globals:
  - id: total_pulses
    type: int
    restore_value: false
    initial_value: '2497'

binary_sensor:
  - platform: gpio
    id: internal_pulse_counter
    pin: GPIO32
    internal: true
    filters:
      - delayed_off: 100ms
    ## This automation will be triggered when a button press ends,
    ## or in other words on the falling edge of the signal.
    on_release: 
      then:
        - lambda: id(total_pulses) += 1;

sensor:
  - platform: template
    name: "Gas used"
    device_class: energy
    unit_of_measurement: "m³"
    state_class: "total_increasing"
    icon: "mdi:fire"
    accuracy_decimals: 2
    lambda: |-
        return id(total_pulses) * 0.01;