{"product_id":"18-channel-8-bit-pwm-led-driver-w-i2c-interface","title":"18-Channel 8-bit PWM LED Driver w\/ I2C Interface","description":"\u003cp\u003eWe love the little SN3218A chip we used to make PiGlow so much that we've decided to turn it into a handy little breakout module.\u003c\/p\u003e\n\u003cp\u003eThis is a super low-cost way to drive 18 LEDs at constant current up to 34mA per channel- no resistors required! Just hook up the cathodes of your LEDs to each channel and provide a common 5V supply for the anodes and away you go!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2.75 - 5.5V supply and logic voltage\u003c\/li\u003e\n\u003cli\u003eUp to 34mA per channel constant current sinking (adjustable)\u003c\/li\u003e\n\u003cli\u003eBread-board compatible format\u003c\/li\u003e\n\u003cli\u003eI2C interface (address 0x54)\u003c\/li\u003e\n\u003cli\u003eSupplied with 0.1\" headers to solder yourself\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe I2C interface is very simple to use and works with Raspberry Pi, Arduino, and many other platforms - the device address is 0x54. With the Raspberry Pi you can use the 3V3 supply to power the chip (via the VCC pin on the breakout board) and the 5V supply to power the LEDs.\u003c\/p\u003e\n\u003cp\u003eYou can pick your own LEDs and layout to suit your project, and then use the \u003ca href=\"https:\/\/github.com\/pimoroni\/piglow\"\u003ePiGlow library and existing examples\u003c\/a\u003e to get you started.\u003c\/p\u003e\n\u003cp\u003eWe have an Arduino library available here: \u003ca href=\"https:\/\/github.com\/pimoroni\/pimoroni_arduino_sn3218\"\u003ehttps:\/\/github.com\/pimoroni\/pimoroni_arduino_sn3218\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAnd a Python one for the Raspberry Pi, too: \u003ca href=\"https:\/\/github.com\/pimoroni\/sn3218\"\u003ehttps:\/\/github.com\/pimoroni\/sn3218\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eNeed some LEDs? We sell \u003ca href=\"\/en-eu\/products\/led-5mm-pack-of-10\"\u003epacks of 10 in red, blue, green, white, and yellow\u003c\/a\u003e.\u003c\/p\u003e","brand":"Pimoroni","offers":[{"title":"Default Title","offer_id":987744417,"sku":"PIM057","price":5.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/Glow_-_half_again.JPG?v=1416590372","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/18-channel-8-bit-pwm-led-driver-w-i2c-interface","provider":"Pimoroni Ltd","version":"1.0","type":"link"}