If you enjoy working with microprocessors such as the Arduino or Raspberry Pi and would like to host classes for 10 or more people, the $25-50 boards become expensive quickly. A UK-based electronics ...

[Teknynja] was looking for a way to control several discrete AC-powered devices using a microcontroller, and while he did consider the Powerswitch tail 2 from Adafruit, handling 5 devices would get ...