I've connected SD card module to Arduino UNO. I want to use PIN 10 for PWM DC motor control and because of that, I've connected CS pin directly to another pin (A3).
SD card is working properly, but after calling SD.begin(A3), it set PIN 10 to HIGH! Immediately after SD.begin(A3) and set that pin to LOW, but meanwhile the motor took a small rotation.
I've digged into SD.cpp and Sd2Card.cpp, but couldn't find where this problem occured!
Any help appreciated....