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gsmkima
Joined: 27 Aug 2004
Posts: 1
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 27 Aug 2004 16:01 Re: DIY Moving Message Display |
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Can someone halp me with my factory made Led message display..?
It stop to work...
I have remote control for it...And COM connector on it...
Do not have any software...I made programming only by remote control...
I do not know who made it... 
It is 198cm height..Single line...Red color only...
I open it..And made some research... 
I think my control panel is dead..I mean eeprom has been erased..Why...I do not know...
Now...Can somebody tell me how to reprogram it..???
On main panel for contrlor is written; "STARREACH MX37CPU P-0047041"...
This is all info which I can get from it...
CPU is Z80 18008PSC..Something like for old Commodore...
If someone need any more info...Let ask...And I will see if I can get more about it....
10x in advanced...
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azizanismail
Joined: 01 Sep 2004
Posts: 1
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| 01 Sep 2004 17:02 Re: DIY Moving Message Display |
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| Hai, can somebody help me, i need software for LED Moving Message Display for 68K Microprocessor using EasY68K Program, thanks You
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marn
Joined: 08 Oct 2004
Posts: 1
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| 08 Oct 2004 5:43 Scrolling and blinking Dot Matrix |
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[
hi i need some programm about dot matrix message display using assembly language for project and design.pls.help me
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Picstudent
Joined: 05 May 2004
Posts: 487
Helped: 12
Location: India
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| 09 Oct 2004 7:53 Re: Scrolling and blinking Dot Matrix |
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| marn wrote: |
[
hi i need some programm about dot matrix message display using assembly language for project and design.pls.help me |
http://noisybox.net/electronics/LED_sign/#desc
The sourse for the above will be available on request from the Author.
What about the large animated displays using for advertisement ? They use bicolur or three colour LEDs I think. How the patters are created? Is there any special softwares or methods other than Manual coding.Is it PC controlled or running from a uC?
Picstudent
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wolverine
Joined: 26 Aug 2004
Posts: 4
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| 23 Oct 2004 8:04 Complete Listing of parts for DIY Moving Message display... |
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| ME wrote: |
This link may be very useful:
h**p://home.wanadoo.nl/electro1/avr/dotmatrix.htm
It uses an Atmel AVR AT90S2313 for controlling eight 5x7 LED dotmatrix displays.
[img]h**p://home.wanadoo.nl/electro1/avr/images/rescroll.gif[/img]
[img]h**p://home.wanadoo.nl/electro1/avr/images/test_scroller.gif[/img] |
hi, can you give me the complete list of all the parts used in this running message display... please really need it badly... thanks in advance.. 
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lgeorge123
Joined: 13 Jun 2004
Posts: 50
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| 02 Dec 2004 6:48 Re: DIY Moving Message Display |
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Hi,Rojo,there are somethings I still don't understand!!!
1) row=0x02,what is it stand for?
2) porta=row,what is it stand for?
3) can you post the schematics diagram?
Thanks a lot !!!!!!!!!!!!!!!!1
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rojo
Joined: 03 Jan 2004
Posts: 17
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| 07 Dec 2004 12:12 Re: DIY Moving Message Display |
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it already posted, like i told u in the private mssg ,u can find schematic
in the zip file here http://www.edaboard.com/ftopic58756-30.html,
i.e. the previous page of this thread ))
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sk16
Joined: 08 Jan 2005
Posts: 1
Location: india
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| 08 Jan 2005 7:27 Re: DIY Moving Message Display |
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Hi all,
I am currently carrying on a project on bicolor bilingual moving LED display using 89c51.Can you send me the software program in C or VB 6 language for interfacing the display to computer using MAX232 ?
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rojo
Joined: 03 Jan 2004
Posts: 17
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| 23 Jan 2005 20:02 Re: DIY Moving Message Display |
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heres the zip file of my led moving message display
for those who need it
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DownSW
Joined: 20 Jan 2005
Posts: 11
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| 24 Jan 2005 7:24 Re: building your own moving message complete guide |
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I have done a big one. Show it here
http://www.edaboard.com/ftopic105285.html
Contact me if u need detail help.
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mrbautista
Joined: 13 Jan 2005
Posts: 25
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| 24 Jan 2005 10:49 Re: DIY Moving Message Display |
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GOOD DAY,
Anybody experienced in making 5X7 (10 Characters) MOVING DISPLAY using PICBASIC PROTON+, PIC16F877 and PC to Download a characters via serial port? Please share....
More Power
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mrbautista
Joined: 13 Jan 2005
Posts: 25
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| 25 Jan 2005 8:20 Re: DIY Moving Message Display |
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Good Day.
Can anybody developed VB for 5X7 (10 pcs) using PIC16F877? The VB sample below (link) is 6X6 if anyone developed it please share. I'm dummy about VB...Thanks
http://www.edaboard.com/viewtopic.php?t=105728&highlight=
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hassan1980
Joined: 14 Jan 2005
Posts: 209
Helped: 3
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| 03 Feb 2005 12:44 Re: DIY Moving Message Display |
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I am looking for a full project for moving massege display depending on pic 16f84 microcontroller and serial eeprom and pc interface.
Thanks to you.
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mitesh
Joined: 13 May 2002
Posts: 288
Helped: 6
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| 15 Feb 2005 11:23 Re: DIY Moving Message Display |
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| I want a movng dispay for a large graphics display using psoc controller.
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shigure
Joined: 17 Apr 2005
Posts: 11
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| 17 Apr 2005 12:16 Re: DIY Moving Message Display |
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Hey guys. I just got a project that requires me create a LED digital display that has around 11 to 18 characters.........(ie: Dept. of Engineering using either upper case only or mixed upper + lower case characters)
The previous projects were like nuts compared to this as we never used an Eprom in our project before and we just started using C language.
I was trying to come with either a running display, or a simple series character by chracter display.
The 5 by 7 (http://home.wanadoo.nl/electro1/avr/dotmatrix.htm)
or 7 by 10 (http://www.bobblick.com/techref/projects/ledsign/ledsign.html)
running display really seems very promising if it could be linked to form a long display circuit. I've seen a similar design, which runs on smaller LED's.
Can anyone give your point of view based on the idea/concept i am trying to use?
I would really appreciate it. Thank you
Added after 1 hours 13 minutes:
My appologies to everyone for being so ignorant.
I forgot all about the previous two existing pages, and after reading them I found msgs by Rojo, and yes......
Rojo! You have a wonderful project!
I was wondering, if you designed a circuit to allow your moving LED display to run on a microcontroller instead? Using simmbus mother board and an Eeprom ?
also, it would be possible to use multiple 7 by 10 displays instead rite?
I found this site :http://skywebs.com/~glenn/wmess.htm
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beny
Joined: 01 Apr 2004
Posts: 30
Location: Oran, Algeria
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| 17 Apr 2005 21:57 Re: DIY Moving Message Display |
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I am working in a led moving sign with PIC16F84 and four (4) 74HC164 shift registers, now i can move a message, read from an EEPROM andscroll the message on a matrix of 7X23 leds and do somme special effects on the "screen". I need some help with programming the eeprom with PC, it is hard to program it byte by byte (eatch character take 5 bytes, i do'nt use decoder ). I made a simple program with turbo c under dos os but it only program the EEPROM with a file, i am not goog in high langage. Other problem is that I want to make a more large screen and the pic have only 64 byte in ram and can't goto more a 50's rows (more than 5 characres at time). if you have any idea or a soft to program messages in the eeprom.
Excuse my english
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NeoMatrix
Joined: 25 Apr 2005
Posts: 35
Helped: 1
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| 26 Apr 2005 6:10 Re: DIY Moving Message Display |
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Hello To every one i reall all the posts i am very much interested to design the moving message display i buyed yesterd pic16f628,pic16f877a and atmel chips 2051 ,4051 i have atmel and chip p16pro programmer and i have 74hc164 and 74hc595 i don't no much about embeded by searching this i found so i want to design i make 1 5x7 dot matrix and some one sended me code in assembly i don't no assembly i am a visual basic programmer i know little bit c
and i tried to download its keep giving message i can't download i don't have points
pls can any bedy explain me how to do that with schematic and source if not atleast can u tell me how to do in microbasic or c in a simple
plssssssssssssssssssssssssssss
waiting for reply
Added after 5 minutes:
| beny wrote: |
I am working in a led moving sign with PIC16F84 and four (4) 74HC164 shift registers, now i can move a message, read from an EEPROM andscroll the message on a matrix of 7X23 leds and do somme special effects on the "screen". I need some help with programming the eeprom with PC, it is hard to program it byte by byte (eatch character take 5 bytes, i do'nt use decoder ). I made a simple program with turbo c under dos os but it only program the EEPROM with a file, i am not goog in high langage. Other problem is that I want to make a more large screen and the pic have only 64 byte in ram and can't goto more a 50's rows (more than 5 characres at time). if you have any idea or a soft to program messages in the eeprom.
Excuse my english |
Hello To every one i reall all the posts i am very much interested to design the moving message display i buyed yesterd pic16f628,pic16f877a and atmel chips 2051 ,4051 i have atmel and chip p16pro programmer and i have 74hc164 and 74hc595 i don't no much about embeded by searching this i found so i want to design i make 1 5x7 dot matrix and some one sended me code in assembly i don't no assembly i am a visual basic programmer i know little bit c
and i tried to download its keep giving message i can't download i don't have points
pls can any bedy explain me how to do that with schematic and source if not atleast can u tell me how to do in microbasic or c in a simple
plssssssssssssssssssssssssssss
waiting for reply
Added after 3 hours 34 minutes:
Hello Every Bedy
i am very new to embeded i need some help since 4 days i am try to get help from this websties and forms not good luck
i try to get help from the forms but i not get any help as in ur website in Pic Microcontrollers in assembly there is 1 example with 7.7 Shift registers
the link is http://www.mikroelektronika.co.yu/english/product/books/PICbook/7_07chapter.htm
i build that same and in that it says 1st the 7,6,5,4,3,2,1 leds glow but mins is 8,7,4,2,1 its remains on its not flickering and i don't no assembly is this example is in microbasic it will help me alot to understand about Output ShiftRegister if i understand this i can design the moving message displays of 10 5x7 dot matrix and i want to know that in which its used weather its USART or SPI
i hope u will understand what i am looking for my intention to understand much and good about shift registers so chat i can buil the led moving message displays
plssssss i need help i am kindly requesting to this mikroelektronika team to consider this
thanking you
waiting for ur reply
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antedeluvian
Joined: 23 Apr 2005
Posts: 68
Helped: 13
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| 26 Apr 2005 14:22 Re: DIY Moving Message Display |
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Mitesh:
For some information on driving a dot matrix display using a PSoC, you could refer to my article from Circuit Cellar on driving the NKK smartswitch. The difference to a regular dot matrix is that it scans from top to bottom not left to right (or right to left). You can find the article here:
http://www.nkksmartswitch.com/Uploads/DrivingSSPart1and2.pdf
To all:
It seems to me that the topic of character generation has only been implicitly mentioned in these discussions. It is possible to create a character set, or even basic figures using Microsoft Excel, see my design idea in EDN based on one by Alberto Ricci Bitti:
http://www.edn.com/article/CA207103.html
Advertisement alert: There is a much improved version of this idea in my book
"Excel by Example : A Microsoft Excel Cookbook for Electronics Engineers" ISBN 0750677562, published by Elsevier/Newnes.
-Aubrey Kagan
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rojo
Joined: 03 Jan 2004
Posts: 17
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| 28 Apr 2005 0:00 Re: DIY Moving Message Display |
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just want to correct you here:
my LED display is controlled by a microcontroller, PC keyboard and 16x2 lcd screen, controller has got 512 bytes of eeprom which can be used to store
messages, my prototype is just a first version , havent had time to implement
that yet , soon
my hardware is very simple when u look at what functionality u get with the display
- eeprom storage
- no need for downloading messages from pc like with most of the similar
displays , type them in directly on the connected keyboard,
- u see what u type on the lcd
and like i said before theres lots of room for improvement and most of it can be done just in software
ultimately i want to use more powerfull controller with more ram so i can
use a real time operating system on it to simplify the controlling software,
and also implement the wireless connection betweeen the keyboard and
the display, i would need two controllers in that case actually, one one the led
display module , and the other one on the pc keyboard module, could probably
do it without real time OS, but its too much hassle, i prefer real time OS, results
in cleaner more understandable controller code.
as for the 7x10 matrix, that can be done easily like we discussed it thru private mssg, u would just need to do few minor changes in the hardware and software
| shigure wrote: |
Hey guys. I just got a project that requires me create a LED digital display that has around 11 to 18 characters.........(ie: Dept. of Engineering using either upper case only or mixed upper + lower case characters)
The previous projects were like nuts compared to this as we never used an Eprom in our project before and we just started using C language.
I was trying to come with either a running display, or a simple series character by chracter display.
The 5 by 7 (h**p://home.wanadoo.nl/electro1/avr/dotmatrix.htm)
or 7 by 10 (h**p://www.bobblick.com/techref/projects/ledsign/ledsign.html)
running display really seems very promising if it could be linked to form a long display circuit. I've seen a similar design, which runs on smaller LED's.
Can anyone give your point of view based on the idea/concept i am trying to use?
I would really appreciate it. Thank you
Added after 1 hours 13 minutes:
My appologies to everyone for being so ignorant.
I forgot all about the previous two existing pages, and after reading them I found msgs by Rojo, and yes......
Rojo! You have a wonderful project!
I was wondering, if you designed a circuit to allow your moving LED display to run on a microcontroller instead? Using simmbus mother board and an Eeprom ?
also, it would be possible to use multiple 7 by 10 displays instead rite?
I found this site :[url]h**p://skywebs.com/~glenn/wmess.htm[/url] |
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Weis Guy
Joined: 02 May 2005
Posts: 76
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| 03 May 2005 9:56 Re: DIY Moving Message Display |
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| Hello guys, Im new here at EDABOARD..This is my first post..Im having a difficult time in programming PIC..Im planning to create a MOVING MESSAGE DISPLAY using PIC and I will be using MAX6952 or MAX6953..Please help me or give me any concept about this.thanks ang more power to you friends.
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glenjoy
Joined: 01 Jan 2004
Posts: 1021
Helped: 47
Location: Philippines
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| 03 May 2005 10:02 DIY Moving Message Display |
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| What language do you know how to use? That is the first question to be asked.
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shigure
Joined: 17 Apr 2005
Posts: 11
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| 12 May 2005 18:08 Re: DIY Moving Message Display |
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96 by 7 leds, matrix display. basic 5mm ones. +5v supply. how much current would I roughly need? *sigh :/
Added after 13 minutes:
hmmm~ anyone here done a good digital clock display or know where to find projects on it?
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tobb
Joined: 20 Sep 2002
Posts: 87
Helped: 1
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| 14 May 2005 9:27 Re: DIY Moving Message Display |
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HI..
| shigure wrote: |
96 by 7 leds, matrix display. basic 5mm ones. +5v supply. how much current would I roughly need? *sigh :/
Added after 13 minutes:
hmmm~ anyone here done a good digital clock display or know where to find projects on it? |
I have done Project about 80 of 8*5 dot 5mm or about 3200 DOT..
It take current less than 2A when Fully Scan. Here Picture of it
(About 15 cm * 150 cm) note that my camera is fast shutter so the charactor wont
show right in picture because scaning not fast as shutter
also I have done a big clock porject .. but still have some Problem with DS1307 RTC because when turn it on for serveral days it going slower
I will try to make doc about it if you want
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tobb
Joined: 20 Sep 2002
Posts: 87
Helped: 1
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| 17 May 2005 7:14 Re: DIY Moving Message Display |
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Hi .. This is my PCB and Schematic of Dot matrix module. I devide my dot matrix to 8*20 (4 of 5* in to one module and connect each module as big as I want.
I use TPIC6B595 Power shift register and AVR 90S8515 with EXternal 32 K sram
SOurce will be follow
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gorkin
Joined: 27 Feb 2002
Posts: 605
Helped: 8
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| 17 May 2005 15:26 Re: DIY Moving Message Display |
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Hi brother!
The schematic missing some parts, You can upload all schematic?
Thanks, Gorkin.
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tobb
Joined: 20 Sep 2002
Posts: 87
Helped: 1
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| 17 May 2005 22:05 Re: DIY Moving Message Display |
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Hi.. My Schematic is OK.. Value for R is varies by Voltage Of LED
The input connector SV3 is V+ for LED that from Transister (In this part is Depend on which voltage you want to use..
Here a transister Driver that I use
For Me I use 5V and R220Ohm Drive 8bit Transister with 74HC595
So Overall from Micro -> Board will need 3Bit Control TPIC6B595 for Column (Cathode) and 3Bit for 74HC595 (For Row which Control transister to source voltage )
For now I try to Change my code because I done in "Thai" with Thai Charactor Code So Just wait a bit
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shigure
Joined: 17 Apr 2005
Posts: 11
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| 18 May 2005 18:49 DIY Moving Message Display |
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WHoa.... so complex @_@. I am planning to use blocks of 5 by 7 LEd blocls, prob using either 40 by 7 or 80 by 7 display. maybe something like http://home.wanadoo.nl/electro1/avr/scroll5.htm. or the one rojo is using. I'm already troubling him alot.... I hope someone can help me figure out how to use LED drivers to power up 8 column LEDS at a time, or the LED driver section. Is it possible to eliminate the usage of transistors? I need a very compact design for the display board. Btw Tobb, have you fixed the prob with your clock display? WHoa, its really coool..... I would like to make one like that.....
btw, regarding the website, i would rather be connecting 7 pins to the LEd driver without having to go thru the IC in the middle. And then there's the driver for each column, if only it could work perfectly with just the driver and resistors ..... that would save alot of space.... any ideas or suggestions? Thank you.
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tobb
Joined: 20 Sep 2002
Posts: 87
Helped: 1
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| 18 May 2005 19:20 DIY Moving Message Display |
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Hi.. The reson that I use 74HC595 to Drive Transister for 8 Row Led because I could connect many driver board and still use only 3pins of micro controller to controll Row..
Another thing is if you connect long column for example 80 by 7 with only One ROW driver it will be to slow for scan and led will flicker (Because it need to run too long way for one scan loop).. That why I need to make Driver module for each Dot matrix module
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shigure
Joined: 17 Apr 2005
Posts: 11
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| 19 May 2005 14:45 Re: DIY Moving Message Display |
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tobb, could you like take a look at this pic?
the site is from http://home.wanadoo.nl/electro1/avr/scroll5.htm
Sigh, i wish my lecturers could be like rojo or tobb, they don't really cover this much during discussions, leaving us rather confused and helpless.....
Added after 1 minutes:
this pic sorry.....forgot to post it. It has appeared previously on this thread.
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infomaster
Joined: 20 Dec 2003
Posts: 8
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| 31 May 2005 23:08 Re: DIY Moving Message Display |
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Hello all,
@tobb,
We are waiting for your controller board schematics and microcontroller code.
I hope you did not forget us.
regards,
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