Help needed in building scrolling LED display using PIC16F877A...

spinnaker

Joined Oct 29, 2009
7,830
You know that there are several free tools for drawing a schema? I's suggest you use one.

Eagle
Diptrace
ExpressPCB

... and there are more, just take your pick!

With Express PCB being the easist to learn to use. Five minutes using it and you will be producing schematics.

Diptrace also easy to use not as easy as Express PCB but much more powerful.

Eagle is really hard to learn but supposed to be very powerful.



What you provided really isn't a proper schematic. These tools will help you with that,
 

SgtWookie

Joined Jul 17, 2007
22,230
WE can't tell what would be the most convenient way to connect the LED array to the microcontroller.

However, I'll suggest that it would be best if you used a single 8-bit port that won't be needed for any other function.
 
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