KC868-M16v2 configure yaml for ESPhome

[admin]

Code:

#sensor:
#  - platform: zmpt101b
#    name: "m16--AI zmpt 34"
#    adc_pin: 34
#    id: voltage_1
#    unit_of_measurement: V
#    accuracy_decimals: 1
#    state_class: "measurement"
#  - platform: zmpt101b
#    name: "m16--AI zmpt 36"
#    adc_pin: 36
#    id: voltage_2
#    unit_of_measurement: V
#    accuracy_decimals: 1
#    state_class: "measurement"
#  - platform: zmpt101b
#    name: "m16--AI zmpt 39"
#    adc_pin: 39
#    id: voltage_3
#    unit_of_measurement: V
#    accuracy_decimals: 1
#    state_class: "measurement"

please see your yaml file, you have comments to the code. you need remove these "#" for the voltage sensor.