Hello
I need some help, I would like to create a simple RF device.
This device would consist of a RF transmitter either 120vac or low voltage dc, and a low voltage dc receiver. When the Transmitter has power it will light a led light on the receiver and when it looses power the light will go out. I would also like the transmitter to be able to send a signal 200’ without line of sight. Any help that anybody can give me will be greatly appreciated.
Thank you
Mike
Hi mightyidi,
Welcome to the RobotShop Forum. A transmitter/receiver pair usually has no intelligence onboard. In order to have a light on the receiver powered in relation to the transmitter being able to send information, the transmitter will always need either always be sending information, or sending packets of information periodically. You would need a microcontroller at either end which is used to send information to the transmitter, and the other would receive information from the receiver and power the LED. 200 feet without line of stight is quite far, so you should only consider RF and XBee modules.
Hope this helps,