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I need advice on Elec design

I have an idea for something and i am sure the technology is already there at least i think it is

Basicaly i need to have a transmitter lithium powered approx 1" round and no more than a 1/2 high that will send out a signal to a receiver when the receiver no longer receives the signal the receiver beeps. I would want the receiver to listen to up to 10 transmitters. Reasons that the receiver would no longer get a signal would be that the transmitter is out of range only. no data at all will be passed between the reciever and transmiters it is more like a ping "are you there", no then beep , yes do nothing.

both receiver and transmitters need to be battery operated.

anyone know how to do this?

please email me at cshrum @ pcscale dot com

thanks

Reply to
cshrum
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Just get some of these Canadian coins and build the receivers for them.

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Reply to
linnix

Yes, I've done it. Define "out of range".

Frank

Reply to
Frank Raffaeli

Out of range would be about 100 - 150 yards

this would be for out doors too

thanks

Reply to
cshrum

The transmitters would have to transmit something...

Reply to
TT_Man

It can transmit anything i suppose i just want to know when the connection is no longer communicating

Reply to
cshrum

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