Make sure you can use the linux device that represents your usb-to-serial module, /dev/ttyUSB0 in my case: It should return something like my sonoff pow r2: esptool.py v2.8 Serial port /dev/ttyUSB0 ...

Companies like Sonoff are basing entire home automation product lines around the inexpensive WiFi card. What this means for most of us is that there’s now an easily hackable and readily ...

If you are in mixed mode, locally supported devices can be blocked at your firewall and will use local only mode POW/POWR2 in local mode ... as Local or Mixed Mode support local polling Bridge ...

This is what [Scrand] did in his IoT dryer build. The secret behind the hack is the Sonoff POW, a small device that sits in between the wall and the dryer. It has a relay in it that controls it ...