ESPHome_Config/bedroom-switch.yaml

#SONOFF T1 EU/UK (1 button)
#https://www.banggood.com/SONOFF-T1-EU-or-UK-AC-100-240V-1-or-2-or-3-Gang-TX-Series-WIFI-Wall-Switch-433Mhz-RF-Remote-Controlled-Wifi-Switch-Smart-Home-Switch-Works-With-Alexa-Google-Home-p-1470883.html?rmmds=myorder&cur_warehouse=UK&ID=6278514

esphome:
  name: bedroom_switch
  platform: ESP8266
  board: esp01_1m

wifi:
  ssid: !secret wifi-ssid
  password: !secret wifi-password

logger:
api:
ota:

# This is the button on the switch
# It is no longer published to home assistant, it is instead used by esphome to
#       update the state of a "virtual" sensor. This is how I distinguish
#       between a single, double and hold push
binary_sensor:
  - platform: gpio
    name: "Bedroom Sensor"
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: True
    filters:
      - delayed_on: 30ms
      - delayed_off: 30ms
    internal: True
    on_multi_click:
      # Single
      - timing:
          - ON for at most 1s
          - OFF for at least 0.5s
        then:
          - text_sensor.template.publish:
              id: bedroom_button
              state: !lambda 'return "single";'
      # Double
      - timing:
          - ON for at most 1s
          - OFF for at most 1s
          - ON for at most 1s
          - OFF for at least 0.2s
        then:
          - text_sensor.template.publish:
              id: bedroom_button
              state: !lambda 'return "double";'
      # Hold
      - timing:
          - ON for 1s to 3s
          - OFF for at least 0.5s
        then:
          - text_sensor.template.publish:
              id: bedroom_button
              state: !lambda 'return "hold";'
    # There is a bit of a delay between pushing the button on the switch and
    #       the light turning on. This is for 2 main reasons:
    #       * There is a bit of a delay for the switch to decide if a single or
    #            double press was wanted
    #       * The smart bulbs take a little while to turn on
    # To give some instant feedback to the user, I re-purpose the wifi light.
    #       Whenever the touchpad is being pushed, the light is on.
    # This makes it clear that the push has been registered.
    on_press:
      then:
        - output.turn_on: blue_led
    on_release:
      then:
        - output.turn_off: blue_led

# This switch gives electrisity to the bulb. We want it on all the time really
switch:
  - platform: gpio
    name: "Bedroom Relay"
    pin: GPIO12
    restore_mode: ALWAYS_ON

# This is the blue wifi led.
# It is used above to determine whether or not a push is registered
output:
  - platform: esp8266_pwm
    id: blue_led
    pin: GPIO13
    inverted: True

# This sensor is published to homeassistant with the value:
#       * single
#       * double
#       * hold
# This can be used to trigger automations by type "state"
text_sensor:
  - platform: template
    name: "Bedroom Touchpad"
    id: bedroom_button
    icon: "mdi:toggle-switch"
    on_value:
      then:
        - if:
            condition:
              text_sensor.state:
                id: bedroom_button
                state: ""
            else:
              - delay: 20ms
              - text_sensor.template.publish:
                  id: bedroom_button
                  state: !lambda 'return "";'