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Hello friends.

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In this part of the video, I just show you how to interface a Pir sensor passive infrared sensor with

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an AI DAC device with the help of Matlab software and how to acquire the signal in this case.

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Also, I'm using digital signal digital input signal.

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As you see over here, this is my Pir sensor.

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When you just open this housing you can check one pin is VCC, middle one is output, and extreme end

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is ground.

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You just connect VCC to five volt signal to the digital pin or DAC card.

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In this case I'm just connecting this digital pin to the port zero Line five.

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Ground to ground.

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Let's check what happened.

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This is a motion sensor.

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It will detect motion when some study device in place of this.

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It will detect zero.

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When there is a motion, it will detect one.

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Or you can say hi.

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So I just.

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Drag the digital input over here.

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You just need to select the pin and select all the device.

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Pin five means for zero.

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Line five is connected over here.

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Let's just use another pin.

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I'm not using port zero right now I'm just using.

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Let's say over to one over here.

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Just connect this device.

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So now it is connected to old one.

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Line one.

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Now let's check.

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Old one just be selected or unselected.

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Old one.

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Line one.

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Select it, apply it.

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Now one display device.

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Just connect it.

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This display device, you can use cope also.

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Now I just run it and let's let's check what happened to it.

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So initially it is saying zero when I put my hand as you see for once it is saying.

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Zero then one.

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When there is a motion it is saying one again, there is a motion.

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It is saying one.

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Okay, so this is a motion detector, right?

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Let's say I just put my hand for some time.

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For a moment it is getting zero.

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There is no motion when I just put my name on my hand.

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It is, say one in the motion sensor.

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Over here.

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There are two different potentiometers using these.

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This one is used for delay time and this one is when it say or it send a pulse so you can manage it.

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You can manage the range and the delay time between two pulses.

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So this is how you can interface your pulse sensor or not motion sensor with your Matlab software.

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So in this case I just explained you the Pir sensor connections interfacing.

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As you see.

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Again I'm just putting my hand.

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It's a one for an instant then zero.

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You can manage the delay time from these potentiometer and the range of this Pir sensor using these

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potentiometer.

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One is for range, one is for delay time.

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So this is all about today's lecture.

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Thank you.