Boolean simultaneous keyboard switch

Hi all

I am trying to create a sequence of security where two keys must be pressed at the same time and held for a time determined before a true condition has the value of a process to occur.

I have attached a vi with my trial. Currently, a single button press registers (one indicator lights up) instead of the two keys. I tried to use two loops separate (one for each key) but which has led to the same results. I inserted a 3 second wait before the loop to give time for the user to press the z and keys.

Any suggestions would be greatly appreciated!

Thank you

Chris

Version of LabVIEW is 8.6

Try this...

Tags: NI Software

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