Arduino controlled sewing machine

Will need some simple code to control an XY table to do the following: Stop when limit switches are engaged Move a needle to the set height using a hall sensor Move to produce a hard coded pattern (a box with an X inside of it) Activate a digital potentiometer in order to initiate the movement of the sewing machine Activate various relays in certain sequences Output simple information on a LCD shield I will need this all done concurrently. No hardware interfacing work is required to the machine as I have already completed this. I just need the code. This is not a complex project but does require good command of English as I need to explain what is required.