Copy
substitutions:
  device_name: kogan_plug_1
  device_icon: mdi:power-socket-au
  device_restore: ALWAYS_ON
  
  # Higher value gives lower watt readout
  current_res: "0.00225"
  # Lower value gives lower voltage readout
  voltage_div: "805"

esphome:
  name: ${device_name}

esp8266:
  board: esp8285
  
# OTA flashing
ota:
  - platform: esphome

wifi: # Your Wifi network details
  
# Enable fallback hotspot in case wifi connection fails  
  ap:

# Enabling the logging component
logger:

# Enable Home Assistant API
api:

# Enable the captive portal
captive_portal:

binary_sensor:
  - platform: gpio
    pin:
      number: 03
      mode: INPUT_PULLUP
      inverted: true
    name: "${device_name}_button"
    on_press:
      - switch.toggle: relay

switch:
  - platform: gpio
    id: led
    pin:
      number: GPIO13
      inverted: true

  - platform: gpio
    name: "${device_name}_plug"
    pin: GPIO14
    id: relay
    icon: ${device_icon}
    restore_mode: ${device_restore}
    on_turn_on:
      - switch.turn_on: led
    on_turn_off:
      - switch.turn_off: led

sensor:
  - platform: hlw8012
    sel_pin:
      number: GPIO12
      inverted: true
    cf_pin: GPIO04
    cf1_pin: GPIO05
    current:
      name: "${device_name}_current"
      unit_of_measurement: A
    voltage:
      name: "${device_name}_voltage"
      unit_of_measurement: V
    power:
      id: ${device_name}_wattage
      name: "${device_name}_wattage"
      unit_of_measurement: W
    current_resistor: ${current_res}
    voltage_divider: ${voltage_div}
    change_mode_every: 8
    update_interval: 15s

  - platform: total_daily_energy
    name: "${device_name}_daily_energy"
    power_id: ${device_name}_wattage
    filters:
      - multiply: 0.001
    unit_of_measurement: kWh

time:
  - platform: homeassistant
    id: homeassistant_time

Copy
(...)
substitutions:
  current_res: "0.001" # visually verified the shunt resistor is 1m0
  voltage_div: "1720" # rough value, tested against multimeter readout
(...)
sensor:
  - platform: hlw8012
    (...)
    model: BL0937
(...)