esphomeyaml:
  on_boot:
    then:
      # Set servo to idle position on boot
      - output.set_level:
          id: servo
          level: 7.5%

output:
  - platform: esp8266_pwm
    id: servo
    frequency: 50Hz
    pin: D1
    # Servos operate at 50Hz with pulse width modulated signal
    # Their duty cycle determines the level.
    # Range is from 3% duty cycle to 12% duty cycle
    # 7.5% is idle level (according to arduino docs, also depends on
    # servo motor)

cover:
  - platform: template
    name: "Template Cover"
    optimistic: true
    open_action:
      # Roll in one direction
      - output.set_level:
          id: servo
          level: 5%
      # Wait a bit
      - delay: 30s
      # Return to idle position
      - output.set_level:
          id: servo
          level: 7.5%
    close_action:
      # Roll in other direction
      - output.set_level:
          id: servo
          level: 10%
      # Wait a bit
      - delay: 30s
      # Return to idle position
      - output.set_level:
          id: servo
          level: 7.5%
    stop_action:
      # Return to idle position
      - output.set_level:
          id: servo
          level: 7.5%