Here is a simple and low cost automatic bathroom light circuit. The light automatically turns on when the bathroom door is opened, and remains lit in the occupied state. When the door is opened again ...

When you want to make your lights smarter without changing the bulbs, you’re likely looking at upgrading to a smart light switch. One of the more vital functions of a smart switch is its ability to ...

The Belkin WeMo Light Switch replaces most single wall-mounted on/off switches and lets you control your lights from anywhere with an Internet connection. The switch connects to your home WiFi network ...

This is an improved version of Anthony Smith’s designs for a latch on/latch off switch (see the whole series below). The new design switches a 120VAC load, and includes several much-needed details on ...