Hello david s,

At the following web site there is an excellent description of a PIC IC development board describing how to use 74LS595 IC's (and a bunch of other interesting stuff). It has a schematic on how to hook up two 74LS595 to two led displays. This might help you get an idea of how to hook up 74LS595's.

http://www.cs.montana.edu/~harkin/c...nBoard.pdf

Good luck,

Charles Bannister

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