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Hello friends.

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Today I will tell you how to use visa for serially right data.

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So for that purpose I just use over here as you see Arduino Uno board, it is connected to my PC and

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over here I have one led.

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So using LabVIEW, I just write some serial data and according to that my Led turn on and off.

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So I just first tell you the code.

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So in that case you just need to develop two codes, one for Arduino and one for LabVIEW.

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So as you see over here, first I use a variable Led and I assign this Led seven.

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So I just use digital PIN seven.

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As you see over here, this is my positive pin red one.

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It is connected to the positive pin of Led and then I just another variable var one, var one, then

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Voidsetup serial begin.

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And over here the baud rate is 9600 for Arduino Uno.

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Then I have to set the pin mode.

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In this case the Led is working as a output.

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I assigned this digital pin as a output pin.

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Then over here I have loop void loop.

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If serial available serial data is available, it will read, then it will just go for the variable

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one.

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Basically, the serial data is available with variable one and it will read serial read and in the serial

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read.

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If the variable one is equal to a, in that case it will generate high signal.

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Otherwise it will generate low signal.

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Okay, so this is the code for Arduino.

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I just go to the tools, set the port Arduino Uno, then I have to just run the code.

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So as you see on the Arduino run right now, the uploading is done.

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So I just want to do it again.

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Let's check it is done or not.

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As you see, done uploading.

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So right now I just close this code.

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My Arduino have a code.

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It will just go for the serial read function.

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And if it get a then it will turn on the Led.

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Otherwise it will turn off the Led.

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So I just go to the LabVIEW code over here.

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As you see, this is my block diagram.

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And over here this is my front panel.

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So in the LabVIEW, you just go to the instrument, input output over here, you just find Visa, you

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just lock it.

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So first function, you just go to the advanced over here.

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As you see, this is my serial read function.

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Then I have visa, right?

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Then I have close.

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So this is my close function visa.

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Close.

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I also name it label it Visa close is there.

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Second function that is visa, right?

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You can find this visa right over here.

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As you see, this is my visa, right function.

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I also label it as you see now you need to read serially read.

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So for the serial read function, you just type visa serial or you just go to.

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Over here in the cereals, you just find configure port visa cereal.

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You just also name it visible label.

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Okay, so this is how you can find out these components.

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So this is my visa configure.

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These are configure serial code, so you just connect it over here.

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I have while loop.

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So you just set visa baud rate clean up wire and over here we have visa resource in this.

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You need to just find set the port in this case as you see.

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Com eight is my USB port and over here you just go to the select function.

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The select function is available in the comparison.

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You just drag and drop it over here.

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I just also name it.

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Then you just put when the function is true, create constant for it and the constant for this should

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be string function.

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So when I just connect over here, you just need to go to the string over here.

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You just create a constant.

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Just connect this.

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As you see inside this, you just put a otherwise put be.

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It is up to you what you want to put inside the variable.

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But in the case of Arduino, I just use a variable.

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If it just get a it will turn on the Led, otherwise it will turn off led in the place of B, you just

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use anything like off function.

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Right now I'm just using off function.

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Okay.

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So over here, this is my Led button.

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It will turn on and off my led.

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Okay.

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So this is how you can create the LabVIEW code right now.

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You just run it.

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When you just run it as you see it is in off condition when you hit on run button.

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My led goes on, off on, off on.

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So this is how you can use visa to write signal to your hardware and in this case your Arduino just

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read the serial data and based on that serial data it will take the decision.

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So this is how you can go with Visa in LabVIEW for Arduino programming.

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Thank you.