Chapter 4: Programming the Rhino2
4.4.9.2 Active States
The input pins can be set to the following active states:
Low - Input is active when pulled down, inactive when open or pulled up
High - Input is active when pulled up, inactive when open or pulled down
Open - Input is active when open, inactive when pulled up or pulled down
Low or High - Input is inactive when open, active when pulled up or pulled down
Low or Open - Input is inactive when pulled up, active when open or pulled down
High or Open - Input is inactive when pulled down, active when open or pulled up
To pull up an input, connect it to B+. To pull down an input, connect it to B-.
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