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???
It`s very easy to achieve this. You just need some steps
1. Make a Labview file (*.vi) including COM, Serial Read, Serial Close, et al;
2. Write relative codes on Arduino IDE with serial communication.
Remember to establish the map between Labview and Arduino, for example, you send character 'G' by Labview to Arudino, then Arudino reads this and run the corresponding codes.
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