[Solved] Dewin RMDT-1PNL 63 Smart Circuit Breaker OpenBK7231 MQTT Setup

The discussion focuses on integrating the Dewin RMDT-1PNL 63 Smart Circuit Breaker with Home Assistant using the OpenBK7231IN firmware without relying on the Tuya cloud. After flashing the device with OpenBK7231IN_QIO_1.18.102.bin, the user could add the breaker to Home Assistant but initially lacked power consumption data and ON/OFF control. It was identified as a TuyaMCU-based device requiring specific configuration, including enabling flags 46 or 47 and running the TuyaMCU driver with proper dpID mappings in autoexec.bat. Key dpIDs include 1 (total forward energy in kWh with scaling), 6 (Phase A voltage, current, and power in a raw 8-byte format), and 16 (breaker switch toggle). The user was guided to disconnect the programmer and power the device from the grid to obtain valid measurements. Configuration steps involved setting channel types for toggle, voltage, current, and power, and linking TuyaMCU outputs to channels with appropriate scaling and offsets to fine-tune readings. The toggle control was functional on one unit but not on the other due to a damaged board trace, which was resolved after repair. The user also inquired about renaming channels, adjusting measurement precision, refresh rates (suggested via addRepeatingEvent for periodic state queries), and MQTT integration with Home Assistant using HASS discovery. The discussion included troubleshooting logs, dpID data extraction, and firmware backup restoration. The final setup allowed accurate voltage, current, power, and total energy monitoring with toggle control via Home Assistant, fully independent of the Tuya cloud.
Summary generated by the language model.