home_assistant_glow.yaml

---
# Home Assistant Glow
#
# Read your electricity meter by means of the pulse LED on your 
# meter, useful if you do not have a serial port (P1).
#
substitutions:
  device_name: home-assistant-glow
  friendly_name: House
  device_description: "Measure your energy consumption with the pulse LED on your smart meter"
  pulse_pin: GPIO12
  status_led: GPIO5
  # imp/kWh rate ⬇ #
  pulse_rate: '1000'

esphome:
  name: '${device_name}'
  comment: '${device_description}'
  project:
    name: "klaasnicolaas.home_assistant_glow"
    version: "2.0.0"
  platform: ESP32
  board: nodemcu-32s

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: '${device_name}'
    password: !secret fallback_password

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  password: !secret esphome_api_password

ota:
  safe_mode: true
  reboot_timeout: 10min
  num_attempts: 5

web_server:
  port: 80
  auth:
    username: !secret esphome_web_username
    password: !secret esphome_web_password

output:
  # - platform: gpio
  #   pin: GPIO5
  #   id: output_blue
  - platform: gpio
    pin: GPIO2
    id: output_red
  - platform: gpio
    pin: GPIO4
    id: output_green

light:
  - platform: binary
    internal: true
    id: led_red
    name: Red
    output: output_red

# Status LED for connection
status_led:
  pin:
    # Blue LED
    number: ${status_led}

# Sensors for ESP version and WIFI information
text_sensor:
  - platform: version
    hide_timestamp: true
    name: "${friendly_name} - ESPHome Version"
  - platform: wifi_info
    ip_address:
      name: "${friendly_name} - IP Address"
      icon: mdi:wifi
    ssid:
      name: "${friendly_name} - Connected SSID"
      icon: mdi:wifi-strength-2

sensor:
  - platform: pulse_meter
    name: '${friendly_name} - Power consumption'
    unit_of_measurement: 'W'
    state_class: measurement
    device_class: power
    icon: mdi:flash-outline
    accuracy_decimals: 0
    pin: ${pulse_pin}
    on_value:
      then:
        - light.turn_on:
            id: led_red
        - delay: 0.5s
        - light.turn_off:
            id: led_red
    filters:
      # multiply value = (60 / imp value) * 1000
      # - multiply: 60
      - lambda: return x * ((60.0 / ${pulse_rate}) * 1000.0);
    total:
      name: '${friendly_name} - Total energy'
      unit_of_measurement: 'kWh'
      icon: mdi:circle-slice-3
      state_class: TOTAL_INCREASING
      device_class: energy
      accuracy_decimals: 3
      filters:
        # multiply value = 1 / imp value
        # - multiply: 0.001
        - lambda: return x * (1.0 / ${pulse_rate});