Brink Flair 325 Heat recovery unit ESPhome modbus integration (~$5)

[Fonske]

Depending on the rs485 model it might needs a flow_control_pin in the esphome code (or not)

Troubleshooting ESP32 and Modbus Integration

Hey everyone, I’m relatively new to the scene and don’t have much experience with electronics and programming, but I’m currently working on a project that involves an ESP32 microcontroller, a specific pinout configuration, and a power meter. However, I’ve encountered an issue and could really use some guidance. Here’s what I have: ESP32 with the following pinout: ESP32_DevKit_C_V4_Pinout.pdf (shopify.com) A power meter with the instructions available here: Eastron SDM220M* User Manual (xn…