when plugged in the L293D motor drive shield, possibly to use pin2 - pin 13 for other purpose on a MEGA2560?
Hard to say from that picture. Do You have any example code where it is possible to read what I/O pins are used? Post a link to that L293D board.
No, because most of those pins are already used by that shield, except pin 2 and 13.
Why just these pins? The Mega brings many more pins to you
PWM-enabled pins are listed on the AnalogWrite page.
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.