Datasheet

Downloads

Software

Download the Adafruit LED Backpack library from github - This code provides support for the mini 8x8, 1.2" 8x8, 7-

segment, bargraph, alphanumeric and bicolor LED matrix backpacks.

To download click the ZIP download button, rename the uncompressed folder Adafruit_LEDBackpack. Check that the

Adafruit_LEDBackpack folder contains Adafruit_LEDBackpack.cpp and Adafruit_LEDBackpack.h Place the

Adafruit_LEDBackpack library folder your

arduinosketchfolder

/libraries/ folder.

You may need to create the

libraries

subfolder if its your first library.

You'll also need to download the Adafruit GFX library - its not actually used for the 7-segment, its only for the matrix

backpacks but its still required. Install just like the library above. Restart the IDE

Files

Fritzing objects in Adafruit Fritzing library

EagleCAD PCB files for all backpacks in GitHub

The backpacks all use the HT16K33 chip solely for LED driving - the mini 8x8's use the 24 pin version and the

others use the 28 pin vesion

HT16K33 8x16 LED Backpack Breakout

Schematic & fabrication print