ESPHome Modbus config for KC868-A6

[aucirc]

sorry, i don't know the "WP3082ADAM". maybe you can use USB-RS485 adapter to test firstly. when you send command manually and check whether have feedback. if OK, then test with ESPHome.

Hey I just realised I was reading the schematic incorrectly.

The correct GPIO pins for RS485 on A6 are described here: 
https://devices.esphome.io/devices/KinCony-KC868-A6

In case this is helpful for anyone else, I now have RS485 working on A6 using following ESPHome config:

Code:

uart:
  - id: rs485
    tx_pin: GPIO27
    rx_pin: GPIO14
    baud_rate: 9600
  - id: rs232
    tx_pin: GPIO17
    rx_pin: GPIO16
    baud_rate: 9600

modbus:
  id: modbus1
  uart_id: rs485
  send_wait_time: 200ms

modbus_controller:
- id: wp3082adam1
  address: 1
  modbus_id: modbus1
  update_interval: 2s

Now receiving data correctly in ESPHome:
[14:15:20][D][text_sensor:064]: 'analoginputs': Sending state '00000000000000000334'