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Old 26th March 2004, 06:21 PM   (permalink)
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No, this is the schematics of a 16x16 led. You may try to build it. You must use some transitors like this. Because, if you connect them directly, you cannot control all the matrix

1
2
3
_ A B C

If I connect the led like this picture matrix.jpg, and I want to set A1 off, so A: LOW and 1 LOW or A: HIGH, 1:HIGH

Then, if A: HIGH, I cannot set A2 LOW
if 1: LOW, I cannot set B1 HIGH

So, try it with the first picture.
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File Type: gif LED_matrix_schem.gif (45.2 KB, 1233 views)
File Type: jpg MATRIX.JPG (6.3 KB, 1232 views)
falleafd is offline  
Old 12th January 2005, 03:04 PM   (permalink)
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u can use this book if u use c language
njbibin is offline  
Old 10th June 2005, 01:22 PM   (permalink)
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Quote:
Originally Posted by falleafd
http://www.lvr.com/

Here is the link which help using almost port types. And if you wanna to control LTP in win XP, you have to boot PC in DOS, then rename DLLCACHE folder to backup_dllcache (for example). Finally, you copy .dll to SYSTEM32.

In win XP, this folder contents many .dll files which are used to back up dll files in system32. If you rename this folder, win XP cannot backup dll files. If you wanna make win XP normal, rename again it to dllcache, your windows will be clear as it used to be. Now, you can use almost languages to control LTP.

In this link they give a clear detail.

The problems usually come as we need to drive a robot with the simulator running. Then we should use visual languages. This link help muchie.

By the way, this link have many tutorials on port types.

Good luck
Hi all,

U will got probelm to access parallel port on Windows XP, WIN 2K, NT.

U can use the porttalk driver from www.beyondlogic.org or IOdll from www.geocities.com/bagtool/parallel_access.html to get access to parallel port.

free 8)
free1 is offline  
Old 15th June 2005, 01:40 AM   (permalink)
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Stop replying to old threads

You newbies never learn
__________________
Robotics is heaven in my book.
Roboticinfo is offline  
Old 15th June 2005, 08:26 AM   (permalink)
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somenewbies are slower than others
pittuck is offline  
Old 15th June 2005, 08:27 AM   (permalink)
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I agree with you there.

__________________
Robotics is heaven in my book.
Roboticinfo is offline  
Old 16th June 2005, 03:17 AM   (permalink)
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Quote:
Originally Posted by free1
Quote:
Originally Posted by falleafd
http://www.lvr.com/

Here is the link which help using almost port types. And if you wanna to control LTP in win XP, you have to boot PC in DOS, then rename DLLCACHE folder to backup_dllcache (for example). Finally, you copy .dll to SYSTEM32.

In win XP, this folder contents many .dll files which are used to back up dll files in system32. If you rename this folder, win XP cannot backup dll files. If you wanna make win XP normal, rename again it to dllcache, your windows will be clear as it used to be. Now, you can use almost languages to control LTP.

In this link they give a clear detail.

The problems usually come as we need to drive a robot with the simulator running. Then we should use visual languages. This link help muchie.

By the way, this link have many tutorials on port types.

Good luck
Hi all,

U will got probelm to access parallel port on Windows XP, WIN 2K, NT.

U can use the porttalk driver from www.beyondlogic.org or IOdll from www.geocities.com/bagtool/parallel_access.html to get access to parallel port.

free 8)
Great site free1 that beyond logic one had just what i was looking for a usb pdf.. thanks..
williB is offline  
Old 7th July 2005, 07:16 PM   (permalink)
Default Parallel Port Programming for Computer

I had already done this project and make a program in C .If you want this program you can mail me at ashutosh_robotics@yahoo.com.the suitable circuit is also with me.
Elektor is offline  
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