bd13
New Member
i want to be able to control some relays from some distance away, i have gotten some schematics on FM audio transmitters that transmit the distance i need, want i would like to know is if i could attach the encoder and decoder ICs here (HT-640,HT-648L) to the audio input and output on the tx/rx and have it work (control relays). i looked at the digrams of theoretical use of the ICs and i think you could just use the audio in on the transmitter as the data out on the ICs, please tell me if i'm wrong or crazy. thanks