DS18B20温度计-c程序-lcd1602显示(共5页).doc

精选优质文档-倾情为你奉上2007-12-14 19:05温度值精确到0.1度，lcd1602显示仿真电路图如下c程序如下：#include#define uchar unsigned char#define uint unsigned intsbit DQ=P37;/ds18b20与单片机连接口sbit RS=P30;sbit RW=P31;sbit EN=P32;unsigned char code str1=temperature: ;unsigned char code str2= ;uchar data disdata5;uint tvalue;/温度值uchar tflag;/温度正负标志/*lcd1602程序*/void delay1ms(unsigned int ms)/延时1毫秒（不够精确的）unsigned in