I need Help Please....
I am trying to make a radio remote control, but all i find is at least 5CMx4CM. i need very small one. it would be with one channel.... i ll use them in garage doors and i found reciever... but i didnt find a small transmitter. help pls. do you know a adress for me or do youhave a circuit :?:

 

helpp plsss... all i want to do a small radio transmitter

 

I believe u can used google and come out with many transmitter designs. they could be easily rerouted till a smaller version.
a simple 3 stage transmitter Might be that small.

cheers

 

See this:

www.amazing1.com/security.htm