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Proteus LED MATRIX design

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pasword :
**broken link removed**

---------- Post added at 18:34 ---------- Previous post was at 18:30 ----------

password :
88186511134907931461.jpg
 

dani222 said:
pasword :
**broken link removed**

---------- Post added at 18:34 ---------- Previous post was at 18:30 ----------

password :
88186511134907931461.jpg
Click to expand...



the link of this project is broken.

---------- Post added at 18:40 ---------- Previous post was at 18:39 ----------
alexan_e said:
PNP can be connected to the cathode to sink (collector to gnd) and is turned on with a low (0) in the base,
it depends on the matrix you are going to use , cathodes can be in the rows or columns.
ULN2003 should work too, it can ground (sink) the cathodes but with a high in the input (1) and not low as the PNP.

Alex

---------- Post added at 18:00 ---------- Previous post was at 17:57 ----------

I don't understand what you mean by common, you have to be able to light any of the 30 leds (dots) individually,
this is not possible with a common and 7 control lines, you need 5x7 control lines.

Alex
Click to expand...

**broken link removed**

this is worth mentioning sir..
 

Can the circuit to be modified with AT89S52, and using 8x8 dot matrix panel sir....
I want to build that, if u can help me write the assembler language and the modified design PLEASE...
I'm very interesting for this...., because I'm very newbie with microcontroller
 

sir you have an idea in making patterns in my 7x40 led matrix? :) i am using C..
Click to expand...

I have made 7x40 led matrix display with 89c51 using C. If you want any help you can ask me...
 
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