New tutorial at @Adafruit_Industries just in time for the Wonder Woman movie release! These cosplay bracers feature FastLED running on a Circuit Playground. They’re motion reactive and sound reactive – the light effects go off when you move your arm quickly or when a loud noise sounds in your vicinity (like, when the bad guys shoot at you, obviously).
Watch the campy video! I roped my uncle into playing our villain and he was absolutely hilarious. 
https://learn.adafruit.com/wonder-woman-cosplay-bracers/introduction