test.yaml

esphome:
  name: test
  platform: ESP8266
  board: d1_mini

logger:
  level: DEBUG

external_components:
  - source: components

text_sensor:
  - platform: state_machine
    name: On/Off Toggle State Machine

state_machine:
  - name: On/Off Toggle State Machine
    states:
      - name: "OFF"
        on_enter:
          - output.turn_off: led1
          - logger.log: "5. [OFF] on_enter. [ON->OFF] after_transition should be called next"
        on_leave:
          - logger.log: "3. [OFF] on_leave. [OFF->ON] on_transition should be called next"
      - name: "ON"
        on_enter:
          - output.turn_on: led1
          - logger.log: "5. [ON] on_enter. [OFF->ON] after_transition should be called next"
        on_leave:
          - logger.log: "3. [ON] on_leave. [ON->OFF] on_transition should be called next"
    inputs:
      - name: TOGGLE
        transitions:
          - from: "ON"
            to: "OFF"
            before_transition:
              - logger.log: "2. [ON->OFF] before_transition. [ON] on_leave should be called next"
            on_transition:
              - logger.log: "4. [ON->OFF] on_transition. [OFF] on_enter should be called next"
            after_transition:
              - logger.log: "6. [ON->OFF] after_transition. done"
          - from: "OFF"
            to: "ON"
            before_transition:
              - logger.log: "2. [OFF->ON] before_transition. [OFF] on_leave should be called next"
            on_transition:
              - logger.log: "4. [OFF->ON] on_transition. [ON] on_enter should be called next"
            after_transition:
              - logger.log: "6. [OFF->ON] after_transition. done"
        on_input:
          - logger.log: "1. on_input. before_transition should be called next"
    diagram: mermaid

binary_sensor:
  - platform: gpio
    pin:
      number: D6
      mode: INPUT_PULLUP
      inverted: True
    name: "Button"
    filters:
      - delayed_on: 100ms
    on_press:
      - state_machine.transition: TOGGLE

output:
  - platform: gpio
    pin:
      number: D4
      inverted: True
    id: led1