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Re: 3V3 digital signal to the cRIO
A couple of other possibilities:
-- Use an analog input, instead of a digital one (via the analog breakout board, I mention this mainly in case someone comes along, reads this, and wants something easy and quick)
-- Use an opto-isolator (this not only level shifts, but avoids potential problems with ground loops -- you probably don't need to worry about this, but it is very good to be aware of and on the lookout for this type of problem)
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