esphome:
  name: watermeter
  friendly_name: "Water meter"
  area: "Laundry"

  project:
    name: dasfoo.watermeter
    version: "1.0"

packages:
  device_base: !include templates/esp8266.yaml
  sensor: !include templates/esp8266-vcc.yaml

sensor:
- platform: pulse_meter
  # Our meter (USLF20) is rated Q3=4.0 (m3/h).
  # The official one is rated 5.0 (assuming also Q3).
  # There's no Q4 value available.
  #
  # 3600 / 5000 = 0.72 seconds per liter. That's the shortest
  # pulse length at a normal flow rate for the meter. Assuming
  # 5x worst case, take 100ms as a reasonable margin.
  internal_filter: 100ms
  # Assuming Q1=70 (l/h), a flow with 52 second between pulses
  # is beyond the measuring capabilities.
  timeout: 1min
  pin:
    number: D2
    inverted: true
    mode:
      input: true
      pullup: true

  name: "Incoming water flow"
  unit_of_measurement: "L/min"
  state_class: "measurement"

  total:
    name: "Incoming water total"
    unit_of_measurement: "L"
    device_class: "water"
    state_class: "total_increasing"