I'm thinking about a project similar to the home-automation systems etc... Few problems came in the way, The cost of the Arduino radio receivers/transmitters is huge, especially if I need few of them, cheap low qualities are available, although not reliable for long range. my question is is it possible to make an AM / FM transmitter and receiver, connect them somehow to the Arduino, and make use of the received info?
making an FM transmitter etc... isn't that difficult but how to connect it to the Arduino and make the Arduino understand the incoming info?
any helpful infos are appreciated, thanks