Why on earth would you be holding the latch high and gating the enable? No wonder it is dim.
Common sense suggests the opposite.
And - why are you not using MAX7219s which perform all of the multiplexing for you?
Why on earth would you be holding the latch high and gating the enable? No wonder it is dim.
Common sense suggests the opposite.
And - why are you not using MAX7219s which perform all of the multiplexing for you?