Arduino 2-Digit 7-Segment Display Counter: Sketch
This is part 3 in the project to control a 2-digit 7-segment display using an Arduino. Here is the first post on this 2-digit 7-segment display project.
So now on the the meatier sections of the sketch for this project:
Common anode displays are not immediately obvious as a segment is lit when the corresponding pin is made LOW. You might be surprised, though, that common anode displays are most often used because they can be used with 74xx series logic data-selector chips and PNP bipolar transistors.
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