I built a dead-simple Arduino-based gym timer for my StrongLifts 5x5 routine
My simple solar setup has been featured in articles on Fin24 and HTXT.
We built a smart watch at House4Hack. I decided to re-write the firmware and Android app from scratch.
I built an Android accessory using an Arduino. It's a charging dock and notification light, among other things.
In the quest for a mind-blowing home theatre experience, I experimented with two projectors and planned out my custom-built sound system. It turned out better than I thought!