Adafruit Small 1.2 8x8 LED Matrix With I2C Backpack - Yellow

Product Description

• Requires a 5V supply• Constant current drivers for ultra-bright, consistent colour•1/16 step display dimming•I2C interface• Backpack comes with address-selection jumpers so you can connect up to four mini 8x 8's or eight 7-segments • And to view the library please click here to help you get started!• To see Adafruits tutorial showing how to solder, wire & control the display please click here What's better than a single LED? Lots of LEDs! A fun way to make a small display is to use an 8x 8 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, & there are driver chips like the MAX7219 that can control a matrix for you but there's a lot of wiring to set up & they take up a ton of space. The 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!), 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" 8x 8's together (or a combination, such as four 1.2" 8x 8's & four 7-segments, etc) on a single I2C bus.