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For me, at least, this is the last piece of the open hardware X10 puzzle. In this blog you'll find open hardware projects that receive and transmit PLC (powerline) signals, as well as transmitting X10 RF signals (via the CM17A). Now sitting in front of me, is an off the shelf 315MHz receiver (detuned to 310Mhz), happily beeping away each time a warm body crosses an X10 motion detector.
The receiver is from Sparkfun, but any similar receiver should work. The key is to get one with a tuning slug as opposed to a crystal. The software that interfaces the receiver to the Arduino is from a suite of X10 libraries written by ThomasM. You can find the whole suite (PLC transmit & receive, RF receive, and IR receive) here. Having written an earlier version of PLC receive, I'd recommend his version.
So lets get started. Get a 315MHz receiver, wire it up per the data sheet, get the libraries and Thomas's example sketch, and press a key on an X10 RF remote. It should work right away, but only at close range.
The receiver is from Sparkfun, but any similar receiver should work. The key is to get one with a tuning slug as opposed to a crystal. The software that interfaces the receiver to the Arduino is from a suite of X10 libraries written by ThomasM. You can find the whole suite (PLC transmit & receive, RF receive, and IR receive) here. Having written an earlier version of PLC receive, I'd recommend his version.
So lets get started. Get a 315MHz receiver, wire it up per the data sheet, get the libraries and Thomas's example sketch, and press a key on an X10 RF remote. It should work right away, but only at close range.
