This project uses an ESP32 to look for activity from a specific WiFi device, i.e. your Smartphone. As soon as said device leaves the reception area of the ESP32, a timeout begins to run in the background, and as soon as it hits zero, the ESP32 will cut the power from an attached wallsocket switch, which i.e. connects your soldering iron to the wall.
An saftey project to ensure that "problematic" devices are force-switched off as soon as you leave the area.
ESP32 Deadman Switch
4. Februar 2018 , Letztes Update: 4. Februar 2018