A ping pong ball is used to make a reasonable LED diffuser by drilling a hole and inserting the LED which could make a nice system indicator using an RGB LED. The device is easy to construct due to ...

Blinky LED projects: we just can’t get enough of them. But anyone who’s stared a WS2812 straight in the face knows that the secret sauce that takes a good LED project and makes it great is the ...

If you reside in a metropolitan city, you’re likely looking for something to help you combat the ever-rising pollution levels. Pollution levels affect the air quality inside the house. This pollution ...

When you buy through our links, Business Insider may earn an affiliate commission. Learn more Whether you're getting into aromatherapy or want a signature scent without the open flame of the best ...