I am working on a project that can remote control a robotic car through wifi and using Arduino Uno. I got a problem which is the motor shield uses the same pin as wifi shield (pin 12, 7). How to modify the library such that the conflict can be free? I changed the pin # for pin 7, 12 in wifi shield but failed. One more thing, since most of the pins have been used by wifi shield and motor shield, if I plugin CMUcam4, can it works properly or I need to do modification again? Or I need to use other Aruduino board?
Here is the header file for motor shield: https://github.com/kachok/arduino-libraries/tree/master/Adafruit_MotorShield