Recently kids at Maker Camp witnessed a live balloon launch from Google. We can’t help but wonder if Google’s Project Loon will ignite further interest in the DIY and Maker community to unlock new potential for high altitude balloons and what you can do with them. This is an exciting time where space has never been more accessible and it seems that high altitude balloons is one way to get there.
Combine an Arduino with a USB host mode-compatible Android device, and control a strip of full-color RGB LEDs with your Android's touchscreen. Explore Pulse Width Modulation to get maximum brightness from your LEDs and mix their values to correct for color balance.