Arduino Scrolling 56x8 LED matrix

This is my version of the LED matrix. It is made up of SEVEN 8x8 LED matrices, seven Power Logic 8-bit shift registers (tpic6c595) to drive the 56 columns, and one 74HC595 to drive the 8 rows. Oh, I almost forgot, I also had to wire 56 resistors for each of the 56 columns. This project was A LOT of work, but it was fun too.

http://g33k.blogspot.com/2010/02/arduino-56x8-scrolling-led-matrix.html

Category:

People & Blogs

Tags:

• arduino
• led
• matrix

[ventolinmono]

I like how all the cables look. Anyway are they necessary?

[hwiguna]

@ventolinmono yes, all the cables are necessary. :-)

There were no extra wires. Each of the seven matrix displays require sixteen wires (eight for the rows and eight for the columns). 16 x 8 = 128 wires! That does not include the wires from the Arduino to the two 8-bit shift registers. :-)

[formulaformula1133]

nicenice, where did you get the big board? and what is the tpic6n595?

[hwiguna]

@formulaformula1133,

Thanks. I made the board myself out of a bunch of normal breadboards. Here's a blog I posted when I made it.

g33k.blogspot.com/2010/02/brea­dboard-customization-i-asked.h­tml

TPIC6c595 is a power 8-bit shift register. I used the TPIC6c595 to drive the 56 columns, whereas I used the popular 75HC595 to drive the 8 rows.

[joebro391]

Hey I really like this build! Did you use a separate power supply or was it all run off the Arduino? I guess cause there were technically only a few LED's on at a time, the 5V from the Arduino would be sufficient? Or am I wrong? By the way, where did you learn to do this? I've read a ton of books about microcontrollers and discrete components, but never actually read anything on how to implement something like this. Any direction you could point me in would be great. Thanks. -Joe

[hwiguna]

@joebro391 Glad that it inspires you to learn more. I plug a wall adapter to the Arduino and the led matrix is driven completely by the 5V off the Arduino. I learn from others in Arduino forum. If you haven't seen my blog entry for this project it is end of this video's description. The whole source code is linked at the end of that post. Thanks for leaving a comment. Have fun!

[g3rrar1]

my goodness... this is awesome. congrats!

[jmartich1]

HELL YEA.. That's hot...

[victorinopikmin]

no pasa la prueba del lápiz

[cmor2125]

Wow, this is really awesome. I don't understand why though? Why would you write that on that sign? You must be really good at arduino and can modify your sketches too. Check out my channel too if you have a chance.

[joebro391]

@hwiguna thanks buddy! -Joe