I have a project where I need a simple transmitter / receiver but I can not find anything that works.
I need the transmitter to work off of 12v and send a signal to a receiver that operates at 1.5 to 3.7 volts.
All the receiver needs to do is send power to some leds when it gets the signal, So Lights on when signal present and off when no signal present.
I’m limited on the battery power on the receiver side. I do not need to transmit any data. I need it to all multiple transmitters also. So if there were 5 transmitters on
and within range the light would still come on and would not go off until the last transmitter was out of range.
I need to get at least 300m range in open air. I would really appreciate some help with this. I got a simple rf transmitter pair that operates at 315mhz and it does turn on the light but
the receiver requires a min of 5v and my range is only about 100 yards.