gate.yaml

esphome:
  name: gate
  platform: ESP8266
  board: d1_mini_pro
  on_boot:
    then:
      # Set/get initial states
      - binary_sensor.template.publish:
          id: automation_safety
          state: OFF
      - binary_sensor.template.publish:
          id: heading_comparison
          state: OFF
      - component.update: battery_level

web_server:
  port: 80

logger:
  level: NONE
  
wifi:
  networks:
  - ssid: SSID1
    password: PSK
  # Mobile Hotspot for troubleshooting
  - ssid: SSID2
    password: PSK

ota:
  safe_mode: True
  password: esphome_recovery

i2c:
  sda: D2
  scl: D1
  scan: False

script:
  - id: gate_toggle
    then:
      if:
        condition:
          and:
            # Make sure we aren't triggering too rapidly
            - binary_sensor.is_off: automation_safety
            # Make sure gate is closed or else we won't trigger
            - binary_sensor.is_off: gate_status
        then: 
          - binary_sensor.template.publish:
              id: automation_safety
              state: ON
          - switch.toggle: gate
          - delay: 120s
          - binary_sensor.template.publish:
              id: automation_safety
              state: OFF

mqtt:
  broker: SERVER
  username: gate
  password: PASS
  log_topic:
  on_message:
    - topic: cmd/gate
      then:
        - switch.toggle: gate
  
sensor:
  - platform: qmc5883l
    address: 0x0D
    heading:
      id: heading
    data_rate: 10Hz
    range: 200uT
    oversampling: 512x
    update_interval: 1s

  # Template sensor to keep average of last 15 heading
  # readings so we can detect significant change
  - platform: template
    id: heading_average
    update_interval: 1s
    unit_of_measurement: "°"
    lambda: return id(heading).state;
    filters:
      - sliding_window_moving_average:
          window_size: 15
          send_every: 1
    on_value:
      then:
        if:
          condition:
            and:
              - for:
                  time: 3s
                  condition:
                    binary_sensor.is_on: heading_comparison
              # This is intentionally duplicated
              - binary_sensor.is_off: automation_safety
          then:
            - script.execute: gate_toggle
  
  - platform: adc
    pin: A0
    id: battery_level
    name: "Gate Battery Voltage"
    update_interval: 600s
    accuracy_decimals: 4
    filters:
      - multiply: 15.43

  - platform: uptime
    name: "Uptime"

binary_sensor:
  # Sensor to keep script from triggering in rapid succession
  - platform: template
    name: "Automation Safety"
    id: automation_safety

  # This is what is used to trigger the automation
  - platform: template
    name: Heading Comparison Trigger
    id: heading_comparison
    # Set our trigger to true if heading varies from avg more than 2.5deg 
    lambda: |-
      if (id(heading).state > id(heading_average).state + 2.5) {
        return true;
      }
      if (id(heading).state < id(heading_average).state - 2.5) {
        return true;
      }
      else {
        return false;
      }

  # Magnet sensor to get real-world state
  - platform: gpio
    pin:
      number: D7
      mode: INPUT_PULLUP
    name: Gate Status
    id: gate_status
    device_class: door
    filters:
      - delayed_on: 1s
      - delayed_off: 1s

switch:
  - platform: restart
    name: "Reboot"
    
  # Actual GPIO output
  - platform: gpio
    id: relay
    pin:
      number: D8
      inverted: False
  
  # Switch which toggles the relay on and off
  - platform: template
    id: gate
    name: "Gate Remote"
    icon: "mdi:gate"
    turn_on_action:
    - switch.turn_on: relay
    - delay: 500ms
    - switch.turn_off: relay

text_sensor:
  - platform: wifi_info
    ip_address:
      name: "IP Address"