Dejan @ howtomechatronics.com shows how to make an Arduino based RC receiver:
Now these two devices can easily communicate and we can use them for controlling many things wirelessly. I will explain how everything works through few examples. In the first example we will use this Arduino RC receiver to control a simple car consisting of two DC motors. In the second example I will show you how to control brushless motors and servos, which are common components found in many commercial RC planes, boats, cars and so on. If we know how to control them, we can easily modify and control many RC models with our own custom-build Arduino transmitter.
As a third example I will show you how I modified and used this Arduino based RC system to control a commercial RC car.
More details on How To Mechatronics Project page.
Check out the video after the break.