基于GSM和STC89C52单片机的温湿度监测系统设计
关键词：GSM模块；温湿度；远程控制；单片机。
Temperature and humidity monitoring system based on GSM and microcontroller
Abstract: As the rapid development of the information age, the gradual improvement of the global village, the phone gradually become manpower necessary information gathering and publishing tools, and with the rapid development of the mobile phone industry, people can be fixed by mobile devices, accurate positioning, and remote equipment for monitoring and control requirements are increasing, and the system is also based on the GSM mobile communication system and SCM STC89C52, via SMS to a fixed temperature and humidity equipment and in the distance a person to connect people and equipment in order to achieve long-distance communication, improve the efficiency and management costs, people and equipment no distance communication.
Keywords: GSM module; temperature and humidity; remote control; the microcontroller.
目录摘要 i
Abstract i
Temperature and humidity monitoring system based on GSM and microcontroller i
目录 ii
绪论 1
1 方案设计及介绍 2
1.1 系统的主要功能 2
1.2 设计原理及系统硬件主要组成的功能及特点 2
1.3 系统的组成 3
1.4 优点 3
1.5 推广应用及进一步研究的前景： 3
2 主要硬件部分介绍 5
2.1 温湿度采集部分 5
2.1.1 DHT11温湿度传感器 5
2.1.2 温湿度采集电路 5
2.2 单片机控制部分： 6
2.2.1 CPU单片机部分 STC89C52的介绍 6
2.3 TC35I模块组成 8
2.3.1 GSM收发模块TC35i 8
2.4 LCD1602液晶显示屏 9
2.4.1 LCD1602简介 9
2.4.2 主要技术参数 9
2.4.3 接口信号说明 9
2.4.4 1602LCD基本操作时序 10
2.4.5 指令集 10
2.4.6 初始化步骤 12
2.5 SIM卡 12
2.5.1 SIM卡的原理 12
2.5.2 软件特性 13
2.5.3 主要功能 13
2.6 串口通信与GSM模块 14
2.6.1 串口通信 14
2.6.2 GSM 模块 14
2.6.3 串口控制GSM模块 14
2.7 下载部分 15
2.8 电源 16
3 传输模块GSM模块的程序设计 17
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