Free Project - 245 LED Display

[iulisan]

There is no one willing to help me ? Is there no one there who has build the display ?!?

[skimask]

There is no one willing to help me ? Is there no one there who has build the display ?!?

A little bit greedy aren't ya? It's only been six hours.

If you read the thread (yes all one million posts), you'll see that while the initial posting of the project had an error or two, all issues were successively solved.
There's even step-by-step troubleshooting in there somewhere.

[Pic_User]

Hi iulisan,
Welcome to the ME Labs PicBASIC Pro forums.

Search the forum for:
245 LED magu


I have not built the project but looking for more information may help you.
-Adam-

[iulisan]

Thanks.
Like I said in my previous posts : I think my board is ok cause it's made after magu(zamfirelu http://www.zamfirelu.org/dtpt/viewtopic.php?t=254) schematics , and a read over and over again the whole thread...the problem is that I can't connect with the computer to the board and today i saw that even when the eeprom in not present on board , the LED for programing blinks the same like with the eeprom on it.
Again thanks a million.
P.S. : I contacted magu on his forum and i stand in touch with him last year , when i first begun to build the display , but until now he did not respond to my new posts , so that is why I decided to post in this forum that started all...
P.P.S. : I'm impatient to continue the project because in this period I have time to do so.

[iulisan]

Yep it's working...Bill G. made me some crazy days with his xp...

[charudatt]

Nice to read posting on this project in the year 2008.

I am about to start with the project with certain modification on the PCB.

I don't wish to drag the project on.... and on.... but , just wanted to make sure, i don't do the same mistakes (if there are any).

Shall post my modified schematic shortly.

regards

[T.Jackson]

This thread has certainly had some hits. Source code downloaded over 2,500 times!

[Ioannis]

Sure is a "hit"!

Also congrats for your new article on EPE!

Ioannis

[inspired4real]

i had to so some reading about serial eeproms and i am wondering if i can use a 24c16? apart from changing the control code and space limitation comparted to 24lc256, do you think i will have any problem assuming i am able to take care of the issue of pin compatbility if that happens to be the problem, i am really sorry if i am fooling around again with my question.


having to load message means i have to bring down my display and use my desktop serial port, i also bought a programmer and it has serial port. i was thinking if i can use a usb to serial converter so i can use my laptop to both load message and can also use the serial pic programmer with my laptop by using the adaptor. has anyone tried this out?


is there a free software or utility with which i can generate my custom character defintion for any matrix size i want, because i want to actually make a 14 by 10 size matrix display.


i was thinking of using red green and blue led in sequence so that when they scroll i sort of have a colored display, but the current required varies to get some level of brightness for the different color of leds, any advice?

thanks alot

[T.Jackson]

any advice?

Stay tunned for my extensive line up of mikroC projects to come. Oh, and watch out for angry Government officials and tax payers.

Trent Jackson

[aurbo]

How hard would it be to expand this project into a 16rowx48column display?

(I happen to have a 16x48 matrix gathering dust)


Cheers
Steve

[T.Jackson]

How hard would it be to expand this project into a 16rowx48column display?

Nothing is hard when you know what you're doing. But you wouldn't use this design for a big display like that. A step in the right direction would probably involve considering a module-based schema. This would allow any size display to be constructed, simply by connecting more modules together. Each module could be say: 16 x 24, occupied with its own microcontroller, leds and IO interface connecting to other modules. I think one of the biggest milestones for a project like this would be in the software.

Best regards,

Trent Jackson

[octobpra]

Hi Magu

Help me i can't find www.zamfirelu.com that u post pdf file in 245 Led Matrix Display (as constructed by Magu) ....

[Ioannis]

I think magu has left the forum...

Ioannis

[magnoedu]

Hello friends I'm very happy and grateful to the t.Jackson it works very well. but had to use another computer to program the vb did not work because in my pc. wanted to know if you are like me change the transistors to turn more LEDs per pixel example three LEDs in series and make an pannel big

[magnoedu]

the program vb not run in my computer ,but run in my notebook and outhers im format my computer and not run help-me

[magnoedu]

Trent wanted to be my friend is not asking too much, me that the source code of vb to change as necessary or if you can not just tell me what he does only I can do similar for the assembly so I found problem with crystal but failed to replace and worked beyond the error of the pins to rest everything was very well I am very grateful, God bless