Page 285 - ARM Based Microcontroller Projects Using MBED

9.5 PROJECT 4—SIMPLE STEPPER MOTOR CONTROL 271

FIG. 9.15 Program PDL.

9.4.7 Suggestions for Additional Work

Modify this project by connecting a potentiometer to one of the analog input ports of the
development board. Then, write a program to turn the servo motor shaft as the potentiometer
arm is rotated left and right.

9.5 PROJECT 4—SIMPLE STEPPER MOTOR CONTROL

9.5.1 Description

In this project a small stepper motor is connected to the Nucleo-F411RE development
board through a driver module. The motor shaft is rotated as follows:
• three complete revolutions in one direction
• stop for 3s
• three complete revolutions in the reverse direction