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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

<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>
Code is hardware dependent. I have one using 74HC595 for row n column.
Can someone please send me the code for the 24x6? Bentleyth3brain@gmail.com
<p>please someone send me the proper code for this project at dipin.g007@gmail.com</p>
Send me code at alakh.madhav32@gmail.com and also circuit diagram with component
<p>can some one mail me 48*8 code.....vammichanti40312@gmail.com or devallavamsi@yahoo.in</p><p>tq uuuuuuuuuuuuuuuuuuuu...</p>
<p>I sent it to you.</p>
Pls send me the codes <br>sahil007patel@gmail.com
<p>Hi can you send 8x80 led matrix code at jamborloi@gmail.com....Thank you very much</p>
<p>I can send you a modified version of my code and see if it works, if you are willing to try it , contact me at my email: elink53@comcast.net</p>
hi bro do you mind sending me the code alias 8x80 led matrix... I will truly appreciate...
<p>Hello! I&lsquo;m trying to make a 15*7 with 4017 and 74HC595 (and a 2982 to increase the currant) as my intern ship project. It's new to all my tutors(what a bad luck) and i just don't know how to program it with Arduino! Could anyone give me a hand pls! Thanks a lot!!!</p>
<p>what is 2982?? how to use it??</p>
<p>You can use 2003 to inverse the courrent. Which 2982 can not. That the key point I think. And i finally made it. if you want my program you can give me your email address I made it for a 7*40 LED board.</p><p><iframe allowfullscreen="" frameborder="0" height="281" src="//www.youtube.com/embed/e5pWyml5-0I" width="500"></iframe></p>
Pls send ur code to me<br>sahil007patel@gmail.com
<p>hi sir this is dhruve and I want to make a running led project contain some message please guide me how I will make led matrix and send me program with instruction email id is yadavpeterromio@gmail.com</p>
<p>plz send your code @ xpjerin@gmail.com</p>
<p>dear user, can u send the diagram and full details</p>
<p>starfirr@hotmail.com</p>
<p>starfirr@hotmail.com</p>
<p>My email is arsysimbi@gmail.com .thanks for your help.</p>
<p>My email is alheffez@gmail.com Thanks much</p>
<p>my email is flz841147593@gmail.com thanks </p>
<p>max.i.am@hotmail.com</p><p>thank you so much !</p>
<p>can you please share your code with me at</p><p>patelbhujal@gmail.com</p>
Congrats for the success. Will you be kind enough to share the code with me at sharmapukar@yahoo.co.in
<p>I made a 24x8 led matrix,</p><p>my Arduino's Pin Used for=&gt;</p><p>74595 shift clock(SHCP_pin)=&gt; 9</p><p>74595 storage clock(STCP_pin)=&gt; 10</p><p>4017 clock pin(Clk)=&gt; 11</p><p>Data input(DS_pin) =&gt; 12</p><p>Positive Voltage(+VCC)=&gt; 13</p><p>please send me the arduino program regarding my Arduino pin,which is previously mentioned...</p><p>please help me;</p>
<p>hi I have had just great matrix I am wondering if I I can make this into 40 x 6 by adding 2 extra columns of 8 </p>

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