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-controlled light switch. This build ...

Now, get the replacement light switch ready, using its on-off labels to help you orient the unit right-side up. Next, starting with the hot wire, begin attaching the wires to the new switch.

So why not play it safe and make use of your light switch? Admittedly, it wasn’t because [Tyler Bletsch] didn’t want to mess around with AC directly, but rather out of necessity. You see ...

The light switch can be used for interior and exterior ... There's also a speaker, occupancy sensor, old-fashioned on/off button for the light, and an optional night light at the base that makes ...