Can I convert This project below " 10x8 LED Matrix + Arduino" into " 8 X 8 LED Matrix

Thread Starter

noor22

Joined Oct 11, 2012
19
i get answer from someone
he said
Probably yes. You'll need to know how much current/voltage parallel can source or sink. I'm sure it is in the range of arduino, but may be +-12V. Check!

Serial is another option. Again, it'll probably be RS232 at +-12V. You can get RS232 to TTL converters though, and a serial to parallel chip. That'll let you control your LEDs via a serial port.

how can i make the new circle with this option
I asked this person but i didn't get any answer yet:confused::confused:
 

takao21203

Joined Apr 28, 2012
3,696
Parallel port is deprecated for years.

Have a look this: http://pic.hitechworld.org/data/ledmatrixtag

The source code is included.

The program is built in a way the matrix size is independent from the scrolling. The image is at first built inside RAM.

It can be modified for different number of LEDs.
It should be possible to change for different PICs, and for different controllers. The PIC dependent code is all isolated so you only need to change that.

If you use my code, feel free to link to the URL.
 

takao21203

Joined Apr 28, 2012
3,696
Microprocessor could be anything.

A microcontroller is a microprocessor, only the RAM + EPROM is built into the chip. And microprocessor are very expensive and difficult to work with.

There are not many microprocessor LED matrix circuits on the internet.

An Arduino is an ordinary microcontroller by the way.
 

mcgyvr

Joined Oct 15, 2009
5,394
What do you want?.. ALL the information you need has already been provided.. We won't do your homework for you.
 

Thread Starter

noor22

Joined Oct 11, 2012
19
:(:confused:
I wanted to project the idea close to the idea of the first project
Be used LED and microprosser
And the Circle clear it:confused::mad::(
 
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