步进电机控制与转速检测系统设计：硬件、软件、控制原理综述【自动化毕业论文】

This undergraduate thesis "Stepper Motor Control and Speed Detection System Design" mainly focuses on the implementation method of stepper motor control and speed detection system through a microcontroller. The thesis is divided into three main parts: principle introduction, hardware design, and software design. The hardware circuit includes the design of the control system of the stepper motor driven by L298N, keyboard button circuit design, display circuit design, speed detection circuit design, power module design, and more. The software consists of system initialization and main program module design, display program and keyboard program module design, interrupt handling, timer processing program module design, etc. The control module starts, rotates, reverses, accelerates, decelerates, stops, and other signals through keyboard input, which are then processed by the microcontroller and sent to the L298N driver to achieve the related functions. The operating status of the motor is converted into pulse signals through the optical encoder, amplified, input to the microcontroller, processed by the microcontroller, and displayed on the LED display for speed and status information. The design process of this thesis follows a systematic approach of principle introduction, hardware design, and software design for a logical and comprehensive argumentation and selection of the design choices.Keywords: stepper motor, microcontroller, control system, hardware, software.