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how to make cd disk for seven segment display at your home - YouTube
Channel: Robotics Kanti
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Hello Engineers this is "Robotics Kanti".
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So today we have brought for you.
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A great gadget.
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If you learn this easily then you will understand,
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A CD drive a DVD drive can doing reads and writes.
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By outputting it from the CD drive
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Will light up the seven segment display.
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But how can I light up the CD and how can I input this,
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Everything we can tell you,how it works.
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So let's today's video.
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We've seen a lot of DVD and CD drives.
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We look inside it properly,
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Where is the read and write has happened,
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Everything will be seen lightly on this.
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On this it is in such a way that,
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Little bit is Stay on it,
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Of different frequency dote dote is here.
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On the full CD drive little dote dote is here.
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It is very little.
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The lens which is of CD drive can read it.
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Same lens by reading it,
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Which generates different frequencies,with the same frequency we listen to the song
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and video is generated.
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That's way it happens.
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by using this technology,
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We will make up a CD drive on the seven segments display.
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And from this CD we will take input on the seven segment display.
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Will generate 1 2 3 4 on it.
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After this,the output from this will be on the seven segments display.
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What will be input the data,that's will be
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As we see in books,
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like you can see here.
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0000 which is 4 digit zero,
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Out of this,zero is the decibel number.
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and here 0001 has happened,so 1 is come here.
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meaning this will show on the seven segment display.
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We will use this code on the CD drive.
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Suppose we will use 0001
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So 0001 how we can do that on his CD drive,
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Where 0 will be black and 0 0 then were it is blank it's 1,
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Again 0 0 1 0,
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In this way we will do this,means the blank here,
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Whenever the IR LED will read here,
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What will do this, 0010 will read like this.
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After doing that we will get the input.
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The same input we doing by programming for Arduino.
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So now let's start this video,
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And make a CD,
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How to do input output with CD,all you need to know in details.
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This video is sponsored by QUARTZ components.
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All links are found on the below of description.
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Here I have installed 4 IR LEDs and 4 IR receivers.
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Which we have set two by two of 4 beats.
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4 beats will be input on it.
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Which Arduino will you taken,
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Programming with the help of Arduino,will output on seven segments.
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Which means 4 beats 000,0001,0010 those binary beat we do,
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From the same beat we turn on the seven segment.
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We will turn it on with the same technology.
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But we will learn how a input from CD,
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And how to get it on the output.
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Check them both by fitting them together..
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So now you can watch,
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i have make a CD,
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Actually this is not a CD,
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This I made from cardboard,
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W will use as a CD,
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Here you are seeing the white colour,
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black colour has been applied on the full CD.
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And here you are seeing the white colour
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The beat will be input on,it will be of white colour.
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And whenever it comes on black colour it is also zero.
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Will come on white,then it will be 1.
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That's way it works.
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We light up the seven segment display with the help of this.
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Now we will set it ,
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And let's see how it works.
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The circuit I have made,
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Here you see a dish one that looks like a CD.
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I've made a kind of CD,that's a little big size.
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Here the IR LEDs and IR receiver have been installed,
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We will fitted here,because it will act like a head.
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It works like head of a CD.
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Which white colour paper we have put on it,
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Arduino will decode the same programming send it here.
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And by coming 1234 of this.
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i have just given power,
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Power has just arrived.
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You see 0 is come here.
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Why 0 is come here,because there is no white paper here.
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I'm just turning it and see 0001,1 is come here.
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And 1 has also come here.
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See you again 2 3 4 5 6 7 8 9 0 is coming here.
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That's way it's work.
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I am turning the CD again and will see it glow.
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Look,I'm turning this around and coming 1 2 3 4 on it.
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Now I am bringing it to zero,then zero is coming.
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If you turn upside down,so it will come in reverse.
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It is coming very well and it is zero again.
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after watching this project we got to know how a CD is works.
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And how to decode from CD and send to a display.
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So you see how we can easily make a drive like a CD drive,
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With the help of this we can take input.
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