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 ...

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 ...