用STM32实现无接触智能垃圾桶，自动开盖并实时显示垃圾量。
STM32-Based Smart Waste Bin for Hygienic Disposal Using Embedded Sensing and Automated Control
- 基于STM32与超声波传感器实现人体感应与自动开盖。
- 响应快、识别稳定，内部垃圾量可实时监测。
- 适合医院、学校等对卫生要求高的场所使用。
随着公共场所和私人环境中对卫生与无接触解决方案需求的增加，自动化系统在日常应用中的开发愈发重要。本文提出一种基于STM32微控制器、超声波传感器与伺服电机的运动感应自动垃圾桶。系统通过超声波检测人体接近，由微控制器控制伺服电机自动开启桶盖；另设一个超声波传感器用于监测桶内垃圾水平，OLED显示屏实时反馈系统状态。所提方案具有低成本、高可靠性与易部署性，适用于家庭、教育机构、医院及公共设施。实验表明，系统响应迅速、传感稳定、机械运行平滑，能有效提升卫生水平与用户便利性。
原文摘要 · Abstract (English)
The increasing demand for hygienic and contactless solutions in public and private environments has encouraged the development of automated systems for everyday applications. This paper presents the design and implementation of a motion- sensing automatic waste bin using an STM32 microcontroller, ultrasonic sensors, and a servo motor. The system detects user presence through ultrasonic sensing and automatically opens the bin lid using a servo motor controlled by the microcontroller. An additional ultrasonic sensor is used to monitor the internal waste level of the bin, while an OLED display provides real- time feedback regarding system status. The proposed system offers a low-cost, reliable, and easily deployable solution for touch-free waste disposal. Experimental evaluation demonstrates fast response time, stable sensing performance, and smooth mechanical operation. The system can be effectively deployed in homes, educational institutions, hospitals, and public facilities to improve hygiene and user convenience.
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