I had this idea of building my own bicycle lighting system totally personalized, the lights would have the exact lighting ...

Making an Arduino shield can be simpler than you think. This time I designed one to program Attiny and Atmega ...

Thanks to jaromir-sukuba, and racerxdl for working on firmware to implement C2 protocol via arduino GPIO. This work largely pulls from them, as well as connorpp. C2 is a 2-pin protocol. Any arduino ...