Reverse Engineering and Self-Hosting the OBI Smart Energy Tracker
A German DIY store's OBI Smart Energy Tracker, which connects to an electricity meter and sends data to the cloud, has been reverse-engineered to allow local data handling. The gateway device, normally dependent on AWS, can now be configured to use a local MQTT server without firmware flashing. Custom firmware for the ESP32-C3 is also available, offering users greater control over their energy data. This effort highlights growing interest in self-hosting and privacy in smart home devices.
A hacker reverse-engineered a smart energy tracker sold by OBI to allow it to work without relying on cloud services.
This lets users take control of their energy data locally, improving privacy and reducing dependence on internet-connected systems.
It shows how people can reclaim control over smart devices, promoting self-sufficiency and open-source solutions in everyday tech.
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