input A1 4-20mA ESPHome

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- platform: adc
    pin: 35
    name: "A8S A3 Current"
    update_interval: 5s
    unit_of_measurement: mA
    attenuation: 11db
    filters:
      - multiply: 6.66666666
  - platform: adc
    pin: 39
    name: "A8S A4 Current"
    update_interval: 5s
    unit_of_measurement: mA
    attenuation: 11db
    filters:
      - multiply: 6.66666666

this is demo code for KC868-A8S, you can replace your board's pin number. make sure it's 4-20mA input port.