By rauld -
- Fri Feb 19, 2016 9:30 am #188260
I have made a wireless motion sensor to let me know if my dog is in the back yard. I have a receiver in the kitchen that lights up when the dog passes by the motion detector. I would like increase it for 4 areas of the house but I only see 315 and 433 MHz transmitters. Are there more frequencies available or am I going about this the wrong way.