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ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.

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UART Man-in-the-middle with ESPHome? (self.esphome)

submitted 1 year ago by vapeloki to c/[email protected]

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Hey all,

i want to hack a portable AC. The devices communicates via UART between Mainboard and control unit (LCD and Buttons). As we still want to use the original controls, i had the idea to put an ESP32 in the middle of the communication (using UART2 for the mainboard and UART3 for the control board).

I don't want to reverse engineer the whole protocol, only the relevant parts. So, i need a way to forward all messages in both directions, to make this work as it should.

Has anybody done such a thing already? Or has any tips how to do it.

I'm fluent in C++, so there is not barrier here, but i am new to the codebase of ESPHome

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[–] bcnelson 3 points 1 year ago

Sounds good to go then. I would appreciate it if you let me know how it turns out