Shelly Plug S

GPIO Pinout

Pin	Function
GPIO0	Red LED
GPIO2	Blue LED
GPIO5	CF Pin
GPIO12	HLW8012 (power measurement)
GPIO13	Button
GPIO14	CF1 Pin
GPIO15	Relay
GPIOA0	Internal Temperature

Configuration as relay with overpower and overtemperature protection

When integration with home assistant exists, it will appear as a switch, 4 sensors (power, temperature, wifi strenght and total daily energy) When the max_power is exceeded, the relay will be switched off and a persistent notification will be created in home-assistant When the max_temp is exceeded, the relay will be switched off and a persistent notification will be created in home-assistant Thanks to Tasmota and Tijmen from this topic Config tested by gieljnssns

substitutions:
  devicename: shelly_plug_s
  channel_1: Relay
  ip: 192.168.xx.xx

  ssid: !secret ssid
  password: !secret password

  # Higher value gives lower watt readout
  current_res: "0.000943"
  # Lower value gives lower voltage readout
  voltage_div: "2066"
  # measure a relatively strong load and enter values measured by the device vs the values your reference measurement provided here
  power_cal_meas: "1710.0"
  power_cal_real: "1685.0"

  max_current: "10"
  max_power: "2400"
  max_temp: "70.0"

esphome:
  name: ${devicename}

esp8266:
  board: esp8285

wifi:
  ssid: ${ssid}
  password: ${password}
  manual_ip:
    static_ip: ${ip}
    gateway: 192.168.xx.xx
    subnet: 255.255.255.0
    dns1: 8.8.8.8
    dns2: 8.8.4.4

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: ${devicename}
    password: ${password}
    manual_ip:
      static_ip: 192.168.100.2
      gateway: 192.168.100.1
      subnet: 255.255.255.0
      dns1: 8.8.8.8
      dns2: 8.8.4.4

captive_portal:

# Enable logging
logger:
  level: DEBUG

# Enable Home Assistant API
api:
  encryption:
    key: !secret api_key

ota:
  password: ${password}

web_server:
  port: 80

time:
  - platform: sntp
    id: my_time

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO13
      inverted: True
    name: "${devicename}_button"
    on_press:
      - switch.toggle: relay

status_led:
  pin:
    number: GPIO02
    inverted: True

output:
  - platform: gpio
    pin: GPIO00
    inverted: true
    id: led

switch:
  - platform: gpio
    pin: GPIO15
    id: relay
    name: "${channel_1}"
    on_turn_on:
      - output.turn_on: led
    on_turn_off:
      - output.turn_off: led

sensor:
  - platform: wifi_signal
    name: "${devicename} WiFi Signal"
    update_interval: 300s

  # NTC Temperature
  - platform: ntc
    sensor: temp_resistance_reading
    name: ${devicename} temperature
    unit_of_measurement: "°C"
    accuracy_decimals: 1
    icon: "mdi:thermometer"
    calibration:
      b_constant: 3350
      reference_resistance: 10kOhm
      reference_temperature: 298.15K
    on_value_range:
      - above: ${max_temp}
        then:
          - switch.turn_off: relay
          - homeassistant.service:
              service: persistent_notification.create
              data:
                title: Message from ${devicename}
              data_template:
                message: Switch turned off because temperature exceeded ${max_temp}°C
  - platform: resistance
    id: temp_resistance_reading
    sensor: temp_analog_reading
    configuration: DOWNSTREAM
    resistor: 32kOhm
  - platform: adc
    id: temp_analog_reading
    pin: A0

  - platform: hlw8012
    model: BL0937
    sel_pin:
      number: GPIO12
      inverted: true
    cf_pin: GPIO05
    cf1_pin: GPIO14
    current_resistor: ${current_res}
    voltage_divider: ${voltage_div}
    current:
      name: "${channel_1} current"
      unit_of_measurement: "A"
      accuracy_decimals: 3
      icon: mdi:flash-outline
      on_value_range:
        - above: ${max_current}
          then:
            - switch.turn_off: relay
            - homeassistant.service:
                service: persistent_notification.create
                data:
                  title: Message from ${devicename}
                data_template:
                  message: Switch turned off because current exceeded ${max_current}A
    voltage:
      name: "${channel_1} voltage"
      unit_of_measurement: "V"
      icon: mdi:flash-outline
    power:
      name: "${channel_1} power"
      id: power
      unit_of_measurement: "W"
      filters:
        - calibrate_linear:
            - 0.0 -> 0.0
            - ${power_cal_meas} -> ${power_cal_real}
      icon: mdi:flash-outline
      on_value_range:
        - above: ${max_power}
          then:
            - switch.turn_off: relay
            - homeassistant.service:
                service: persistent_notification.create
                data:
                  title: Message from ${devicename}
                data_template:
                  message: Switch turned off because power exceeded ${max_power}W
    update_interval: 10s

  - platform: total_daily_energy
    name: "${channel_1} daily energy"
    power_id: power
    filters:
      # Multiplication factor from W to kW is 0.001
      - multiply: 0.001
    unit_of_measurement: kWh