Quelltext der Seite BW-SS4

===== flashen: =====
[[Datei:BW-SS4 UART.jpg|rahmenlos]]<br>
Zum einmaligen flashen GND und IO0 verbinden

===== GPIO Belegung: =====

{| class="wikitable"
|-
! GPIO !! Funktion
|-
| GPIO5 || Relay
|-
| GPIO4 || Led
|-
| GPIO13 || Button
|}

===== ESPhome config: =====

<syntaxhighlight lang="YAML">
substitutions:
  plug_name: bw_ss4

esphome:
  name: ${plug_name}
  platform: ESP8266
  board: esp8285

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
  fast_connect: true

logger:

web_server:
  port: 80

api:
  password: !secret api_password

ota:
  password: !secret ota_password

time:
  - platform: homeassistant
    id: homeassistant_time

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO13
      inverted: True
    name: "${plug_name}_Button"
    on_press:
      - switch.toggle: relay

switch:
- platform: gpio
  name: "${plug_name}_Relay"
  id: relay
  pin: GPIO5
  restore_mode: ALWAYS_ON

- platform: gpio
  name: "${plug_name}_Led"
  id: led
  pin: GPIO4
  inverted: True
  restore_mode: ALWAYS_OFF

sensor:
  - platform: uptime
    name: ${plug_name}_Uptime Sensor
</syntaxhighlight>