摘要
随着智能家居的快速发展，灯光系统的智能化控制对提升生活便捷性、节约能源具有重要意义。传统的灯光控制方式依赖手动开关，存在操作繁琐、无法根据环境自动调节等问题，难以满足个性化、智能化的生活需求。
基于 STM32F103C8T6 单片机的语音识别灯光控制系统，整合了人体热释电 D203S 传感器、光照检测模块、语音识别模块、按键、OLED 显示屏、ESP8266 WiFi 模块及 LED 灯等，实现了灯光的自动化控制与智能调节。系统核心功能包括：通过 D203S 检测是否有人，有人且光照较低时自动开灯，人离开后 30 秒自动关灯；借助光照检测模块采集环境光照强度，有人时根据光照自动调节灯光亮度；支持通过按键设置光照阈值、手动调节灯光亮度；通过语音指令控制灯光开关及亮度调节；利用 OLED 显示屏实时显示亮度等级、工作模式及是否有人；通过 WiFi 模块将数据传输至手机端，实现远程监测与灯光控制（开关及亮度调节）。
该系统的实现，有效提升了灯光控制的自动化与智能化水平，减少了人工操作，实现了按需照明，为智能家居生活提供了高效、便捷的解决方案，同时为同类智能控制设备的研发提供了参考，具有较高的实际应用价值。
关键词：STM32F103C8T6；语音识别；灯光控制；传感器；智能调节；WiFi 通信
ABSTRACT
With the rapid development of smart homes, intelligent control of lighting systems is of great significance for improving life convenience and saving energy. Traditional lighting control methods rely on manual switches, which are cumbersome to operate and cannot be automatically adjusted according to the environment, making it difficult to meet personalized and intelligent living needs.
The voice recognition lighting control system based on the STM32F103C8T6 microcontroller integrates a human pyroelectric D203S sensor, a light detection module, a voice recognition module, buttons, an OLED display, an ESP8266 WiFi module, and an LED light, realizing automatic control and intelligent adjustment of lighting. The core functions of the system include: detecting whether there is a person through D203S, automatically turning on the light when there is a person and the light is low, and automatically turning off the light 30 seconds after the person leaves; collecting the ambient light intensity with the light detection module, and automatically adjusting the brightness of the desk lamp according to the light intensity when there is a person; supporting setting the light threshold and manually adjusting the light brightness through buttons; controlling the lighting switch and adjusting brightness through voice commands; displaying the brightness level, mode, and whether there is a person in real-time through the OLED display; transmitting the detected data to the user's mobile phone through the WiFi module, and realizing remote control of the lighting switch through the mobile phone.
The implementation of this system effectively improves the automation and intelligence level of lighting control, reduces manual operation, realizes on-demand lighting, provides an efficient and convenient solution for smart home life, and also offers a reference for the research and development of similar intelligent control equipment, with high practical application value.
Keywords:STM32F103C8T6; Voice recognition; Lighting control; Sensor; Intelligent adjustment; WiFi communication
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 人体热释电传感器选择
2.1.3 光照检测模块选择
2.1.4 语音识别模块选择
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
2.2整体设计方案
第 3 章 硬件设计
3.1 主控电路模块
3.2 人体热释电传感器电路
3.3 光照检测模块电路
3.4 语音识别模块电路
3.5 LED 灯驱动电路
3.6 按键模块电路
3.7 显示模块电路
3.8 WiFi 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 WiFi模块子流程设计
4.6 ADC模数转换子流程设计
4.7 人体热释电感应模块子流程设计
4.8 语音识别模块子流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 人体热释电传感器功能测试
5.3 光照检测模块功能测试
5.4 语音识别模块功能测试
5.5 执行设备（LED 灯）功能测试
5.6 按键与显示功能测试
5.7 WiFi 模块功能测试
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
