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Good morning friends.

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Today I just show you how to use analog input pin of this new USB DAC card to acquire signals from different

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sensors.

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So first of all, I just use this one.

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I stands for analog input.

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So in this case I'm using differential pins.

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So as you see first I'm using this potentiometer in using this potentiometer because this potentiometer

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will generate zero volt signal one volt signal two volt signal in between like 1.5 1.7V.

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Also I'm using this five volt to power up this potentiometer.

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Okay, so first of all I just connect five volt.

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So this is yellow.

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One is my five volt.

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Over here I just use this potentiometer.

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So one end is connected to the five volt and the middle one that is your wiper.

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This is connected to this red one is my signal.

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This is connected to pin number zero.

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As you see of analog input port.

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And now I just connect ground to the another pin of potentiometer because potentiometer have total three

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pins, one is positive, one is signal and one is ground.

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Now the trick over here is you just need to in the case of differential E, because pin zero and pin

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four these are used as a differential mode.

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You just need to ground this pin number four also okay Okay so these are the hardware connection.

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Now I just go to the software part.

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In the software part you just need to drag analog input sample.

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And this input sample you just need to set the pin.

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Because over here I am just using analog input pin I zero because signal is available over here, as

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you see over here, you can set it mode.

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It is in differential mode.

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Measurement type is voltage range is minus five to plus ten.

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You can change it also and it is DC coupling over here okay.

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So just put apply over here.

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Now you just need again a scope and a display.

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So I just click over here display to know the exact value of the output voltage.

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Just connect this and one scope I need to display.

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The value in the form of graph.

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So you just need to connect this one.

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Because in the case of this case the maximum value is five volt.

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So I just set the scope over here you can set the value.

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Why?

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Maximum value and minimum value.

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So maximum value is five and the minimum value is zero.

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You just need to apply.

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Okay.

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As you see scale changed.

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Just minimize the scope.

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I just put.

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This one over here.

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Now I need the scope.

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And over here, this is the scope.

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I just run it.

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Let's check what happened to it.

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So as you see, the value is 2.266.

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As you see over here.

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Also 2.266.

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Now I just changed the value.

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As you see right now it is maximum 5.018.

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Again, in the real time I'm just changing the value of potentiometer.

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Right now.

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It is ground.

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I am changing very fast as you see.

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How you can.

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How the value changes using the potentiometer.

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Okay, so this is the single case.

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If you want to apply multiple sensors in that case.

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Also, it will generate some values according to the sensor value.

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You can use potentiometer.

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You can use air sensor.

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You can use the air sensor.

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You can use fire detection sensor.

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You can use LDR sensor.

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It is up to you.

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Okay so this is how you can acquire analog signal using any USB 6001 or 6000 8 or 6009 device with the

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help of Matlab.

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And we just also visualize this data in Matlab.

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So this is all about today's lecture.

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Thank you.