设计说明书
总字数：18000+
摘要
随着智能家居技术的不断发展，家居环境的智能化管理对提升生活舒适度、实现节能减排具有重要意义。传统的家居设备控制多依赖手动操作，存在响应不及时、调控精度低等问题，难以满足人们对便捷化、个性化生活的需求。
基于 STM32F103C8T6 单片机的基于 WiFi 通信的智能家居系统，整合了 DHT11 温湿度传感器、MQ-135 空气质量传感器、光照检测模块、按键、OLED 显示屏、WiFi 模块（ESP8266）及执行设备（风扇、窗帘驱动装置、声光报警模块），实现了家居环境的自动化监测与远程智能控制。系统核心功能包括：通过 DHT11 实时监测环境温湿度，当温度或湿度超过预设最大值时，自动开启风扇降温除湿；通过 MQ-135 检测空气质量，当数值超过最大值时，启动风扇通风并触发声光报警；借助光照检测模块监测光照强度，当强度低于预设最小值时自动控制窗帘关闭，反之则打开；支持通过按键设置温湿度、空气质量最大值及光照最小值，还可手动控制风扇和窗帘的开关状态；通过 OLED 显示屏实时显示各项监测数据及设备运行状态；利用 WiFi 模块将数据传输至手机端，实现远程查看环境参数、设置各项阈值及控制风扇和窗帘开关。
该系统的实现，有效提升了家居环境管理的智能化与便捷性，减少了人工操作成本，为用户营造了舒适、安全的居住环境，同时为同类智能家居设备的研发提供了参考，具有较高的实用价值和推广前景。
关键词：STM32F103C8T6；智能家居；WiFi 通信；传感器；自动控制；远程监测
ABSTRACT
With the continuous development of smart home technology, intelligent management of the home environment is of great significance for improving living comfort and achieving energy conservation and emission reduction. Traditional home device control mostly relies on manual operation, which has problems such as delayed response and low regulation accuracy, making it difficult to meet people’s needs for a convenient and personalized life.
The smart home system based on WiFi communication, which is built around the STM32F103C8T6 microcontroller, integrates a DHT11 temperature and humidity sensor, an MQ-135 air quality sensor, a light detection module, buttons, an OLED display, a WiFi module (ESP8266), and executive devices (fan, curtain drive device, sound and light alarm module). It realizes automatic monitoring and remote intelligent control of the home environment. The core functions of the system include: real-time monitoring of ambient temperature and humidity through the DHT11; when the temperature or humidity exceeds the preset maximum value, the fan is automatically turned on for cooling and dehumidification; detecting air quality through the MQ-135; when the value exceeds the maximum value, the fan is activated for ventilation and the sound and light alarm is triggered; monitoring light intensity with the light detection module; when the intensity is lower than the preset minimum value, the curtains are automatically closed, and vice versa; supporting the setting of maximum values for temperature, humidity, and air quality, as well as the minimum value for light through buttons, and manual control of the on/off status of the fan and curtains; real-time display of various monitoring data and equipment operating status through the OLED display; transmitting data to the mobile phone via the WiFi module, enabling remote viewing of environmental parameters, setting various thresholds, and controlling the on/off of the fan and curtains.
The implementation of this system effectively improves the intelligence and convenience of home environment management, reduces manual operation costs, creates a comfortable and safe living environment for users, and provides a reference for the research and development of similar smart home devices, with high practical application value and promotion prospects.
Keywords:STM32F103C8T6; smart home; WiFi communication; sensor; automatic control; remote monitoring
目录
第1章 绪论
1.1 研究的目的及意义
1.2 国内外发展情况
1.3 本文主要研究内容
第2章 设计思路与方案论证
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 温湿度传感器选择
2.1.3 空气质量传感器选择
2.1.4 光照检测模块选择
2.1.5 WiFi 模块选择
2.1.6 显示模块选择
2.1.7 按键模块选择
2.1.8 执行设备驱动模块选择
2.1.9 声光报警模块选择
2.2整体设计方案
第 3 章 硬件电路设计
3.1 主控电路模块
3.2 温湿度传感器电路
3.3 空气质量传感器电路
3.4 光照检测模块电路
3.5 显示模块电路
3.6 WiFi 模块电路
3.7 按键模块电路
3.8 执行设备驱动电路
3.9 声光报警模块电路
第4章 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 温湿度检测模块子流程
4.6 步进电机子流程设计
4.7 WiFi模块子流程设计
4.8 ADC模数转换子流程设计
第 5 章 实物测试与功能验证
5.1 整体实物测试
5.2 温湿度传感器功能测试
5.3 空气质量传感器功能测试
5.4 光照检测模块功能测试
5.5 WiFi 模块功能测试
5.6 执行设备功能测试
5.7 声光报警模块功能测试
5.8 按键设置与显示功能测试
第6章 总结与展望
6.1 总结
6.2 展望
致谢
参考文献
附录
附录一：原理图
附录二：PCB
附录三：主程序
购买后可查看具体内容！