plant_watering.yaml

esphome:
  name: plant_watering
  platform: ESP8266
  board: d1_mini

wifi:
  ssid: !secret ssid
  password: !secret wifi_pass

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Plant-Watering"
    password: !secret ap_pass

captive_portal:

# Enable logging
logger:
#  baud_rate: 0
  level: WARN

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

ota:
  password: !secret ota_pass

web_server:
  port: 80

switch:
  - platform: gpio
    pin: D5
    name: "Water Pump"
    icon: "mdi:water-pump"
    id: "water_pump"
    on_turn_off:
      then:
        - delay: 1s
        - lambda: id(water_flow) = 0;
    on_turn_on:
      then:
        - lambda: id(water_flow) = 0;

sensor:
  - platform: pulse_counter
    pin: D6
    name: "Soil Moisture"
    update_interval: 60s
    filters:
      - lambda: return x / 60.0 * 32.0;
    unit_of_measurement: "Hz"
  - platform: ultrasonic
    trigger_pin: D1
    echo_pin: D2
    name: "Water Level"
    id: water_level
    icon: "mdi:tape-measure"
    unit_of_measurement: "m"
    update_interval: 1s
  - platform: template
    name: "Water Flow"
    id: water_flow_sensor
    icon: "mdi:water"
    lambda: return id(water_flow);
    update_interval: never
    unit_of_measurement: "ml"
  - platform: homeassistant
    name: "Volume Target"
    internal: True
    id: volume_target
    entity_id: input_number.watering_target_volume

binary_sensor:
  - platform: gpio
    pin: D7
    name: "Water Flow Binary"
    internal: True
    on_press:
      then:
        - lambda: |-
            id(water_flow) += 19.0 / 40.0;
            if (id(volume_target).state <= id(water_flow)) {
              id(water_pump).turn_off();
            }

interval:
  - interval: 1s
    then:
      - if:
          condition:
            lambda: 'return id(water_flow_sensor).state != id(water_flow);'
          then:
            - sensor.template.publish:
                id: water_flow_sensor
                state: !lambda 'return id(water_flow);'

globals:
  - id: water_flow
    type: float
    restore_value: no
    initial_value: '0.0'