Common anode LED display solution

It is using the same schematics

with a few exceptions:

  • common anode switching transistors are of PNP type (best solution is to take low power switching transistors),
  • resistor from pin 3 of decoder 4051 should be grounded,
  • source code should be slightly changed (Changes are in the source code commented. You should uncomment them and comment "cathode" blocks.)

common anode schematics