When you first clamp your hands, mic detects the sound and triggers the 555 timer via the operational amplifier. The timer stretches the signal and applies it to the clock input of the flip-flop.

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 ...