ESPhome configuration for the prober loop https://frog32.ch/blackbox-probing-home-assistant.html

loop.yaml

esphome:
  name: loop
  platform: ESP8266
  board: d1_mini

wifi:
  ssid: 'WLAN SSID'
  password: 'wlan password'
  domain: .lan

# Enable logging
logger:

api:
  password: '12345678'

ota:
  password: '12345678'


switch:
  - platform: template
    name: "ping"
    lambda: 'return false;'
    turn_on_action:
      - output.turn_on: out_pin
      - delay: 1000ms
      - output.turn_off: out_pin
  - platform: template
    name: "ping_zha"
    lambda: 'return false;'
    turn_on_action:
      - output.turn_on: out_pin_zha
      - delay: 1000ms
      - output.turn_off: out_pin_zha
binary_sensor:
  - platform: gpio
    pin: D6
    name: "pong"

output:
  - platform: gpio
    pin: D5
    id: out_pin
  - platform: gpio
    pin: D7
    id: out_pin_zha