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A raw PWM signal is either ON or OFF for varying amounts of time so therefore with a 5v source you will read either 0V or 5v depending on where you sample the signal.
To read an anlogue voltage the PWM signal would need to filtered with a resistor and capacitor to smooth it to an analogue voltage.
Keith
www.diyha.co.uk
www.kat5.tv
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That was kind of what I was thinking, but it has been 5 years since college now and I have forgotten how to do all that. I actually found a better way. I am using the pulsin command to measure the on time. Seems a lot more accurate and quicker. Thanks for the advice.
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