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Recently I got cheap RF remote controlled plug points. I hacked the remote to control buttons using raspberry pi and it works great. My question is, is there any generic RF transmitter and receiver module? Receiving side, i want few GPIO pins so that we can control multiple motors or relays. I saw xbee modules, but they are very costly. Is there any such cheap RF transmitter receiver? Please help me how to go about it.

marked as duplicate by Piotr Kula, lenik, RPiAwesomeness, kolin, Impulss May 29 '14 at 22:37

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Most receivers require a microcontroller on the receiving end. The XBee already has a micro on board, so you can use it to directly turn on/off a pin on the xbee.

If you don't want to have to program some micro-controllers (e.g. arduino's), you best bet is to get some more remote-plugs.

If you don't want to use 220V, just crack them open, and reuse the board inside. You'll have to provide it with low dc-power yourself.

Instead of reusing the remote, you can use one of these modules to send the commands. enter image description here That way you are not limited to only 3/4 devices (depending on the remote you're using).

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