What happens when you combine an Arduino-based microcontroller with a palm-sized aluminum box and clicky buttons? A fidget ...

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 ...

For the project I used this KeeYees kit that can be purchased at this link: https://www.amazon.it/KeeYees-GY-BME280-Atmosferica-Temperatura-Breadboard/dp/B07T2H5QXC ...