Scrolling text effect on a LED matrix display

This is cool project to pay attention to. It can be used for PC modding or elsewhere where scrolling text effects are needed. Display is built of 50×7 LEDs that is controlled by AVR AT90S2313 microcontroller (may be substituted by ATtiny2313).


Text can be sent from computer via RS232 port or displayed from external EEPROM 2k memory where 768 characters can be stored. Fonts set of 256 different characters can also be programmed and mast be written to EEPROM before sending text to display. Hardware project with 3mm LEDs can be downloaded here. And latest firmware here. There might be minor changes are needed to adapt to newer WinAVR and ATtiny2313 microcontroller.

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  2. hy
    did anybody build this project?
    because i need some help

  3. sir your project is good
    but where is computer software for writing a message

  4. iam attempted to build it,but i can’t get the uC insted iam try to use attiny2313 can anybody helpme with the code

  5. how to burn the code in to the ic

  6. no, that big faults project, delphi program for interface from computer to the hard ware not work yet…. i was build that project, so disapointment….

  7. can anyone help by giving me the c code for programmable scrolling display using LED

  8. I built this circuit severally and it did not work. So i have to dump it. I spent one week trouble shuting to find out where dthe problem was and i discovered that my circuit is correct but is not working. Pls has any body build this circuit and it works.

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