HyperDuino-based CubeSat

My interest in space exploration started in October, 1957 with the launch of Sputnik. In 1961 I did a science fair project based on an instrument package I designed, built and sent aloft with a weather balloon. Today, the task is a lot easier, and this Instructable shows how you can make your own small demonstration satellite (based on the CubeSat design) that can even be sent aloft with a balloon. My goal is to get you started with a project you can expand to your hearts content.”