10x7 LED SignBoard (MERRY X MAS) - Page 3 - Electronic Circuits Projects Diagrams Free

Mike, K8LH · 7th January 2007, 05:00 PM

Thank you for the compliment. I suspect it is more work but I was hoping to make the drawings seem more visually interesting and intuitive.

Regards, Mike

Sceadwian · 7th January 2007, 05:02 PM

You should use something like Eagle for the crude start out trace, learning to use it is smarter than learning to place manually yourself. After it's placed it's traces you can tweak them to your hearts content. Doing the whole thing from start to finish on your own is really a waste of time, no matter how good you get at it.

Gayan Soyza · 8th January 2007, 01:59 AM

Quote:

Originally Posted by Mike, K8LH

The drawings were done using the built-in drawing tools in Microsoft Excel 2000.

Ya MS Office Packages does a great job also MS Paint.We wont consider much of these built in tools we mostly Prefer to advanced schematic design softwares. In my case I Preffer MS Excel for Schematics.It's So fun & very Creative.In the begining it takes some time to draw & after having experience can work quickly.

Thankx Mike for ur coloured Schematics.It's very useful.

Mike, K8LH · 14th January 2007, 04:10 PM

Someone uploaded that EPE "Giant LED Message Display" article on EDAboard in this thread; Led Message Display EPE Mag 2006/11

The Author actually did a very nice job coming up with a cohesive comprehensive 'system' for driving 5x7 matrix display modules. The design doesn't include row drivers and can't drive the displays to full brightness and doesn't include PWM brightness/fade control but is nonetheless a reasonably well thought out design.

linc85 · 25th January 2007, 04:40 AM

Help me out anyone,pls...
Tell me how the LED function...
and help me with a microprocessor program...
Thanks

Sceadwian · 25th January 2007, 05:04 AM

Yet another thread brought back from a restful grave by a first time poster with an unanswerable question.

42

pasanlaksiri · 8th February 2007, 07:58 PM

Bravo Gayan.

Peter_wadley · 8th April 2007, 02:42 PM

Quote:

Originally Posted by Gayan Soyza

I built a 10x7 led signboard using PIC16f84a.just to get some experience in making moving signs.It consist of count down,scaning from left & right,hold on display,elevator method,adding letters......etc.

Unfortunately I coudn't find any led matrix so I used normal 5mm led's.no mo memory space in the pic to add more patterns only 2 lines left in program memory.

see the attachment for a small video.

Nicely done Gayan!

v-nay · 10th April 2007, 08:16 AM

can anyone help me for the same project...(Scrolling LED message Display) using AT89c51????
im in real problem...
can anyone help me?

charmrus · 21st April 2007, 01:40 PM

if you look at an LED to long that your eye's will sparkle

sanjeewabcs · 27th March 2008, 09:34 AM

Hello Gayan....

Can u send me sample circuit and source code with *.hex fike

sanjeewabcs · 27th March 2008, 09:40 AM

can anyone help me for the same project...(Scrolling LED message Display) using PIC16F84A............?
im in real problem...
can anyone help me?

Gayan Soyza · 27th March 2008, 09:49 AM

I learned many things from this site visit this site & look under 5X7 project.
http://www.talkingelectronics.com/te...ive_index.html

I used a similar technic that I used in my design if you got the correct picture you can scroll any pattern that you like.For that you need to write more coding.The code they provided is only for one way scrolling & its very long in my method I used indirect addressing that will be more difficult to a beginner.

donniedj · 28th March 2008, 03:09 AM

All the techniques to drive large displays using special code are great. I have been in this game long enough to learn that years of developing clever schemes ends up almost in vain. Because one day soon, enters any one of the higher-pin count, double to quadruple code size, and peripherals galore cheaper than the older 18-pin devices to come along and disrupt all that "design around limitations" ingenuity.

astina76 · 10th May 2008, 03:49 PM

Thanks for all informations, I'm a newbie from indonesia. sorry for my english..
my schoolproject about led matrix, it's based on at89c55. but it's never done right.
so I look out for basic tutorial about it.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
PIC 16F84A 10x7 Display Project LED Falling Brightness.	Gayan Soyza	Micro Controllers	2	24th November 2006 08:35 AM
merry go round	sarah s	Electronic Projects Design/Ideas/Reviews	4	23rd March 2005 06:50 PM
merry xmas	bloody-orc	General Electronics Chat	0	24th December 2004 08:02 AM
Merry Christmas	Sherif Welsen	General Electronics Chat	0	26th December 2003 09:44 AM
Merry Christmas to All!	RonDumas	Micro Controllers	2	25th December 2003 09:36 AM

7th January 2007, 05:00 PM	(permalink)
Mike, K8LH	Thank you for the compliment. I suspect it is more work but I was hoping to make the drawings seem more visually interesting and intuitive. Regards, Mike

7th January 2007, 05:02 PM	(permalink)
Sceadwian	You should use something like Eagle for the crude start out trace, learning to use it is smarter than learning to place manually yourself. After it's placed it's traces you can tweak them to your hearts content. Doing the whole thing from start to finish on your own is really a waste of time, no matter how good you get at it. __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

14th January 2007, 04:10 PM	(permalink)
Mike, K8LH	Someone uploaded that EPE "Giant LED Message Display" article on EDAboard in this thread; Led Message Display EPE Mag 2006/11 The Author actually did a very nice job coming up with a cohesive comprehensive 'system' for driving 5x7 matrix display modules. The design doesn't include row drivers and can't drive the displays to full brightness and doesn't include PWM brightness/fade control but is nonetheless a reasonably well thought out design.

25th January 2007, 04:40 AM	(permalink)
linc85	Help me to design LED Matrix 12x12 using 8255 and 8085 Help me out anyone,pls... Tell me how the LED function... and help me with a microprocessor program... Thanks

25th January 2007, 05:04 AM	(permalink)
Sceadwian	Yet another thread brought back from a restful grave by a first time poster with an unanswerable question. 42 __________________ "Because I be what I be. I would tell you what you want to know if I could, mum, but I be a cat, and no cat anywhere ever gave anyone a straight answer, har har."

8th February 2007, 07:58 PM	(permalink)
pasanlaksiri	Bravo Gayan.

10th April 2007, 08:16 AM	(permalink)
v-nay	can anyone help me for the same project...(Scrolling LED message Display) using AT89c51???? im in real problem... can anyone help me?

21st April 2007, 01:40 PM	(permalink)
charmrus	if you look at an LED to long that your eye's will sparkle

27th March 2008, 09:34 AM	(permalink)
sanjeewabcs	sanjeewa Hello Gayan.... Can u send me sample circuit and source code with *.hex fike

27th March 2008, 09:40 AM	(permalink)
sanjeewabcs	can anyone help me for the same project...(Scrolling LED message Display) using PIC16F84A............? im in real problem... can anyone help me?

27th March 2008, 09:49 AM	(permalink)
Gayan Soyza	I learned many things from this site visit this site & look under 5X7 project. http://www.talkingelectronics.com/te...ive_index.html I used a similar technic that I used in my design if you got the correct picture you can scroll any pattern that you like.For that you need to write more coding.The code they provided is only for one way scrolling & its very long in my method I used indirect addressing that will be more difficult to a beginner. __________________ Gayan My Website http://gsmicro.blogspot.com/ Last edited by Gayan Soyza; 27th March 2008 at 09:51 AM.

28th March 2008, 03:09 AM	(permalink)
donniedj	All the techniques to drive large displays using special code are great. I have been in this game long enough to learn that years of developing clever schemes ends up almost in vain. Because one day soon, enters any one of the higher-pin count, double to quadruple code size, and peripherals galore cheaper than the older 18-pin devices to come along and disrupt all that "design around limitations" ingenuity.

10th May 2008, 03:49 PM	(permalink)
astina76	Thanks for all informations, I'm a newbie from indonesia. sorry for my english.. my schoolproject about led matrix, it's based on at89c55. but it's never done right. so I look out for basic tutorial about it.