Strictly speaking, a Theremin uses a pair of antennae that act as capacitors in a specific R/C circuit. Looking at ...

Sonair is pushing towards a new sensor built on 3D ultrasonic technology, giving autonomous robotics the power to see and make the right decisions. Ralph W. Bernstein is the senior business developer ...

Halloween is right around the corner and just about every Halloween project needs some kind of motion sensor. Historically, we’ve used IR and ultrasonic sensors but [Makers Mashup] decided to use an ...