基于单片机的自动抽纸系统设计及实践研究

The undergraduate thesis titled "Design of an Automatic Paper Drawing System Based on Single-Chip Microcontroller" describes the development of a toilet paper drawing system using STC89C52 single-chip microcontroller. This system is composed of a microcontroller, infrared sensor, laser sensor, stepper motor, and various control modules. The microcontroller and stepper motor work together to automatically dispense a certain length of paper for user convenience. The microcontroller processes the collected data and communicates with the control modules. Infrared sensors detect the presence of individuals within the system's range by measuring the energy of infrared radiation. When someone needs to use the system, they can press a button to initiate the paper drawing process. The system also includes indicator lights for user feedback. Through practical experimentation, the research team successfully developed the automatic paper drawing system and provided photographic evidence of the working prototype. The system was found to be simple in terms of materials and feasible in terms of methodology and materials used. Key words: communication; infrared; stepper motor; STC89C52.