{"product_id":"adafruit-small-12-8x8-led-matrix-with-i2c-backpack-yellow","title":"Adafruit Small 1.2\" 8x8 LED Matrix with I2C Backpack - Yellow","description":"\u003cp\u003eWhat's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x8 matrix or a 4-digit 7-segment display. Matrices like these are 'multiplexed' - so to control 64 LEDs you need 16 pins. That's a lot of pins, and there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up and they take up a ton of space.\u003c\/p\u003e\n\u003cp\u003eHere at Adafruit, we feel your pain! After all, wouldn't it be awesome if you could control a matrix without tons of wiring? That's where these lovely LED matrix backpacks come in.\u003c\/p\u003e\n\u003cp\u003eWe have them in three flavours - a mini 0.7\" 8x8, a small 1.2\" 8x8 and a 4-digit 0.56\" 7-segment. They work perfectly with the matrices we stock in the shop and make adding a bright little display trivial.\u003c\/p\u003e\n\u003cp\u003eThe matrices use a driver chip that does all the heavy lifting for you: They have a built-in clock, so they multiplex the display. They use constant-current drivers for ultra-bright, consistent colour (the images above are photographed at the dimmest setting to avoid overloading our camera!), and 1\/16 step display dimming, all via a simple I2C interface. These 1.2\" matrix backpacks come with three address-selection jumpers so you can connect up to eight 1.2\" 8x8s together (or a combination, such as four 1.2\" 8x8s and four 7-segments, etc) on a single I2C bus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe product kit comes with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA fully tested and assembled 1.2\" LED backpack\u003c\/li\u003e\n\u003cli\u003eUltra-bright 1.2\" 8x8 yellow\/orange matrix\u003c\/li\u003e\n\u003cli\u003e4-pin header\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA bit of soldering is required to attach the matrix onto the backpack but it's very easy to do and only takes about 5 minutes.\u003c\/p\u003e\n\u003cp\u003eThis board\/chip uses I2C 7-bit addresses between 0x70-0x77, selectable with jumpers.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOf course, in classic Adafruit fashion, \u003c\/span\u003ewe also have a detailed tutorial showing you how to solder, wire and control the display\u003cspan\u003e. We even wrote \u003c\/span\u003ea very nice library for the backpacks so you can get running in under half an hour, displaying images on the matrix or numbers on the 7-segment\u003cspan\u003e. If you've been eying matrix displays but hesitated because of the complexity, this is the solution you've been looking for!\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\n\u003cspan\u003e\u003ciframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/-rf0tDP_exg?si=mD_TUc_OXfPaeocg\u0026amp;start=321\" height=\"315\" width=\"560\"\u003e\u003c\/iframe\u003e\u003c\/span\u003eResources\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\nAdafruit LED Backpacks Tutorial\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRevision History\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAs of October 30, 2024\u003c\/strong\u003e – We've updated this PCB with Adafruit Pinguin to make a lovely and legible silkscreen, and with SparkFun Qwiic compatible STEMMA QT connectors for the I2C bus, so you don't even need to solder the I2C and power lines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e\u003c!----\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":53697462599956,"sku":"gyt1787257084709","price":7.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9486\/7220\/files\/adafruit-small-12-8x8-led-matrix-with-i2c-backpack---yellow_1.jpg?v=1787257089","url":"https:\/\/regalwearstore.shop\/products\/adafruit-small-12-8x8-led-matrix-with-i2c-backpack-yellow","provider":"My Store","version":"1.0","type":"link"}