I found that we could get the radio to reach the length of a 60ft bowling alley, but it worked best with one long range version as the receiver, and a standard module for transmitting.

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 ...

After making a small board for his transmitter, [Camilo] had a very small remote control, able to send button presses or other data to a remote receiver.

Targeted for the smart home, this design leverages two PIC MCUs that use a wireless RF transmitter/receiver to control up to six relays and monitor two analog signals.

Finisar's XFP-RF optical transmitter module is optimal for Dense Wavelength Division Multiplexing (DWDM) applications, which dramatically increase bandwidth over existing fiber infrastructure by ...