Arduino Gemma and Neopixel LEDs to give some life to my 3D Printed Princess Hilda Staff: Zelda Link Between Worlds.

Know what you breathe. A handy and wearable hazardous gas detection system with LED indication.

My spin on the Pinterest lightup cloud but with a little more colors.

Tarab is an Arduino-powered dance costume with LEDs which change colour based on the dancer's motion.