Design and development of the position control of a motorized axis with Arduino

This thesis is mainly about researching a motorized axis's position control based on Arduino, including both hardware and software. This thesis aims to design a control system, which could make a slider precisely at the position following the user's order. This thesis proposes a hardware design and then a software design to achieve this task. Compared to the traditional method, the Single-Chip Microcomputer, the method in this thesis is more straightforward, thanks to the Arduino board and its open-source software. The motor employed is a 24V DC motor. Thus, the circuit design is also included in this thesis. The first function of the circuit is the motor rotation direction control, which is accomplished by H-bridge. The second function is motor rotation speed control, which is performed by the PWM method. Moreover, this thesis also improves the control preciseness by the PID method. It's also interesting to see how the PID parameters affect the system.