Brads Electronic Projects Forum

bitfogav wrote:Hopefully this will help?

matrixconnections.jpg

oh thanks big! that clear all up!


i will post a video soon

thanks again!
marC:)

Hi Brad! Thanks for helping me out! I'm really have big trouble make this matrix works.. i will explain : i just want to know the pin 1 of the 7442 goes to the word's name side and the first green wire from the left?? and the pin 2 of the 7442 goes to the pin 1 from the left of the other's side of t...

i got these matrix from sure electronics, same as yours brad " http://www.sureelectronics.net/goods.php?id=230 i'm getting all mixed up.. i need a detailed draw of the connection.. along the brad smile schematic here's how i wired up all this : http://img26.imageshack.us/img26/4051/8x8face141.gif th...

Can you upload a photo? Hey Brad! :) I have uploaded the video on my youtube of brad smile, tell me if it is okay, because i tried the scrolling digits and it doesnt seems to work ok! tell me what you think! here's the video : http://www.youtube.com/watch?v=5_yaGuvUVRw&feature=youtu.be have a good ...

brad wrote:That's right bitfogav!

but Brad! The great race use red dot as well?
the schematic of brad smile is the same as great race?

thanks!
marC:)

Is it possible to make it scroll bicolor ? thanks! marC:) The Great Race and Santa’s Scramble schematic was only designed to use one colour. if you want a scrolling Matrix that uses bicolour then you might have to look at making a circuit like the 8x8 Game System. ok, so the santa's scramble is usi...

marC if your still having problems with coding the Assembly code then try this? The Scroller.asm It should scroll 1,2,3,4,5,6,7,8,9 Ive commented the section of code that you need to change if you want the matrix to say something else? Gavin Is it possible to make it scroll bicolor ? thanks! marC:)

bitfogav wrote:marC if your still having problems with coding the Assembly code then try this?

The Scroller.asm

It should scroll 1,2,3,4,5,6,7,8,9 Ive commented the section of code that you need to change if you want the matrix to say something else?

Gavin

thank you!
marC:)

brad wrote:No Problem - start small and then work your way up. That's how I did it!

BUT? Brad, santa scrabble is the same schematic as the great race??

thanks!
CYa!

nodoubtman wrote:

brad wrote:Let me know how you go!

santa scrabble is the same schematic as the great race??

thanks!
marC:)

Brad i give up for now, it's too difficult thanks for helping!
marC:)

brad wrote:Let me know how you go!

santa scrabble is the same schematic as the great race??

thanks!
marC:)

10pcs 8x8 Dot-Matrix 3mm dia. Bicolor LED Display (LE-MM103) No they are the Bicolour ones, so I would double check your connections?. But note that the Great Race schematic only uses the lower Red Row of LEDs. and your smile does use red dot too? how can i check the color of each dot ? thanks! mar...

Hi Brad! I have ordered these, but it shows that it's only green dot , is it normal? maybe it's the connection?..
i have perfectly followed the schematic on the great race??

thanks!
marC:)

nodoubtman wrote:

brad wrote:Could you post a photo of the underside of your matrix?

here is it : http://www.sparkfun.com/products/681

thanks!
marC:)

here's for you brad : http://retfie.com/bottom.jpg

brad wrote:Could you post a photo of the underside of your matrix?

here is it : http://www.sparkfun.com/products/681

thanks!
marC:)