基于C8051F020的温度传感器系统设计与实现

摘要

本文重点是研究C8051F020单片机系统。用24伏电源、可变铂电阻、二线制PT100型变送器、250欧姆精密绕线电阻、C8051F020单片机开发板组成电路,实现用C8051F020单片机开发板数码管显示当前环境温度,完成温度传感器的功能。单片机数码管可显示4位温度值,其中小数点后1位。%This article focuses on research of C8051F020 singlechip microcomputer(SCM) system.24 volt power,variable platinum resistor,two-wire system PT100 type transmitter,250 ohms precision winding resistance,C8051F020 SCM consist of development board circuit.C8051F020 SCM development board with digital tube displays the current environmental temperature,complete the temperature sensor function.digital tubes of the single-chip microcomputer display three digits and one decimal temperature.