The very first project that got me started learning about microcontrollers was LED Tetherball. It was developed as a camp project for Burning Man, an interactive game folks could engage in while they wandered the city. It was a perfect learning project that got me exploring LEDs, batteries and sensors
When I first got into Arduino I saw a few useless machine videos that caught my interest. I did a lot of prototyping but never ended up building the full box. I still plan to someday, just need to find the time!
The code can be found here. Much love to Lamja who originally posted the code I based mine off of.
These videos document my early prototyping and testing.