Re:

>how would I catch the serial bytes that I am sending out to each matrix?
>
>is there such a thing as a latch that has a serial input?

74HC595 comes to mind.  See the schematic in AN-7 on our website for
an example of driving an LED bargraph. It uses 3 wires (data, clock
and strobe). Since clock and data are common, you need 2 + 1 x
#(595s) signals in your design.
--

  ______________________________________
   Andrew E. Kalman, Ph.D.   aek@pumpkininc.com

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu