sensor_adc.yaml

sensor:
#ADC2 pins cannot be used when Wi-Fi is used

#https://docs.espressif.com/projects/esp-idf/en/v5.3.2/esp32/api-reference/peripherals/adc_oneshot.html
# ADC_ATTEN_DB_0 :  100 mV ~ 950 mV
# ADC_ATTEN_DB_2_5 : 100 mV ~ 1250 mV
# ADC_ATTEN_DB_6 : 150 mV ~ 1750 mV
# ADC_ATTEN_DB_12 : 150 mV ~ 2450 mV

  - platform: adc
    pin: ${adc_bemf_1_pin} #GPIO36
    name: "BEMF 1" #CH1 + CH2
    update_interval: 50ms # the start of motor need a lot of current, it must be averaged to not trigger the endstop. 50ms update interval with sliding_window_moving_average [5,5] works
    attenuation : 0dB #auto
    accuracy_decimals: 3
    # samples: 10
    filters:
    - offset: ${adc_zero_calibration} # stall voltage : https://github.com/nliaudat/floor-heating-controller/wiki/BEMF-trigger-calculation
    # - skip_initial: 10
    # only for binary sensors : - delayed_on_off: 100ms # prevent trigger at motor start : https://esphome.io/components/binary_sensor/
    - sliding_window_moving_average:
        window_size: 5
        send_every: 5
    id : BEMF_1_2_sensor_ADC
    # web_server:
      # sorting_group_id: sorting_group_BEMF
    

  - platform: adc
    pin: ${adc_bemf_2_pin} #GPIO39
    name: "BEMF 2" #CH3 + CH4
    update_interval: 50ms
    attenuation : 0dB #auto
    accuracy_decimals: 3
    # samples: 10
    filters:
    - offset: ${adc_zero_calibration}
    - sliding_window_moving_average:
        window_size: 5
        send_every: 5
    id : BEMF_3_4_sensor_ADC
    # web_server:
      # sorting_group_id: sorting_group_BEMF

  - platform: adc
    pin: ${adc_bemf_3_pin} #GPIO34
    name: "BEMF 3" #CH5 + CH6
    update_interval: 50ms
    attenuation : 0dB #auto
    accuracy_decimals: 3
    # samples: 10
    filters:
    - offset: ${adc_zero_calibration}
    - sliding_window_moving_average:
        window_size: 5
        send_every: 5
    id : BEMF_5_6_sensor_ADC
    # web_server:
      # sorting_group_id: sorting_group_BEMF

  - platform: adc
    pin: ${adc_bemf_4_pin} #GPIO35
    name: "BEMF 4" #CH7 + CH8
    update_interval: 50ms
    attenuation : 0dB #auto
    accuracy_decimals: 3
    # samples: 10
    filters:
    - offset: ${adc_zero_calibration}
    - sliding_window_moving_average:
        window_size: 5
        send_every: 5
    id : BEMF_7_8_sensor_ADC
    # web_server:
      # sorting_group_id: sorting_group_BEMF