Wolk
The first idea (as below) was to make a little solarpowered robot. This is still the case but it won't run on tracks but it will fly in the sky hanging under a balloon.
;)
Makes people aware of air quality
- Actuators / output devices: LEDs
- CPU: Picaxe 28x1
- Power source: Lipo
- Sensors / input devices: gas sensors
- Target environment: Outdoors