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Developer Uses ESP32 to Decode Industrial BACnet Protocol from Home Thermostat

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A software developer named Felice Lombardi found that their home thermostat was communicating using BACnet, an industrial building automation protocol. Lombardi built a bridge using an ESP32 microcontroller to intercept and interpret the thermostat's data. The project was documented and shared on DEV Community on September 3. The work highlights how consumer devices sometimes rely on industrial-grade protocols that are typically inaccessible to end users. The solution involved IoT hardware and AI assistance to close the gap between the device and the developer.

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