1222 Development boards - Adafruit GEMMA V2

GEMMA is a tiny wearable platform board with a lot of might. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you'll be able to realize any wearable project!

The Attiny85 is a fun processor because despite being so small, it has 8K of flash, and 5 I/O pins, including analog inputs and PWM 'analog' outputs. Adafruits designed a USB bootloader so you can plug it into any computer and reprogram it over a USB port just like an Arduino (it uses 2 of the 5 I/O pins, leaving you with 3). In fact Adafruit even made some simple modifications to the Arduino IDE so that it works like a mini-Flora. Perfect for small & simple projects the GEMMA will be your go-to wearable electronics platform.