Analog potentiometer to counter

[RyanShoff]

I finally got the AnalogTriggers working well counting rotations.

I was using these pots:
http://www.mouser.com/ProductDetail/...1hvDsngmWGdg==

The key was reducing the sample rate to 1000 Hz.

this->GetModule()->SetSampleRate(1000);

This value was determined experimentally.

At the max rpm of the sensor (500 rpm) that is still 120 samples per rev.

I tested two implementations. Both worked fine.

One used the rising/falling pulse feature to catch the rollover.

The other used two AnalogTriggers to convert the pot to a quadrature signal. That was fed into an Encoder object.

Code is here:
https://github.com/FRC-Team-4143/TMW...hannelVolt.cpp