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observer/subject input

I am trying to build something where I can click a button and have someone observe an object moving at various speeds. Any ideas on how I could use a button on the computer control the stop and start of an object? Are there an VI's out there for this?

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There are plenty of VIs that are designed to send and receive data and/or digital signals.  LabVIEW includes several example VIs on how to communicate with hardware.  You may want to look at this other forum thread that has examples and a description of the hardware set up.



How to find moving object/target displacement (how much X, how much Y) using a USB camera in an acquired set of images?:



Isaac S

Isaac S.
Applications Engineer
National Instruments
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