But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance ... implemented using the Arduino’s Timer1. Those go to a circuit board he designed which ...

First-person-view (FPV) flying, by adding a camera, video transmitter ... and by adding a simple Arduino, the complete capabilities of this receiver can be unlocked. [garagedrone] put together ...

I recently searched for a digital FM transmitter kit ... get clipped and you’ll get piteous music at the receiver side). To transmit audio, just connect the audio source to LIN, RIN, and GND. Use the ...