本文介绍了基于AT89C52 单片机的自动水温控制系统的设计及实现过程。
该系统具有实时显示、温度测量、温度设定并能根据设定值对环境温度进行调节
实现控温的目的以及达到上下限温度报警功能，控制算法是基于数字PID 算法。
关键词 ：PID AT89C52 脉宽调制 实时
Abstract ： This article describes AT89C52 single-chip microcomputer-based
automatic water temperature control system design and implementation process. The
system has real-time display, temperature measurement, temperature settings and the
environment in accordance with the temperature settings adjusted to achieve the
purpose of temperature control and reach the upper and lower limits of temperature
alarm function, the control algorithm is based on the digital PID algorithm.
Keyword: PID AT89C52 PWM real time
