Quote:
Originally Posted by DohertyBilly
Because of this, we used the 4 leftover digital I/O ports on the sidecar to just send a binary number to the arduino, which changed the pattern based on that.
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We decided to do the same thing because we had a lot of leftover I/O pins (we use six of them for the LEDs). I was thinking about trying I2C but the cRIO would not cooperate in the limited amount of time I had, so it seemed more reliable just to use digital I/O.
Its good to know that the AdaFruit libraries disable I2C, because that could have caused lots of headaches.