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After making a 8X10 matrix a lot of people asked me about expanding the matrix to some thing bigger, and some wanted to write stuff to the matrix via a PC, so one day I looked at a pile of LEDs that I had leftover from a LED cube projected and I decided to make a bigger matrix with all the things people wanted.

So what are you waiting for? Get those LEDs out and heat up your soldering iron because we are about to make a 24X6 LED matrix! 





Step 1: Getting All The Right Things

So you will need the basic set of tools for this project : a soldering iron, some solder wire, a cutter, a needle nosed plier,some wire, wire striper, and some desoldering tools if you need them.

For the matrix you will:
1. 144 LEDs
2. 24 resistors( The value is determent by the type of LEDs, in my case 91 ohm)
3. 4017 decade counter
4. 6 1KOhm resistors
5. 6 2N3904 transistors
6. A long Perfboard
7. Arduino
8. 3 x 74HC595 shift register
10. some pin headers

Please someone help me out to complete this.
Please send the code for 24*6 matrix that you have explained above. I want to make it
Can I have code for 48*8 matrix thanks in advance
Finished
Is it possible to expand the amount the amount of letters or numbers that i can scroll across the 24x6. I would like to scroll my address for the mailbox. mrebarnas82@gmail.com if anyone has any ideas
hai Syst3mX, how to modify 24x6 to 128x6, if you can help me to modify the source code??<br>let me know via email: nurhadiahmad88@gmail.com, thanks and success for you
<p>GREEN LED</p>
<p>CODE NOT WORK</p>
<p>How do I use the serial monitor to display typed text?</p>
<p>What type of LEDs did you use?</p>
<p>not work properly later like <a href="http://www.instructables.com/member/Miggyparas15" rel="nofollow">Miggyparas15</a>made it! please give me schematic and code</p>
<p>What would need to change in the code if a 24x10 Matrix was constructed instead of 24x6? </p>
<p>All of these variables below need to be changed to 10. </p><p>[6] r&lt;6 p&lt;6 y&lt;6 i == 6 h&lt;6 k&lt;6</p>
<p>Could the same code be used if I were to add an additional 16 columns to the 24? I would add an additional 2 595 shift registers and cascade the date from the first to the next allowing 40 total outputs or 40 total LED anode columns. I would imagine something in the FOR loop would need to change. Any comments would be great! :)</p><p>-Sky</p>
<p>I am afraid his code is limited to 24 columns, however I have been able to modify, his code to work with more shift registers. Send an email to gplyr8@gmail.com</p>
<p>hey I made it 24 x 8! but I seem to have encountered some problems.. only columns of led show up with no visible movements or animations. Do you know what might have caused this problem? I tested all my leds after soldering, all works fine. btw, I'm using the loop code. and great instructable though.</p>
<p>Could you send me some photos, of your shift registers, the decade counter, and your Arduino hookup, I will be glad to see if I can help you. My email is gplyr8@gmail.com</p>
<p>I'm using an arduino UNO and forgive my circuitry skills..I'm still new to this. could it be the decade counter or shift register fried up? </p>
<p>Hello guys, Can anybody explains me the code ?</p>
How can i use this matrix to make a clock(12hr) please give the code
<p>excuse me. if this running text expanded to 48x6 with just adding more register is possible?</p><p>and the matrix module is needed a zener to secure led from broken?</p><p>thanks</p>
<p>I have a code that has been modified to recognize the additional shift registers for the 48 x 6 display and would be happy to share it with you, if you contact me at my email address; gplyr8@gmail.com. Also I have not found the need for the zenerk, but you will need to add some small capacitance capacitors to your ground on the shift registers, to avoid trouble. I also have an updated schematic for the display.</p>
<p>I know this is a bit old but do you still have the code for a 48 x 6 display? I'm hoping to adapt it to a 32 x 8 display that I've made. My email is: Sharon97Q@gmail.com. Thank you kindly.</p>
<p>No problem. I sent it to you.</p>
<p>thanks for the information and instruction. it's helpful. now i'm will develop it to 48x6 running text.</p><p>maybe i'm need to exploring the variation of the animating movement of text,hehe</p>
<p>actually, I'm still onworking progress on board. i made the PCB based from 24x6 with additional expansion for 24 lines. </p><p>does it will be ok?</p><p>oh, plus, the board that i will use is arduino nano. is it capable enough for the display?</p>
<p>Not sure about nano, but it should be able to handle it.</p>
<p>In the code the words &quot;byte&quot;, &quot;bite&quot; and &quot;bit&quot; are all used in the comments. Does &quot;bite&quot; refer to bytes or bits? </p>
<p>I made it, the hardware design is solid, but im running into problems with the code. im using an arduino uno, and when I upload the WORKS file i get nothing... When i use the LOOPING file, my array wont get larger than 8, im just adding letters and increasing the array size. any ideas what I might be doing wrong? The attached immage says &quot;DONE&quot; camara frame rate is just too fast...</p>
<p>Figgured it out, when you change the array size you also need to go down to the void and change the size there. I created a var that way there isnt 2 changes.</p>
Hi i have made the project buts instead of letters i am getting square boxes. I am not able to find the solution please someone help me. Please!!
<p>Thank you Syst3mX , i made it :)</p>
<p>can you please send me the code !!</p><p>mashael.h.alharbi@gmail.com</p>
I want to build 6x24 led display. But I don't know how to build Please help me. style_1992@inbox.ru
Can someone tell me where to find a large enough perfboard? I can only find small ones online
<p>I couldn't find a perfboard online either. However, I acquired mine from a local electronics store so try looking up some around your areas and call to see if they have the right size.</p>
<p>hey, this might fry the arduino board. what if all leds is in high state. how can arduino handle that too much current?</p>
<p>Using an External supply will do the trick. Check my schematic and i have used 2 amps 12v to drive LEDs with out any issues. Depending on the current one can select appropriate NPN transistors and i used TIP 31 so i can use in the future for bigger loads.</p>
<p>how do we provide the power supply ??</p>
<p>yes. i'm wondering, this might fry the arduino board. what if all leds is in high state. how can arduino handle that too much current?</p>
<p>Anyone have a time estimate on about how long this takes? </p><p>Thanks</p>
<p>I don't know if anyone is still here, but does anyone have code for either a game like snake or an animation? Thanks! Send it to thecomix01@gmail.com</p>
<p>Great project! Can someone please send the improved code for the 24*6 to me as well? sarcho77@gmail.com</p>
<p>Can someone please send the improved code for the 24*6? And does anyone have got some good ideas to add extra's to the matrix?</p><p>kevinveijden@gmail.com</p>
<p>Can you put in this code č,ć,Đđ,š and ž and send me on email: </p><p> zadosadnestvari@gmail.com I need it for my school project. Thank you.</p>
<p>Hello, I'm trying to make a 48*8 and 56*8 scrolling LED matrix. Could anyone provide both of the code please. My e-mail is constantine_9530@yahoo.com. </p>
If you are using low side row and high side column using 74hc595 for both than i could help you.
<p>hello sharmapukar ! could u plz send me that code and ur hardware part .thank you</p><p>my email :arsysimbi@gmail.com</p>
<p>i need code 8*24 plzz help (y) </p>
<p>i need code 10*24 plzz help </p><p>elamraniamine9@gmail.com </p>

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Bio: Electronics and LEDs what can be better ?! :D
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