ESP8266-WiFi-Socket-NG

Alternative Firmware for https://www.obi.de/hausfunksteuerung/wifi-stecker-schuko/p/2291706

Precompiled Firmware

Find the precompiled firmware in the firmware directory.

Compile

This is a PlatformIO project.

Firmware Reset

1. Power on the WiFi Socket (plug in)
2. Press down and hold the Power-Button during the first 5s
3. Release Power-Button when the WiFi LED starts rapidly fast blinking
4. The firmware reset ends after about 30s indicated by a permanent WiFi LED on.

Default Settings

After a firmware reset the following values are set.

	value	description
WiFi SSID	WifiSocket-esp id	SSID in accesspoint mode
IP Address	192.168.192.1	ip address in accesspoint mode
Admin password	admin	Setup admin password
OTA Hostname	wifi-socket-1	Over The Air hostname
OTA Password	otapass	OTA firmware upload password
OpenHAB Callback Enabled	false
OpenHAB Version	1	Callback for OpenHAB version 1 or 2
OpenHAB Item Name	WifiSocket1
OpenHAB Host	192.168.1.1
OpenHAB Port	80
OpenHAB Use Authentication	false
OpenHAB User	user
OpenHAB Password	password
Alexa enabled	false
Alexa devicename	Socket	Devicename for Alexa HA
MQTT Enabled	false
MQTT ClientId	WifiSocket1
MQTT Host	192.168.1.1
MQTT Port	80
MQTT Use Authentication	false
MQTT User	user
MQTT Password	password
MQTT In Topic	socket1/in	receiving commands
MQTT Out Topic	socket1/out	sending callback

Hardware

OBI Wifi Stecker Schuko

OpenHAB

OpenHAB - HTTP Binding sample

Switch LivingRoom_Power "Living Room Outlet" {http=">[ON:GET:http://wifi-socket.ip/on] >[OFF:GET:http://wifi-socket.ip/off]"}

If you like to read the state of the socket by OpenHAB. First create a file getState.js in the transform directory with the following content:

JSON.parse(input).state;

add

<[http://wifi-socket.ip/state:30000:JS(getState.js)]

to the Switch definition. Every 30s the state of the socket will be checked.

OpenHAB - MQTT binding sample

Switch LivingRoom_Power "Living Room Outlet" {mqtt=">[broker1:socket1/in:command:*:default], <[broker1:socket1/out:state:default]"}

References

• PlatformIO
• Arduino core for ESP8266 WiFi chip
• Async TCP Library for ESP8266
• Async Web Server for ESP8266 and ESP32
• FauxmoESP - Amazon Alexa support for ESP8266 and ESP32 devices
• Arduino-pubsubclient - A client library for the ESP8266 that provides support for MQTT
• Pure.CSS - A nice CSS, as GZIP it is less than 4k so it is useful for embedded devices