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Re: GPIO Tolerance
From the datasheet for the DIO module at National Instruments
The module can take inputs with a voltage of –0.25 to 5.25 V
When the voltage exceeds 2.2 V, it is 'high'
High, VIH 2.2 V min
When the voltage falls below 0.8 V, it is a 'low'
Low, VIL 0.8 V max
Anything in-between is no-mans lands.
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Ed Barker
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