XDA Developers on MSN

6 smart home devices anyone can build with a cheap ESP32 and an even cheaper sensor

These are some great DIY projects that you can do for cheap.
Hackaday

Reverse Engineering And Self-Hosting The OBI Smart Energy Tracker

Sold by German DIY store OBI, the OBI Energy Tracker is a €15 set of two devices, one of which you essentially stick on top ...