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# Basic Config
esphome:
  name: double-outlet-plug
  platform: esp8266
  board: esp8285
  esp8266_restore_from_flash: true
  # Because the right button is analog, its value will change to unpredictable
  # values during the boot process.  We must wait until the boot process has
  # loaded all sensors.
  on_boot:
    # 600 did not work, 250 works, and values inbetween also did not work. As a
    # result, there is a delay between when you insert the plug into the wall
    # and when you can use the button for the right outlet.  This is the safest
    # option to restore the correct value at a minor inconvenience.
    # This appears to make the right button unavailable for the first 8 seconds.
    priority: 250.0
    then:
      globals.set:
        id: allow_analog_button_input
        value: 'true'

# These values may need to be calibrated per device to correct displayed values
# for amperage, voltage, and power.
substitutions:
  # You must get current and voltage correct before calibrating power.
  # Observered current resistor values from 2 units: 0.00113-0.0013
  current_resistor: '0.001215'
  # Observed voltage divider values from 2 units: 747-865
  voltage_divider: '806'
  # The value 'Power' shows by default is incorrect, to add a linear correction
  # place a known entity and set the calibration data here.
  calibration_pre_cal_power_value: '129.1'
  calibration_expected_correct_value: '60.0'

logger:
api:
ota:
web_server:
time:
  - platform: sntp
    id: the_time
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  ap:
    ssid: "Supernight Fallback Hotspot"
    password: !secret wifi_ap_password
captive_portal:

# We don't want to allow analog input until bootup is complete.
globals:
   - id: allow_analog_button_input
     type: bool
     restore_value: no
     initial_value: 'false'

# GPIO14 is the red LED for both the left and right buttons together.
# They cannot be controlled individually.
# The blue LEDs turn on automatically with each respective relay and cannot be
# controlled manually.
# The nightlight is attached to a physical light sensor and is not controlled
# by any IO and cannot be disabled by configuration.
status_led:
  pin:
    number: GPIO14
    inverted: true

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO1
      mode: INPUT_PULLUP
      inverted: true
    id: left_outlet_button
    on_press:
      - switch.toggle: relay_left_outlet

switch:
  - platform: gpio
    name: "Left Outlet"
    pin: GPIO3
    id: relay_left_outlet
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: "Right Outlet"
    pin: GPIO12
    id: relay_right_outlet
    # I'm unsure why, but the preference randomly saved incorrectly, and should
    # not be considered safe/reliable for the right outlet.
    restore_mode: RESTORE_DEFAULT_OFF

sensor:
  - platform: wifi_signal
    name: "wifi_signal"
  - platform: hlw8012
    sel_pin:
      number: GPIO13
      inverted: true
    cf_pin: GPIO5
    cf1_pin: GPIO4
    current_resistor: ${current_resistor}
    voltage_divider: ${voltage_divider}
    current:
      name: "Current"
    voltage:
      name: "Voltage"
    power:
      name: "Power"
      unit_of_measurement: W
      id: wattage
      filters:
        - calibrate_linear:
            # Map 0.0 (from sensor) to 0.0 (true value)
            - 0.0 -> 0.0 # No load
            - ${calibration_pre_cal_power_value} -> ${calibration_expected_correct_value}
    energy:
      name: "Energy"
      unit_of_measurement: "kWh"
      accuracy_decimals: 3
      filters:
        - multiply: 0.001
    update_interval: 60s
  # The right button is analog, and has a value of 4 when pressed and 1024
  # when not pressed.
  - platform: adc
    pin: A0
    id: analog_button
    raw: true
    # This needs to be short enough for the buttons to appear responsive.
    # 100ms was chosen because it seems sufficient for momentary detection.
    update_interval: 100ms
    # There is no real unit of measurement for this, and default V is confusing.
    unit_of_measurement: ""
    # Only trigger when the change is larger than the delta of 50.
    filters:
      - delta: 50
    on_value:
      lambda: !lambda |-
        if (id(allow_analog_button_input) && id(analog_button).state < 50)
        {
          // Right outlet button is being pushed.
          id(relay_right_outlet).toggle();
        }