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, 2:48pm 6

hey, i include the uln2803. but i wan reduce the number of pins. that why i'm using 74hc595.

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