Introduction

Years ago I built RF devices to measure temperatures and switch lights on and off. I have one book written about. Only I have always found it disturbing that you don't get any feedback from the RF switches about their status. Even then I thought it could be better and when the small ESP8266 processor boards came on the market with built-in WiFi hardware, it was possible!

Unfortunately, SONOFF beat me to it with their WiFi switches. A disadvantage of the SONOFF switches, however, is that the supplied firmware is not very good. To make them usable, you have to set up other firmware that is often integrated with a Domotica system that runs on a Raspberry Pi for example. Another drawback of the SONOFF switches is… well, they are switches (Switch OnOff). So there is room for improvement!

Therefore, I present to you: DONOFF (Dever OnOff)!

You can find an English translation of the post at www.aandewiel.nl