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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!
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!
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Signing UpStep 1Getting 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
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
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e-mail: dankeshn@gmail.com
I also want to make it bigger system like most of the people.
I want to thank you for all your effort, I already made your 8 x 10 LED matrix.
Had a little problem with my arduino but I fixed it.
I want to make a "read able" matrix. i think 8 x 128 is fine :p
I think the lenght would be +/- 1 meter, and that is what I need, but the problem is that i have no idea how to program it,
So is it possible to assist zolibert00 and me writing the code for arduino please?
You would really help me alot! ;)
my email: peirstom@gmail.com ( I response within 2days )
Than you
Using the 4017 to scan the rows (5 of them) to ground
and using 4 74HC595 to send information to the columns (25 of them)
I am going to try and use it.
8x8x8 now that had to take a while to solder O_O
my 5x5x5 took me all day but its very neat
first of all, i wanted to give you thanks for making this intructable.
I was building this slowly when i have time away from work and family.
Initially, i painfully soldered the 144 LEDS onto a board. However, after finishing it, i found out that some of the LEDs i soldered are faulty.
While not being discouraged, i shopped around and found a cheaper and and probably an easier option. I bought some 5 pieces of 5x7 LED matrix.
Upon figuring out the PINS of the LED matrix, i encountered a "little problem".
The rows are the "Anodes(+)" while the Columns are the Cathodes(-). In other words, it is the exact opposite of the 24x6 LED matrix pinouts of yours.
Im a little rusty in electronics, however, I'd like to ask if I use these 5x7 matrices and just change anything from your original circuit? (ie. the pinout of the shift registers or the transistors)
I would appreciate any help.
I followed your tutorial and got the matrix to work. However, LEDs are not lighting very bright.... I have to cover the matrix with my hand in order to actually notice which LEDs turn on.
I also tried an external source of power using 5v but had no luck.
I'm not sure what could be wrong... I hope you can give me some ideas...
Thanks in advance.
And is that was is in the PCB schematic in the bottom left, the symbols with the semicircles that have a B in them? If not, what are those? I'm new to electronics but want to get a few projects worth of supplies for Christmas, including these, but I'm not sure about the pin headers. Thanks
The things with the B in them are the transistors.
The pin headers are the connection in the right(11,10,13,+v and so on)
bye from holland :D
sorry for my english statement
Can you sent me the code from Syst3mx? I would love to make it bigger too. :)
at meme_davids@yahoo.com
thanks! :)
1. Columns formed by positive leads?
2. Also any sources where i can look up for connections for the registers, decade counter, transistors and Arduino connections. I know you have put the schematic but iam into electronics out of interest but novice to interpret the schematics.
3. I have the Arduino Dumelianove board with ATMEG328 on it...do i need to bootload it to use with this project?
Hey this question is open for anyone and everyone who is kind enough to help me build this up. Thanks one and all. My email is patilsiddeshwar@yahoo.com
We want to know how can we extend the matrix from 24x6 to 40x6 can you help us with the code. we already create a circuit for the matrix. we use the code "now it works" and it works fine.here's my email jomar_0123456@yahoo.com. Thanks in advance
email id is dharmik33@gmail.com
regards
We were working on our LED matrix and now it's working fine.
we want to extend our matrix from 24x6 to 40x6 . Can you give us some ideas about the changes we should make in the circuit and the code. We used the "now it works" code of your because we need its functionality for our project.