5x7 led matrix driven by pic 16f84a

Discussion in 'Embedded Systems and Microcontrollers' started by houssem, Apr 28, 2013.

  1. houssem

    Thread Starter New Member

    Apr 28, 2013
  2. absf

    Senior Member

    Dec 29, 2010
    Are you simulating or did you build the circuit on breadboard?

    I tried simulating it on proteus but the 5x7 matrix in proteus is different from yours. Your circuit needs common anode on row and common cathode on column so I used the 8x8 matrix which I can reverse the row and column. But the display was quite broken as it was very hard to get the correct display timings.

    But I checked through the codes and I think it is OK.

    Last edited: May 4, 2013