Simple Moving Message Display

• Feb 21, 2008

• #1

S

suryawomshi

Newbie level 2

Joined

Feb 21, 2008

Messages

2

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,302

16f877a moving message

Hello any one can help

i need to make Moving message Display with PC Interface

 

• Feb 21, 2008

• #2

E

electronicus

Full Member level 4

Joined

Aug 19, 2005

Messages

221

Helped

36

Reputation

72

Reaction score

19

Trophy points

1,298

Location

Romania

Activity points

2,427

moving message display

Look here: **broken link removed**

 

• Feb 21, 2008

• #3

S

suryawomshi

Newbie level 2

Joined

Feb 21, 2008

Messages

2

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,302

font of leddisp

i need

EPE MAG 2006/11 Issue which has MMD with PC

Thanks

 

• Feb 21, 2008

• #4

A

adityatyagi99

Newbie level 3

Joined

Feb 21, 2008

Messages

3

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,304

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

 

• Feb 21, 2008

• #5

andre_luis

Super Moderator

Staff member

Joined

Nov 7, 2006

Messages

9,595

Helped

1,190

Reputation

2,399

Reaction score

1,208

Trophy points

1,403

Location

Brazil

Activity points

55,686

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 ).


+++

 

• Feb 22, 2008

• #6

H

H_D_R

Full Member level 6

Joined

Jan 31, 2008

Messages

329

Helped

26

Reputation

52

Reaction score

9

Trophy points

18

Location

India

Activity points

0

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.

 

• May 26, 2008

• #7

C

claudio_r

Newbie level 2

Joined

May 26, 2008

Messages

2

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,288

electronicus said:

Look here: **broken link removed**

Click to expand...

hy
did anybody build this project
i need some help
thx

 

• May 26, 2008

• #8

E

electronicus

Full Member level 4

Joined

Aug 19, 2005

Messages

221

Helped

36

Reputation

72

Reaction score

19

Trophy points

1,298

Location

Romania

Activity points

2,427

Yes. I build the sign. Work very wel.

 

• May 26, 2008

• #9

P

pasicr

Advanced Member level 1

Joined

Aug 13, 2005

Messages

440

Helped

39

Reputation

80

Reaction score

29

Trophy points

1,308

Location

Macedonia

Activity points

4,213

Here is:
http://www.woe.onlinehome.de/e_projects.htm#ledfont
regards

 

• May 27, 2008

• #10

C

claudio_r

Newbie level 2

Joined

May 26, 2008

Messages

2

Helped

0

Reputation

0

Reaction score

0

Trophy points

1,281

Activity points

1,288

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!

 

• May 31, 2008

• #11

O

OBIALOR

Member level 5

Joined

Nov 12, 2005

Messages

84

Helped

8

Reputation

16

Reaction score

8

Trophy points

1,288

Location

Nigeria

Activity points

1,720

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

 

• Oct 29, 2009

• #12

M

madicalphy

Member level 4

Joined

Jul 22, 2007

Messages

68

Helped

5

Reputation

10

Reaction score

2

Trophy points

1,288

Activity points

1,630

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**

 

• Feb 20, 2010

• #13

S

sohail_akram

Member level 2

Joined

Feb 26, 2006

Messages

53

Helped

7

Reputation

14

Reaction score

5

Trophy points

1,288

Activity points

1,528

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.

 

• Feb 24, 2010

• #14

Fidelis Anyanti

Advanced Member level 4

Joined

Jun 28, 2006

Messages

113

Helped

20

Reputation

40

Reaction score

16

Trophy points

1,298

Location

Nigeria

Activity points

1,941

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.

 

• Mar 5, 2010

• #15

S

s.k.sahoo

Junior Member level 1

Joined

Jul 18, 2008

Messages

17

Helped

1

Reputation

2

Reaction score

0

Trophy points

1,281

Activity points

1,471

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