摘要
研究了利用AM2303模块进行温、湿度监控的设计思想和实现方法,重点研究了数据采集和TFT-LCD显示的软硬件结构及微控制器和单总线通信协议。设计了以AM2303温、湿度数据采集模块和STM32F103VBT6处理器为核心的温、湿度数据采集显示及报警的监测系统。采集数据及报警信息通过LCD实时显示;通过调整脉宽调制的占空比,控制加热电路继电器的通断时间,实现温度的闭环控制。该系统具有操作简单、成本低、易扩展等优点。
The paper studies the design and implementation of temperature and humidity monitoring based on AM2303 module, tbcusing on hardware and software structure and micro-controller and single-bus communication protocol of data acquisition and TFT-LCD display. AM2303 temperature and humidity data acquisition module and STM32F103VBT6 processor as the core when de- signed the system which is provided with the temperature and humidity data acquisition, display, alarm function. Collect data and alarm information display through the LCD in real time; adjust the pulse width modulation duty cycle to control the heating circuit relay off time to achieve the closed-loop control of temperature. The system is simple, low cost, and easy to expand.
出处
《微型机与应用》
2012年第16期28-31,共4页
Microcomputer & Its Applications
基金
河南省重点科技攻关计划项目(072102260008)
