I am inquiring about the Adafruit Motor/Stepper/Servo Shield for Arduino kit. I was wondering if the Adafruit shield had to be directly mounted to the Arduino and if so which Arduino is it intended to be used with. Is it the Arduino Uno R3? Lastly, does the shield use up all of the inputs. For my project I need to control 3 sets of motors and acquire data via the analog pins and will need to use the 5V power output from the Arduino. I was wondering if the shield permitted use/ access to these slots or not. It was hard to see from the pictures and was not stated in the spec sheet. Thank you for the time and I await your reply.