Proteus LED MATRIX design

dani222 said:

Friend
The area marked on the image below Now :

https://s23.aks98.com/files/68182104868591248053.jpg

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dani222 said:

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

password :

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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

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dani222 said:

proteus 7.7

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dani222 said:

yes
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dani222 said:

Friend
The area marked on the image below Now :

https://s23.aks98.com/files/68182104868591248053.jpg

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dani222 said:

I have some link love from some projects :

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sir you have an idea in making patterns in my 7x40 led matrix? i am using C..

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