By popular request, you can now get our 14-segment LED backpacks without the LEDs! These backpacks feature an HT16K33 I2C LED driver, they're simple and easy to use - you can use our very nice library for the backpacks to get running in under half an hour, with numbers and letters displaying. If you've been eyeing matrix displays but hesitated because of the complexity, this is the solution you've been looking for!