Just because a company made it doesn’t mean you can’t open it up – and possibly put MicroPython on it 😉
Sonoff is a device line for Smart Home developed by ITEAD. One of the most flexible and inexpensive devices from that line are Sonoff Basic and Sonoff Dual. These are Wi-Fi enabled switches based on a great chip, ESP8266.
While the Sonoff infrastructure may work quite well for basic users, others may want to hack into that hardware and run their own code on it. The hardware of Sonoff Smart Switches is amazing, considering its low price:
ESP8266 with 1MB flash
220V AC integrated power adapter
10A Relay (or two in Sonoff Dual)
Onboard LED (or two in Sonoff Dual)
If you want to take a full control over this hardware using your favorite programming language, this tutorial is for you.