基于AT89S51单片机的温度采集控制系统

Temperature Collecting and Controlling System Based on AT89S51

以AT89S51单片机为核心控制元件,介绍了与DS18B20组成温度采集系统的设计方案,利用单片机空余I/O口模拟PWM脉冲波对直流电机进行调速和温度显示。给出了主要控制模块的硬件电路图和部分程序代码,具有一定的实际参考价值。

This paper takes the single chip microcomputer of AT89S51 as the central controller, and introduces the project about how to build the temperature - collecting system. We make use of the remanent I/O to simulate the PWM pulse to control the rotate speed of direct current motor and to display the temperature. This paper offers the reader the circuit diagram of the main module and parts of the codes.