MODBUS help needed - Ampinvt solar controller to Home Assistant via ESPhome

[nikito7]

You could try

01 A1 01 00 00 00 00 5D with 0x

Maybe with uart.write

Checksum Calculator

I don’t know if is the correct way to calc checksum.

Related:

Foxess Inverter Modbus

Edit, please read first: The working ESPHome custom component can be found here. Additionally @Safs managed to get this working with a Elfin Module Hello, i’m trying to read out my Foxess Solar Inverter over Modbus with esphome. Unfortunately I can’t get it to work and since this is the first time I’m using modbus I don’t know where to start troubleshooting or even interpret the log entries. Perhaps there is someone who can point me in the right direction. Esphome YAML: esphome: name: …