I am currently working on a hexapod project and have 18 servo motors for the legs. I am interested in buying the [Pololu Maestro Servo Controller] and was wondering if it was possible to link it to an arduino mega and then control the shield using joystick input that is also connected to the arduino?
You can use the Maestro’s TTL serial interface to communicate with it from an Arduino. Using our Maestro Servo Controller library for Arduino can make the Arduino programming easier. The Maestro Servo Controller library documentation has information about all of the available commands. I would also suggest reading through the Maestro Servo Controller User’s Guide if you haven’t done so already.