读取DS18B20温度,通过LCD1602显示出来,并输出控制汇总 下载本文

内容发布更新时间 : 2024/12/26 9:54:28星期一 下面是文章的全部内容请认真阅读。

if(tl < 0)

{

LcdWriteCom(0x90); LcdWriteData('-'); rr=-tl;

} else {

LcdWriteCom(0x90); LcdWriteData('+'); }

datas2[0] = rr / 100; datas2[1] = rr% 100 / 10; datas2[2] = rr % 10; LcdWriteCom(0x8e); LcdWriteData('L'); LcdWriteCom(0x8f); LcdWriteData(':'); LcdWriteCom(0x91);

rr=tl;

LcdWriteData('0'+datas2[0]); LcdWriteCom(0x92);

LcdWriteData('0'+datas2[1]); LcdWriteCom(0x93);

LcdWriteData('0'+datas2[2]); if(mm>=(th*10)||mm<=(tl*10)||th<=tl)

beep=0;

else

beep=1;

LcdWriteCom(0x80);

LcdWriteData('T'); LcdWriteCom(0x81); LcdWriteData('A'); LcdWriteCom(0x82); LcdWriteData('I'); LcdWriteData(' '); LcdWriteCom(0x84); LcdWriteData('A'); LcdWriteCom(0x85); LcdWriteData('N'); LcdWriteCom(0xc1);

LcdWriteData('0'+datas[0]); LcdWriteCom(0xc2);

LcdWriteData('0'+datas[1]);

}

LcdWriteCom(0xc3);

LcdWriteData('0'+datas[2]); LcdWriteCom(0xc4); LcdWriteData('.');

LcdWriteCom(0xc5);

LcdWriteData('0'+datas[3]); LcdWriteCom(0xc6); LcdWriteData('\

2.lcd.h

#ifndef __LCD_H_ #define __LCD_H_

/********************************** 当使用的是4位数据传输的时候定义, 使用8位取消这个定义

**********************************/ #define LCD1602_4PINS

/********************************** 包含头文件

**********************************/ #include

//---重定义关键词---// #ifndef uchar

#define uchar unsigned char #endif

#ifndef uint

#define uint unsigned int #endif

/********************************** PIN口定义

**********************************/ #define LCD1602_DATAPINS P0 sbit LCD1602_E=P2^7; sbit LCD1602_RW=P2^5; sbit LCD1602_RS=P2^6;

/********************************** 函数声明

**********************************/ /*在51单片机12MHZ时钟下的延时函数*/ void Lcd1602_Delay1ms(uint c); //误差 0us /*LCD1602写入8位命令子函数*/ void LcdWriteCom(uchar com); /*LCD1602写入8位数据子函数*/ void LcdWriteData(uchar dat) ; /*LCD1602初始化子程序*/ void LcdInit(); #endif 3.temp.h

#ifndef __TEMP_H_ #define __TEMP_H_

#include

sbit DSPORT=P3^7;

void Delay1ms(unsigned int );