5. Calculate the number of steps per revolution for a step angle of 7.5 degrees. 6. Finish the normal four-step sequence clockwise if the first step is 0011 (binary) 7. How can we make a stepper motor go faster? 8. A switch is connected to pin RA2, Write a program to monitor the status of SW and perform the following: (a) If SW=0, the stepper motor moves clockwise. (b) If SW=1, the stepper motor moves counterclockwise. Unipolar 10 ULN2803 Stepper Motor +12 +12 470 470 4705470 ILQ74 PIC18F Opto RBO 15 1k RB1 1k RB2 RB3 The optoisolator provides additional protection of the 8051. 税 www 13 12 ww D 1k 10 + 1k Use one power supply for the motor and ULN2003 and another forthe 8051. +12