I’m looking for a way of activating some electronics from a moderately short distance (50 foot range should be sufficient). I’m thinking of using some sort of RF transmitter/receiver. Does anyone have any ideas for something I can buy or hack for this? I’ve thought about using a garage remote, but I’m not sure what I’d put on the receiving end.
AdaFruit has a few key fob type transmitters and differing receivers. Read about them here …
http://www.adafruit.com/products/1096
http://www.adafruit.com/products/1391
I suppose you could also hack an RF doorbell.