No doubt, this device will help you to locate your downed model RC planes. Similar to other traditional designs, this circuit plugs into a spare servo socket on the RC receiver. Since the alarm sounds ...

RC receivers are 5 VDC and draw very little current, so it’s even possible to power the whole arrangement from the USB port. On the software side, the Arduino sketch does about what you expect.

The transmitter/receiver combo are more actually referred to as transceivers. According to [Demetris], the radios on both the ‘ground side’ and ‘vehicle side’ can talk to each other on a ...