The Adafruit Gemma measures just 1 inch in size and is powered by an ATtiny85 and programmable with an Arduino IDE over USB, allowing you to create those wearable projects of the future.

Both the Raspberry Pi Pimoroni OnOff SHIM and Pimoroni Button SHIM with 5 x tactile, right-angle push buttons are priced at $6.95 and both are in stock as of the current time.

We’re not sure exactly how much you should expect to spend if you decide to make it, but the microcontroller costs $20 on Adafruit and each of the nine displays is $9.95, so we’re guessing it ...