DS18B20数字温度计使用,有引脚图和程序.有一定参考意义.-DS18B20 digital thermometer use, pin plans and procedures. Have practical significance.

DS18B20温度计 采用4位LED共阳显示器显示测温值，显示精度0.1度，测温范围-55度至+125度 * 用AT89C2051单片机，12MHZ晶振，设计日期2004.02.27-DS18B20 thermometer used a total of four LED displays show the temperature value of Shenyang, showing the accuracy of 0.1 d