Shelly 1PM Gen3

esphome:
  platformio_options:
    board_build.mcu: esp32c3
    board_build.variant: esp32c3
    board_build.f_cpu: 160000000L
    board_build.f_flash: 80000000L
    board_build.flash_mode: dio
    board_build.flash_size: 8MB
esp32:
  variant: esp32c3
  board: esp32-c3-devkitm-1
api:
ota:
wifi:
uart:
  id: bl0942_uart
  tx_pin: GPIO6
  rx_pin: GPIO7
  baud_rate: 9600
  stop_bits: 1
output:
  - id: shelly_1pm_gen3_relay
    platform: gpio
    pin: GPIO4
binary_sensor:
  - id: shelly_1pm_gen3_switch
    name: Switch
    platform: gpio
    pin: GPIO10
  - id: shelly_1pm_gen3_button
    name: Button
    platform: gpio
    pin: GPIO1
sensor:
  - id: temperature
    name: Temperature
    platform: ntc
    sensor: temperature_sensor_resistance
    icon: mdi:thermometer
    entity_category: diagnostic
    unit_of_measurement: °C
    accuracy_decimals: 1
    calibration:
      b_constant: 3350
      reference_resistance: 10kOhm
      reference_temperature: 25°C
  - id: temperature_sensor_resistance
    platform: resistance
    sensor: temperature_sensor_voltage
    configuration: DOWNSTREAM
    resistor: 10kOhm
  - id: temperature_sensor_voltage
    platform: adc
    pin: GPIO3
    attenuation: 11db
  - platform: bl0942
    uart_id: bl0942_uart
    line_frequency: 60Hz
    voltage:
      name: Voltage
    current:
      name: Current
    power:
      name: Power
    frequency:
      name: Frequency
      accuracy_decimals: 2

substitutions:
  device_id: lauwshpow
  device_name: LAUWSHPOW
  channel_1_id: washer_outlet
  channel_1_name: Washer Outlet
esphome:
  name: $device_id
  area: Laundry Room
  platformio_options:
    board_build.mcu: esp32c3
    board_build.variant: esp32c3
    board_build.f_cpu: 160000000L
    board_build.f_flash: 80000000L
    board_build.flash_mode: dio
    board_build.flash_size: 8MB
esp32:
  variant: esp32c3
  board: esp32-c3-devkitm-1
api:
ota:
wifi:
# Newer ESP32 variants (including the C3) enable USB on the UART pins by
# default unless we explicitly specify that we want to use UART0 for the
# logger.
#
# You can check this by looking at the generated PlatformIO config file.
# For example, in .esphome/build/lauwshpow/platformio.ini, the following
# build_flags would be set if U0RXD/U0TXD are configured to speak USB:
#
#     -DARDUINO_USB_CDC_ON_BOOT=1
#     -DARDUINO_USB_MODE=1
#
# I don't care about USB; I'd prefer to be able to view the console, so
# configure the logger to use UART0.
logger:
  hardware_uart: uart0
# Configure a separate UART peripheral on GPIO6/GPIO7 for the BL0942.
uart:
  id: bl0942_uart
  tx_pin: GPIO6
  rx_pin: GPIO7
  baud_rate: 9600
  stop_bits: 1
# Setup an output and associated switch for the relay on GPIO4.
output:
  - id: relay_output_1
    platform: gpio
    pin: GPIO4
switch:
  - id: ${channel_1_id}
    name: ${channel_1_name}
    platform: output
    output: relay_output_1
    device_class: outlet
    restore_mode: RESTORE_DEFAULT_ON
binary_sensor:
  # Binary sensors for the line-level switch input and the button on
  # the rear of the device.  These are commented out because I'm not
  # using them.
  #
  #- id: line_switch_input
  #  name: ${device_name} Switch
  #  platform: gpio
  #  pin: GPIO10
  #- id: shelly_1pm_button
  #  name: ${device_name} Button
  #  platform: gpio
  #  pin: GPIO1
  # Template binary sensors to use for my application-specific automations.
  - id: washer_running
    name: Washer Running
    platform: template
    icon: mdi:washing-machine
    device_class: running
  - id: drain_below_freezing
    name: Washer Drain Below Freezing
    platform: template
    icon: mdi:pipe-disconnected
# Configure an external DS18B20 sensor on GPIO19 to use for monitoring
# the temperature of the washer drain line.  We use the on_value_range
# events to setup automations to kill the washer at -2°C (28°F), which
# is far enough below freezing to begin worrying.  If that happens, we
# don't want to turn it back on until the temperature rises far enough
# above freezing to stop worrying -- 5°C (40°F) seems good.  We'll can
# also publish sensor states at the zero-cross (with a 0.1°C buffer to
# avoid thrashing) for surfacing in the Home Assistant UI.
one_wire:
  - platform: gpio
    pin: GPIO19
sensor:
  # 1-wire DS18B20 temperature probe
  - id: drain_temperature
    platform: dallas_temp
    address: 0xf4000007875cd674
    name: Washer Drain Temperature
    update_interval: 5s
    on_value_range:
      - above: 5
        then:
          - switch.turn_on: ${channel_1_id}
      - above: 0.1
        then:
          - binary_sensor.template.publish:
              id: drain_below_freezing
              state: OFF
      - below: -0.1
        then:
          - binary_sensor.template.publish:
              id: drain_below_freezing
              state: ON
      - below: -2
        then:
          - switch.turn_off: ${channel_1_id}
  # Internal NTC temperature sensor
  - id: ${device_id}_temperature
    name: ${device_name} Temperature
    platform: ntc
    sensor: ${device_id}_temperature_sensor_resistance
    icon: mdi:thermometer
    entity_category: diagnostic
    unit_of_measurement: °C
    accuracy_decimals: 1
    calibration:
      b_constant: 3350
      reference_resistance: 10kOhm
      reference_temperature: 25°C
  # Required for NTC sensor
  - id: ${device_id}_temperature_sensor_resistance
    platform: resistance
    sensor: ${device_id}_temperature_sensor_voltage
    configuration: DOWNSTREAM
    resistor: 10kOhm
  # Required for NTC sensor
  - id: ${device_id}_temperature_sensor_voltage
    platform: adc
    pin: GPIO3
    attenuation: 11db
  # Belling BL0942 Energy Monitor
  - platform: bl0942
    uart_id: bl0942_uart
    line_frequency: 60Hz
    voltage:
      name: Washer AC Voltage
    current:
      name: Washer AC Current
    power:
      name: Washer AC Power
      on_value_range:
        - above: 50
          then:
            - binary_sensor.template.publish:
                id: washer_running
                state: ON
        - below: 5
          then:
            - binary_sensor.template.publish:
                id: washer_running
                state: OFF
    frequency:
      name: Washer AC Frequency
      accuracy_decimals: 2
    update_interval: 5s