Arduino Reads PWM from RF-Receiver

Forum 2005-2010 (read only) Hardware Interfacing
1

Hi guys,
I was reading through all these Arducopter and DiyDrones GPS stuff and was very interested in the projects that have been done.
Unfortunately my RC-Equipment does not have PPM or PCM signals and I don't want to open my Receiver.

So now I had an other idea: I want to read the actual data coming from the rc receiver (should be PWM to drive the servos) ... then do some "magic" with the arduino (whatever i want to do) and then put the modified PWM signal out to the Servos.

I found many threads about controlling servos with a PWM signal but not a single tread about READING PWM data into the arduino.

Could somebody help me please?

Cheers Chris

2

Hi Chris,

This thread discusses a few methods for processing the signal from a radio control receiver: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1204020386/0

The original poster used a pcm receiver, if your is standard 1-2ms pulse position modulation (often referred to as PWM) then your implementation could be the simpler 'or gate' method mentioned, rather than the more complex multiplexer discussed in detail. If you have any questions on this, please do post them here and I will till try to help.