{"product_id":"small-1-2-8x8-ultra-bright-red-led-matrix-kwm-30881cvb","title":"Small 1.2\" 8x8 Ultra Bright Red LED Matrix - KWM-30881CVB","description":"\u003cp\u003eMake a scrolling sign, or a small video display with this 8x8 gridded red LED matrix.\u003c\/p\u003e\n\u003cp\u003eOnly 1.2\" on a side, it is quite visible but not so large it won't plug into a breadboard! There are 16 pins on the side, 8 on each, with 0.1\" spacing so you can easily plug it into a breadboard with one row on each side for wiring it up.\u003c\/p\u003e\n\u003cp\u003eSince the display is in a grid, you'll need to 1:8 multiplex control it. We suggest either using a 74HC595 and TPIC6B595 (using the 74HC' to control the 8 anodes at once and then using the TPIC' to drive one cathode at a time) or just using a single MAX7219 which will do the multiplexing work for you.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.arduino.cc\/playground\/Main\/LEDMatrix\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThe Arduino playground has a nice set of tutorials introducing the MAX7219 and 8x8 LED matrices\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn-shop.adafruit.com\/datasheets\/KWM-30881XVB.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThe datasheet contains all technical details for this part\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eThis is a Common Cathode LED Matrix\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/www.arduino.cc\/playground\/Main\/LEDMatrix\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eThe Arduino playground has a nice set of tutorials introducing the MAX7219 and 8x8 LED matrices\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"http:\/\/fabienroyer.wordpress.com\/2010\/12\/03\/driving-an-8x8-led-matrix-with-a-netduino-using-persistence-of-vision\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eUsing a high power shift register to drive 8x8 matrices with a NETduino\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":31533677543507,"sku":"ADA455","price":3.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/products\/455-00.jpg?v=1581683069","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/small-1-2-8x8-ultra-bright-red-led-matrix-kwm-30881cvb","provider":"Pimoroni Ltd","version":"1.0","type":"link"}