设计说明书
总字数：17000+
摘要
在现代生活中，宠物已成为家庭重要成员，但主人因工作繁忙等原因常无法按时喂食，可能导致宠物饮食不规律影响健康。传统宠物喂食器多为手动操作或固定时间喂食，缺乏灵活性与精准控制，难以满足个性化喂养需求。因此，研发一种具备定时精准喂食、重量可控、远程管理及状态提醒功能的智能喂食设备十分必要。
本设计提出了一种基于 STM32F103C8T6 单片机的智能宠物喂食器。系统主要功能包括：通过 DS1302 时钟模块获取实时时间，支持按键手动修正时间；手机界面可配置最多 5 组喂食计划，包括喂食时间、使能状态及喂食重量；当到达设定喂食时间，单片机驱动 SG90 舵机运转出食物，通过 HX711 重量检测模块实时监测出粮重量，达到设定值后停止出粮，同时触发 CN-TTS 语音模块播报提醒宠物进食；OLED 显示屏实时显示当前时间、喂食计划及食物重量等数据；通过 ESP8266-WIFI 模块实现数据上传，手机端可远程查看设备状态、设置喂食参数。
该智能宠物喂食器的作用在于，实现了宠物喂养的自动化与精准化。通过定时定量喂食保障宠物饮食规律，远程管理功能解决主人外出时的喂食难题，语音提醒与状态显示提升了使用便捷性，为宠物健康成长提供可靠保障，同时减轻主人喂养压力。
关键词：单片机；智能宠物喂食器；定时喂食；重量检测；远程管理
Intelligent pet feeder based on microcontroller
Abstract
In modern life, pets have become important members of the family, but owners often cannot feed their pets on time due to busy work and other reasons, which may lead to irregular diet and affect their health. Traditional pet feeders are mostly manually operated or fed at fixed times, lacking flexibility and precise control, making it difficult to meet personalized feeding needs. Therefore, it is necessary to develop an intelligent feeding device with timed and precise feeding, controllable weight, remote management, and status reminder functions.
This design proposes an intelligent pet feeder based on STM32F103C8T6 microcontroller. The main functions of the system include: obtaining real-time time through the DS1302 clock module, supporting manual time correction by pressing buttons; The mobile interface can be configured with up to 5 feeding plans, including feeding time, enable status, and feeding weight; When the set feeding time is reached, the microcontroller drives the SG90 servo to rotate out the 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 CN-TTS voice module is triggered to remind the pet to eat; The OLED display screen displays real-time data such as the current time, feeding plan, and food weight; Through the ESP8266-WIFI module, data upload can be achieved, and the mobile end can remotely view device status and set feeding parameters.
The function of this intelligent pet feeder is to achieve automation and precision in pet feeding. By providing timed and quantitative feeding to ensure the regular diet of pets, remote management functions solve the feeding difficulties of owners when they go out. Voice reminders and status displays improve the convenience of use, providing reliable guarantees for the healthy growth of pets and reducing the pressure of feeding for owners.
Keywords：microcontroller; Intelligent pet feeder; Timed feeding; Weight testing; remote management
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 时钟模块电路设计
3.4 重量检测模块电路设计
3.5 执行模块电路设计
3.6 语音播报模块电路设计
3.7 显示模块电路设计
3.8 按键模块电路设计
3.9 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 OLED显示流程设计
4.5 WiFi模块子流程设计
4.6 称重模块子流程设计
5 实物制作与功能测试
5.1 实物制作
5.2 时钟与时间修正功能测试
5.3 喂食计划与定量出粮功能测试
5.4 语音播报与状态显示功能测试
5.5 WIFI 通信与远程控制功能测试
5.6 按键交互与参数设置功能测试
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
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