Latch to switch boolean conversion, or toggling flip flop in labview

I'm a labview newbie, and i've been scratching my head about a particular problem.
I want to use a joystick (11button, 3 axis) to operate 2 PI microscope stages in tandem. I am thinking about the best solution to this problem:
the joystick buttons provide latched booleans: they are only true while the button is held down. once the button is released, the boolean becomes false again.
I want to take this toggle and produce a true boolean the first time the button is pressed, and change that boolean to a false when the button is subsequently pressed.
My current idea is to try and construct something with either an occurance structure or notifier structure, or even something like a boolean to integer conversion then modulo-2 division.
Can anyone give me some pointers here?
thanks!
Solved!
Go to Solution.

zipmanx wrote:
From a programming standpoint, which is better to use? an event handler as trob has suggested, or something like an occurance or a notifier?
Here's another one: can you do a bitwise shift in labview?
Since you are reading hardware, you probably need to poll it, so an event is out.
Yes, you ca do bitwise shifts in LabVIEW. Look in the "numeric...data manipulation" palette.
Here's one possibility to solve your problem (LabVIEW 8.5). There are many other ways to do this, but you dfefinitely don't need any blue wires for the logic. .
Message Edited by altenbach on 12-01-2008 01:05 PM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
JoystickBoolean.PNG ‏6 KB
JoystickBoolean.vi ‏10 KB

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