One part wants 3.3V logic. Another wants 5V. What do you do? Over on the [Playduino] YouTube channel, there’s a recent video running us through a not-so-recent concern: various approaches to ...
If you live in a major city, you’ve probably seen a street performer with some variety of slapophone. It’s a simple musical instrument that typically uses different lengths of PVC pipe ...
Sound is usually something we hear, not something we touch. But researchers at Virginia Tech have found a way to turn acoustic waves into invisible “hands” that can grab, move, and guide tiny objects ...