I am thinking of making a handheld app where I have to control a remote (50 feet through walls) stepper motor. What are some good transmitter/receiver modules I can use for this? Battery life is important and device will be in sleep mode most of the time.
Data rate can be around 2400 bps.
I was thinking of the sparkfun 315MHz transmitter module, but I could not get a firm yes or no answer on whether it is FCC certified. (I have asked Sparkfun customer support)
Any other ideas on what is the simplest, smallest RF module I can use? Should I go for Xbee?