“In this article I describe how we made an hour glass with leds as the sand. We were always interested in making something that visually flows like sand and decided to use an hour glass to start. The movement is not completely fluid given the resolution of the amount of pixels, but it does resemble sand falling down and reacts to tilting and orientation changes. Keep reading and watch the video to find out how we did it!
ws2812b led strip
5v power supply