I would like to make an rf remote to turn an led on and off. Does anyone know?
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Picaxe microcontrollers does what you want fairly cheap and does a LOT more as well. Good support forum too.
I'd just hack a cheap RC car and add a relay in place of the motor. Couldn't tell you how to scratch build one, though.
Great idea, I've seen the cheap rc stuff for less than $20.