设计说明书
总字数：19000+
摘要
随着养宠人群增多，宠物喂养的科学性与便捷性成为养宠者关注的重点。现代生活节奏快，养宠者常因工作、外出等原因无法按时投喂，导致宠物饮食不规律；传统手动喂养难以精准控制喂食量，易引发宠物肥胖或营养不良，且缺乏对喂养环境（温度、光照）的监测，无法为宠物提供舒适的进食条件。因此，研发一款能自动、精准、远程可控的智能宠物喂养系统，对保障宠物健康、减轻养宠者负担具有重要意义。
本设计提出一种基于 STM32F103C8T6 单片机的智能宠物喂养系统。系统核心功能包括：通过 RTC 内部时钟获取实时时间，支持按键修正与手动投喂；手机界面可配置 3 组喂食时间、使能状态及喂食重量；到达设定喂食时间时，ULN2003A 芯片驱动步进电机出食，HX711 重量检测模块实时监测食物重量，达到设定值后停止出食，同时蜂鸣器报警提醒宠物；5516 光照检测模块监测光照，喂食时光照较低则通过继电器驱动补光灯，1 分钟后自动停止；DS18B20 模块检测环境温度；OLED 显示屏实时显示时间、温度、光照、喂食重量等数据；ESP8266-12F WiFi 模块将监测数据传输至手机端，用户也可通过手机远程设置喂食参数。
该智能宠物喂养系统为养宠者提供了便捷、精准的喂养解决方案。自动投喂与远程控制功能解决了养宠者无法按时喂养的问题，精准重量控制保障宠物饮食健康，温度与光照监测及补光功能优化进食环境，有效提升宠物喂养的科学性与便利性，减轻养宠压力，保障宠物健康成长。
关键词：智能宠物喂养；STM32F103C8T6；ESP8266-12F；自动投喂；远程控制
Abstract
With the increasing number of pet owners, the scientific and convenient nature of pet feeding has become a key concern for pet owners. The pace of modern life is fast, and pet owners often cannot feed their pets on time due to work, outdoor activities, and other reasons, resulting in irregular eating habits; Traditional manual feeding is difficult to accurately control the feeding amount, which can easily lead to pet obesity or malnutrition, and lacks monitoring of the feeding environment (temperature, light), making it difficult to provide comfortable feeding conditions for pets. Therefore, developing an intelligent pet feeding system that can be automated, precise, and remotely controlled is of great significance for ensuring pet health and reducing the burden on pet owners.
This design proposes an intelligent pet feeding system based on STM32F103C8T6 microcontroller. The core functions of the system include: obtaining real-time time through RTC internal clock, supporting button correction and manual feeding; The mobile interface can be configured with 3 sets of feeding time, enable status, and feeding weight; When the set feeding time is reached, the ULN2003A chip drives the stepper motor to dispense food, and the HX711 weight detection module monitors the weight of the food in real time. When the set value is reached, the feeding stops, and the buzzer alarms to remind the pet; The 5516 lighting detection module monitors the lighting. If the lighting is low during feeding, the relay drives the fill light, which automatically stops after 1 minute; DS18B20 module detects ambient temperature; OLED display screen displays real-time data such as time, temperature, lighting, feeding weight, etc; The ESP8266-12F WiFi module transmits monitoring data to the mobile phone, and users can also remotely set feeding parameters through their mobile phone.
This intelligent pet feeding system provides pet owners with convenient and precise feeding solutions. The automatic feeding and remote control functions solve the problem of pet owners being unable to feed on time. Precise weight control ensures the healthy diet of pets, while temperature and light monitoring and replenishment functions optimize the feeding environment, effectively improving the scientificity and convenience of pet feeding, reducing pet pressure, and ensuring the healthy growth of pets.
Keywords： intelligent pet feeding; STM32F103C8T6； ESP8266-12F； Automatic feeding; remote control
目 录
1 绪论
1.1 研究背景及意义
1.2 国内外研究现状
1.3 主要内容
2 系统总体方案设计
2.1系统总体设计
2.2 主要模块方案选择
3 系统硬件设计
3.1 总体硬件框架
3.2 主控模块电路设计
3.3 温度检测模块电路设计
3.4 重量检测模块电路设计
3.5 出食驱动模块电路设计
3.6 光照检测与补光模块电路设计
3.7 显示模块电路设计
3.8 按键模块电路设计
3.9 蜂鸣器报警模块电路设计
3.10 WiFi 通信模块电路设计
4 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.4 温度检测模块子流程
4.5 称重模块HX711模块子流程
4.6 步进电机子流程
4.7 OLED显示流程设计
4.8 WiFi模块子流程设计
5 实物制作与功能测试
5.1 实物制作
5.2 时间校准与手动投喂功能测试
5.3 定时投喂与重量控制功能测试
5.4 温度、光照监测与补光功能测试
5.5 WiFi 远程控制与数据传输功能测试
6 总结
参考文献
致谢
附录A 原理图
附录B PCB
附录C 主程序