Open post 13 @13@2137.social · Jul 07, 2026 13 @13@2137.social 2137.social Reverse Engineering and Self-Hosting the OBI Smart Energy Tracker https://hackaday.com/2026/07/07/reverse-engineering-and-self-hosting-the-obi-smart-energy-tracker/ #ReverseEngineering #Homeautomation #Mqtt #Smartmeters