hello i am a student finding difficuites in the above titled project. here in this project i have to use a photo diodes as light sensors which would be connected to a PIC16F876. now further i have to use two stepper motors for dual axis movement. the stepper motor driver used is L6219. i need help about interfacing the pic, driver and the stepper motor. PLEASE COULD ANYBODY help me about the schematic diagram of the process.