24×24 LED dot matrix display control

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.

matrix2.png

Device circuit:

matrix1.png

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.

Demo movie (137kB);

Source code

Originals source svv.on.ufanet.ru

14 Comments:

  1. hi
    i want use your code in my project and i dont under stand your code and shematic plz translate code and re draw sjematic for me

    TNX

  2. Please refer to: svv.on.ufanet.ru

  3. HELLO SIR
    THANK YOU ON THE PROJECT LED MATRIX
    BUT
    IWANT THE ASM FILE BY ENG.
    PLS SEND THE MOD. FILE
    THANK YOU

    KHALED

  4. i want vhdl code for 5X7 led dot matrix display and schematic
    can you help me?
    my email: Archa_lupz@yahoo.com
    thx

  5. wanna want to tell that i like your project, thank you so much . derkaoui849@hotmail.com

  6. sir this is venkat .i want basic tutorial on led display. i have to write code for 144×15 matrix led disply.so if possible please send me the tutorial .
    thank in advaance.

  7. i want vhdl code for these requests:
    1.alu(8bit output)
    2.matrix display driver(5*5)
    thanks

  8. please send me read me file english format

  9. Good Day
    I’m from Brazil,
    I have to develop a project for the University.
    I got interested in this project will be that you could pass me the arrangement of the circuit and the display?
    Thanks ….
    My email is: vitor_maluco1@hotmail.com
    I await response.

  10. hi,
    here i wish you may you edit exe file for 24×24 dot matrix control to continue the animation from start again and again

    2ndly plz help me to that animation how i save in eeprom or any link for it
    thank you with best regard

  11. This is a very good project for my students and this is also very simple yet productive project that they can make use of.

  12. I am Shirly of
    video glasses review. I am happy to know that displays are designed like this. I looks very complicated for me but this stuff are your specialty. Good job!

  13. i am ujjwal for nepal

    this project is very good..i am planning to do this project as a final project..so plz help in doing this project.

  14. hey am i doing a smiler project to this one for me end for year project for college and i would like to get more information on this project to guide me through mines

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