Most often ultrasonic transducers are used for distance measurements, and in the DIY world, usually as a way for robots to detect obstacles. But for a weekend project, [Vinod.S] took the ultrasonic ...

It’s wasn’t so long ago that RC transmitters, at least ones worth owning, were expensive pieces of gear. Even more recently than that, the idea of an RC transmitter running an open source firmware ...

This series of projects explore concepts of radio communications. We use LEDs to generate (very high frequency) radio waves and photo-resistors to take the place of radio antennas. These ideas are ...

Microchip’s rfPIC microcontroller family includes the 18-pin rfPIC12C5O9AG which features an integrated 315/433MHz ASK transmitter, and the 20-pin rfPIC12C5O9AF which features an integrated 315/433MHz ...