After a digital out put from your hobby RC reciver on the cheap? You could glue a microswitch to a servo, or you could read those servo commands using an ATTiny in the Arduino programming enviroment. Then you can control your digital outputs according to the position being sent, without the need for a servo!

Before jumping straight into reading pulse signals. Lets get started out with the basics of the ATTiny13.

Programming:

Coding:

Testing:

For the full write up, please take a look at my instructable.