LED indicator lights

[nlknauss]

The students on my team created this legacy document on LEDs for future students. Feel free to check it out. I think they've also posted code to the Github.

http://stormroboticsnj.org/resources/software/

[tickspe15]

We started using outputs on the PCM for indicator led control this year. It was much easier, lighter, and cheaper than spikes or arduinos that we have used in the past.

[evanperryg]

We didn't do it on our competition bot this year (weight problems) but we were going to use three DIOs on the rRIO MXP port to act as a 3-bit binary input to an arduino. From there, the Arduino drove a pair of WS2801 RGBLED strips, like those AndyMark used to sell.