Overview

The Sonoff device is a cheap $5 ESP8266 wifi enabled switch.

Pinout

Wiring the Sonoff to the serial cable

Flashing Sonoff using Arduino IDE

The Arduino project is located in Sonoff-Tasmota/sonoff/sonoff.ino.

• Copy Libs to Arduino libs folder

> cd Sonoff-Tasmota/lib

> cp -R * ~/Documents/Arduino/libraries/.

• Startup the Arduino IDE
• Open sonoff.ino
• Update parameters in user_config.h. These will be the default values for SSID, etc.

• Set Board Info

• Connect the Sonoff device to a USB port while holding down the button. This will put it in flash mode.

• Select the serial port of the Sonoff device

• Upload and you are done.

See https://github.com/arendst/Sonoff-Tasmota/wiki/Arduino-IDE

Commands

http://HOST/cm?user=USER&password=PASSWORD&cmnd=Power%20TOGGLE

{"POWER":"OFF"}

{"POWER":"ON"}

{"POWER":"ON"}

{"POWER":"OFF"}

{"POWER":"ON"}

{"FriendlyName1":"Sonoff"}

{"Status":{"Module":1,"FriendlyName":"Sonoff","Topic":"sonoff" 

,"ButtonTopic":"0","Power":0,"PowerOnState":3,"LedState":1

,"SaveData":1,"SaveState":1,"ButtonRetain":0,"PowerRetain":0}}

See https://github.com/arendst/Sonoff-Tasmota/wiki/Commands for the full list.

References