5599-ADA, Assembled Adafruit 0.56" 4-Digit 7-Segment Display - I2C Backpack - STEMMA QT - Red

The Assembled Adafruit 0.56" 4-Digit 7-Segment Display - I2C Backpack - STEMMA QT - Red is a quick and easy solution for any hobby project.

Description

What'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 all the seven-segment LEDs you need 14 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. That's where these adorable LED matrix backpacks come in. We have them in two flavors - a mini 8x8 and a 4-digit 0.56" 7-segment. 

The matrices use a driver chip that does all the heavy lifting for you: They have a built-in clock to multiplex the display. They use constant-current drivers for ultra-bright, consistent color, 1/16 step display dimming, all via a simple I2C interface. The backpacks come with address-selection jumpers so you can connect up to four mini 8x8's or eight 7-segments (or a combination, such as four mini 8x8's and four 7-segments, etc) on a single I2C bus.

The product kit comes with:

-A fully tested and assembled LED backpack with a pre-soldered ultra-bright 4-digit 0.56" tall red seven-segment display.
-A 4-pin header.