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Sending signal to Arduino

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Hi 

I appreciate any help from this community, because I am almost new to Labview...

 

My Aim : I want to send digital output(square wave signal 5v on and  0v off state) to Arduino board from Labview, plus I want to change pulse duration and width and frequency in ms. 

 

Issue : I tried two program the first one(test1) worked but the second one(test2) does not send a signal to board. I used the second program because it allows me to generate my signal properly with every parameter adjusted but Unfortunately Arduino can not recieve the signal.

the issue with first program is that although it sends the signal to Arduino but I can not adjust my signal easily in time domain. for the test2 program I need the signal be recieved by Arduino.

 

test1.pngtest2.png

 


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