Remote-control switching uses radio-wave technology to turn household power to a specific appliance on or off. We couldn't believe it when we discovered how inexpensive these units were -- a mere $12.

The Raspberry Pi power switch provides a single button for both on and off just like most consumer electronic devices but can be wirelessly operated using the infrared remote control if desired.

We frequently get home automation tips, many of which have simple circuit-based on/off control for lights. [Paulo Borges] has created something quite different, however, with his in-the-wall servo-… ...