matrix maybe

See if found online that they have envented a extreamly wierd type of computer that works on matrix like codes which is kind of wierd so what else do you think needs matrix type codes for machines

Topic by bommber man   |  last reply


led matrix?

I want to build an led matrix for under 50 bucks that dose not use Arduino. is there any way to do it?

Question by knexinventer   |  last reply


Led Matrix

I want to make a simple led matrix out of some leds and a 5.6V phone charger, just for it to light up, no animations or any particular control to it, just a simple matrix with an on/off switch.  A link to some instructions? Much appreciated, and is there also some instructions out there to turn a basic light bulb socket to power leds?

Topic by crossraod   |  last reply


LED Matrix?

I tried making a LED Matrix but encountered a problem while writing the code. I thought that I would be able to light them up by applying power to rows and columns but found out that we can only light up a few LEDs at a time due to the current limit of Arduino. I now have no idea as to how I'd write the code, so I would appreciate it if someone could help me. My matrix is 5x5. I attached a picture describing how my LED's are connected. I have so far not connected the resistors and I was wondering if I could connect them on the cathodes rather than anode. So, I would like it if anyone could help me regarding the resistors and the code. Thanks.

Question by SA-DIY   |  last reply


LED matrix?

I'm interested in making an led matrix with random effects.  I have no programming experience, so if theres a simple way to do this with a 555 timer or something of that sort please send me a link to a site or give me details. thanks. Thanks for the help everyone. I'm looking into programming microcontrollers. I guess it would be cheaper and easier than using a bunch of 555 timers

Question by musick_08   |  last reply


Matrix Batch File

Please could some one write me a batch file that says makes the command prompt says Will, The Matrix has you...

Topic by bloodsugarsexmagik   |  last reply


LED Matrix Logo

Hello, I am looking for help/advice with small project I am undertaking. I want to make a logo out of 50/60 single LED's as a gift to someone. I have attached a picture of the logo. Should I make it on a blank circuit board, what is the best way to connect the LED's (2.2V) and solder them, how many resistors are needed? Any information is gladly appreciated :)

Topic by EimearF   |  last reply


RGB Led Matrix

Sorry! I am looking on how to make a RGB Led matrix. I have found a lot of them but any of them was a RGB, so the idea is this I need to make a 6x9 RGB Led matrix and make the dots flash in different colors. I know the principle of the led matrix but not of a RGB one. So can you lend me a hand? or a sketch as possible? Thanks for reading. P.S.: Sorry for the bad english I speak spanish lol

Topic by Positive07   |  last reply


rewiring keyboard matrix?

I want to know if it is possible to rewire the traces that go to the numpad on a keyboard so that the numpad section can be cut out? I've seen some boards where this is done but no explanation was given of what's going on. The trace that is supposed to go to the numpad keys should be rerouted back somehow, I am guessing.

Question by phillyj   |  last reply


Help With LED Matrix

Hey everyone,  I've been making LED displays for various projects now and I understand it quite well (thanks to some of the great instructables on this site) though I've only ever made a square or rectangular matrix for my projects and need to make a circular one and am completely lost. How would I go about making and wiring such a thing? Is programming odd shapes different? 

Topic by notnowmyheadhurts   |  last reply


LED Matrix Wall

Hey everyone!THe artist Erwin Redl is very well known for his "LED Matrix Wall" http://www.acegallery.net/artistmenu.php?Artist=20#I went to go see it this weekend, and I wanted to know how it was done, sadly noone there knew :'(So Im passing it on to Instructables! Help a newb create a wonder in his room!Now i dont get how it is set up at ALLi always thought the bottom needed to be connected to a negative...can ANYONE help describe how this works, as you can see the bottom of the line, is a weight.im so confused!Im just trying to power as many LEDS as possible, and this seemed like a better way then my drawing with a white background...

Topic by mu0p   |  last reply


LED matrix circuit?

So I am trying to make something like this: https://sites.google.com/site/gradcapmod/   to basically make an LED display on a cap. The thing is, I don't want to program anything, just light up a design, wired with a switch to turn on and off. Most instructions are how to program a display using a microcontroller and transisters, etc. My plan is to use 3mm leds and just solder them together and power it with a 9V. Would that be feasible, wiring the LEDs in parallel strands. Also, I know that I might want to use resisters to make sure the current isn't too high and burn out the bulbs but I'm not sure where to put them in the circuit or how to calculate it. (I can't make a circuit from looking at a schematic either)

Question by AeroGophers   |  last reply


red 8x8 matrix with 26 pins?

I received this matrix in the mail and I'm having problems trying to get it wired, as you can see it's it has 26 pins, the schematic has 8 pins for the rows and 8 pins for the columns but the other 10 are sitting at the bottom with the words "no pin"? I tried to wire up the rows and columns but had no success. My main goal was to have it hooked up to a couple 74HC595 shift registers (via 16 pins?) on some protoboard. Any help on how to get this wired would be appreciated!

Question by whiskey_14   |  last reply


Can I convert This project below " 10x8 LED Matrix + Arduino" into " 8 X 8 LED Matrix " what will i need ?

Hi  check please this project  http://sohilp.blogspot.com/2011/10/tutorial-10x8-led-matrix-arduino.html i liked it but the problem is my teacher doesn't  want me to work with Arduino . she said try to find like this project " Matrix LED" but by using   parallel port + db25 cable + microprocessor    i want to ask you what Material will i need ?  i have to submit the report tmw :(  help me please :( :) thank you 

Question by layal_1   |  last reply


24 x 24 LED Matrix Project

I would like to share with you all an awesome project and some doubts and questions related to the same. This is a 24 x 24 LED Matrix project taken from here. All the data is taken from the same link. 24×24 LED dot matrix -->   This is pretty old circuit but I found it interesting to describe here. 24×24 LED display is formed by using 9 8×8 Dot LED matrix displays, that are connected to AT90S2313 MCU. MCU scans an indicator lines in series. Special PC program is written which allows drawing images on screen and transfer them via COM port to device. You can send images in series what gives an animation effect.   Circuit is was built using obsolete AT90S2313 MCU which can be replaced by Attiny2313 MCU with minor modifications of firmware. To make program work you event don’t need to connect device to computer COM port. You can store images in other master MCU EEPROM memory Each received byte from UART is immediately sent to 8 LEDs, second byte to next 8 LEDs and so on. Bytes has to be sent one by one without delay. USART is working at 115200 baud, 8bits, no parity. ---------------------------------------------------------------------------------------------------------------------------------- THE PROBLEMS >1>I really dont know if the circuit is good or not tell me if it is going to work. >2>I cant get 8x8 dot matrix displays so i am going to normal leds to a 24x24 one. >3>I have never worked with bus before (the bold red lines in the circuit) so i dont know how to connect it. >4>The schems are segmented i am finding it hard to figure out how to connect some of the segments. >5>Also i need to know how to hook it up to my pc. >6>I have never done programming so i need to know how to program the ic. THANK YOU I couldnt get the images uploaded nicely so i linked them. 1 2  

Topic by science_freak   |  last reply


Question about LED matrix in general - how odes it work ??? Answered

Hi ... I had a look at this instructable www.instructables.com/id/LED-matrix-using-shift-registers/  and there is this picture with the schematic how to create the matrix www.instructables.com/files/deriv/FSW/VO3F/FHAVXXA0/FSWVO3FFHAVXXA0.MEDIUM.jpg My question is how does it work, because I can't understand it. I'll give an example : Imagine, you turn on 4 leds : LED1, LED8, LED57, LED64. And my question is, how are you going to turn OFF just ONE LED without affecting other LED's ??? When I'm looking at the schematic and I'm trying to TURN OFF LED 1 ... well if I turn off the ROW1 then I automatically switch off the LED8 as well...or NOT ??? Am I missing something or am I right ??? Thank you

Question by zholy   |  last reply


5x7 dot matrix display

Hi, I have a lot of dot matrix display 5x7 model LTP-2157AE i want use it but i don't know how do it, the product is this: http://datasheet.octopart.com/LTP-2157AE-Lite-On-datasheet-7274635.pdf Can youhelp me??

Topic by PDF laboratory   |  last reply


POV using LED matrix

Hi, I am doing a project of making and LED analog clock. The clock contains almost 300 LEDss and they are arranged in a specific pattern that looks like and analog clock. My question is how would you create a POV in this design of the clock. I have checked other projects of POV; in those projects the whole device moves along with the row of LEDs and then it created a POV effect. However, in my project, the LEDs are fixed on a plastic sheet. How would I create a POV effect on that??? Please HELP!!!

Topic by Bam Boy   |  last reply


RGB LED Strip matrix?

Can I use connected RGB L.E.D. strips in rows to make a animate-able matrix? And what program do I use to animate it? I'm working on making a deadmau5 mask that lights up, so it has to be a portable unit as I would like to wear it to shows. Thanks :)?

Question by downhillwondrboy13   |  last reply


can we made led dotmatrix diplay up to the knowledge of 3rd B.Tech student and how(clue)?

Myself is a B.Tech student in ECE I'd like to show to my juniors how can use our knowledege till this day in implementing projects if possible products. For I have planed for a led dot matrix display in my campus and that display must cross the knowledge of my juniors standard even if it cost more than as it is in market Because as a first year student I have studied some much only for marks but I want to see those in practicles. no one is guided me. Myself want to be a gudie to my juniors those who have faced problems like me Pease send your valuable suggestions to move further in this thank you

Question by sita1729   |  last reply


how to detect sensor position with arduino uno

Hi Guys recently i started use arduino UNO and with simple programs to read from analogue pins wasn't hard. now i'm facing a challenge, as i have a sensor mat 16x16 (rows and columns) i want to read 4 rows and 4 columns i'm trying to use the analogue pins as input for rows and digital pins from (8 to 11) as output i want the program to detect the position of the sensing area such as (row1 colum 4, for example) and give me the number that measured over this area. my code is very bad but i'm trying, specially my background wasn't programming or science. any ideas will be great.

Topic by Najeebgh   |  last reply


help code problems i want to pause each word after is scrolls in for about half a sec or so

I believe this is the section of code that needs to be altered? // Plot each character of the message one column at a time, updated the display, shift bitmap left. void AlphabetSoup1() {   char msg[] = "  Enjoy the Vittles  ";   for (int charIndex=0; charIndex < (sizeof(msg)-1); charIndex++)   {     int alphabetIndex = msg[charIndex] - ' ';     if (alphabetIndex < 0) alphabetIndex=0;         //-- Draw one character of the message --     // Each character is only 5 columns wide, but I loop two more times to create 2 pixel space betwen characters     for (int col = 0; col < 6; col++)     {       for (int row = 0; row < 8; row++)       {         // Set the pixel to what the alphabet say for columns 0 thru 4, but always leave columns 5 and 6 blank.         bool isOn = 0;         if (col<5) isOn = bitRead( alphabets[alphabetIndex][col], 7-row ) == 1;         Plot( numCols-1, row, isOn); // We ALWAYS draw on the rightmost column, the shift loop below will scroll it leftward.       }            //-- The more times you repeat this loop, the slower we would scroll --       for (int refreshCount=0; refreshCount < 10; refreshCount++)         RefreshDisplay();       //-- Shift the bitmap one column to left --       for (int row=0; row<8; row++)       {         for (int zone=0; zone < numZones; zone++)         {           // This right shift would show as a left scroll on display because leftmost column is represented by least significant bit of the byte.           bitmap[row][zone] = bitmap[row][zone] >> 1;                     // Roll over lowest bit from the next zone as highest bit of this zone.           if (zone < maxZoneIndex) bitWrite(bitmap[row][zone], 4, bitRead(bitmap[row][zone+1],0));                   }       }     }   } }

Question by bdexter   |  last reply


Curved/Circular LED Matrix

Hey everyone,  I've been interested in making a new project using an LED display, however, I have no idea how to go about such a matrix without the proper instructions or guidelines since it is very different from a square or rectangular matrix. I was hoping someone could explain how to wire and go about making such a thing (programming advice would also be appreciated). 

Topic by notnowmyheadhurts   |  last reply


MAX7219 Matrix LED TIMER

Hello everyone!Im trying to make a simple stopwatch with Arduino using a MAX7219 Matrix module and a button. Ive seen several codes for the MAX7219 Red 8 Bit Digital Tube LED but they don't work for the Matrix.My intention is to create a stopwatch that with one press of the button activates, with a second press it stops, and with the third one it restarts. Does anyone know how to incorporate a stopwatch into the MAX7219 Matrix?Thanks!!

Question by MauroGB   |  last reply


Help a newbie with an led matrix.

Hello world of the internet. I have an Arduino Uno, an ICM7218DIJI, and a ton of leds. I want to make a matrix. Preferably a 64 led matrix. I pretty much need help with all of it because I really have no experience with programming, arduino, or led drivers. The best way would be to dumb everything down. Lol,

Topic by Flap jack   |  last reply


Ghosting in LED matrix 8x8 RED

Hello All I have problem that is Ghosting in LED matrix 8x8 RED, I try solve by software and change littel to best but not fully, where on lighting that ghosting is not show but in darkness room it is show perfect. I use PIC16F877A and 74HC595 for rows and CD4017 for columns. Best Regards hosam matar

Question by hosammatar   |  last reply


Arduino LED matrix - Help needed

Hello fellows! I´m doing led matrix. I managed to put this thing together:https://www.instructables.com/id/Make-a-24X6-LED-matrix/ But i have one problem ... I cannot open the instuctable anymore(ERROR 500: javax.servlet.jsp.JspException: ServletException in '/common/newlayout.jspx': Can't insert page '/pages/explore/type/instructable_body.jsp' : ISO-8859-10).  I need the progams for the arduino. Can somebody e-mail me those programs from the page?   Thanks!

Topic by ikkajh   |  last reply


Best instructable to make LED MATRIX Scrolling.?

In example 24*6 or anything that size.

Question by Hman2121   |  last reply


How to figure out schematic of 8x8 LED matrix? Answered

I don't have a datasheet for the bicolor LED matrix that I got on eBay. It has 24 (12x12) pins, but no way for me to tell which one is pin 1. Any clues? :)

Question by bratan   |  last reply


How do they do the 4 coin matrix magic trick?

I have watch a vid showing a soin trick called 4 coin matrix magic trick. ive been wondering how do they do that trick?

Question by dvaughn   |  last reply


Arduino LED matrix for text and a audio spectrum?

Still running off my daft punk helmets, I had the idea of installing the ability to give the 8x40 LED matrix that will be installed into one of them the ability to be a real-time audio spectrum. Doing that on its own is something I can stumble through and get working, but my issue came in with the fact I also want to be able to change it to be able to display text. I'm thinking I can "change modes" between using some sort of EQ shield/setup to run the matrix verses pulling info for text, but this is one of the dark areas for me that I need a little bit of help on. Basically: I need to know if I could set up a switch to swap between EQ and text.  EDIT: I've already answered my question! However, this lead to a second question. If I use this code, how hard would it be to edit it to either duplicate or stretch it out over an 8x40 LED matrix verses the 8x8 its on? Thanks! 

Question by DoctorWoo 



i need to simply run a dot matrix printer motor with a 5v battery?

I ve got a motor of printer with 5v rating and 50 mh  i need to simply run it using 5v dc battery can i do so. it has 5 wires of different colours, please tell me how to do so?

Question by    |  last reply


How can I make my homemade 3x3 matrix show numbers like 2, 3, and 5 like the are shown on a dice?

I made a 3x3 matrix with my arduino, with transistors on the collums and the rows hooked up with wire, going to the output. I have a arduino, with 6 PWN outputs, luckily, and 14 total digital pins, and also 6 analog pins. So I need help having a 2 show up on my display, because it looks like a 4. and this is shown like it is on a standard dice. Soo... what am I doing wrong? I am just turning the collums and rows on and off to show lights and stuff. So ... help!

Question by chrisapalo   |  last reply


Nokia 8110

How could I make my Nokia 8110 spring-loaded like the phone in The Matrix?

Topic by Mr.Vengeance   |  last reply


74HC574 VS 74HC595

Can anyone help me understand when you would use one over the other? I am reading the spec sheets and I am not understanding the difference. I am gathering parts for two different projects. One is making an 8X8X8 LED Cube and the other is making a plaque using 8X8 matrix cubes. The plaque will have 11each of 8x8 matrix cubes red and 4each of 8x8 matrix cubes that are RGB. Thank you in advance for your help.

Question by reckerd   |  last reply


Transistors in LED matrices?

I'm confused about the purpose served by using transistors in an LED matrix.  Why not simply use current limiting resistors and a shift register?  What purpose do the transistors serve?

Question by KentaGrace   |  last reply


Cute musical time-waster.

I just "stumbled" on this sweet little tool for composing and playing musical loops. Pitch is on the vertical axis, time across the horizontal. I don't have any way to record it - if you copy this pattern, it sounds like a thumb piano.

Topic by Kiteman   |  last reply


Sex MACHINE!

The robots have gone back in time and taken over the funk! FULL DISCLOSURE: I listened to a ton of James Brown during my senior year in college and seeing a sci-fi/JB mashup is amazing to me. I also re-fell in love with "Appetite for Destruction" the same year. It was a good time.

Topic by fungus amungus   |  last reply


Pin-screen

Hi, I want to make a scanner, or maybe a "modeler". Background info keywords: https://www.youtube.com/watch?v=lvtfD_rJ2hE   <- NOTE THIS PROJECT IS WAY WAY MORE ADVANCED, I WANT A HIGHLY SIMPLIFIED VERSION OF THIS. https://www.physicsforums.com/proxy.php?image=http%3A%2F%2Fi.dailymail.co.uk%2Fi%2Fpix%2F2014%2F01%2F15%2Farticle-2539962-1AAFD4DD00000578-400_306x317.jpg&hash;=18c044d58272f31902c0c6194ba64eba   <- PICTURE OR JUST GOOGLE IMAGES:  PIN SCREEN Pin-screen. I want to make something that detects where each position is on a Z-axis (their x and y coordinates are fixed). So just a third number per-pin would allow me to map out the entire layout of the pins. I am not too sure if this has been done before or not. If anyone knows of a product that does this I would really appreciate more info. Anyways, THE ARDUINO PROJECT: - Something that takes feedback from each pin and maps it out in the computer. THE QUESTIONS: - How to read the feedback? (what sensor can I use, note that there will be hundreds of these sensors, so they have to be preferably small. Are there some very small linear position detectors? is an optical detector better? (I WOULD PREFER IT TO BE STURDY, i wanna play with it). Im thinking it should be something similar to how TVs work, with a pixel-matrix but instead this would be a matrix of position feedback, and I think it would be simpler than a TV since each channel only gives out 1 feedback (Z-position) instead of an RGB code (3 codes per pixel).  Anyone have some ideas on how to develop this project. Thank you!

Topic by david606   |  last reply


code vision programming in dot matrix...... a-z alphabet

Help me in the programming of dot matrix in code vision avr

Topic by ramsha shakir   |  last reply


Is there a way of connecting a pot or buttons to control the led lol matrix display?

I would like to control the matrix shield with buttons and/or a potentiometer if that is possible thanks.

Question by kwynne   |  last reply


In an arduino controlled led matrix, can you control the brightness of leds?

I'm looking at making a matrix leds that pulse and glitter randomly but can also scroll message or display shapes when needed.  Can you control the brightness of individual leds during a matrix scan?

Question by fetchtables   |  last reply


how can i make an led matrix on stripboard? Answered

How can i make an led matrix on stripboard, i do not have acess to pcb manufacturing so i want to make an led matrix on stripboard!!! does any one know how to do this easily? please answer!!! thanks!!!!

Question by thecookiemonster   |  last reply


FULL CODE FOR A 24 * 9 LED MATRIX

Https://www.instructables.com/id/Make-a-24X6-LED-matrix/ I have successfully made a 24 * 9 led matrix following the instructions on above link, which when I use with an arduino from a serial monitor I am able to display a scrolling text. However l want when one types a text and or numbers -maximum seven, they should be displayed permanently or stationary except of course if one decides to change the text and send again from the serial monitor. Kindly can someone send a full code for the task. I suppose you will change and update the code from the above link. My email address is : simonnjoroge2000@yahoo.com

Topic by NJORO1975   |  last reply


How do I determine the scan matrix of my piano keyboard?

Hi, I am trying to convert my old shitty keyboard into a midi controller by following the instructable by Evan Kale; https://www.instructables.com/id/Add-MIDI-port-to-Keyboard/ but when connecting two wires of the ribbon to my multimeter, which is set to continuity mode (as seen at 1:30 of the video in link above), there is no response from the multimeter when pressing the keys in order to determine the scan matrix. Am I doing something wrong? Please help!!!

Question by hbade   |  last reply


Need help trying to get the Arduino working with the RGB Matrix (with backpack) and an EEPROM chip.

Hi everyone, first question on instructables! I have an Arduino Deumilanove, a Sparkfun RGB Matrix with backpack, and an EEPROM chip (24LC256). I have the Arduino all hooked up to the matrix and have been able to mess around with some basic images and colors, but I have a lot of questions. So far, to display letters I have been setting up sections of code that light up each LED separately. I know there has to be a more efficient way to do this and was wondering how? Also, I have an EEPROM chip that is setup with the Arduino and Matrix but can't figure out how to use it. I have looked at the code for it on the Arduino website and I can't really figure out how it all works. So basically, here's what I want to be able to do: - Store the alphabet in the EEPROM - Be able to recall letters from the EEPROM - Display marquee messages Thanks in advance!

Question by xlivewire7x   |  last reply


Does anyone know how to make a matrix code on paper? Answered

I want to draw my own matrix codes and be able to solve them

Question by Rebreg   |  last reply


Help with LED matrix (daft punk) table Answered

Ok, so im still relatively new to electronics so please bare with me.  But say i were to make this table with an 8x8 matrix, as far as the wiring is concerned, is it really as simple as making the matrix and programming it with an arduino? 

Question by texpert   |  last reply


how can i control an 8x8 led matrix with an arduino and a computer ps/2 keyboard? Answered

I have an 8x8 led matrix and would like to know how to control it with a ps2 computer keyboard and an arduino. please note that i have no programming experience.

Question by devicemodder   |  last reply