This is a brilliantly simple smart lighting solution. But it’s also simplistic, lacking the advanced features that smart-home enthusiasts will want. There are ...

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 ...

I was raised in a household where turning off a light switch when one left a room was second nature. Being yelled at helped, having my parents take the light bulbs from my room and make me buy them ...

Most switch-mode power supplies rely on a PWM (pulse-width-modulated) output that is controlled via voltage feedback. A 555-timer IC can inexpensively perform PWM. The circuit in Figure 1 shows how to ...

Ever wonder if there was a way to put your PC on a timer like you would an oven or a microwave? Sure, you can set it to go to sleep or turn off the monitor, but what if you just want it to shut ...