Software

You'll need to install the following libraries to use any of the LED backpacks.

Open up the Arduino library manager:

Search for the Adafruit LED Backpack library and install it

Search for the Adafruit GFX library and install it

We also have a great tutorial on Arduino library installation at:
http://learn.adafruit.com/adafruit-all-about-arduino-libraries-install-use

Files

• Fritzing objects in Adafruit Fritzing library
• EagleCAD PCB files for all backpacks in GitHub
• Alphanumeric STEMMA QT Display 3D models on 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

8x8 0.8" LED Backpack

8x8 1.2" LED Backpack

8x8 1.2" Bi-Color LED Backpack

16x8 1.2" LED Backpacks

0.56" 7-Segment LED Backpack STEMMA QT

Quad 0.56" 7-Segment Original

Quad 0.54" 14-segment Alphanumeric STEMMA QT Version

Quad 0.54" 14-segment Alphanumeric Original Version

Quad 1.2" 7-Segment

Bicolor 24-Bargraph