This diagram uses the Gemma v2 but you can also use the Gemma M0 with the exact same wiring!
Gemma + 8x8 LED Matrix
Using the GEMMA in this build allows us to plug in a rechargeable battery directly into the JST port is directly on the board. GEMMA can be powered by USB but will need to have a battery power source for portability.
- VCC pin goes to VBAT
- GND pin goes to GND
- SCL pin goes to D2/A1
- SDA pin goes to D0
Prototyping
If your new to working with GEMMA, be sure to use a breadboard and jumper wires to prototype. Use alligator clips to clip jumper wires to GEMMA. The 8x8 LED matrix w/backpack will need header + pins soldered to the breakouts. Check out the adafruits guide to LED backpacks for more details.Text editor powered by tinymce.
