How can you get reading for a potentiometer from an Adafruit Motor shield v2? I want to control some DC motors and use potentiometers for a closed loop feedback system but I don't know where I should attach the potentiometers to the motor shield. This is my first time using the motor shield v2. I will be soldering my motor shield on top of my Arduino board and I can't attach jumper wires because the pin headers are too short. So where would I attach the potentiometer? Also, what is the maximum number of potentiometers I can attach? Help would be much appreciated and if you could include a picture that would be great!