Every time I try to run my VI (created an auto-focus mechanism for a PoC device) I need to write down a stepper number and I don't know why. Without changing the COM ports, if I try to run the VI again, I have to find the new stepper number (apparently it changes every time I try to run the VI) and this is a problem because I want this auto-focus mechanism to be fully automated and cheap (that is why I am using an Arduino interface and a cheap stepper motor).
Now, to the question: What is this stepper number and how can I just create a constant or something like that to run my VI without problems?
- I have attached an image of the NI example of an Arduino stepper motor controller VI
- I will be here to add more info if needed
Thanks in advance for your attention!
https://forums.ni.com/t5/LabVIEW-Interface-for-Arduino/Arduino-Example-Stepper-Motor-Example/ta-p/3522948
dear see this :
https://www.youtube.com/watch?v=IvRTT_NHsk0
I believe I didn't make myself clear: I am able to work with the stepper motor, that is not the problem. The problem is that every time I run the program, I have to find a new stepper #. I just want to know what is that (the stepper #) in order to find a solution to my problem.
Thanks,
Victor
Still its not clear whether the COM port number changes or not when its running???
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