NOTE: We have written an Instructable to change the firmware of the SONOFF by using the ARDUINO IDE.

Overview 

The Sonoff is basically an ESP8266 wifi chip with a relay added to it. For it's price its a great little product to experiment in low cost home automation.

Home automation is "The Internet of Things". The way that all of our devices and appliances will be networked together to provide us with a seamless control over all aspects of our home and more.

Sonoff is a low-cost, affordable device that help you to step into the amazing smart home.It is a WiFi wireless switch that can connect to appliance of different types and brands. Sonoff sends data to cloud platform through the WiFi Router, which enables you to remotely control all appliances with the App eWeLink on your smart phone. The server of Sonoff is Amazon AWS global server.

Sonoff makes all your home appliances smart, as long as your phone has network you can remotely turn on or turn off your appliances from anywhere at any time. And by setting timing schedules for your appliances, you can maintain a carefree life.

The App eWeLink enables you to control your devices easily. You can download the iOS version in App Store and the Android version in Google Play.

Specifications

• Screw terminal Input voltage: 7 - 32 VDC
• Micro USB input voltage: 5 VDC
• Android or IOS app
• Rated switching current DC: up to 10A@250v
• Rated switching current DC: up to 10A@30v
• Wifi standard: 2.4 GHz b/g/n
• Include user gide with E-Welink app