DIY Moving Message Display

[JAI MAA]

any body give me circuit of led moving meesege display based on 89c2051

 

[pasicr]

Hi,
look this
http://www.woe.onlinehome.de/e_projects.htm#ledfont
regards

 

[JAI MAA]

ANY BODY GIVE ME IDIA FOR HOW TO USE 74164 INTEAD OF MAX 7219 DOT MATRIX DRIVER

 

[pasicr]

It is not possible,
74164 is ser / in par out shift reg,
max7219 is led display driver,
if you have a problem with buying max7219 (may be the price is problem) you can order FREE SAMPLE from
**broken link removed**
Regards

 

[srikanthkrj]

cant we try in pic

pls givwe me hard and soft copy based on PIC controller
how to get on that one
pls help me on PIC progrramming:?:

 

[dotmatrix]

I made this project that scrol firt text from left to right and second text from down to up

 

[butch_pastor]

Hi! I am a newbie here and just downloaded the moving message display zip file. I am currently looking for ways to set up a moving message display with 10 pcs. 4 x 7 LED matrices. Is it possible to expand the 4 matrix moving message display circuit to 10?

Added after 27 minutes:

Correction!!!

I mean 7 x 8 LED matrix

 

[zuisti]

Hi,
look at my last post here on this thema:

zuisti

 

[valeryi]

thank you

 

[rojo]

Hello everybody,

I am rojo, one of the first guys to post messages in this thread/topic
few years ago ), (see the first page ), you can see there my moving message display, controlled by atmel uC, and a PC AT keyboard connected directly to uC,
all controlled by software written in C,
it`s very interesting to see how this thread evolved,lots of people actually contacted me
, and during this time, some of them actually rebuilt my display following my
schematics and instructions, some incorporated my keyboard part of the project
into their own.

Now i`m thinking of expanding the project, possibly building display with
two rows, controlled directly by PC keyboard, maybe usb version ,
and after that maybe even with wirelles keyboard . and with pc software
for downloading messages into display,

i.e. building something that could actually be sold for real money )

anybody interested in some sort of cooperation (software, hardware development or providing me with cheap bright LEDa, as I dont have much time
for fun these days, would be more than welcome.

or in general any questions regarding my original display would be more than welcome

bye

 

[conghieuhn]

thnakssssssssssssssssssssssssss

Added after 1 minutes:

thnkssssssssssssssssssssssss

Added after 2 minutes:

thanksssssssssssssssssssssss

 

[OBIALOR]

conghieniun why thanks thanks,.

 

[zuisti]

These are a beginner's first attempts, step by step.

I used the ELEKTOR's article (from 2001) as a starting point.

These are working in Proteus ISIS, so for the real-time simulation I made
many circuit simplifications (no row drivers, nor current limiting resistors..).
However, my friends builded the circuits yet (with my help) and all are working
as well.

All folders in the attached zip contain a working DSN file for ISIS, all sources
and the compiled HEX file too. There are also a screenshot ...

- ORIGINAL
89C2051, assembly. The article in PDF format and the original sources.

- MY_6CH
89C2051, assembly. HC164. Cascadable (pos switch), rs232 input

- MY_8CH
89C2051, assembly. HC595.

- SCROLL_8
89C2051, assembly. The first attempt to make a char by char scrolling...

- PIC_Scroll_C
PIC16F628A, MikroC. Switch to cascadable static / scrolling with speed switch

- PIC_Scroll_C_D
PIC16F628A, MikroC + CofMaker (for C source debugging)

- PIC_Scroll_PROTON
PIC16F628A, Proton Basic (PBP-like)

- PIC_Scroll_PROTON1
PIC16F628A, Proton Basic, v1.2, increased char buffer

Cheers
zuisti

 

[horsfab]

Thanks guys this thread saved my life!

 

[pcup]

Hi all Dear Experts.
I am constant browser of this thread for updates.
Have look at attached files. !! award winning design.!!
but i think it is limited to fixed modules of matrix. is it possible to expand this desing to say 20 to 30 modules of dotmatrix.

Thanx

 

[valeryi]

Thanks

 

[pcup]

Please help me to drive using I2C communication this Single Colored Led 5x7 dot matrix multiplexed with MAX6953.

Thank you

 

[joet_x]

hi all
how to update display data at eksternal eeprom 89c51?? so display dot matix became adaptive and usefull.

thanks

Added after 3 hours 58 minutes:

thanks for all information. good luck

 

[sajal1975]

i want a simple 89c2051+led+moving+message+display+eeprom+ps2(keyboard)

 

[aladdin_2005]

very good info thanks a lot