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Simple Moving Message Display

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suryawomshi

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16f877a moving message

Hello any one can help

i need to make Moving message Display with PC Interface
 

font of leddisp

i need

EPE MAG 2006/11 Issue which has MMD with PC

Thanks
 

moving message dispaly

hi
can any one help me out!

in understanding simple moving display but by using pic 16f877a microcontroller

i not getting hw to do the coding in c
i m in complete lost
 

led moving message display using ccsc

I did it using PIC16f877 programmed in CCS compiler to matrix containning 9 digits w/ size 8x12 dots LEDs. Almost 1/3 of program memory was used to ASCII mapped look-up table. I used RS-232 port to receive string from PC.

The project was divided at 3 boards: Driver+Matrix+Control. I used the same clock signal along all boards, without buffering. It imposed a limit of cascading to only 9 ( 8x12 ) characters. Each matrix board contains 3 characters. Each pannel has 1 Control board and a lot of Driver and Matrix boards ( 1 matrix per 1 driver ).


+++
 
adityatyagi99 said:
hi
can any one help me out!

in understanding simple moving display but by using pic 16f877a microcontroller

i not getting hw to do the coding in c
i m in complete lost
Click to expand...


i think you should start new thread..
so people will not get confused when answering you and that mr.suryawomshi
thank you.
 

electronicus said:
Look here: **broken link removed**
Click to expand...
hy
did anybody build this project
i need some help
thx
 

the problem is that i cannot write the font or text in eeprom.

I`m starting the program (leddisp.exe), then I`m opening the font (basic.ldf) and then when I click on the "Write font" button, it`s appearing the "Writing font" window and nothing it`s happening!
 

hello electronicus can it work with attiny2313,or can you help to recomple it to attiny2313,.
 

for i/o expension and contol 74ls595, and 74ls164
and interface with micro-controller and c code
**broken link removed**

Added after 3 minutes:

for i/o expension and contol 74ls595, and 74ls164
and interface with micro-controller and c code
**broken link removed**
 

This is complete 5x7 19 matrix Moving message display with RS232 Control.
atmel 89c51 is used.column are scan by 74ls164
source code are in c keil c51
Proteus simulation file is included.
 
Sohail_akram

This is a very good project, thanks for sharing your knowledge.

Is it possible to Drive the rows with 7 pins from Port2 thereby eliminating the use of 74145 ?

Thanks alot.
 

Hello Mr Shoil,
thanks for the help. MSG2009.hex file is working allright. do you have the source code in assembly of this? please post .
thanks
sks
 

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