the VLSI VS1053B DSP codec chip. The VS1053 can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM).\u003c\/p\u003e\n\u003cp\u003eIt can also be used to record audio in both PCM (WAV) and compressed Ogg Vorbis. You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume digitally. There is also 8 GPIO pins that can be used for stuff like lighting up small LEDs or reading buttons.\u003c\/p\u003e\n\u003cp\u003eAll this functionality is implemented in a light-weight SPI interface so nearly any microcontroller can play audio from an SD card. There's also a special MIDI mode that you can boot the chip into that will read 'classic' 31250Kbaud MIDI data on a UART pin and act like a synth\/drum machine - there are dozens of built-in drum and sample effects! But the chip is a pain to solder, and needs a lot of extras. That's why Adafruit spun up the best breakout, perfect for use with an Arduino but also good for other microcontrollers that just don't have the computational power to decode MP3s.\u003c\/p\u003e\n\u003cp\u003eThe breakout is slim enough to fit on a breadboard with 1 row of holes left over for wiring. There's 3.3v and 1.8v regulators onboard with ferrite beads and analog filtering for quality analog output. There's a microphone input port that you can wire up a line-in or mic to and record compressed audio. All 8 GPIO are broken out and they all have built in 100K pulldowns, simply connect your button from the GPIO pin to 3.3V for an active-high connection. You'll likely want to play music from a microSD card so we added a holder on-board. And since we know so many of our customers use 5V microcontrollers like the Arduino, we made the interface pins all 5V compliant with level shifters so you can use the chip at 3V or 5V power\/logic!\u003c\/p\u003e\n\u003cp\u003eEach order comes with a fully assembled and tested breakout board, some 0.1\" male header you can solder to the breakout so it plugs into a breadboard and a bonus stereo headphone jack that will be handy when you want to plug headphones in!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNew! As of Sept 24 2013, all orders will come with v2 which is nearly identical but now has 220uF stereo blocking capacitors on the output. This means you can plug the output into headphones or a stereo without risk of damage. Essentially we integrated the extra capacitors onto the PCB itself, saving you wiring and effort!\u003c\/strong\u003e If you have an older v1.0 which does not have the two big round silver capacitors on board, you can drive a pair of 30ohm headphones directly from the LOUT\/ROUT pins if the 'ground' connection is tied to GBUF however this is not a line-out connection. If you want to connect to a stereo system or powered speakers with a v1.0 board, fit the two included 100uF electrolytic caps in series on the LOUT\/ROUT pins between the breakout and the input of the stereo, then connect the common ground to AGND\u003c\/p\u003e\n\u003cp\u003eIf you just need loudspeakers, the \u003ca href=\"\/en-eu\/products\/adafruit-stereo-3-7w-class-d-audio-amplifier\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e3.7W stereo amp board\u003c\/a\u003e plus two 3W 4ohm speakers will give you lots of boom and you don't need any extra blocking caps because the amplifier has differential inputs.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-vs1053-mp3-aac-ogg-midi-wav-play-and-record-codec-tutorial\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the detailed tutorial \u0026amp; excellent Arduino library that demonstrates everything cool about this library: playing music off an SD card, using the GPIO pins as input\/outputs, playing music using an interrupt (so it's in the background), using the VS1053 as a MIDI synthesizer (no SD required), and recording Ogg vorbis audio from a microphone\/line-in to SD.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-vs1053-mp3-aac-ogg-midi-wav-play-and-record-codec-tutorial\/downloads-and-links\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheets, EagleCAD PCB files, and Fritzing object available in the product tutorial\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions: 27.72mm \/ 1.09\" x 58.08mm \/ 2.28\"\u003c\/p\u003e\n\u003cp\u003eRevision History:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUpdated to v4 on Sept 26, 2014 - we added a 1uF capacitor on the acap pin as recommended by the datasheet.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":411670081,"sku":"ADA1381","price":20.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1381-03_b59c12d9-c958-4cb1-9d3f-dd367e0c72b2.jpg?v=1576593399"},{"product_id":"adafruit-stereo-2-8w-class-d-audio-amplifier-i2c-control-agc","title":"Adafruit Stereo 2.8W Class D Audio Amplifier - I2C Control AGC","description":"\u003cp\u003eA mini class D with AGC and I2C control? Yes please! Able to deliver 2 x 2.8W channels into 4 ohm impedance speakers (@ 10% THD) it has an i2c control interface as well as an AGC (automatic gain control) system to keep your audio from clipping or distorting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003econtains a class D controller, able to run from 2.7V-5.5VDC.\u003c\/li\u003e\n\u003cli\u003eSince the amp is a class D, it's incredibly efficient (89% efficient when driving an 8Ω speaker at 1.5 Watt) - making it perfect for portable and battery-powered projects.\u003c\/li\u003e\n\u003cli\u003eOutput Power: 2.8W at 4Ω, 10% THD, 1.7W at 8Ω, 10% THD, with 5V Supply\u003c\/li\u003e\n\u003cli\u003ePSRR: 80 dB, 5ms startup time\u003c\/li\u003e\n\u003cli\u003eDesigned for use without an output filter, when wires are kept at under 2\"-4\" long\u003c\/li\u003e\n\u003cli\u003eI2C interface pins for setting gain, AGC configuration parameters, etc. See the tutorial for more details\u003c\/li\u003e\n\u003cli\u003eSelectable gain from -28dB to 30dB\u003c\/li\u003e\n\u003cli\u003eExcellent click-and-pop suppression\u003c\/li\u003e\n\u003cli\u003eThermal shutdown protection\u003c\/li\u003e\n\u003cli\u003eShutdown pin for power saving mode.\u003c\/li\u003e\n\u003cli\u003eLow current draw: 3.5mA quiescent and 0.2uA in shutdown mode\u003c\/li\u003e\n\u003cli\u003einputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the R- and L- to ground.\u003c\/li\u003e\n\u003cli\u003eoutputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground.\u003c\/li\u003e\n\u003cli\u003eThe output is a ~300KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003c\/p\u003e\n\u003cp\u003eIf you don't want to use I2C to control it, it does start up on with 6dB gain by default and the AGC set up for most music playing. We do suggest using it with a microcontroller to configure it, however, since its quite powerful. Settings are not stored in the chip, so you'll need to adjust any gain \u0026amp; AGC amplification settings every time the amp is powered up.\u003c\/p\u003e\n\u003cp\u003eComes with a fully assembled and tested breakout board with 1.0uF input capacitors. We also include 3.5mm screw-terminal blocks so you can easily attach\/detach your speakers, and some header in case you want to plug it into a breadboard. \u003cb\u003eSpeakers are not included, use any 4 ohm or 8 ohm impedance speakers - \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/3-speaker-4-3w\"\u003esomething like this, perhaps\u003c\/a\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-tpa2016-2-8w-agc-stereo-audio-amplifier\"\u003e \u003cb\u003eAdafruit's awesome tutorial and Arduino library will let you set the AGC configuration (you can also just turn it off), max gain, and turn on\/off the left \u0026amp; right channels all over I2C! You will be ready to rock in 20 minutes! \u003c\/b\u003e\u003c\/a\u003e\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-tpa2016-2-8w-agc-stereo-audio-amplifier\"\u003e \u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":549933533,"sku":"ADA1712","price":8.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1712.jpg?v=1392719136"},{"product_id":"adafruit-bone-conductor-transducer-with-wires-8-ohm-1-watt","title":"Bone Conductor Transducer with Wires - 8 Ohm 1 Watt","description":"\u003cp\u003eThis incredible speaker does not have a moving cone like most speakers you've seen, instead, a small metal rod is wrapped with the voice coil.\u003c\/p\u003e\n\u003cp\u003eWhen current is pulsed through the coil, the magnetic field causes a piece of metal to expand and contract - if pressed against a flat surface or cavity it turns it into a speaker!\u003c\/p\u003e\n\u003cp\u003eOften these size transducers are pressed up against the jaw or ear bone to turn the skull into a speaker cavity. The effect is a perfect quality sound that is coming from within your head that nobody else can hear. You can also press it against your elbow bone and stick a finger in your ear to hear the audio transmitted through your arm! Since no air is required, we've seen this kind of module covered in plastic so it can be used for waterproof 'underwater' headphones for swimmers. Other fun tricks you can try: press it against a table or wall to make a flat speaker, or at the end of a plastic cup to point sound in a particular direction.\u003c\/p\u003e\n\u003cp\u003eIf you plan to use the bone conduction transducer for prolonged direct contact with skin, we recommend that cover the transducer and wire connections with something like \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/sugru\"\u003eSugru\u003c\/a\u003e to prevent accidental shorting of driver current through the skin, due to sweat and electrolyte accumulation around the metal parts.\u003c\/p\u003e\n\u003cp\u003eThis transducer is lightweight and small and has 8 ohm impedence and should be run at about 1W. It pairs great with any of our audio amps such as the \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-stereo-2-8w-class-d-audio-amplifier-ts2012\"\u003eTS2012\u003c\/a\u003e breakout or \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-stereo-3-7w-class-d-audio-amplifier\"\u003eMAX98306\u003c\/a\u003e. Just connect it as you would any other speaker, we even have some wires pre-soldered on.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 14mm x 21.5mm \/ 0.6\" x .8\"\u003c\/li\u003e\n\u003cli\u003eWeight: 9.6g\u003c\/li\u003e\n\u003cli\u003ePower handling: 1 watt RMS\/2 watt max\u003c\/li\u003e\n\u003cli\u003eLe: 1.26 mH\u003c\/li\u003e\n\u003cli\u003eImpedance: 8 ohm\u003c\/li\u003e\n\u003cli\u003eRe: 5.8 ohms\u003c\/li\u003e\n\u003cli\u003eFrequency response: 300-19,000 Hz (but will vary with what you use as the transducer surface)\u003c\/li\u003e\n\u003cli\u003eFs: 1,600 Hz\u003c\/li\u003e\n\u003cli\u003eSPL: 90.1 dB 1W\/1m (but will vary with what you use as the transducer surface)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":555714645,"sku":"ADA1674","price":7.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1674.jpg?v=1392899622"},{"product_id":"adafruit-electret-microphone-amplifier-max9814-w-auto-gain-control","title":"Adafruit Electret Microphone Amplifier - MAX9814 w\/ Auto Gain Control","description":"\u003cp\u003eThis fancy microphone amplifier module is a step above the rest, with built in automatic gain control. The AGC in the amplifier means that nearby 'loud' sounds will be quieted so they don't overwhelm \u0026amp; 'clip' the amplifier, and even quiet, far-away sounds will be amplified.\u003c\/p\u003e\n\u003cp\u003eThis amplifier is great for when you want to record or detect audio in a setting where levels change and you don't want to have to tweak the amplifier gain all the time. \u003cbr\u003e\u003cbr\u003eThe chip at the heart of this amp is the \u003ca href=\"http:\/\/www.adafruit.com\/datasheets\/MAX9814.pdf\"\u003eMAX9814\u003c\/a\u003e, and has a few options you can configure with the breakout.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2; font-size: 14px;\"\u003eThe default 'max gain' is 60dB, but can be set to 40dB or 50dB by jumpering the Gain pin to VCC or ground.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2; font-size: 14px;\"\u003eYou can change the Attack\/Release ratio, from the default 1:4000 to 1:2000 or 1:500.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"line-height: 1.2; font-size: 14px;\"\u003eThe ouput from the amp is about 2Vpp max on a 1.25V DC bias, so it can be easily used with any Analog\/Digital converter that is up to 3.3V input. If you want to pipe it into a Line Input, just use a 1uF blocking capacitor in series. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003eFor audio-reactive projects, we suggest using an FFT driver library (such as the one in \u003ca href=\"http:\/\/learn.adafruit.com\/piccolo\"\u003ethis library\u003c\/a\u003e) which can take the audio input and 'translate' it into frequencies. If you just need to keep track of audio levels, see this \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-microphone-amplifier-breakout\/measuring-sound-levels\"\u003esound-level meter tutorial for Arduino\u003c\/a\u003e \u003cbr\u003e\u003cbr\u003eEach order comes with one assembled and tested board, with an \u003ca href=\"http:\/\/www.adafruit.com\/datasheets\/CMA-4544PF-W.pdf\"\u003eelectret mic\u003c\/a\u003e pre-soldered on, and a small piece of header. \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-agc-electret-microphone-amplifier-max9814\/\"\u003eAdafruits tutorial\u003c\/a\u003e will get you started with using and testing the microphone amplifier and you can check out their \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-microphone-amplifier-breakout\"\u003egeneral-purpose microphone amplifier tutorial for other project ideas and code. \u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":568716869,"sku":"ADA1713","price":6.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1713.jpg?v=1393423670"},{"product_id":"adafruit-stereo-20w-class-d-audio-amplifier-max9744","title":"Adafruit Stereo 20W Class D Audio Amplifier - MAX9744","description":"\u003cp\u003ePump up the volume with this 20W stereo amplifier! This slim little board has a class D amplifier onboard that can drive 2 channels of 4-8 ohm impedance speakers at 20W each.\u003c\/p\u003e\n\u003cp\u003ePower it with 5-12VDC using the onboard DC power jack and plug stereo line level into the 3.5mm stereo headphone jack and jam out with ease. Since it's class D, its completely cool-running, no heat sinks are required and it's extremely efficient - up to 93% efficiency makes it great for portable or battery powered rigs.\u003c\/p\u003e\n\u003cp\u003eWe like the MAX9744 amplifier at the heart of this board because its very easy to use, but it also has both analog and digital volume control capability. Use a single 1KΩ pot (included) to adjust volume analog-style. Or hook it up to your favorite microcontroller and send I2C commands to set 64-steps of volume amplification.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower from 4.5V-14V DC voltage\u003c\/li\u003e\n\u003cli\u003eUp to 93% efficient (88-93% typical)\u003c\/li\u003e\n\u003cli\u003e20mA quiescent current (or put into shutdown for 1uA quiescent)\u003c\/li\u003e\n\u003cli\u003eUp to 29.5dB max gain\u003c\/li\u003e\n\u003cli\u003eUse DC or AC coupled line-level input, up to 3Vpp\u003c\/li\u003e\n\u003cli\u003eFilterless Spread-Spectrum Modulation Lowers Radiated RF Emissions from Speaker Cables\u003c\/li\u003e\n\u003cli\u003e20W Stereo Output (4Ω, VDD = 12V, THD+N = 10%)\u003c\/li\u003e\n\u003cli\u003eLow 0.04% THD+N\u003c\/li\u003e\n\u003cli\u003eIntegrated Click-and-Pop Suppression\u003c\/li\u003e\n\u003cli\u003eShort-Circuit and Thermal-Overload Protection\u003c\/li\u003e\n\u003cli\u003eIncludes polarity-protection, jacks and terminal blocks, i2c level shifting, and a spot to solder in a volume pot.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach order comes with one MAX9744 breakout board with all surface-mount parts fully assembled and tested. Included are 3 x 2pin and 1 x 3pin terminal blocks, a 470uF power filter capacitor and 1KΩ trim pot.\u003c\/p\u003e\n\u003cp\u003eTo use this board, a little soldering is required to attach the terminal blocks and other components, but its fairly easy and expect it should take less than 15 minutes. Check out Adafruits \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-20w-stereo-audio-amplifier-class-d-max9744\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edetailed tutorial\u003c\/a\u003e for assembly instructions and overall usage\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":658832653,"sku":"ADA1752","price":16.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1752.jpg?v=1396434419"},{"product_id":"rca-to-screw-terminal-adaptor","title":"RCA to Screw Terminal Adaptor","description":"\u003cp\u003eIf you need to transmit video or audio from your project this little adaptor is ideal!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emale RCA connector on one end\u003c\/li\u003e\n\u003cli\u003escrew terminals on the other so no soldering required\u003c\/li\u003e\n\u003cli\u003escrew terminals clearly marked\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":665335097,"sku":"ADP012","price":1.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/RCA_adaptor.jpg?v=1396611753"},{"product_id":"adafruit-music-maker-mp3-shield-for-arduino-w-3w-stereo-amp","title":"Adafruit \"Music Maker\" MP3 Shield w\/3W Stereo Amp","description":"\u003cp\u003eBend all audio files to your will with the Adafruit Music Maker shield for Arduino!\u003c\/p\u003e\n\u003cp\u003eThis powerful shield features the VS1053, an encoding\/decoding (codec) chip that can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). It can also be used to record audio in both PCM (WAV) and compressed Ogg Vorbis. You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume digitally.\u003c\/p\u003e\n\u003cp\u003eAll this functionality is implemented in a light-weight SPI interface so that any Arduino can play audio from an SD card. There's also a special MIDI mode that you can boot the chip into that will read 'classic' 31250Kbaud MIDI data from an Arduino pin and act like a synth\/drum machine - there are dozens of built-in drum and sample effects! All of this bundled in a lovely shield, perfect for use with any Arduino Uno, Leonardo or Mega.\u003c\/p\u003e\n\u003cp\u003eThis version of the shield includes an onboard 3W\/channel stereo audio amplifier that can drive 4 or 8 ohm speakers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures the VS1053B codec chip - decodes Ogg Vorbis, MP3\/MP2\/MP1, MP4, AAC, WMA, FLAC, WAV\/PCM, MIDI. Encodes Ogg or WAV\/PCM\u003c\/li\u003e\n\u003cli\u003eStereo audio out with proper audio filter caps and ground reference so it can be safely connected directly to headphones, a stereo system or other powered speakers\u003c\/li\u003e\n\u003cli\u003e7 extra GPIO's that can be written or read through the Arduino Library for reading buttons or lighting LEDs\u003c\/li\u003e\n\u003cli\u003eMicroSD card socket, for any FAT16\/FAT32 formatted SD card from 64Mb or greater.\u003c\/li\u003e\n\u003cli\u003eFull 3.3\/5V level shifting for SD and MP3 chipsets\u003c\/li\u003e\n\u003cli\u003eWorks with Arduino Uno, Mega, or Leonardo\u003c\/li\u003e\n\u003cli\u003eBuilt in MIDI synth\/drum machine with dozens of instruments\u003c\/li\u003e\n\u003cli\u003ePlenty of optional breakouts for pins like the card-detect and microphone input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach order comes with one fully-assembled and tested shield, 2 2-pin terminal blocks, a stick of 0.1\" male header and 2x3 female header for the ICSP connection. Some light soldering is required to attach the through-hole headers to the PCB for plugging into the Arduino as well as the terminal blocks for the speakers. Speakers, $1 headphones, SD card and Arduino not included!\u003c\/p\u003e\n\u003cp\u003eCheck out Adafruits \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-vs1053-mp3-aac-ogg-midi-wav-play-and-record-codec-tutorial\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edetailed tutorial\u003c\/a\u003e with lots of information about the VS1053 as well as instructions for how to use our Arduino library that will get you playing sound effects in under 30 minutes\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":707241449,"sku":"ADA1788","price":28.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1788.jpg?v=1398346819"},{"product_id":"adafruit-audio-fx-sound-board-2x2w-amp-wav-ogg-trigger-2mb","title":"Adafruit Audio FX Sound Board - WAV\/OGG Trigger","description":"\u003cp\u003eAdd audio\/sound effects to your next project, without an Arduino+Shield!\u003c\/p\u003e\n\u003cp\u003eMaybe you aren't that comfortable with microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUNTIL NOW!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDon't get me wrong, we love the MP3 Music Maker shield, and Adafruits Wave Shield is a dependable classic. But you still need to get an Arduino involved. Enter the Adafruit Sound Board, the fastest way to add audio effects to a project!\u003c\/p\u003e\n\u003cp\u003eAvailable either with a 2 x 2W stereo class D amplifier or as a headphone out version for those who don't need the amplifier built in.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Arduino or other microcontroller required! \u003c\/strong\u003eIt is completely stand-alone, just needs a 3 to 5.5VDC battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall\u003c\/strong\u003e - only 1.9\" x 0.85\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt in storage\u003c\/strong\u003e - yep! you don't even need an SD card, there's either 2MB or 16MB of storage on the board itself depending on which version you go for. Good for a few minutes of compressed stereo, and maybe half a minute of uncompressed stereo. Double that if you go with mono instead of stereo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt in Mass Storage USB\u003c\/strong\u003e - Plug any micro USB cable into the Sound Board and your Windows computer, you can drag and drop your files right on as if it were a USB key\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressed or Uncompressed audio\u003c\/strong\u003e - Go with compressed Ogg Vorbis files for longer audio files, or uncompressed WAV files\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Quality Sound\u003c\/strong\u003e - You want 44.1KHz 16 bit stereo? Not a problem! The decoding hardware can handle any bit\/sample rate and mono or stereo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive different trigger effects\u003c\/strong\u003e - by changing the name of the files, you can create five different types of triggers which will cover a large range of projects \u003cem\u003ewithout\u003c\/em\u003e any programming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11 Triggers\u003c\/strong\u003e - Connect up to 11 buttons or switches, each one can trigger audio files to play\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes in two variants\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 x 2W Class D Amplifier\u003c\/strong\u003e - Get booming instantly, optional baked in stereo amplifier that can drive 4-8 ohm speakers, up to 2.2W with only 1% distortion. In addition we breakout the line out levels so you can connect up headphones if desired\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo line out\u003c\/strong\u003e\u003cspan\u003e - Headphones, powered speakers or even wire up one of our amplifiers to make loud sounds.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat do we mean by trigger effects? Well, depending on your project you may need to have audio play in different ways. Adafruit thought of the five most common needs and built it into the Sound Board so you just rename the file to get the effect you want. \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-audio-fx-sound-board\/triggering-audio\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eSee the product tutorial for more details\u003c\/a\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Trigger\u003c\/strong\u003e - name the file Tnn.WAV or Tnn.OGG to have the audio file play when the matching trigger pin nn is connected to ground momentarily\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold Looping Trigger\u003c\/strong\u003e - name the file TnnHOLDL.WAV or .OGG to have the audio play only when the trigger pin is held low, it will loop until the pin is released\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatching Loop Trigger\u003c\/strong\u003e - name the file TnnLATCH.WAV or .OGG to have the audio start playing when the button is pressed momentarily, and repeats until the button is pressed again\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlay Next Trigger\u003c\/strong\u003e - have up to 10 files play one after the other by naming them TnnNEXT0.WAV thru TnnNEXT9.OGG. Will start with #0 and each one on every momentary button press until it gets through all of them, then go back to #0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlay Random Trigger\u003c\/strong\u003e - just like the Play Next trigger, but will play up to 10 files in random order (TnnRAND0.OGG thru TnnRAND9.OGG) every time the button is pressed momentarily\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThis product includes the Audio FX sound board, header strip, and two 2-pin terminal blocks.\u003cstrong\u003e \u003c\/strong\u003eIt \u003cstrong\u003edoes not\u003c\/strong\u003e include batteries, speakers, breadboard, or tactile switches.\u003c\/p\u003e\n\u003cp\u003eThe sound board is designed to be simple: it does not have polyphonic ability, can't play MP3's (MP3 is patented and costs $ to license, so this board uses the similar but not-patented OGG format, there's tons of free converters that will turn an MP3 into OGG), isn't reprogrammable or scriptable, and you can't have any other kind of trigger type. However, there's a good chance the project you want to make will work great.\u003c\/p\u003e\n\u003cp\u003eAdafruit designed this board specifically for people who wanted to make props, costumes, toys, and other small portable projects. Check out the \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-audio-fx-sound-board\/triggering-audio\" rel=\"noopener noreferrer\" target=\"_blank\"\u003etutorial\u003c\/a\u003e for all the powering options, you can power from 3-5VDC so a 3xAAA battery pack or a LiPoly battery will work well.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003cspan\u003e The terminal blocks included with your product may be blue or black.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: 23mm x 51mm x 3mm \/ 0.9\" x 2\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eWeight: 4.9g\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-audio-fx-sound-board\/downloads\" target=\"\"\u003eDatasheets, PCB files, and Fritzing object available from tutorial downloads page\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\u003cb\u003eAs of Aug 22, 2023\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e– we've updated this PCB with \u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_Pinguin\"\u003eAdafruit Pinguin\u003c\/a\u003e to make a lovely and legible silkscreen.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of June 14, 2017\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewe're setting the gain of the amplifier to 6dB as some people accidentally blew out the amplifier. If you cannot normalize your audio to be louder you can remove the solder jumper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cimg src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2011_65_EU.svg\" alt=\"RoHS 2 2011 65 EU Compliant\" width=\"145\" height=\"80\"\u003e\u003cimg src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2015_863_EU.svg\" alt=\"RoHS 2 2015 863 EU Compliant\" width=\"145\" height=\"80\"\u003e\n\u003ch2\u003eLearn\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-audio-fx-sound-board\"\u003eAdafruit Audio FX Sound Board\u003c\/a\u003e\nAll about our great new audio trigger board\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/products\/2217\/guides\" target=\"_blank\" rel=\"noopener\"\u003eSee All Guides\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"2MB storage with 2.2W Stereo Amp","offer_id":972768365,"sku":"ADA2210","price":20.0,"currency_code":"GBP","in_stock":true},{"title":"2MB storage - Headphone out only","offer_id":972768369,"sku":"ADA2133","price":15.75,"currency_code":"GBP","in_stock":true},{"title":"16MB storage with 2x2W Amp","offer_id":999509585,"sku":"ADA2217","price":23.5,"currency_code":"GBP","in_stock":true},{"title":"16MB storage - Headphone out only","offer_id":989597153,"sku":"ADA2220","price":19.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/2217-06.jpg?v=1772118241"},{"product_id":"5w-4-ohm-65mm-full-range-speaker","title":"5W 4 Ohm 65mm Full Range Speaker","description":"\u003cp\u003eThis is a high quality 6.5 cm (2.5\") full-range 4 ohm speaker with minimal mounting depth and small magnet.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBalanced frequency response and high efficiency.\u003c\/li\u003e\n\u003cli\u003eVery good high range response.\u003c\/li\u003e\n\u003cli\u003eSuitable in machines and other equipment where space is at a premium.\u003c\/li\u003e\n\u003cli\u003eThe sound quality from this speaker is excellent and is ideal for many audio applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAttributes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMoisturised cone\u003c\/li\u003e\n\u003cli\u003eMetal basket\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eTechnical spec:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"1\" cellpadding=\"2\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eVisaton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eManufacturer part number\u003c\/td\u003e\n\u003ctd\u003eFR 7 4 OHM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eRated power\u003c\/td\u003e\n\u003ctd\u003e5 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eMaximum power\u003c\/td\u003e\n\u003ctd\u003e10 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eNominal impedance Z\u003c\/td\u003e\n\u003ctd\u003e4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eFrequency response\u003c\/td\u003e\n\u003ctd\u003e\n\u003cspan\u003e130 to 20000\u003c\/span\u003eHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eMean sound pressure level\u003c\/td\u003e\n\u003ctd\u003e86 dB (1W\/1m)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eOpening angle (-6 dB)\u003c\/td\u003e\n\u003ctd\u003e86\/4000Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eHeight of front pole-plate\u003c\/td\u003e\n\u003ctd\u003e2,5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eVoice coil diameter\u003c\/td\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eHeight of winding\u003c\/td\u003e\n\u003ctd\u003e2,5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eCut-out diameter\u003c\/td\u003e\n\u003ctd\u003e61 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eNet weight\u003c\/td\u003e\n\u003ctd\u003e0,092 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eD.C. resistance Rdc\u003c\/td\u003e\n\u003ctd\u003e3,4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eMechanical Q factor Qms\u003c\/td\u003e\n\u003ctd\u003e7.05\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eElectrical Q factor Qes\u003c\/td\u003e\n\u003ctd\u003e3,61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eTotal Q factor Qts\u003c\/td\u003e\n\u003ctd\u003e2,39\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eInductance of the voice coil L\u003c\/td\u003e\n\u003ctd\u003e0,1 mH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr class=\"techdat\"\u003e\n\u003ctd align=\"left\"\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-25 ... 70 C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Kitronik","offers":[{"title":"Default Title","offer_id":1014454121,"sku":"KIT-3315","price":5.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3315_large_5w_65cm_full_range_4ohm_speaker_12bb796e-1c7b-43c8-9ee9-5f67e706578f.jpg?v=1418915808"},{"product_id":"adafruit-audio-fx-mini-sound-board-wav-ogg-trigger","title":"Adafruit Audio FX Mini Sound Board - WAV\/OGG Trigger","description":"\u003cp\u003eWould you like to add audio\/sound effects to your next project, without an Arduino+Shield?\u003c\/p\u003e\n\u003cp\u003eOr maybe you don't even know how to use microcontrollers, you just want to make a sound play whenever you press a button. What about something that has to be very small and portable? You are probably feeling a little frustrated: it's been very hard to find a simple, low cost audio effects trigger that is easy to use and does not require any programming\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUNTIL NOW!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDon't get me wrong, I love the MP3 Music Maker shield and the Audio \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-audio-fx-sound-board-2x2w-amp-wav-ogg-trigger-2mb\"\u003eFX Sound Board + 2x2W Amp\u003c\/a\u003e. But you either need an Arduino or they might be a little too big and powerful for your needs.  So after a lot of engineering and tinkering Adafruit have come out with the Adafruit \u003cstrong\u003eMINI\u003c\/strong\u003e Sound Board, the fastest way to add audio effects to a project, with a small footprint. We think this is the best sound board for props and costumes!\u003c\/p\u003e\n\u003cdiv class=\"row-fluid build-text\"\u003e\n\u003cp\u003eThe Sound Board has a lot of amazing features that make it the easiest thing ever:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Arduino or other microcontroller required! \u003c\/strong\u003eIt is completely stand-alone, just needs a 3 to 5.5VDC battery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall\u003c\/strong\u003e - only 1.5\" x 0.9\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt in storage\u003c\/strong\u003e - yep! you don't even need an SD card, there's storage on the board itself. |Available with with either \u003cstrong\u003e16MB\u003c\/strong\u003e (good for ~15 minutes of compressed stereo, and maybe a couple minutes of uncompressed stereo) or \u003cstrong\u003e2MB \u003c\/strong\u003e(g\u003cspan\u003eood for a few minutes of compressed stereo, and maybe half a minute of uncompressed stereo).\u003c\/span\u003e Double that if you go with mono instead of stereo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt in Mass Storage USB\u003c\/strong\u003e - Plug any micro USB cable into the Sound Board and your Windows computer, you can drag and drop your files right on as if it were a USB key\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompressed or Uncompressed audio\u003c\/strong\u003e - Go with compressed Ogg Vorbis files for longer audio files, or uncompressed WAV files\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Quality Sound\u003c\/strong\u003e - You want 44.1KHz 16 bit stereo? Not a problem! The decoding hardware can handle any bit\/sample rate and mono or stereo\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 Triggers\u003c\/strong\u003e - Connect up to 8 buttons or switches, each one can trigger audio files to play\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo line out\u003c\/strong\u003e - Headphones, powered speakers or even wire up one of our amplifiers to make loud sounds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFive different trigger effects\u003c\/strong\u003e - by changing the name of the files, you can create five different types of triggers which will cover a large range of projects \u003cem\u003ewithout\u003c\/em\u003e any programming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl over UART\u003c\/strong\u003e (9600 Baud) via any microcontroller, we have an Arduino Library for basic control over playback and volume.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhat do we mean by trigger effects? Well, depending on your project you may need to have audio play in different ways. We thought of the five most common needs and built it into the Sound Board so you just rename the file to get the effect you want. \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-audio-fx-sound-board\/triggering-audio\" target=\"_blank\"\u003eSee the product tutorial for more details\u003c\/a\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBasic Trigger\u003c\/strong\u003e - name the file Tnn.WAV or Tnn.OGG to have the audio file play when the matching trigger pin nn is connected to ground momentarily\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold Looping Trigger\u003c\/strong\u003e - name the file TnnHOLDL.WAV or .OGG to have the audio play only when the trigger pin is held low, it will loop until the pin is released\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatching Loop Trigger\u003c\/strong\u003e - name the file TnnLATCH.WAV or .OGG to have the audio start playing when the button is pressed momentarily, and repeats until the button is pressed again\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlay Next Trigger\u003c\/strong\u003e - have up to 10 files play one after the other by naming them TnnNEXT0.WAV thru TnnNEXT9.OGG. Will start with #0 and each one on every momentary button press until it gets through all of them, then go back to #0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlay Random Trigger\u003c\/strong\u003e - just like the Play Next trigger, but will play up to 10 files in random order (TnnRAND0.OGG thru TnnRAND9.OGG) every time the button is pressed momentarily\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eThe sound board is designed to be simple: it does not have polyphonic ability, can't play MP3's (MP3 is patented and costs $ to license, so this board uses the similar but not-patented OGG format, there's tons of free converters that will turn an MP3 into OGG), isn't reprogrammable or scriptable, and you can't have any other kind of trigger type. However, there's a good chance the project you want to make will work great.\u003c\/p\u003e\n\u003cp\u003eAdafruit designed this board specifically for people who wanted to make props, costumes, toys, and other small portable projects. Check out the tutorial for all the powering options, you can power from 3-5VDC so a 3xAAA battery pack or a LiPoly battery will work well.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"16MB","offer_id":1107534013,"sku":"ADA2341","price":16.25,"currency_code":"GBP","in_stock":true},{"title":"2MB","offer_id":1107534017,"sku":"ADA2342","price":12.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2341.jpg?v=1425569090"},{"product_id":"pi-dac","title":"IQaudio DAC+","description":"\u003cp\u003eThe de-facto audiophile DAC for the Raspberry Pi. This latest revision of our Pi-DAC+ is pre-programmed for auto detection and exposes the full Raspberry Pi GPIO header providing easy access for buttons, sensors, screens etc.\u003c\/p\u003e\n\u003cp\u003eThe Pi-DAC+ Rev4 plugs directly on the Raspberry Pi, there’s no need to solder or modify your Raspberry Pi and you can be enjoying Full HD audio in minutes. With a pre-programmed HAT EEPROM it'll also auto configure itself in Raspberry Pi OS with zero user effort.\u003c\/p\u003e\n\u003cp\u003eThe Pi-DAC+ feature the great Texas Instruments PCM5122 DAC and also includes a dedicated headphone amplifier delivering a complete all-in one Full HD audio experience for those who listen through headphones. Volume control is built in, eliminating the need for software volume controls of some other audio accessories.\u003c\/p\u003e\n\u003cp\u003eA fully HAT compliant Raspberry Pi expansion board with Pre-programmed EEPROM support, the Pi-DAC+ delivers Full HD audio from your Raspberry Pi.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi HAT (A+\/B+\/2\/3\/3B+\/4) compliant accessory\u003c\/li\u003e\n\u003cli\u003ePre-programmed EEPROM for auto configuration\u003c\/li\u003e\n\u003cli\u003eFull-HD Linux audio – up to 24-bit\/192kHz playback\u003c\/li\u003e\n\u003cli\u003eIntegrated hardware volume control (via ALSA), full 2v RMS\u003c\/li\u003e\n\u003cli\u003eBuilt in high quality audio headphone amplifier (TI TPA6133A)\u003c\/li\u003e\n\u003cli\u003eClass leading audio; 112db SNR, and -93db THD\u003c\/li\u003e\n\u003cli\u003eAudiophile TI Burr Brown 32-bit\/384kHz DAC (TI PCM5122)\u003c\/li\u003e\n\u003cli\u003eAdvanced ESD protection\u003c\/li\u003e\n\u003cli\u003eDigital I2S audio signals\u003c\/li\u003e\n\u003cli\u003eRaspberry Pi powered, no external power requirements\u003c\/li\u003e\n\u003cli\u003eIndustry standard audio quality Phono\/RCA connectors\u003c\/li\u003e\n\u003cli\u003eFull GPIO access with no soldering required\u003c\/li\u003e\n\u003cli\u003eFully built and tested Raspberry Pi accessory\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured in the UK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse raw Linux, \u003ca title=\"Volumio - A REVOLUTIONARY AUDIOPHILE MUSIC PLAYER\" href=\"http:\/\/volumio.org\/\" target=\"_blank\"\u003eVolumio\u003c\/a\u003e, \u003ca title=\"RuneAudio - A REVOLUTIONARY DIGITAL HI-FI PLAYER\" href=\"http:\/\/www.runeaudio.com\/\" target=\"_blank\"\u003eRuneAudio\u003c\/a\u003e, \u003ca title=\"Squeezeplug\" href=\"http:\/\/www.squeezeplug.de\/\" target=\"_blank\"\u003eSqueezePlug\u003c\/a\u003e, \u003ca title=\"PiCorePlayer News\" href=\"https:\/\/sites.google.com\/site\/picoreplayer\/home\/news\" target=\"_blank\"\u003ePiCorePlayer\u003c\/a\u003e, PiMusicBox, AirplaySync, MDP or similar and listen to internet radio, your own digital music library, or streaming music services such as Spotify – all in magnificent audio quality. The IQaudIO Pi-DAC+ easily supports 24-bit \/ 192kHz file formats but is equally at home with lower quality MP3s bringing your music alive sonically.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note:\u003c\/strong\u003e this product is the Pi-DAC+ on its own without any bolts or spacers.\u003c\/p\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cp\u003eYou can download the IQAudIO user guide \u003ca href=\"https:\/\/github.com\/iqaudio\/UserDocs\/raw\/master\/userguide.pdf\" target=\"_blank\"\u003ehere\u003c\/a\u003e and some useful tools \u003ca href=\"https:\/\/github.com\/iqaudio\/tools\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"IQaudIO","offers":[{"title":"Default Title","offer_id":2174946177,"sku":"SC0368","price":19.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/PiDAC.jpg?v=1628854551"},{"product_id":"pi-digiamp","title":"IQaudio DigiAMP+","description":"\u003cp\u003eThe de-facto audiophile DAC\/AMP for the Raspberry Pi. This latest revision of the Pi-DigiAMP+ has pre-programmed EEPROM and exposes the full Raspberry Pi GPIO header. It also supports voltage input up to 24v and delivers the full 2.5amp to the Pi.\u003c\/p\u003e\n\u003cp\u003eNO SOLDERING REQUIRED, simply “FIT AND ENJOY.”\u003c\/p\u003e\n\u003cp\u003eDesigned to deliver the best audio performance from the Raspberry Pi A+\/B+\/RPi2\/3\/3B+\/4, fit within the Pi’s form factor and provide additional full access to the Pi’s 40way I\/O signals allowing easy addition of IR sensors, Rotary Encoder or i2c devices (such as OLED screens) etc.\u003c\/p\u003e\n\u003cp\u003eThe new Pi-DigiAMP+ retains the Texas Instruments chipset (TAS5756m), maintaining full software compatibility. Added to that this version comes with a pre-programmed EEPROM allowing Raspberry Pi OS to auto configure itself including unmoving the audio signals at startup.\u003c\/p\u003e\n\u003cp\u003eSupported by the many software audio packages already on the market. Roon Labs \/ Volumio \/ MoodeAudio \/ PiCorePlayer \/ PiMusicBox \/ OpenELEC and others. The IQaudIO Pi-DigiAMP+ supports up to 24-bit \/ 192kHz file formats but is equally at home with lower quality MP3s bringing your music alive sonically.\u003c\/p\u003e\n\u003cp\u003eThe IQaudIO Pi-DigiAMP+ connects easily to the Raspberry Pi and provides up to 2 x 35W stereo output to speakers.\u003c\/p\u003e\n\u003ch2\u003eFeatures:\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFull-HD audio – up to 24-bit\/192kHz playback\u003c\/li\u003e\n\u003cli\u003eUp to 2x35w of crystal clear amplification\u003c\/li\u003e\n\u003cli\u003ePre-programmed EEPROM for auto configuration\u003c\/li\u003e\n\u003cli\u003eIntegrated hardware volume control (via ALSA)\u003c\/li\u003e\n\u003cli\u003ePowers the Raspberry Pi from the Pi-DigiAMP+ power input\u003c\/li\u003e\n\u003cli\u003eLinux driver support already delivered within Raspberry Pi OS\u003c\/li\u003e\n\u003cli\u003eAdvanced ESD protection\u003c\/li\u003e\n\u003cli\u003eUses the digital I2S audio signals\u003c\/li\u003e\n\u003cli\u003eSupports up to 24v input\u003c\/li\u003e\n\u003cli\u003eDelivers full 2.5amp to the Pi, supports screens \u0026amp; USB devices in parallel\u003c\/li\u003e\n\u003cli\u003eFull GPIO access with no soldering required\u003c\/li\u003e\n\u003cli\u003eFully built and tested Raspberry Pi accessory\u003c\/li\u003e\n\u003cli\u003eDesigned and manufactured in the UK\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe IQaudIO Pi-DigiAMP+ is suitable for the latest Raspberry Pi A+\/B+, RPi2, RPi3+ and 4 - it is not compatible with much older Raspberry Pi A and B Models.\u003c\/p\u003e\n\u003cp\u003eThe Pi-DigiAMP+ is supplied with all mounting hardware.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE: The Pi-DigiAMP+ requires an external power supply \/ brick, and when powered the Pi-DigiAMP+ provides power to your Raspberry Pi in parallel.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cp\u003eYou can download the IQAudIO user guide \u003ca href=\"https:\/\/github.com\/iqaudio\/UserDocs\/raw\/master\/userguide.pdf\" target=\"_blank\"\u003ehere\u003c\/a\u003e and some useful tools \u003ca href=\"https:\/\/github.com\/iqaudio\/tools\" target=\"_blank\"\u003ehere\u003c\/a\u003e.\u003c\/p\u003e","brand":"IQaudIO","offers":[{"title":"Default Title","offer_id":4584804609,"sku":"SC0370","price":28.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/PiDACDigiAMP.jpg?v=1607350528"},{"product_id":"piano-hat","title":"Piano HAT","description":"\u003cp\u003eUnlock your inner Mozart with Piano HAT, a mini musical companion for your Raspberry Pi!\u003c\/p\u003e\n\u003cp\u003ePiano HAT is inspired by Zachary Igielman's PiPiano and made with his blessing. We've taken his fabulous idea for a dinky piano add-on for the Raspberry Pi, made it touch-sensitive and added barrels of our trademark Pimoroni polish.\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003ePlay music in Python, control software synths on your Pi, and take control of hardware synthesizers!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.recantha.co.uk\/blog\/?p=13187\"\u003eMichael Horne\u003c\/a\u003e said \u003cem\u003e\"The Piano HAT is, as far as electronics goes, a work of art. It looks slick, feels slick and, with the software library included, acts slick.\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.raspberrypi.org\/magpi-issues\/MagPi38.pdf\"\u003eThe MagPi\u003c\/a\u003e said Piano HAT was \u003cem\u003e\"a great way to unleash your ivory-tinkling tendencies\"\u003c\/em\u003e \u003ca href=\"https:\/\/www.raspberrypi.org\/magpi-issues\/MagPi37.pdf\"\u003eand\u003c\/a\u003e \u003cem\u003e\"a board \u003c\/em\u003e\u003cem\u003efor musical adventures\"\u003c\/em\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e16 capacitive touch pads (link each to their own Python function!)\u003c\/li\u003e\n\u003cli\u003e13 piano keys (a full octave)\u003c\/li\u003e\n\u003cli\u003eOctave up\/down buttons\u003c\/li\u003e\n\u003cli\u003eInstrument cycle button (great for use with synthesizers)\u003c\/li\u003e\n\u003cli\u003e16 bright white LEDs (let them light automagically, or take control with Python)\u003c\/li\u003e\n\u003cli\u003e2x Microchip CAP1188 capacitive touch driver chips\u003c\/li\u003e\n\u003cli\u003eUse it to control software or hardware synths over MIDI\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinout.xyz\/pinout\/piano_hat\"\u003ePiano 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\/Piano-HAT\"\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 an ever-so-thorough \u003ca href=\"https:\/\/github.com\/pimoroni\/Piano-HAT\"\u003ePython library\u003c\/a\u003e to control Piano HAT, with a bunch of nifty examples to let you explore its functionality.\u003c\/p\u003e\n\u003cp\u003eThere's a learn to play example that let's you play along as Piano HAT's LEDs show you which keys to press. In no time, you'll be a Chopin for the 21st century.\u003c\/p\u003e\n\u003cp\u003eWe've included a MIDI example that lets you play music with \u003ca href=\"http:\/\/www.warmplace.ru\/soft\/sunvox\/\"\u003eSunvox,\u003c\/a\u003e \u003ca href=\"http:\/\/yoshimi.sourceforge.net\/\"\u003eYoshimi\u003c\/a\u003e and other software synths, a PyGame example with glorious piano and drum samples and even a true 8-bit synth written in pure Python!\u003c\/p\u003e\n\u003cp\u003eYou can even make Piano HAT output regular MIDI commands via a USB to MIDI adapter and use Piano HAT as a tiny, cheap MIDI controller for your Minimoog Model D (you have one right?).\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":5199242241,"sku":"PIM095","price":15.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Piano_HAT_4_of_4.JPG?v=1438331603"},{"product_id":"sparkfun-audio-jack-breakout","title":"SparkFun Audio Jack Breakout","description":"\u003cp\u003eSimple breakout board for the 3.5mm audio jack.\u003c\/p\u003e\n\u003cp\u003eUse this breakout (shipped bare) to allow breadboard or SIP access to the super-common 3.5mm audio jack. All five pins are broken out.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eNote: \u003c\/strong\u003e\u003c\/strong\u003eYou get the bare PCB only!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Prototyping\/SparkFun_Audio_Jack_Breakout.pdf\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Prototyping\/SparkFun_Audio_Jack_Breakout.zip\" target=\"_blank\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/Audio_Jack_Breakout\/tree\/V_1.2\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":7355424577,"sku":"PRT-10588","price":1.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/10588-01a.jpg?v=1445001084"},{"product_id":"speaker-pcb-mount","title":"Speaker - PCB Mount","description":"\u003cp\u003eThis through-hole speaker is great for projects where you need something that sounds better than a piezo buzzer but don’t have room for a full-blown speaker.\u003c\/p\u003e\n\u003cp\u003eThis 30mm diameter speaker is encased in plastic and will handle about 100mW of power.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e8 ohm\u003c\/li\u003e\n\u003cli\u003e0.1W (0.2W max)\u003c\/li\u003e\n\u003cli\u003e30mm diameter\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\/Components\/General\/PCBspeaker.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/sparkfun.com\/videos#all\/nCsdXSjavqE\/179\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eProduct Video\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":7399580737,"sku":"COM-11089","price":1.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/11089-01.jpg?v=1445103771"},{"product_id":"adafruit-silicon-mems-microphone-breakout-spw2430","title":"Adafruit Silicon MEMS Microphone Breakout - SPW2430","description":"\u003cp\u003eListen to this good news - we now have a breakout board for a super tiny MEMS microphone!\u003c\/p\u003e\n\u003cp\u003eJust like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they don't need a bias resistor or amplifier, its all in one! The SPW2430 is a small, low cost MEMS mic with a range of 100Hz - 10KHz, good for just about all general audio recording\/detection.\u003cbr\u003e\u003cbr\u003eThis breakout is best used for projects such as voice changers, audio recording\/sampling, and audio-reactive projects that use FFT. To keep the breakout small and simple, we only added a 3V voltage regulator (the microphone requires 3.3V DC) and filter capacitors. No additional opamp is included, the output peak-to-peak voltage has a 0.67V DC bias and about 100mVpp (peak-to-peak) when talking near the microphone, which is good for attaching to something that expects 'line level' input without clipping. The peak-to-peak can be as high as 1Vpp if there's a very loud sound. If you are If you need a \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-electret-microphone-amplifier\" target=\"_blank\"\u003emicrophone with adjustable gain\u003c\/a\u003e or \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-electret-microphone-amplifier-max9814-w-auto-gain-control\" target=\"_blank\"\u003eauto-gain control\u003c\/a\u003e, check out our mic+amplifier options. If you need a higher peak-to-peak, a rail-to-rail op-amp and \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Operational_amplifier_applications#Non-inverting_amplifier\" target=\"_blank\"\u003esome resistors can get you boosted up\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003eUsing it is simple: connect GND to ground, Vin to 3.3-5VDC. For the best performance, use the \"quietest\" supply available (on an Arduino, this would be the 3.3V supply). The audio waveform will come out of the \u003cstrong\u003eDC\u003c\/strong\u003e pin. The output will have a DC bias of 0.67V so when its perfectly quiet that's what you'll read, there's a little drift. If the audio equipment you're using requires AC coupled audio, you can grab the signal out of the \u003cstrong\u003eAC\u003c\/strong\u003e pin, which has a 10uF capacitor in series.\u003cbr\u003e\u003cbr\u003eThe output pin is not designed to drive speakers or anything but the smallest in-ear headphones - you'll need \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/adafruit-stereo-3-7w-class-d-audio-amplifier\" target=\"_blank\"\u003ean audio amplifier (such as our 3.7W stereo amp) if you want to connect the amp directly to speakers\u003c\/a\u003e. If you're connecting to a microcontroller pin, you don't need an amplifier or decoupling capacitor - connect the \u003cstrong\u003eDC\u003c\/strong\u003e pin directly to the microcontroller ADC pin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWeight: 0.9g\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 15.8mm x 14.1mm x 2.9mm \/ 0.6\" x 0.6\" x 0.1\"\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":7461583617,"sku":"ADA2716","price":4.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2716.jpg?v=1445266649"},{"product_id":"audio-jack-1-4-stereo-right-angle","title":"Audio Jack - 1\/4\" Stereo (right angle)","description":"\u003cp\u003eThis is the kind of ¼\" stereo jack you might find in home stereos and PA systems. Switched contacts allow you to detect whether or not there is something plugged in to the jack. The jack can be panel mounted in an 11mm diameter hole.\u003c\/p\u003e\n\u003cp\u003eThe jack comes with a plastic washer and nut for panel mounting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Looking for a breakout to hook this audio jack up to your project a little easier? Check out the \u003ca href=\"SparkFun%20TRS%20Jack%20Breakout%20-%201\/4%22%20Stereo\" target=\"_blank\"\u003eSparkFun TRS Jack Breakout\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"http:\/\/cdn.sparkfun.com\/datasheets\/Components\/General\/JP-611%20DD.jpg\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e (JP-611)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":7571602561,"sku":"COM-11144","price":1.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/11144-01.jpg?v=1445608187"},{"product_id":"audio-adapter-board-for-teensy-3-0-3-1","title":"Audio Adaptor Board for Teensy 3.0 - 3.6","description":"\u003cp\u003eThis audio adaptor lets you easily add high quality 16 bit, 44.1 kHz sample rate (CD quality) audio to your projects with Teensy 3.0, 3.1, 3.2, 3.5, 3.6 (Rev C).\u003c\/p\u003e\n\u003cp\u003eIt supports stereo headphone and stereo line-level output, and also stereo line-level input or mono microphone input.\u003c\/p\u003e\n\u003cp\u003eIn September 2019, \u003ca href=\"\/en-eu\/products\/audio-adaptor-board-for-teensy-4-0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRev D was created for Teensy 4.0\u003c\/a\u003e. The circuitry is the same as Rev C, but the I2S digital audio signals and SPI signals for the SD card are routed to the pins Teensy 4.0 uses.\u003c\/p\u003e\n\u003cp\u003eThe \u003ca href=\"http:\/\/www.pjrc.com\/teensy\/td_libs_Audio.html\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eTeensy Audio Library\u003c\/a\u003e lets you use the input and output simultaneously together with a toolkit of audio processing objects, to easily create all types of sophisticated audio applications. You can play multiple sound files, create synthesized waveforms, apply effects, mix multiple streams and output high quality audio to the headphones or line out pins.\u003c\/p\u003e\n\u003cp\u003eTeensy 3.x have the Cortex-M4 DSP instructions which provide plenty of computational power for real-time FFT (spectrum analysis), opening up the possibility of creating advanced sound-reactive projects.\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eTeensy 3.x Pins\u003cbr\u003eRev C\u003c\/th\u003e\n\u003cth\u003eShareable\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Data\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e9, 11, 13, 22, 23\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAudio Control\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e18, 19\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eSDA, SCL \u003csmall\u003e(other I2C chips)\u003c\/small\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVolume Pot\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e15 (A1)\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e-\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSD Card\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e7, 10, 12, 14\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eMOSI, MISO, SCK \u003csmall\u003e(other SPI chips)\u003c\/small\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMemory Chip\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e6, 7, 12, 14\u003c\/td\u003e\n\u003ctd align=\"center\"\u003eMOSI, MISO, SCK \u003csmall\u003e(other SPI chips)\u003c\/small\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/forum.pjrc.com\/threads\/35021-Audio-board-mechanical-drawing\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eMechanical drawing and Eagle library\u003c\/a\u003e.\u003cbr\u003e\u003ca href=\"https:\/\/forum.pjrc.com\/threads\/35056-ap7313-voltage-regulator-on-audio-board?p=107595\u0026amp;viewfull=1#post107595\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEstimated power consumption\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eSignals to Teensy\u003c\/h2\u003e\n\u003cp\u003eThe audio chip, part number \u003ca href=\"https:\/\/www.pjrc.com\/teensy\/SGTL5000.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSGTL5000\u003c\/a\u003e, connects to Teensy using 7 signals. The I2C pins SDA and SCL are used to control the chip and adjust parameters. Audio data uses I2S signals, TX (to headphones and\/or line out) and RX (from line in or mic), and 3 clocks, LRCLK (44.1 kHz), BCLK (1.41 MHz) and MCLK (11.29 MHz). All 3 clocks are created by Teensy3. The SGTL5000 operates in \"slave mode\", where all its clock pins are inputs.\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSignal\u003c\/th\u003e\n\u003cth\u003eRev C\u003cbr\u003e\u003csmall\u003eTeensy 3.x\u003c\/small\u003e\n\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCLK\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e11\u003c\/td\u003e\n\u003ctd\u003eAudio Master Clock, 11.29 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBCLK\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e9\u003c\/td\u003e\n\u003ctd\u003eAudio Bit Clock, 1.41 or 2.82 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLRCLK\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e23\u003c\/td\u003e\n\u003ctd\u003eAudio Left\/Right Clock, 44.1 kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDIN\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e22\u003c\/td\u003e\n\u003ctd\u003eAudio Data from Teensy to Audio Shield\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDOUT\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e13\u003c\/td\u003e\n\u003ctd\u003eAudio Data from Audio Shield to Teensy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSCL\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e19\u003c\/td\u003e\n\u003ctd\u003eControl Clock (I2C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSDA\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e18\u003c\/td\u003e\n\u003ctd\u003eControl Data (I2C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSCK\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e14\u003c\/td\u003e\n\u003ctd\u003eData Storage (SPI) Clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMISO\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e12\u003c\/td\u003e\n\u003ctd\u003eData Storage (SPI) from SD\/MEM to Teensy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMOSI\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e7\u003c\/td\u003e\n\u003ctd\u003eData Storage (SPI) from Teensy to SD\/MEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSDCS\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e10\u003c\/td\u003e\n\u003ctd\u003eChip Select (SPI) for SD Card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMEMCS\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e6\u003c\/td\u003e\n\u003ctd\u003eChip Select (SPI) for Memory Chip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVol\u003c\/td\u003e\n\u003ctd align=\"center\"\u003e15 \/ A1\u003c\/td\u003e\n\u003ctd\u003eVolume Thumbwheel (analog signal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe SD socket is accessed with 4 SPI pins. SCLK and MOSI are used at alternate locations. See the audio library examples for details on how to select these different pins. The SD card is useful for playing music. Sandisk and other good quality SD cards are capable of playing 2 WAV files simultaneously.\u003c\/p\u003e\n\u003cp\u003eWires for MCLK, BCLK, LRCLK, TX \u0026amp; RX should be kept short. The audio shield is meant to connect to Teensy through short pins. Wires can be used, but \u003ca href=\"https:\/\/forum.pjrc.com\/threads\/41157-Just-noise-with-Teensy-3-6-and-Audio-Adaptor-Board\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ewires must be short to avoid problems\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe line in\/out header uses a pinout compatible with the AC97 audio header on PC motherboards. The front panel cables from most PCs can be connected, or wires can be soldered directly to the pins.\u003c\/p\u003e\n\u003cp\u003eIn January 2015, small improvements were added. The 1.0 µF capacitors were increased to 2.2 µF, to improve performance for sub-audible and extremely deep base sounds. 10K pullup resistors were added to pins 6 and 10.\u003c\/p\u003e\n\u003cp\u003eSolder pads were added to the I2S transmit and receive lines, and the I2C address configuration pin. Teensy 3.1 \u0026amp; 3.2 are \u003ca href=\"https:\/\/forum.pjrc.com\/threads\/29373-Bit-bang-multiple-I2S-inputs-simultaneously?p=79606#post79606\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cs\u003etheoretically\u003c\/s\u003e capable of quad channel I2S audio\u003c\/a\u003e. These pads are intended to allow a second audio board to be used, for 4 channel audio input and output! (TODO: 4 channel support has not yet been tested with Teensy 3.5 or 3.6)\u003c\/p\u003e\n\u003cp\u003eUpdate: the Teensy Audio Library now supports quad channel output. For details, see \u003cb\u003eFile \u0026gt; Examples \u0026gt; Audio \u0026gt; HardwareTesting \u0026gt; SGTL5000 \u0026gt; QuadChannelOutput\u003c\/b\u003e.\u003c\/p\u003e\n\u003cp\u003eSparkfun has \u003ca href=\"https:\/\/www.sparkfun.com\/news\/2055\" target=\"_blank\" rel=\"noopener noreferrer\"\u003egreat wiring instructions for 4 channel audio\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eOptional Memory Chip(s)\u003c\/h2\u003e\n\u003cp\u003eA \u003ca href=\"https:\/\/www.pjrc.com\/teensy\/W25Q128JV.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eW25Q128JV\u003c\/a\u003e or \u003ca href=\"https:\/\/www.pjrc.com\/teensy\/W25Q128FV.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eW25Q128FV\u003c\/a\u003e flash memory chip may be added on the bottom side. The Teensy Audio Library can \u003ca href=\"http:\/\/www.pjrc.com\/teensy\/gui\/index.html?info=AudioPlaySerialflashRaw\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eplay audio clips\u003c\/a\u003e from this memory, using the SerialFlash library. This flash memory has much lower access latency than SD cards, which allows many sounds to be played simultaneously.\u003c\/p\u003e\n\u003cp\u003eFuture versions of the audio library may also use this low latency flash memory for wavetable synthesis.\u003c\/p\u003e\n\u003cp\u003eAlteratively, a \u003ca href=\"https:\/\/www.pjrc.com\/teensy\/23LC1024.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e23LC1024\u003c\/a\u003e RAM memory chip may be added. The Teensy Audio Library can use the RAM chip for a \u003ca href=\"http:\/\/www.pjrc.com\/teensy\/gui\/index.html?info=AudioEffectDelayExternal\" target=\"_blank\" rel=\"noopener noreferrer\"\u003emulti-tap delay line\u003c\/a\u003e, up to 1.5 seconds. See this \u003ca href=\"https:\/\/www.youtube.com\/watch?v=d80d1HWy5_s\" target=\"_blank\" rel=\"noopener noreferrer\"\u003edemo video\u003c\/a\u003e for details.\u003c\/p\u003e\n\u003ch2\u003eRecommended SD Card\u003c\/h2\u003e\n\u003cp\u003eMost SD cards are optimized for sequential access, where a camera or camcorder reads or writes a single large file. All SD cards work well for playing a single WAV file at a time.\u003c\/p\u003e\n\u003cp\u003eFor simultaneous playing of 2, 3 or 4 stereo WAV files, many common \"class 10\" cards perform poorly. Even though they can support many megabytes per second in sequential access, they have high latency for non-sequential access.\u003c\/p\u003e\n\u003cp\u003ePJRC has tested several brands of SD cards. They recommend SanDisk Ultra for projects where multiple WAV files will be played at the same time. SanDisk Ultra is more expensive, but its non-sequential speed is much faster.\u003c\/p\u003e\n\u003cp\u003eThe Arduino SD library supports up to 32 GB size. Do not use 64 \u0026amp; 128 GB cards.\u003c\/p\u003e\n\u003cp\u003eThe audio library includes a simple benchmark to test SD cards. Open it from \u003cstrong\u003eFile \u0026gt; Examples \u0026gt; Audio \u0026gt; HardwareTesting \u0026gt; SdCardTest\u003c\/strong\u003e.\u003c\/p\u003e","brand":"PJRC","offers":[{"title":"Default Title","offer_id":7572659393,"sku":"TEENSY3_AUDIO","price":12.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/teensy3_audio_front.jpg?v=1570619512"},{"product_id":"phat-dac","title":"pHAT DAC","description":"\u003cp\u003eIf music be the food of love, play on. But make sure you use this super little DAC to get the best out of your Raspberry Pi audio!\u003c\/p\u003e\n\u003cp\u003eThis pHAT provides a super affordable high-quality DAC for your Raspberry Pi. It pumps out 24-bits at 192KHz from the Raspberry Pi's I2S interface on its 2x20 pin GPIO header.\u003c\/p\u003e\n\u003cp\u003eUse pHAT DAC to build a tiny, lush-sounding streaming music device, or use it with \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/scroll-hat-mini\"\u003eScroll pHAT\u003c\/a\u003e to make a beautiful spectrum analyser!\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e24-bit audio at 192KHz\u003c\/li\u003e\n\u003cli\u003eLine out stereo jack\u003c\/li\u003e\n\u003cli\u003eOptional landing for dual RCA phono connector\u003c\/li\u003e\n\u003cli\u003ePCM5102A DAC over the Raspberry Pi's I2S interface\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinout.xyz\/pinout\/phat_dac\"\u003epHAT DAC pinout\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible with all 40-pin header Raspberry Pi models\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFemale header requires soldering\u003c\/b\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ch2\u003eSoftware\u003c\/h2\u003e\n\u003cp\u003epHAT DAC doesn't require a Python library like most of our other HATs and pHATs, but does require configuration to work properly. We've put together a slick one-line installer to get everything set up just right. \u003ca href=\"http:\/\/learn.pimoroni.com\/tutorial\/phat\/raspberry-pi-phat-dac-install\"\u003eSee the tutorial here for more details.\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe kit has a 3.5mm stereo jack pre-assembled but doesn't include a \u003ca href=\"\/en-eu\/products\/dual-phono-connector-for-phat-dac\"\u003edual RCA phono connector\u003c\/a\u003e. If you need one then grab it \u003ca href=\"\/en-eu\/products\/dual-phono-connector-for-phat-dac\"\u003ehere\u003c\/a\u003e.\u003cbr\u003eN.B. Pi, micro SD card and Pibow case not included.\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":10458523655,"sku":"PIM138","price":12.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/pHAT_DAC_1_of_3.JPG?v=1559126593"},{"product_id":"dual-phono-connector-for-phat-dac","title":"Dual Phono Connector for pHAT DAC","description":"\u003cp\u003eThis is the dual phono connector that our pHAT DAC is designed to work with.\u003c\/p\u003e\n\u003cp\u003eSimply place it into the landing provided on the PCB and solder it up for super audio goodness.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRed\/white channel colours (red is right, right?)\u003c\/li\u003e\n\u003cli\u003eThrough hole termination\u003c\/li\u003e\n\u003cli\u003eRight angle\u003c\/li\u003e\n\u003cli\u003eBrass contacts with nickel plating\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/eu.mouser.com\/datasheet\/2\/209\/Kobiconn_Dual_Phono_Jack_156_Data_Sheet-1923869.pdf\" target=\"_blank\" title=\"Dual phono connector datasheet\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":10569071175,"sku":"COM1301","price":1.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/RCA_adaptor_2_of_3.JPG?v=1471276974"},{"product_id":"drum-hat","title":"Drum HAT","description":"\u003cp\u003eHook up these 8 advanced capacitive touch pads with LED indicators to start making sublime beats and control surfaces with your Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003eDrum HAT is the much-requested companion to \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/piano-hat\"\u003ePiano HAT\u003c\/a\u003e. It uses the same capacitive touch sensor to provide 8 finger-sized drum pads and an indicator LED for each pad.\u003c\/p\u003e\n\u003cp\u003eWe added carefully-designed (we drew circles) light channels so that every pad can light up with a tap but none of the LEDs get in your way. It creates a really cool under-lighting effect, too!\u003c\/p\u003e\n\u003cp\u003eUse it to play music in Python, control software drum synths on your Pi, take control of hardware drum machines, or just build it into an elaborate drum-controlled project.\u003c\/p\u003e\n\u003cp\u003eDrum HAT can even be used alongside \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/piano-hat\"\u003ePiano HAT\u003c\/a\u003e with a \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/black-hat-hacker\"\u003eBlack HAT Hack3r\u003c\/a\u003e or \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/mini-black-hat-hack3r\"\u003eMini Black HAT Hack3r\u003c\/a\u003e! A two-piece band in the palm of your hand.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.raspberrypi.org\/magpi-issues\/MagPi45.pdf\"\u003eThe MagPi\u003c\/a\u003e said that Drum HAT was an \u003cem\u003e\"awesome amount of fun\"\u003c\/em\u003e and gave it four stars.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e8 capacitive touch pads (link each to their own Python function!)\u003c\/li\u003e\n\u003cli\u003e8 bright white LEDs (let them light automagically, or take control with Python)\u003c\/li\u003e\n\u003cli\u003eWorks alonside \u003ca href=\"https:\/\/shop.pimoroni.com\/products\/piano-hat\"\u003ePiano HAT\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eMicrochip CAP1188 capacitive touch driver chip\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/pinout.xyz\/pinout\/drum_hat\"\u003eDrum 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\/drum-hat\"\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 whipped up a neat little \u003ca href=\"https:\/\/github.com\/pimoroni\/drum-hat\"\u003ePython library\u003c\/a\u003e to channel your inner Phil Collins (or Nick McBrain if you're that way inclined) in literally seconds.\u003c\/p\u003e\n\u003cp\u003eThere's a ready-to-go example with sampled drum sounds; all you have to do is hook up a set of speakers to your Pi's headphone jack.\u003c\/p\u003e\n\u003cp\u003eGet technical and Drum HAT to output regular MIDI commands via a USB to MIDI adapter, and control your software drum synths or hardware drum machine over MIDI.\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":11765726983,"sku":"PIM141","price":12.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Dum_HAT_1_of_2.JPG?v=1561634781"},{"product_id":"adafruit-wave-shield-for-arduino-kit-v1-1","title":"Adafruit Wave Shield for Arduino Kit - v1.1","description":"\u003cp\u003eAdding quality audio to an electronic project is surprisingly difficult. Here is a shield for Arduino 328's that solves this problem. It can play up to 22KHz 12bit uncompressed audio files of any length.\u003c\/p\u003e\n\u003cp\u003eIt's low cost, available as an easy-to-make kit. It has an onboard DAC, filter and op-amp for high quality output. Audio files are read off of an SD\/MMC card, which are available at nearly any store. Volume can be controlled with the onboard thumbwheel potentiometer.\u003c\/p\u003e\n\u003cp\u003eThis shield is a kit, and comes with all parts you need to build it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eArduino, SD card, tools, speaker and headphones are not included.\u003c\/strong\u003e It is fairly easy to construct and anyone with a successful soldering project under their belt should be able to build it.\u003c\/p\u003e\n\u003cp\u003eThe shield comes with an Arduino library for easy use; simply drag uncompressed wave files onto the SD card and plug it in. Then use the library to play audio when buttons are pressed, or when a sensor goes off, or when serial data is received, etc. Audio is played \u003cem\u003easynchronously\u003c\/em\u003e as an interrupt, so the Arduino can perform tasks while the audio is playing.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCan play any uncompressed 22KHz 16bit (on a 12bit DAC), mono Wave (.wav) files of any size. While it isnt CD quality, it is certainly good enough to play music, have spoken word, or audio effects. \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-wave-shield-audio-shield-for-arduino\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the demo video\/audio at the webpage\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput is mono, into L and R channels, standard 3.5mm headphone jack and a connection for a speaker that is switched on when the headphones are unplugged\u003c\/li\u003e\n\u003cli\u003eFiles are read off of a FAT16\/FAT32-formatted SD\/MMC card\u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-wave-shield-audio-shield-for-arduino\/sd-card\"\u003e \u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eIncluded library and examples makes playing audio easy\u003c\/li\u003e\n\u003cli\u003ePlease note that the library \u003cem\u003eis\u003c\/em\u003e rather bulky, requiring 10K of flash and more than 1\/2 K of RAM for buffering audio. It works fine using any ATmega328-based Arduino (Duemilanove, Uno or compatible).\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eThis shield is not Zero, Due, Mega or Leonardo compatible! (Only for use with '328-based Arduinos)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eMore information, including design notes, schematics, library, examples, etc is at the \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-wave-shield-audio-shield-for-arduino\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWave Shield webpage\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cp\u003eDetails:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions(assembled): 69mm x 65mm x 13mm (2.7in x 2.5in x 0.5in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRevision History:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of March 24\u003c\/strong\u003e - The thumbwheel for the potentiometer has changed, it is now smaller\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-wave-shield-audio-shield-for-arduino\/download\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eEagleCAD PCB files, schematic, and other downloads available in the product tutorial\u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":12051969863,"sku":"ADA94","price":18.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/94-05.jpg?v=1576593969"},{"product_id":"electret-microphone-20hz-20khz-omnidirectional","title":"Electret Microphone - 20Hz-20KHz Omnidirectional","description":"\u003cp\u003eThis electret capsule microphone is the same one Adafruit use in their great microphone amplifier board. It contains a small vibrating element that will output a few milllivolts peak-to-peak.\u003c\/p\u003e\n\u003cp\u003eYou will need an op-amp to amplify the signal, some chips are designed with the amplifier built in in which case you can wire it up directly.\u003c\/p\u003e\n\u003cp\u003eThis is an \"omnidirectional\" microphone, with -44dB sensitivity, and has 20-20KHz frequency response. You can plug it into a breadboard or perfboard or solder wires to the little wires sticking out the back.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.openmusiclabs.com\/learning\/sensors\/electret-microphones\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out OpenMusicLab's great tutorial on Electret Microphones for a deeper look at how these sensors work\u003c\/a\u003e. If you need an amplifier board, \u003ca href=\"\/en-eu\/products\/adafruit-electret-microphone-amplifier\" target=\"_blank\" rel=\"noopener noreferrer\"\u003esee Adafruits fully-assembled and tested mic amp board with adjustable gain.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.adafruit.com\/datasheets\/CMA-4544PF-W.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eElectret Capsule Microphone Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":16853190471,"sku":"ADA1064","price":1.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/1064-02.jpg?v=1539263114"},{"product_id":"adafruit-i2s-3w-class-d-amplifier-breakout-max98357a","title":"Adafruit I2S 3W Class D Amplifier Breakout - MAX98357A","description":"\u003cp\u003eListen to this good news - we now have an all in one digital audio amp breakout board that works incredibly well with the \u003ca href=\"\/en-eu\/products\/raspberry-pi-3\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRaspberry Pi\u003c\/a\u003e! If you're looking for an easy and low cost way to get you digital sound files bumpin' then the\u003cb\u003e MAX08357 I2S Amp Breakout \u003c\/b\u003eis for you.\u003c\/p\u003e\n\u003cp\u003eIt takes standard I2S digital audio input and, not only decodes it into analog, but also amplifies it directly into a speaker. Perfect for adding compact amplified sound, it takes 2 breakouts (I2S DAC + Amp) and combines them into one.\u003c\/p\u003e\n\u003cp\u003eI2S (not to be confused with I2C) in a digital sound protocol that is used on circuit boards to pass audio data around. Many high end chips and processors manage all of the audio in digital I2S format. Then, to input or output data, three or four pins are used (data in, data out, bit clock and left-right channel select). Usually, for audio devices, there's a DAC chip that will take I2S in and convert it to analog that can drive a headphone.\u003c\/p\u003e\n\u003cp\u003eThis small mono amplifier is surprisingly powerful - able to deliver 3.2 Watts of power into a 4 ohm impedance speaker (5V power @ 10% THD). Inside the miniature chip is a class D controller, able to run from 2.7V-5.5VDC. Since the amp is a class D, it's incredibly efficient - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot.\u003c\/p\u003e\n\u003cp\u003eThe audio input is I2S standard, you can use 3.3V or 5V logic data. The outputs are \"Bridge Tied\" - that means they connect directly to the outputs, no connection to ground. The output is a ~300KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003c\/p\u003e\n\u003cp\u003eThere's a Gain pin that can be manipulated to change the gain. By default, the amp will give you 9dB of gain. By connecting a pullup or pull down resistor, or wiring directly, the Gain pin can be set up to give 3dB, 6dB, 9dB, 12dB or 15dB.\u003c\/p\u003e\n\u003cp\u003eThe ShutDown\/Mode pin can be used to put the chip in shutdown or set up which I2S audio channel is piped to the speaker. By default, the amp will output (L+R)\/2 stereo mix into mono out. By adding a resistor, you can change it to be just left or just right output\u003c\/p\u003e\n\u003cp\u003eWorks great with Raspberry Pi, Arduino Zero, and any other microcontroller or microcomputer with I2S audio outputs\u003c\/p\u003e\n\u003cp\u003eSpecs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power: 3.2W at 4Ω, 10% THD, 1.8W at 8Ω, 10% THD, with 5V supply\u003c\/li\u003e\n\u003cli\u003ePSRR: 77 dB typ @ 1KHz\u003c\/li\u003e\n\u003cli\u003eI2S sample rates from 8kHz to 96kHz\u003c\/li\u003e\n\u003cli\u003eNo MCLK required\u003c\/li\u003e\n\u003cli\u003eClick + Pop reduction\u003c\/li\u003e\n\u003cli\u003eFive pin-selectable gains: 3dB, 6dB, 9dB, 12dB, 15dB\u003c\/li\u003e\n\u003cli\u003eExcellent click-and-pop suppression\u003c\/li\u003e\n\u003cli\u003eThermal shutdown protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes as an assembled and tested breakout board, with a small piece of optional header and 3.5mm terminal block. Some soldering is required to attach the header and terminal block if those are desired.   \u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-max98357-i2s-class-d-mono-amp\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the tutorial for schematics, diagrams, examples and more!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 19.4mm x 17.8mm x 3.0mm \/ 0.8\" x 0.7\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 1.2g\/0.0oz\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/MAX98357A-MAX98357B.pdf?5483205001892551510\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eMAX98357 Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":21696217799,"sku":"ADA3006","price":4.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3006.jpg?v=1464340729"},{"product_id":"mini-speaker-pc-mount-12mm-2-048khz","title":"Mini Speaker - PC Mount 12mm 2.048kHz","description":"\u003cp\u003eThis is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.\u003c\/p\u003e\n\u003cp\u003eThis is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with a square wave (e.g. from a microcontroller).\u003c\/p\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\/Components\/General\/cem-1203-42-.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":27864697415,"sku":"COM-07950","price":1.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/07950-1.jpg?v=1471512086"},{"product_id":"adafruit-i2s-3w-stereo-speaker-bonnet-for-raspberry-pi-mini-kit","title":"Adafruit I2S 3W Stereo Speaker Bonnet for Raspberry Pi - Mini Kit","description":"\u003cp\u003eHey Mr. DJ! Turn up that Raspberry Pi mix to the \u003cem\u003emax\u003c\/em\u003e with this cute \u003cstrong\u003e3W Stereo Amplifier Bonnet*\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe bonnet uses I2S, a digital sound standard, so you get really crisp audio. The digital data goes right into the amplifier so there's no static like you hear from the headphone jack. And it's super easy to get started. Just plug in any 4Ω to 8Ω speakers, up to 3W, run Adafruit's installer script on any Raspberry Pi, reboot, and you're ready to jam!\u003c\/p\u003e\n\u003cp\u003eIt's the exact same size as a Raspberry Pi Zero but works with any and all Raspberry Pis with a 2x20 connector. Tested with Raspbian and Retropie.\u003c\/p\u003e\n\u003cp\u003eEach order comes as a fully tested and assembled PCB and 2x extra terminal blocks. No soldering required if you're using a 3 Watt speaker set, just plug and play. You can either plug a pair of speakers right into the JST jack in the middle, \u003cstrong\u003e\u003cem\u003eor\u003c\/em\u003e you can solder the terminal blocks\u003c\/strong\u003e in and then connect any speaker you like! Hey, you can even use a \u003ca href=\"\/en-eu\/products\/surface-transducer-large\" target=\"_blank\" rel=\"noopener noreferrer\"\u003esurface transducer\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-speaker-bonnet-for-raspberry-pi\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThe tutorial will get you set up, and you'll be rockin' out in 15 minutes.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eDon't forget to make sure you have a reliable 5V power supply!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eI2S digital audio\u003c\/li\u003e\n\u003cli\u003eDrives 4-8Ω 3W speakers\u003c\/li\u003e\n\u003cli\u003eConnect speakers via JST or screw terminal blocks\u003c\/li\u003e\n\u003cli\u003e2x20 header and 2x terminal blocks included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePi Zero and speakers not included!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe terminal blocks included with your product may be blue or black.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-speaker-bonnet-for-raspberry-pi\"\u003eInstructions, datasheets, schematics, files, Fritzing object and more in the product guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eRevision History: As of March 16, 2018 this bonnet now comes with the 2x20 female header already soldered on\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 65.0mm x 30.0mm x 7.2mm \/ 2.6\" x 1.2\" x 0.3\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 7.4g \/ 0.3oz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*It's not big enough to be an official HAT, so they called it a bonnet, you see?\u003c\/em\u003e\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":34945052618,"sku":"ADA3346","price":10.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3346-13.jpg?v=1539263752"},{"product_id":"adafruit-music-maker-featherwing-mp3-ogg-wav-midi-synth-player","title":"Adafruit Music Maker FeatherWing - MP3 OGG WAV MIDI Synth Player","description":"\u003cp\u003eBend audio files to your will with the \u003cstrong\u003eAdafruit Music Maker FeatherWing\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eThe perfect musical add-on to your Feather! That's why Adafruit spun up this super FeatherWing, perfect for use with a great many of their Feather Boards!\u003c\/p\u003e\n\u003cp\u003eThis powerful shield features the VS1053, an encoding\/decoding (codec) chip that can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). You can do all sorts of stuff with the audio as well,  such as adjusting bass, treble, and volume digitally.\u003cbr\u003e\u003cbr\u003eAll this functionality is implemented in a light-weight SPI interface so that any Feather Board can play audio from an SD card. There's also a special MIDI mode that you can boot the chip into that will read 'classic' 31250Kbaud MIDI data from the UART TX pin and act like a synth\/drum machine - there are dozens of built-in drum and sample effects!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVS1053B codec chip - decodes Ogg Vorbis, MP3\/MP2\/MP1, MP4, AAC, WMA, FLAC, WAV\/PCM, MIDI.\u003c\/li\u003e\n\u003cli\u003eStereo audio out with proper audio filter caps and ground reference so it can be safely connected directly to headphones, a stereo system or other powered speakers\u003c\/li\u003e\n\u003cli\u003eMicroSD card socket, for any FAT16\/FAT32 formatted SD card from 64MB or greater\u003c\/li\u003e\n\u003cli\u003eBuilt-in MIDI synth\/drum machine with dozens of instruments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComes fully tested, with two sticks of 0.1\" male headers to plug it onto your Feather. Some light soldering is required to attach the through-hole headers to the PCB for plugging into your Feather Board.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphones, SD card and Feather Board not included!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-music-maker-featherwing\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eMore details and setup instructions can be found in Adafruit's tutorial\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":35149227146,"sku":"ADA3357","price":16.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3357.jpg?v=1539264260"},{"product_id":"pi-dac-pro","title":"Raspberry Pi DAC Pro","description":"\u003cp\u003eRaspberry Pi's highest fidelity audio HAT is compatible with any Raspberry Pi computer that has a 40-pin GPIO header.\u003c\/p\u003e\n\u003cp\u003eWith the Texas Instruments PCM5242, the DAC Pro provides an outstanding signal-to-noise ratio (SNR) and supports balanced\/differential output in parallel to phono\/RCA line-level output. It also includes a dedicated headphone amplifier. Previously known as IQaudio DAC Pro.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003eCheck out Raspberry Pi's\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.raspberrypi.com\/documentation\/accessories\/audio.html\" rel=\"noreferrer\"\u003eaudio boards documentation\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003efor help selecting and using Raspberry Pi audio boards.\u003c\/p\u003e\n\u003cp\u003eThe Raspberry Pi DAC Pro is compatible with any Raspberry Pi computer that has a 40-pin GPIO header.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eForm factor:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e58 mm × 65 mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFull high definition 24-bit 192kHz Texas Instruments PCM5242 digital audio codec (DAC)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eInput power:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSupplied by Raspberry Pi through the 40-pin GPIO header. No external power source required\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePower LED\u003c\/li\u003e\n\u003cli\u003eAnalogue out (0–2V RMS via P7)\u003c\/li\u003e\n\u003cli\u003eDedicated headphone amplifier, output via 3.5mm\u003c\/li\u003e\n\u003cli\u003epanel-mounted barrel socket\u003c\/li\u003e\n\u003cli\u003ePanel-mounted stereo phono (RCA) socket output\u003c\/li\u003e\n\u003cli\u003e40-pin pass-through GPIO header\u003c\/li\u003e\n\u003cli\u003eHAT EEPROM write-enabled\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0°C–50°C\u003c\/p\u003e\n\u003ch2\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/datasheets.raspberrypi.com\/audio\/dac-pro-hat-product-brief.pdf\"\u003eRaspberry Pi DAC Pro product brief\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Raspberry Pi","offers":[{"title":"Default Title","offer_id":38142341834,"sku":"SC2077","price":20.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/DAC_Pro-on_white.png?v=1758552715"},{"product_id":"pirate-radio-pi-zero-w-project-kit","title":"Pirate Radio - Pi Zero WH Project Kit","description":"\u003cp\u003eBuild your very own internet-connected radio with the Pirate Radio Kit!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpdated version! \u003c\/strong\u003eThe kit now includes a Raspberry Pi Zero WH and the audio board now includes a pre-soldered header.\u003cstrong\u003e No soldering required!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit has everything* you'll need, including a \u003ca href=\"\/en-eu\/products\/raspberry-pi-zero-wh-with-pre-soldered-header\" target=\"_blank\"\u003ePi Zero WH\u003c\/a\u003e, audio board with VU meter LEDs, I2S DAC, and stereo amp, a \u003ca href=\"\/en-eu\/products\/3-speaker-4-3w\" target=\"_blank\"\u003e5W speaker\u003c\/a\u003e, and a beautifully retro acrylic enclosure to make it look the business. It'll take you around 30 minutes to put together (check out our \u003ca href=\"https:\/\/learn.pimoroni.com\/assembling-pirate-radio\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eassembly guide\u003c\/a\u003e for details).\u003c\/p\u003e\n\u003ch2\u003eKit contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi Zero WH\u003c\/li\u003e\n\u003cli\u003eAudio board with I2S DAC, stereo amp. VU meter, and six buttons\u003c\/li\u003e\n\u003cli\u003eSingle 5W 4Ω speaker\u003c\/li\u003e\n\u003cli\u003eBlue acrylic enclosure **\u003c\/li\u003e\n\u003cli\u003e50cm USB A to micro-B cable\u003c\/li\u003e\n\u003cli\u003eUSB A (female) to micro B (male) adaptor\u003c\/li\u003e\n\u003cli\u003eMini to full-size HDMI adaptor\u003c\/li\u003e\n\u003cli\u003eSticker sheet (personalise your Pirate Radio!)\u003c\/li\u003e\n\u003cli\u003eComes in a reusable kit box\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e* Just add your own \u003ca href=\"\/en-eu\/products\/noobs-32gb-microsd-card-3-1\" target=\"_blank\"\u003emicro-SD card\u003c\/a\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e** We've tweaked the design of the back layer and legs recently, and have updated the \u003ca href=\"https:\/\/learn.pimoroni.com\/tutorial\/sandyj\/assembling-pirate-radio\" target=\"_blank\"\u003ebuild guide\u003c\/a\u003e with extra instructions for these new pieces.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThis kit takes advantage of the built-in wireless LAN and Bluetooth on the Pi Zero WH, meaning that there's no longer any need for a USB Wi-Fi dongle.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWe've put together three different software projects for your Pirate Radio: an \u003ca href=\"https:\/\/github.com\/pimoroni\/phat-beat\/tree\/master\/projects\/vlc-radio\" target=\"_blank\"\u003einternet radio\u003c\/a\u003e, a \u003ca href=\"https:\/\/learn.pimoroni.com\/tutorial\/sandyj\/streaming-spotify-to-your-pi\" target=\"_blank\"\u003eSpotify streaming box\u003c\/a\u003e, or an \u003ca href=\"https:\/\/learn.pimoroni.com\/tutorial\/sandyj\/streaming-airplay-to-your-pi\" target=\"_blank\"\u003eAirPlay speaker\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDual I2S DAC\/amplifiers (MAX98357A)\u003c\/li\u003e\n\u003cli\u003e3W per channel\u003c\/li\u003e\n\u003cli\u003e2x push fit speaker terminals\u003c\/li\u003e\n\u003cli\u003eDIP switch to select blended mono or stereo modes\u003c\/li\u003e\n\u003cli\u003e16 RGB LED pixels (APA102) in 2 rows of 8\u003c\/li\u003e\n\u003cli\u003e6 edge-mounted push buttons\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/github.com\/pimoroni\/phat-beat#full-install-recommended\" target=\"_blank\"\u003eSoftware installer\u003c\/a\u003e and ALSA VU meter plugin\u003c\/li\u003e\n\u003cli\u003e5W 4Ω speaker with pre-soldered wires\u003c\/li\u003e\n\u003cli\u003e3-layer blue acrylic enclosure\u003c\/li\u003e\n\u003cli\u003ePi Zero W with single core CPU and built-in wireless LAN and Bluetooth\u003c\/li\u003e\n\u003cli\u003eAdaptor kit\u003c\/li\u003e\n\u003cli\u003e50cm USB A to micro-B cable (power your Pi from an existing charger or computer)\u003c\/li\u003e\n\u003cli\u003ePre-soldered header\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/pimoroni\/phat-beat\" target=\"_blank\"\u003ePython library\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSoftware\u003c\/h2\u003e\n\u003cp\u003eOur nifty \u003ca href=\"https:\/\/github.com\/pimoroni\/phat-beat#full-install-recommended\" target=\"_blank\"\u003eone-line installer\u003c\/a\u003e will get your pHAT BEAT configured and install our VU meter plugin for ALSA that uses the RGB LEDs on pHAT BEAT to display sound levels.\u003c\/p\u003e\n\u003cp\u003eWe've also put together a \u003ca href=\"https:\/\/github.com\/pimoroni\/phat-beat\" target=\"_blank\"\u003ePython library\u003c\/a\u003e to allow you to control the LEDs independently, if you wish, and to program the buttons to do whatever you wish.\u003c\/p\u003e\n\u003ch2\u003eNotes\u003c\/h2\u003e\n\u003cp\u003eAssembled size of Pirate Radio is 135x85x70mm (WxHxD).\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":38476372426,"sku":"PIM261","price":40.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/zero-w-kits-square-1.jpg?v=1606227996"},{"product_id":"music-maker-featherwing-w-amp-mp3-ogg-wav-midi-synth-player-stereo-3w-amplifier","title":"Music Maker FeatherWing w\/ Amp - MP3 OGG WAV MIDI Synth Player - Stereo 3W Amplifier","description":"\u003cp\u003eBend all audio files to your will with the \u003cstrong\u003eAdafruit Music Maker FeatherWing + Amplifier\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cp\u003eIt's similar to \u003ca href=\"\/en-eu\/products\/adafruit-music-maker-featherwing-mp3-ogg-wav-midi-synth-player\" target=\"_blank\" rel=\"noopener noreferrer\"\u003etheir other Music Maker FeatherWing\u003c\/a\u003e, but this one is even better - \u003cstrong\u003ewith an on-board 3 Watt amplifier\u003c\/strong\u003e! This powerful wing features the VS1053, an encoding\/decoding (codec) chip that can decode a wide variety of audio formats such as MP3, AAC, Ogg Vorbis, WMA, MIDI, FLAC, WAV (PCM and ADPCM). You can do all sorts of stuff with the audio as well such as adjusting bass, treble, and volume digitally.\u003c\/p\u003e\n\u003cp\u003eAll this functionality is implemented in a light-weight SPI interface so that any Feather Board can play audio from an SD card. There's also a special MIDI mode that you can boot the chip into that will read 'classic' 31250Kbaud MIDI data from the UART TX pin and act like a synth\/drum machine - there are dozens of built-in drum and sample effects!\u003c\/p\u003e\n\u003cp\u003eWhat a great musical add-on to your Feather! Music playback testing working with ATmega32u4, ATSAMD M0, ESP8266, WICED Teensy 3, and nRF52 Feathers. MIDI playback works with all Feathers but you may need to remove the 'Wing during programming and also for USB-Serial Feathers like the ESP8266 and nRF52 you'll end up re-using the main Serial console for MIDI which can be confusing.\u003c\/p\u003e\n\u003cp\u003eHere are some specs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFeatures the VS1053B codec chip - decodes Ogg Vorbis, MP3\/MP2\/MP1, MP4, AAC, WMA, FLAC, WAV\/PCM, MIDI\u003c\/li\u003e\n\u003cli\u003eStereo audio out to any 4ohm speakers (3W max) or 8 ohm speakers (1W max), class D output\u003c\/li\u003e\n\u003cli\u003eMicroSD card socket, for any FAT16\/FAT32 formatted SD card from 64MB or greater\u003c\/li\u003e\n\u003cli\u003eBuilt in MIDI synth\/drum machine with dozens of instruments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach order comes with one tested FeatherWing, two 2-pin 3.5mm terminal blocks, and two sticks of 0.1\" male headers to plug it into your Feather. Some light soldering is required to attach the through-hole headers and terminal blocks to the PCB for plugging into your Feather Board and speakers.\u003c\/p\u003e\n\u003cp\u003eOnce you've soldered the terminal blocks in you can connect any speaker you like, such as our \u003ca href=\"\/en-eu\/products\/3-speaker-4-3w\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e4Ω 5W\u003c\/a\u003e. Hey you can even use a \u003ca href=\"\/en-eu\/products\/surface-transducer-large\" target=\"_blank\" rel=\"noopener noreferrer\"\u003esurface transducer\u003c\/a\u003e! Don't forget to make sure you have a good strong 5V power supply - especially if you're using the 3W 4 ohm speakers!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpeakers, SD card and Feather Board not included!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-music-maker-featherwing\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eExample code, wiring diagrams, library code, schematics and Fritzing object all in the tutorial!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Dimensions: 51.0mm x 23.0mm x 3.6mm \/ 2.0\" x 0.9\" x 0.1\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 4.8g \/ 0.2oz\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":40064791242,"sku":"ADA3436","price":20.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3436-00_8b00afba-b573-44dc-a426-5b311b4a4496.jpg?v=1576595783"},{"product_id":"amp-bit-class-d-amplifier-for-micro-bit-with-headphone-jack","title":"Amp:bit class D amplifier for micro:bit with headphone jack","description":"\u003cp\u003eThe Amp:bit is the easiest way to connect a speaker or headphones to your micro:bit.\u003c\/p\u003e\n\u003cp\u003eThe Amp:bit plugs on to the edge of your micro:bit and gives you the option of plugging headphones or speakers into the provided headphone jack, or you can solder speaker wires directly to the provided pads.\u003c\/p\u003e\n\u003cp\u003eIf you have a speaker connected to the speaker pads, the speakers will automatically mute when something is plugged in to the headphone socket. You also get a volume control wheel so you can adjust the volume whenever you like.\u003c\/p\u003e\n\u003cp\u003eThe Amp:bit also works great with the \u003ca href=\"\/en-eu\/products\/1up-bit-controller-kit-for-bbc-micro-bit\" target=\"_blank\"\u003e1up:bit game controller!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eExample code:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.proto-pic.co.uk\/user\/AudioSample.zip\" target=\"_blank\"\u003eMicroPython example code - using an encoded WAV sample\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.proto-pic.co.uk\/user\/1upbitdemo.zip\" target=\"_blank\"\u003eCode for use with 1up:bit\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eHeadphones, screw terminal, and speaker not included.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Proto-PIC","offers":[{"title":"Default Title","offer_id":46122905866,"sku":"PPMB00130","price":12.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/ampbit001.jpg?v=1539264070"},{"product_id":"adafruit-i2s-mems-microphone-breakout-sph0645lm4h","title":"Adafruit I2S MEMS Microphone Breakout - SPH0645LM4H","description":"\u003cp\u003eListen to this good news - we now have a breakout board for a super tiny\u003cstrong\u003e I2S\u003c\/strong\u003e MEMS microphone!\u003c\/p\u003e\n\u003cp\u003eJust like 'classic' electret microphones, MEMS mics can detect sound and convert it to voltage, but they're way smaller and thinner. This microphone doesn't even have analog out, its purely digital. The I2S is a small, low cost MEMS mic with a range of about 50Hz - 15KHz, good for just about all general audio recording\/detection.\u003c\/p\u003e\n\u003cp\u003eFor many microcontrollers, \u003ca href=\"\/en-eu\/products\/adafruit-electret-microphone-amplifier\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eadding audio input is easy with one of our analog microphone breakouts\u003c\/a\u003e. But as you get to bigger and better microcontrollers and microcomputers, you'll find that you don't always have an analog input, or maybe you want to avoid the noise that can seep in with an analog mic system. Once you get past 8-bit micros, you will often find an \u003cstrong\u003eI2S \u003c\/strong\u003eperipheral, that can take \u003cem\u003edigital audio data\u003c\/em\u003e in! That's where this \u003cstrong\u003eI2S Microphone Breakout \u003c\/strong\u003ecomes in.\u003c\/p\u003e\n\u003cp\u003eInstead of an analog output, there are three digital pins: Clock, Data and Left-Right (Word Select) Clock. When connected to your microcontroller\/computer, the 'I2S Master' will drive the clock and word-select pins at a high frequency and read out the data from the microphone. No analog conversion required!\u003c\/p\u003e\n\u003cp\u003eThe microphone is a single mono element. You can select whether you want it to be on the Left or Right channel by connecting the Select pin to power or ground. If you need stereo, pick up two microphones! You can set them up to be stereo by sharing the Clock, WS and Data lines but having one with Select to ground, and one with Select to high voltage.\u003c\/p\u003e\n\u003cp\u003eThis I2S MEMS microphone is bottom ported, so make sure you have the hole in the bottom facing out towards the sounds you want to read. It's a 1.6-3.6V max device only, so not for use with 5V logic (its really unlikely you'd have a 5V-logic device with I2S anyways). Many beginner microcontroller boards \u003cem\u003edon't\u003c\/em\u003e have I2S, so make sure its a supported interface before you try to wire it up! This microphone is best used with Cortex M-series chips like the Arduino Zero, Feather M0, or single-board computers like the Raspberry Pi.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-i2s-mems-microphone-breakout\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eFor code, libraries, wiring examples, CAD files, Fritzing and more, check out the guide!\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-i2s-mems-microphone-breakout\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eFor code, libraries, wiring examples, CAD files, Fritzing and more, check out the guide!\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eProduct Dimensions: 16.7mm x 12.7mm x 1.8mm \/ 0.7\" x 0.5\" x 0.1\"\u003c\/p\u003e\n\u003cp\u003eProduct Weight: 0.4g \/ 0.0oz\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":47650025226,"sku":"ADA3421","price":5.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3421-00.jpg?v=1539263327"},{"product_id":"respeaker-2-mics-phat","title":"ReSpeaker 2-Mics pHAT","description":"\u003cp\u003eReSpeaker 2-Mics Pi HAT is a dual-microphone expansion board for Raspberry Pi designed for AI and voice applications. Build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.\u003c\/p\u003e\n\u003cp\u003eThe board is developed based on WM8960, a low power stereo codec. There are 2 microphones on both sides of the board for collecting sounds and it also provides 3 APA102 RGB LEDs, 1 User Button and 2 on-board Grove interfaces for expanding your applications. What is more, 3.5mm Audio Jack or JST 2.0 Speaker Out are both available for audio output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThis product does not include the \u003ca href=\"\/en-eu\/products\/raspberry-pi-zero-w\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePi Zero board\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eIf you have any technical issue regarding software, please visit the \u003ca href=\"https:\/\/github.com\/respeaker\/seeed-voicecard\" target=\"_blank\" rel=\"noopener noreferrer\"\u003egithub page\u003c\/a\u003e and submit your query.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRaspberry Pi compatible(supports Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B and Raspberry Pi 3 B)\u003c\/li\u003e\n\u003cli\u003eDual-Microphones\u003c\/li\u003e\n\u003cli\u003e2 Grove Interfaces: support GPIO and I2C\u003c\/li\u003e\n\u003cli\u003eProgrammable Button and LED: one button and three LEDs\u003c\/li\u003e\n\u003cli\u003eAudio codec onboard\u003c\/li\u003e\n\u003cli\u003eTwo types audio output socket : 3.5mm Audio Jack, JST2.0 Speaker Out\u003c\/li\u003e\n\u003cli\u003eFar field support (up to 3 meters)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUsage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1.Get started with Google Assistant\u003c\/p\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/Z3gIbxnDCtI\" allowfullscreen=\"\" width=\"560\" height=\"315\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e2. How to use button to trigger Google Assistant\u003c\/p\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/bZuMimwXtII\" allowfullscreen=\"\" width=\"560\" height=\"315\" frameborder=\"0\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/forum.seeedstudio.com\/viewforum.php?f=87\u0026amp;sid=a170cbbeb3369f6f4f95f5c9098496d3\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRespeaker Forum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/SeeedDocument\/Bazzar_Attachment\/raw\/master\/107100001\/WM8960%20Datasheet.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWM8960 Datasheet.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/respeaker\/seeed-voicecard\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRelated Software on Github\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLearn\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/wiki.seeedstudio.com\/ReSpeaker_2_Mics_Pi_HAT\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eReSpeaker 2-Mics Pi HAT Wiki\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":49979573706,"sku":"SEEED-107100001","price":7.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/HwIkCfuzRZ5EauL7Q4xmaj3D.jpg?v=1539263367"},{"product_id":"respeaker-4-mic-array-for-raspberry-pi","title":"ReSpeaker 4-Mic Array for Raspberry Pi","description":"\u003cp\u003eReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications. Build a more powerful and flexible voice product that integrates Amazon Alexa Voice Service, Google Assistant, and so on.\u003c\/p\u003e\n\u003cp\u003eIn contrast to the \u003ca href=\"\/en-eu\/products\/respeaker-2-mics-phat\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eReSpeaker 2-Mics Pi HAT\u003c\/a\u003e, this board is developed based on AC108, a highly integrated quad-channel ADC with I2S\/TDM output transition for high definition voice capture. In addition, this 4-Mics version provides a super cool LED ring, which contains 12 APA102 programmable LEDs. With 4 microphones and the LED ring, the Raspberry Pi has the ability to do VAD (Voice Activity Detection), estimate DOA (Direction of Arrival) and show the direction via the LED ring, just like Amazon Echo or Google Home.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePlease note that the package does not contain Raspberry Pi.\u003c\/li\u003e\n\u003cli\u003ePlease note that there are no any audio output interfaces on ReSpeaker 4-Mic Array for Raspberry Pi. It is only for voice capture. And you could use the headphone jack on Raspberry Pi for audio output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e65mm x 65mm x 9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eG.W 20g    \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery\u003c\/td\u003e\n\u003ctd\u003eNot included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMIC\u003c\/td\u003e\n\u003ctd\u003e4 analog microphones\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED\u003c\/td\u003e\n\u003ctd\u003e12 APA102 programable RGB LEDs, connected to SPI interface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRaspberry Pi 40-Pin Headers\u003c\/td\u003e\n\u003ctd\u003esupport Raspberry Pi Zero, Raspberry Pi 1 B+, Raspberry Pi 2 B and Raspberry Pi 3 B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAC108\u003c\/td\u003e\n\u003ctd\u003ehighly integrated quad-channel ADC with I2S\/TDM output transition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSoftware Algorithm\u003c\/td\u003e\n\u003ctd\u003eVAD(Voice Activity Detection), DOA(Direction of Arrival) and KWS(Keyword Search)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrove\u003c\/td\u003e\n\u003ctd\u003e2 Grove Interfaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Capture Distance\u003c\/td\u003e\n\u003ctd\u003e3 meters radius voice capture\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/SeeedDocument\/ReSpeaker-4-Mic-Array-for-Raspberry-Pi\/raw\/master\/src\/ReSpeaker%204-Mic%20Array%20for%20Raspberry%20Pi%20%20v1.0.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eReSpeaker 4-Mic Array for Raspberry Pi v1.0.pdf\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.seeed.cc\/discover.html?t=respeaker\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSeeed's forum\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/SeeedDocument\/Bazzar_Attachment\/raw\/master\/103030216\/AC108_Datasheet_V1.1.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eAC108_Datasheet_V1.1\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eLearn\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/wiki.seeed.cc\/ReSpeaker_4_Mic_Array_for_Raspberry_Pi\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e[Wiki] ReSpeaker 4-Mic Array for Raspberry Pi \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seeed Studio","offers":[{"title":"Default Title","offer_id":49984944138,"sku":"SEEED-103030216","price":18.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/bazaar549331_3642.jpg?v=1539263368"},{"product_id":"sparkfun-sound-detector-with-headers","title":"SparkFun Sound Detector (with Headers)","description":"\u003cp\u003eThe SparkFun Sound Detector is a small and very easy-to-use audio sensing board with three different outputs.\u003c\/p\u003e\n\u003cp\u003eThe Sound Detector not only provides an audio output, but also a binary indication of the presence of sound and an analog representation of its amplitude. The three outputs are simultaneous and independent, so you can use as many or as few as you want at once.\u003c\/p\u003e\n\u003cp\u003eThe envelope output allows you to easily read amplitude of sound by simply measuring the analog voltage. Gain can be adjusted with a through-hole resistor to change the threshold of the binary (gate) output pin as well. Check the hookup guide below for more information about setting gain.\u003c\/p\u003e\n\u003cp\u003eEach of the three output signals is present on the pre-soldered 0.1\" header at the edge of the board. They are active simultaneously. If you aren’t using one in your particular application, simply leave that pin disconnected.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/sound-detector-hookup-guide\" target=\"_blank\"\u003eGet started with the SparkFun sound detector guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/cdn.sparkfun.com\/datasheets\/Sensors\/Sound\/sound-detector.pdf\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/cdn.sparkfun.com\/datasheets\/Sensors\/Sound\/sound-detector.zip\" target=\"_blank\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/sound-detector-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\/LMV324_660f5dfb-04da-4eec-b097-41d2bc8d015a.pdf?17721551016442806843\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e (LMV324)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/Sound_Detector\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":346095124490,"sku":"SEN-14262","price":10.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/14262-01.jpg?v=1539263398"},{"product_id":"adafruit-i2s-stereo-decoder-uda1334a-breakout","title":"Adafruit I2S Stereo Decoder - UDA1334A Breakout","description":"\u003cp\u003eThis fully-featured UDA1334A I2S Stereo DAC breakout is a perfect match for any I2S-output audio interface. It's affordable but sounds great!\u003c\/p\u003e\n\u003cp\u003eThe NXP UDA1334A is a jack-of-all-I2S-trades: you can use 3.3V - 5V logic levels (a rarity), and can process multiple different formats by setting two pins to high or low. The DAC will process data immediately, and give you a clear, analog, stereo line level output. It's even cool with MCLK-less I2S interfaces such as the \u003ca href=\"\/en-eu\/products\/raspberry-pi-3\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eRaspberry Pi\u003c\/a\u003e (which it's ideal for) - a built in PLL will generate the proper clock from the bitclock signal.\u003c\/p\u003e\n\u003cp\u003eFor inputs, you can use classic I2S (the default) or 16-bit, 20-bit or 24-bit left justified data. You can set it up to take an input system\/master clock but we default-set it to just generate it for you, so you only need to connect Data In, Word Select (Left\/Right Clock) and Bit Clock lines. If you want, there's a mute pin and a de-emphasis filter you can turn on.\u003c\/p\u003e\n\u003cp\u003eWe put in plenty of ferrite beads, a low-dropout regulator, and the recommended band-pass filter so you get a very nice clean output. With a sine-wave generator we swept through 20-20KHz and saw no attenuation or distortion. Plug into either the 3.5mm stereo headphone jack or the breadboard-friendly pads. We think you'll be pleased with this DAC!\u003c\/p\u003e\n\u003cp\u003eEach order comes with one I2S Stereo DAC breakout and some header you can solder on. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-i2s-stereo-decoder-uda1334a\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the detailed guide for wiring diagrams, schematics, code, setup info for Raspberry Pi and Arduino, and more!\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 40.0mm x 25.0mm x 7.1mm \/ 1.6\" x 1.0\" x 0.3\"\u003c\/li\u003e\n\u003cli\u003eProduct Weight: 4.6g \/ 0.2oz\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/UDA1334ATS.pdf?11553698716785800425\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUDA1334A Datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":1344798982154,"sku":"ADA3678","price":5.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3678-00.jpg?v=1539263501"},{"product_id":"speaker-for-micro-bit","title":"Speaker for micro:bit","description":"\u003cp\u003eThe MonkMakes Speaker for micro:bit is a neat little amplified speaker that connects to your micro:bit using alligator clips.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAmplified output\u003c\/li\u003e\n\u003cli\u003eLED ‘power on’ indicator\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection\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\u003e\u003cstrong\u003eConnecting to your micro:bit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConnect the Speaker to the micro:bit as shown below. When 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\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/wiring_speaker_large.png?v=1512398482\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJavaScript Blocks Editor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eVisit the \u003ca href=\"https:\/\/makecode.microbit.org\/\" target=\"_blank\"\u003eBlocks Editor\u003c\/a\u003e in your browser and then from the \u003cem\u003einput\u003c\/em\u003e section add an \u003cem\u003eon button A pressed\u003c\/em\u003e block then from the \u003cem\u003emusic\u003c\/em\u003e section add a \u003cem\u003estart melody\u003c\/em\u003e block and select the tune you want to play (in this case, \u003cem\u003eentertainer\u003c\/em\u003e).\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/play_tune_block_ed_closeup-1024x186_large.png?v=1512398631\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eClick Download and then copy the file onto your micro:bit.\u003c\/p\u003e\n\u003cp\u003eYou can also open the project in the Blocks Editor by clicking on the image below.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makecode.microbit.org\/_FWETHRRfu6vA\" target=\"_blank\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/play_tune_block_ed-1024x437_large.png?v=1512398671\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eYou can also make a simple musical instrument, using this tutorial: \u003ca href=\"https:\/\/makecode.microbit.org\/projects\/hack-your-headphones\/code\" target=\"_blank\"\u003ehttps:\/\/makecode.microbit.org\/projects\/hack-your-headphones\/code\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\u003eimport music\u003cbr\u003e\u003cbr\u003ewhile True:\u003cbr\u003e    if button_a.was_pressed():\u003cbr\u003e        music.play(music.ENTERTAINER)\u003c\/code\u003e\u003c\/p\u003e\n\u003cp\u003eWhen you press button A you will hear the tune “The Entertainer” play through the speaker.\u003c\/p\u003e\n\u003ch2\u003eMore Resources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.monkmakes.com\/downloads\/datasheet_speaker_for_mb.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.monkmakes.com\/downloads\/instructions_speaker_for_mb_1g.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstructions\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Monk Makes","offers":[{"title":"Default Title","offer_id":1447791525898,"sku":"MNK00060","price":7.5,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Monk_3_of_3.JPG?v=1539263532"},{"product_id":"sensor-for-micro-bit","title":"Sensor for micro:bit","description":"\u003cp\u003eThe MonkMakes Sensor Board for micro:bit allows you to sense sound level, temperature and light level.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e3V and GND connections can be made from either side and allow you to power a second board such as the \u003ca href=\"\/en-eu\/products\/relay-for-micro-bit\" target=\"_blank\"\u003eMonkMakes Relay Board\u003c\/a\u003e or \u003ca href=\"\/en-eu\/products\/speaker-for-micro-bit\" target=\"_blank\"\u003eMonkMakes Speaker\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003eLED ‘power on’ indicator\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection\u003c\/li\u003e\n\u003cli\u003eAll three sensors are analog and can be connected to pins P0, P1 and P2 using alligator clips.\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 to your micro:bit\u003c\/p\u003e\n\u003cp\u003eYou only have to wire up the sensors that you are actually using, but you could wire all the sensors up as shown below. The code examples below assume that pin 0 is used for sound, pin 1 for temperature and pin 2 for light. You can use any pin for any of the sensors, but remember to modify the code to match the pin you are using.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/sound_sensing-591x1024_large.png?v=1512400300\" alt=\"\"\u003e\u003c\/p\u003e\n\u003ch2\u003eSound\u003c\/h2\u003e\n\u003cp\u003eThe Sensor for micro:bit uses a MEMs (microphone on a chip) and a pre-amplifier. The output of the sound sensor is connected to an analog input where it can be sampled. The sound signal varies about the 1.5V level. So, silence will produce an analog output of around 1.5V. When there is sound the analog readings will oscillate above and below the 1.5V level like this:\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/scope_speach-annotated-1024x355_large.png?v=1512400335\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003eThis is why 511 is subtracted from the readings in the code examples below.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJavaScript Blocks Editor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHere is an example of using the Sensor Board to display a bargraph to indicate the sound level. Click on the image below to try it out. Making a noise into the microphone will make the LEDs dance.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/makecode.microbit.org\/_KurHzxeKERrm\" target=\"_blank\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/sound_block-1024x184_large.png?v=1512400386\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMicroPython\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003efrom microbit import *\u003cbr\u003e\u003cbr\u003edef bargraph(a):\u003cbr\u003e display.clear()\u003cbr\u003e for y in range(0, 5):\u003cbr\u003e if a \u0026gt; y:\u003cbr\u003e for x in range(0, 5):\u003cbr\u003e display.set_pixel(x, 4-y, 9)\u003cbr\u003e \u003cbr\u003ewhile True:\u003cbr\u003e sound_level = (pin0.read_analog() - 511) \/ 100\u003cbr\u003e bargraph(sound_level)\u003c\/code\u003e\u003c\/p\u003e\n\u003ch2\u003eTemperature\u003c\/h2\u003e\n\u003cp\u003eThe Sensor for micro:bit uses a thermistor to measure temperature. The temperature output from the board is a voltage that indicates the temperature. This is then measured using an analog input on the micro:bit.\u003c\/p\u003e\n\u003cp\u003eThe calculations for converting this voltage reading to an actual temperature are quite complicated and so the code examples here will only give a rough idea of temperature.\u003c\/p\u003e\n\u003cp\u003eIf you want your temperatures in Fahrenheit, then multiply the temperature in degrees C by 9, divide the result by 5 and then add 32.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJAVASCRIPT BLOCKS EDITOR\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is an example of using the Sensor Board to display the temperature, try putting your finger on the temperature sensor to warm it up. You can run the example below by clicking on it.\u003c\/p\u003e\n\u003cp\u003e \u003ca href=\"https:\/\/makecode.microbit.org\/_iKEWeJVvePTx\" target=\"_blank\"\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/thermometer_blocks-1024x310_large.png?v=1512400524\" alt=\"\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMicroPython\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003efrom microbit import *\u003cbr\u003e \u003cbr\u003ewhile True:\u003cbr\u003e reading = pin1.read_analog()\u003cbr\u003e temp_c = int(reading \/ 13.33 - 14)\u003cbr\u003e display.scroll(str(temp_c))\u003cbr\u003e sleep(500)\u003c\/code\u003e\u003c\/p\u003e\n\u003ch2\u003eLight\u003c\/h2\u003e\n\u003cp\u003eThe light sensor uses a phototransistor to measure the light level and produces an output voltage that increases as the light level increases. Here is a guide to the kind of light level you might get from the sensor under different conditions (0 to 1023).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDark 0 to 3\u003c\/li\u003e\n\u003cli\u003eDimly lit room 6 to 10\u003c\/li\u003e\n\u003cli\u003eIndoors directly under a light 10 to 50\u003c\/li\u003e\n\u003cli\u003eOutdoors (dull day) 100 to 200\u003c\/li\u003e\n\u003cli\u003eOutdoors (sunny day) 800 to 900\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEven though the maximum analog read value is 1023, the maximum reading from this sensor is around 900.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eJAVASCRIPT BLOCKS EDITOR\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eHere is an example of using the Sensor Board to display a bargraph to indicate the light level. Click on the image below to try it out. Put your finger over the light sensor to make it dark or shine a flash-light onto it to make more LEDs light up.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/microbit-screenshot-sensor-1024x212_large.png?v=1512400668\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMicroPython\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ccode\u003efrom microbit import *\u003cbr\u003e\u003cbr\u003edef bargraph(a):\u003cbr\u003e display.clear()\u003cbr\u003e for y in range(0, 5):\u003cbr\u003e if a \u0026gt; y:\u003cbr\u003e for x in range(0, 5):\u003cbr\u003e display.set_pixel(x, 4-y, 9)\u003cbr\u003e \u003cbr\u003ewhile True:\u003cbr\u003e light_level = pin2.read_analog() \/ 10\u003cbr\u003e bargraph(light_level)\u003c\/code\u003e\u003c\/p\u003e","brand":"Monk Makes","offers":[{"title":"Default Title","offer_id":1447927382026,"sku":"MNK00062","price":8.25,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Monk_2_of_3.JPG?v=1539263535"},{"product_id":"adafruit-pdm-mems-microphone-breakout","title":"Adafruit PDM MEMS Microphone Breakout","description":"\u003cp\u003eAn exotic new microphone has arrived, a \u003cstrong\u003ePDM MEMS Microphone\u003c\/strong\u003e!\u003c\/p\u003e\n\u003cp\u003ePDM is the 'third' kind of microphone you can integrate with electronics, apart from analog or I2S. These microphones are very commonly used in products, but are rarely seen in maker projects. Still, they have some benefits so Adafruit thought they'd offer a breakout for the shop.\u003c\/p\u003e\n\u003cp\u003eThe first thing to note is that this sensor does not provide an 'analog' output like many of our electret microphone assemblies. So it's great for chips that do not have analog inputs. Secondly, the digital interface is a very simplistic \u003cstrong\u003ep\u003c\/strong\u003eulse \u003cstrong\u003ed\u003c\/strong\u003eensity \u003cstrong\u003em\u003c\/strong\u003eodulation output. It's digital but its \u003cem\u003enot\u003c\/em\u003e PWM and it's \u003cem\u003enot\u003c\/em\u003e I2S. You will need to make sure your chip has a PDM interface - most 32-bit processors these days do!\u003c\/p\u003e\n\u003cp\u003ePDM is a little like 1-bit PWM. You clock the mic with a 1 MHz - 3 MHz clock rate, and on the data line you'll get a square wave out that syncs with the clock. The data line with be 0 or 1 logic output, with the square wave creating a \u003cem\u003edensity\u003c\/em\u003e that when averaged will result in the analog value out.\u003c\/p\u003e\n\u003cp\u003eThere's a few ways to manage these mics:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour chip comes with a hardware peripheral and library that does all the data managing at high speed, collects samples, applies a filter and gives you an analog value (Ideal!)\u003c\/li\u003e\n\u003cli\u003eYour chip comes with a hardware peripheral that gives you values, then it is up to you to perform the decimation\/filtering. (We have some example code for this on the ATSAMD21 chipset)\u003c\/li\u003e\n\u003cli\u003eYour chip does not come with a hardware peripheral but you're pretty clever and come up with a way to make it work (\u003ca href=\"https:\/\/curiouser.cheshireeng.com\/2015\/01\/21\/pdm-in-attiny85-source-code\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSee this example for the ATtiny85\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eYou generate the high speed clock, then add an analog filter on the data line, and read the analog value (A hack, but works!)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEither way you decide to go, make sure you have a handle on what support you get with your platform, as these chips are a little tricky!\u003c\/p\u003e\n\u003cp\u003eEach order comes with one fully assembled and tested microphone, and a little header to solder on for breadboard-compatibility. \u003ca href=\"http:\/\/learn.adafruit.com\/adafruit-pdm-microphone-breakout\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eCheck out the full guide for wiring details, schematics, example code, datasheet and more!\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTECHNICAL DETAILS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/learn.adafruit.com\/adafruit-pdm-microphone-breakout\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eWiring, schematics, example code, datasheets, Fritzing and more in the product tutorial!\u003c\/a\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage Range: 1.8-3.3V\u003c\/li\u003e\n\u003cli\u003eClock rate: 1 - 3.25 MHz\u003c\/li\u003e\n\u003cli\u003eCurrent draw: 0.6mA\u003c\/li\u003e\n\u003cli\u003eSNR: 61 dB\u003c\/li\u003e\n\u003cli\u003eSensitivity: ~-26 dBFS\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProduct Dimensions: 14.0mm x 12.8mm x 2.8mm \/ 0.6\" x 0.5\" x 0.1\"\u003c\/p\u003e\n\u003cp\u003eProduct Weight: 0.5g \/ 0.0oz\u003c\/p\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":1849958105098,"sku":"ADA3492","price":4.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/3492-00.jpg?v=1520871399"},{"product_id":"mini-speaker-4-3w","title":"Mini Speaker 4Ω (3W)","description":"\u003cp\u003eThis little speaker is diminutive, but the sound it pumps out is surprisingly good. It is ideal for building your own small jukebox or radio with one of our \u003ca rel=\"noopener noreferrer\" href=\"\/en-eu\/collections\/audio\/pimoroni\" target=\"_blank\"\u003eaudio boards\u003c\/a\u003e!\u003c\/p\u003e\n\u003cp\u003eThe 4Ω 3W speaker measures 40x40x20mm, and comes with an approximately 35cm piece of wire (20AWG) attached with pre-tinned ends. The mounting holes will take an M2.5 bolt\/screw and the hole centres are 32.5mm apart.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou can also buy this speaker \u003ca rel=\"noopener\" href=\"\/en-eu\/products\/mini-speaker-4-3w-with-jst-ph-connector\" target=\"_blank\"\u003ewith a two-pin JST-PH connector\u003c\/a\u003e attached.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener noreferrer\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/ST404004-30.pdf?v=1587039695\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Generic","offers":[{"title":"Default Title","offer_id":2976551927818,"sku":"COM1601","price":2.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Mini_Speaker_4_Ohm_3W_3_of_3_grande_copy.jpg?v=1528470999"},{"product_id":"supplementary-stereophonic-speaker-for-sea-shanty-shenanigans","title":"Supplementary Stereophonic* Speaker for Sea Shanty Shenanigans","description":"\u003cp\u003eWe designed this speaker kit as an add-on to our \u003ca href=\"\/en-eu\/products\/pirate-radio-pi-zero-w-project-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePirate Radio Kit\u003c\/a\u003e, for stereo sound, but it'll work with any small \u003ca href=\"\/en-eu\/collections\/electronics\/audio\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eaudio board\u003c\/a\u003e that you want to add a speaker to.\u003c\/p\u003e\n\u003cp\u003eThe kit comes with everything you need to put it together, apart from a screwdriver. The ends of the wires on the speaker are pre-tinned, so it's really easy just to pop them into our push-fit speaker terminals on \u003ca href=\"\/en-eu\/products\/phat-beat\" target=\"_blank\" rel=\"noopener noreferrer\"\u003epHAT BEAT\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThese are the same \u003ca href=\"\/en-eu\/products\/3-speaker-4-3w\" target=\"_blank\" rel=\"noopener noreferrer\"\u003espeakers\u003c\/a\u003e that we use in \u003ca href=\"\/en-eu\/products\/pirate-radio-pi-zero-w-project-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePirate Radio\u003c\/a\u003e and \u003ca href=\"\/en-eu\/products\/picade\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePicade\u003c\/a\u003e, and they sound really decent for their size.\u003c\/p\u003e\n\u003ch2\u003eKit includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/en-eu\/products\/3-speaker-4-3w\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e3\" speaker (4Ω 5W) with pre-tinned wires\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eAcrylic stand with legs and rubber feet\u003c\/li\u003e\n\u003cli\u003eM3 nuts and bolts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNote: this is just the speaker, and not the full Pirate Radio (\u003ca href=\"\/en-eu\/products\/pirate-radio-pi-zero-w-project-kit\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eclick here if you want a Pirate Radio\u003c\/a\u003e)\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*This speaker is not stereo, but _does_ add stereo sound to your Pirate Radio, hence the name... plus it alliterates well :-)\u003c\/em\u003e\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":2976567197706,"sku":"PIM350","price":7.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Supplementary_Speaker_3_of_5.JPG?v=1528471010"},{"product_id":"adafruit-mono-2-5w-class-d-audio-amplifier-pam8302","title":"Adafruit Mono 2.5W Class D Audio Amplifier - PAM8302","description":"\u003cp\u003eThis super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers.\u003c\/p\u003e\n\u003cp\u003eInside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic \"LM386\" amps!\u003c\/p\u003e\n\u003cp\u003eThe A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin  to ground. The output is \"Bridge Tied\" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly.\u003c\/p\u003e\n\u003cp\u003eComes with a fully assembled and tested breakout board. Also included are a header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach\/detach your speaker. You will be ready to rock in 15 minutes! \u003cb\u003eSpeaker is not included, use any 4 ohm or greater impedance speaker.\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply\u003c\/li\u003e\n\u003cli\u003e50dB PSRR at 1KHz\u003c\/li\u003e\n\u003cli\u003eFilterless design, with ferrite bead + capacitors on output.\u003c\/li\u003e\n\u003cli\u003eFixed 24dB gain, onboard trim potentiometer for adjusting input volume.\u003c\/li\u003e\n\u003cli\u003eThermal and short-circuit\/over-current protection\u003c\/li\u003e\n\u003cli\u003eLow current draw: 4mA quiescent and 1uA in shutdown mode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The terminal block included with your product may be blue or black.\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/PAM8302A.pdf?8298622467428888666\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ePAM8302A datasheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca target=\"_blank\" href=\"https:\/\/github.com\/adafruit\/Adafruit-PAM8302-Mono-Amplifier-PCB\" rel=\"noopener noreferrer\"\u003eEagleCAD PCB files on GitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca target=\"_blank\" href=\"https:\/\/github.com\/adafruit\/Fritzing-Library\" rel=\"noopener noreferrer\"\u003eFritzing object available in Adafruit Fritzing library\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDimensions (without 0.1\" header):\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e15mm x 24mm x 2mm \/ 0.6\" x 0.9\" x 0.08\"\u003c\/li\u003e\n\u003cli\u003eWeight: 1.4g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":3075960766474,"sku":"ADA2130","price":3.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/2130-01.jpg?v=1524827792"},{"product_id":"arduino-mkr-zero-i2s-bus-sd-for-sound-music-digital-audio-data","title":"Arduino MKR ZERO (I2S bus \u0026 SD for sound, music \u0026 digital audio data)","description":"\u003cp\u003eMKR ZERO has an on-board SD connector with dedicated SPI interfaces (SPI1) that allows you to play with MUSIC files with no extra hardware!\u003c\/p\u003e\n\u003cp\u003eWatch out music makers, we’ve got some news for you! Arduino have released two libraries for your enjoyment:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/arduino.cc\/en\/Reference\/ArduinoSound\" title=\"Arduino Sound Library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eArduino Sound library\u003c\/a\u003e – a simple way to play and analyze audio data using Arduino on SAM D21-based boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/arduino.cc\/en\/Reference\/I2S\" title=\"I2S Library\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eI2S library\u003c\/a\u003e – to use the I2S protocol on SAMD21-based boards. For those who don’t know, I2S (Inter-IC Sound) is an electrical serial bus interface standard for connecting digital audio devices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MKR ZERO brings you the power of a Zero in the smaller format established by the MKR form factor. The MKR ZERO board acts as a great educational tool for learning about 32-bit application development. It has an on-board SD connector with dedicated SPI interfaces (SPI1) that allows you to play with MUSIC files with no extra hardware!  The board is powered by Atmel’s SAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWarning: Unlike most Arduino \u0026amp; Genuino boards, the MKRZero runs at 3.3V. The maximum voltage that the I\/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I\/O pin could damage the board.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it by a LiPo battery. The battery voltage can also be monitored since a connection between the battery and the analog converter of the board exists.\u003c\/p\u003e\n\u003cp\u003eYou can find your board warranty information \u003ca href=\"https:\/\/www.arduino.cc\/en\/Main\/warranty\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehere\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eGetting Started\u003c\/h2\u003e\n\u003cp\u003eIn the \u003ca href=\"https:\/\/www.arduino.cc\/en\/Guide\/ArduinoMKRZero\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eGetting Started section\u003c\/a\u003e, you can find all the information you need to configure your board, use the \u003ca href=\"https:\/\/www.arduino.cc\/en\/Main\/Software\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eArduino Software (IDE)\u003c\/a\u003e, and start to tinker with coding and electronics. \u003c\/p\u003e\n\u003ch2\u003eNeed Help?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOn the Software \u003ca href=\"https:\/\/forum.arduino.cc\/index.php?board=63.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eon the Arduino Forum\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eOn Projects \u003ca href=\"https:\/\/forum.arduino.cc\/index.php?board=3.0\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eon the Arduino Forum\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eOn the Product itself through \u003ca href=\"https:\/\/store.arduino.cc\/index.php?main_page=contact_us\u0026amp;language=en\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eArduino Customer Support\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Arduino","offers":[{"title":"Default Title","offer_id":3092586102794,"sku":"ABX00012","price":25.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/ABX00012_iso_02_2_1_e8ee7f8a-dad8-4274-8e4a-f670f17a9622.jpg?v=1530368187"},{"product_id":"noise-bit","title":"noise:bit","description":"\u003cp\u003eMake your \u003ca href=\"\/en-eu\/products\/microbit\" target=\"_blank\"\u003emicro:bit\u003c\/a\u003e sing with noise:bit! It's a tiny speaker that packs a fair bit of punch, and it's perfect for BLEEPS and BLOOPS!\u003c\/p\u003e\n\u003cp\u003eJust slot in your micro:bit, and use the sound generation blocks and code in Microsoft MakeCode and MicroPython to generate tones, sounds, and speech. We've had great fun combining it with a second micro:bit and using \u003ca href=\"\/en-eu\/products\/enviro-bit\" target=\"_blank\"\u003eenviro:bit\u003c\/a\u003e's light sensor and the wireless function to make a radio-controlled theremin!\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComes fully-assembled and ready to use\u003c\/li\u003e\n\u003cli\u003eTPA301 amplifier chip\u003c\/li\u003e\n\u003cli\u003e8Ω 2W Mylar speaker\u003c\/li\u003e\n\u003cli\u003eCompatible with \u003ca href=\"\/en-eu\/products\/microbit\" target=\"_blank\"\u003emicro:bit\u003c\/a\u003e \u003cspan data-mce-fragment=\"1\"\u003eand \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003c\/span\u003e\u003ca href=\"\/en-eu\/products\/new-micro-bit-v2\" data-mce-fragment=\"1\" data-mce-href=\"\/en-eu\/products\/new-micro-bit-v2\" target=\"_blank\"\u003emicro:bit v2\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eNo soldering required!\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSoftware \u003c\/h2\u003e\n\u003cp\u003eYou can code noise:bit with the block-based \u003ca href=\"https:\/\/makecode.microbit.org\" target=\"_blank\"\u003eMicrosoft MakeCode editor\u003c\/a\u003e, using its audio generation blocks, if you want to delve deeper, then you can use MicroPython in the \u003ca href=\"https:\/\/codewith.mu\" target=\"_blank\"\u003eMu code editor\u003c\/a\u003e.\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":3141221744650,"sku":"PIM356","price":12.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/microbit-addons-sq-3.jpg?v=1531739795"},{"product_id":"wav-trigger","title":"WAV Trigger","description":"\u003cp\u003eThe WAV Trigger is a unique high-fidelity polyphonic audio player with surprising capabilities. Supporting up to 2048 uncompressed 16-bit, 44.1kHz wav files – the same quality as an audio CD – the WAV Trigger can play and mix up to 14 stereo tracks simultaneously and independently, with very low latency.\u003c\/p\u003e\n\u003cp\u003eTracks can be controlled via 16 programmable trigger inputs, or by using a native serial control protocol or even MIDI.\u003c\/p\u003e\n\u003cp\u003eTrigger inputs can be connected directly to switches and buttons, or to digital outputs from sensors or another microcontroller. Alternate functions can be specified using a free cross-platform GUI application, and allow triggers to play sequential or random tracks, pause and resume groups of tracks and even control volume. An Arduino library allows for complex serial control like real-time mixing, starting multiple tracks in sample-sync and smooth cross-fading between tracks.\u003c\/p\u003e\n\u003cp\u003eOn-board sample rate conversion allows for smoothly changing playback speed\/pitch from 0.5x to 2x. in real-time.\u003c\/p\u003e\n\u003cp\u003eMIDI allows you to use the WAV Trigger as a polyphonic sampling synthesizer to play your own sounds from any MIDI keyboard controller. MIDI Channels and Note numbers are mapped to track numbers, and MIDI Controllers adjust volume as well as attack and release times. MIDI Program Change is supported to switch between up to 16 banks of 128 sounds. The WAV Trigger audio engine even implements, pitch bending, voice stealing (oldest playing voices are used for new MIDI Notes when all 14 voices are being used), note attack (fade-in), note release (fade-out) and latency averages 8 ms.\u003c\/p\u003e\n\u003cp\u003eThe WAV Trigger supports both SDSC (up to 2GB) and SDHC (up to 32GB) type microSD cards.\u003c\/p\u003e\n\u003cp\u003eCheck the link in the documents below to keep up with the latest Firmware updates!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e This product is a collaboration with Robertsonics. A portion of each sales goes back to them for product support and continued development.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSupports up to 2048 uncompressed 16-bit stereo WAV files at 44.1kHz – CD quality\u003c\/li\u003e\n\u003cli\u003ePolyphonic! Play and mix up to 14 stereo tracks independently and simultaneously\u003c\/li\u003e\n\u003cli\u003eSample-accurate starting and playback of up to 14 parallel stereo tracks\u003c\/li\u003e\n\u003cli\u003eTrigger-to-sound delay: 8 msecs typ, 12 msecs max\u003c\/li\u003e\n\u003cli\u003eMIDI control: Velocity-sensitive triggering of up to16 banks of 128 tracks\u003c\/li\u003e\n\u003cli\u003eReal-time playback rate control and MIDI Pitch Bend\u003c\/li\u003e\n\u003cli\u003ePause and resume individual or groups of tracks. Multiple random trigger ranges\u003c\/li\u003e\n\u003cli\u003eTrue line-level stereo output: 2.1V RMS ground centered, 100dB SNR\u003c\/li\u003e\n\u003cli\u003eOn-board mono audio amplifier and speaker connector: 2W into 4 Ohms, 1.25W into 8 Ohms\u003c\/li\u003e\n\u003cli\u003e16 trigger inputs are individually adjustable for contact closure, 3.3V or 5.0V control\u003c\/li\u003e\n\u003cli\u003eTrigger inputs can be individually inverted, and\/or set to be edge, latched or level sensitive\u003c\/li\u003e\n\u003cli\u003eVolumes adjustable from +10dB to -70dB in 0.5dB increments\u003c\/li\u003e\n\u003cli\u003eFirmware volume fades (attacks \u0026amp; decays) and cross-fades\u003c\/li\u003e\n\u003cli\u003eA dedicated “Play” status digital output pin\u003c\/li\u003e\n\u003cli\u003e3.3V and 5.0V output pins\u003c\/li\u003e\n\u003cli\u003eExtensive serial control. Arduino library available. Pin compatible with SparkFun FTDI Basic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e Documents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Widgets\/wavtrigger_v11.pdf\" target=\"_blank\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Widgets\/wavtrigger_v11.zip\" target=\"_blank\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/cdn.sparkfun.com\/datasheets\/Widgets\/STM32F405RGT6.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e (STM32F405RGT6)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/learn.sparkfun.com\/tutorials\/wav-trigger-hookup-guide-v11\" target=\"_blank\"\u003eHookup Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/robertsonics.com\/wav-trigger-online-user-guide\/\" target=\"_blank\"\u003eUser Guide\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/robertsonics.com\/wav-trigger-downloads\/\" target=\"_blank\"\u003eFirmware Updates and Utilities\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/robertsonics.com\/wav-trigger\/\" target=\"_blank\"\u003eProduct Page\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/WAV_Trigger\/tree\/H_v11\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/github.com\/robertsonics\/WAV-Trigger-Arduino-Serial-Library\" target=\"_blank\"\u003eGitHub\u003c\/a\u003e (Library)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":18060362186835,"sku":"WIG-13660","price":51.75,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/12897-02.jpg?v=1542389594"}],"url":"https:\/\/shop.pimoroni.com\/en-eu\/collections\/audio-1.oembed","provider":"Pimoroni Ltd","version":"1.0","type":"link"}