Gemma

Gemma is a tiny wearable platform board with a lot of might in a 1" diameter package. Powered by a Attiny85 and programmable with an Arduino IDE over USB, you'll be able to realize any wearable project!

There's a GEMMA board, four sewable bright RGB pixels, a battery holder and batteries, 2-ply conductive thread, alligator clips to help you test out your circuit, and a USB cable for programming GEMMA. If you want to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation. Perfect for when you don't want to give up your Flora and you aren't willing to take apart the project you worked so hard to design. It's our lowest-cost sewable controller! Even though you can program GEMMA using the Arduino IDE, it's not a fully 100% Arduino-compatible.