Hi, guys. I'm trying to do a project using four 5x7 led dot matrix display. How do i go about configuring the hardware? Do i need ULN2803 , 74HC595 shift register to program it? Can you guys give some links on how i should set up ? Thanks very much

4 5x7 DOT MATRIX DISPLAY

system April 29, 2012, 10:01am 4

I try to connect all the column to 74hc595, what should i do with the rows? http://www.arduino.cc/en/Tutorial/ShiftOut say connect all to ground ?

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