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超声波LCD显示测距程序

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超声波测距C语言源程序代码

超声波测距C语言源程序代码

/*{HZ即单位s的倒数}本晶振为12MHZ,因此外部的时钟频率为12MHZ,所以部的时钟频率为(12MHZ)/12=1MH即1000000HZ,而机械频率为1/(1MHZ),即每完成一次计算(即定时器的值加一)用时0.000001s,即1us(微秒).*//***********************************************************************************///具有模式选择.*include<reg52.h>*define UC unsigned char*define UI unsigned intvoid delay(UI); //延时9.56us程序sbit beep = P1^3; //用于声音报警sbit Lv = P1^7; //用于光报警sbit Hong = P1^6;sbit QD = P3^7;//K8 //P3^7口(K8)为确定键,sbit G* = P3^1;//K7 //P3^3口(K2)为修改键,sbit S* = P3^6;//K6 //P3^2(K3)为测量键.sbit B* = P3^0;//K5 //个(K7),十(K6),百(K5),三位修改键sbit a = P1^2;//百位//数码管位选sbit b = P1^1;//十位sbit c = P1^0;//个位sbit trig = P1^4; //方波发射端sbit echo = P1^5; //超声波接收端void IntConfiguration(); //用来"设置中断"的函数,P3^3口(K2)为修改键,P3^2(K3)为测量键.void TimeConfiguration(); //用来"设置定时器"的函数sbit K1 = P3^4;//动态sbit K4 = P3^5;//静态//用于进展模式切换(K1、K4键)void *ia*ian(); //修改函数,用来修改下限void shang*ian(); //修改函数,用来修改上限UI min[3]={0,5,0}; //报警极限,拆分为"百十个"三位UI ma*[3]={3,0,0}; //MIN,MA* 用来存储最大和最小值void MIN*ianshi(UI); //最小围和最大围的显示void MA**ianshi(UI);UC code CharacterCode[10] = {0*3f,0*06,0*5b,0*4f,0*66,0*6d,0*7d,0*07,0*7f,0*6f};//数码管数字字符(P2口)/********************************主函数*********************************************/ void main(){TimeConfiguration(); //设置定时器0IntConfiguration(); //设置中断允许,K4键为修改键,K8键为确定键while(1){MIN*ianshi(40); //1.50169000sMA**ianshi(40); //1.50098300s}}/*******************************超声波测距函数********************************************/void zhongduan_0() interrupt 0 //测量中断函数(外部中断0){UI moshi = 0;UI juli = 0;UI time = 0;UI MA*, MIN;UI TT = 0;//用于第一次测量时给P1^5口置一,以便正确读取数值UI t1, t2, t3;UI GE = 0, SHI = 0, BAI = 0; //先定义三个变量,用来显示测量的距离.a = 0;b = 0;c = 0;P2 =~ 0*00; //防止最后显示的那个数码管一直亮MA* = ma*[0]*100 + ma*[1]*10 + ma*[2]; //计算最大与最小值MIN = min[0]*100 + min[1]*10 + min[2];while(1)//下面进展测量{while(1) /*先进展模式判断*/{if(0 == K1){moshi = 1;break; //模式1为动态测量}if(0 == K4){moshi = 2;break; //模式2为静态测量}if(0 == QD)return; //完毕测量函数}/********************************************计算距离************************************************/loop: beep = 1;//关掉定时器Lv = 1;Hong = 1;//关掉灯a = 0;b = 0;c = 0;P2 =~ 0*00;//防止最后显示的那个数码管一直亮if( (0 == QD)&&(1 == moshi) )break;if( (0 == QD)&&(2 == moshi) ){delay(55500);if(0 == QD){delay(55500);if(0 == QD)break;}}t1 = 35,t2 = 35;t3 = 35;trig = 0;echo = 0;delay(2); //初始化拉低两个端口trig = 1;delay(2);trig = 0; //输出端输出27us的高电压,并将输出端口拉低while(echo == 0); //判断是否有回波返回,有则开启定时器TR0 = 1; //当有高电平输出时,开启定时器while(echo == 1);TR0 = 0; //当高电平变成低电平时,关闭定时器++TT; //测量值加一,记录测量次数if(1 == TT){delay(55500);TH0 = 0*00;TL0 = 0*00; //定时器的初值,定时器的定时为65536us.goto loop;}time = TL0 + TH0*256; //接下来显示测量的距离TH0 = 0*00;TL0 = 0*00; //定时器的初值,定时器的定时为65536us.juli = ( int )( (time*0.034)/2 );BAI = ( (juli%1000)/100 ); SHI = ( (juli%100)/10 ); GE = ( juli%10 );/******************************************两种模式的距离显示********************************************/if(juli > MA*){Hong = 0;Lv = 1;while( t1-- ){a = 0;b = 1;c = 1;P2 =~ CharacterCode[BAI];delay(400);a = 1;b = 0;c = 1;P2 =~ CharacterCode[SHI];delay(400);a = 1;b = 1;c = 0;P2 =~ CharacterCode[GE];delay(390);beep = 0;if( (1 == moshi)&&(0 == t1) )goto loop;if(moshi == 2){t1 = 2;if(0 == QD)goto loop;}}}else if(juli < MIN){Lv = 0;Hong = 1;while( t2-- ){a = 0;b = 1;c = 1;P2 =~ CharacterCode[BAI];delay(500);a = 1;b = 0;c = 1;P2 =~ CharacterCode[SHI];delay(500);a = 1;b = 1;c = 0;P2 =~ CharacterCode[GE];delay(400);beep = 0;delay(100);beep = 1;if( (1 == moshi)&&(0 == t2) )goto loop;if(2 == moshi){t2 = 2;if(0 == QD)goto loop;}}}else{beep = 1;Lv = 1;Hong = 1;while( t3-- ){a = 0;b = 1;c = 1;P2 =~ CharacterCode[BAI];delay(600);a = 1;b = 0;c = 1;P2 =~ CharacterCode[SHI];delay(600);a = 1;b = 1;c = 0;P2 =~ CharacterCode[GE];delay(600);if( (1 == moshi)&&(0 == t3) )goto loop;if(2 == moshi){t3 = 2;if(0 == QD)goto loop;}}}//显示完毕}}/***********************************************************************************/ void zhongduan_1() interrupt 1 //定时器溢出时的中断,显示测得的距离(定时器中断0){TH0 = 0*00;//定时器的初值,定时器的定时为65536us,TL0 = 0*00;}/***********************************************************************************/ void zhongduan_2() interrupt 2 //修改键(K4)的中断函数(外部中断1){*ia*ian();while(QD==0);shang*ian();}/**********************************************************************************/ void MIN*ianshi(UI TT) //显示最小距离{while(TT--){a = 0;b = 1;c = 1;P2 =~ CharacterCode[min[0]];delay(500);a = 1;b = 0;c = 1;P2 =~ CharacterCode[min[1]];delay(500);a = 1;b = 1;c = 0;P2 =~ CharacterCode[min[2]];delay(500);}P2 =~ 0*00;delay(55500);}void MA**ianshi(UI TT) //显示最大距离{while(TT--){a = 0;b = 1;c = 1;P2 =~ CharacterCode[ma*[0]];delay(500);a = 1;b = 0;c = 1;P2 =~ CharacterCode[ma*[1]];delay(500);a = 1;b = 1;c = 0;P2 =~ CharacterCode[ma*[2]];delay(500);}P2 =~ 0*00;delay(55500);}/***********************************************************************************/ void delay(UI T) //延时程序{while(T--);}/***********************************************************************************/ void IntConfiguration() //设置中断函数{//优先级设置PT2 = 0;PS = 0;PT1 = 0;P*1 = 0;PT0 = 1;P*0 = 0;IT1 = 1; //外部中断0为跳变沿触发E*1 = 1; //P3^3口(K4键)修改键,中断允许开启IT0 = 1; //外部中断1为跳变沿触发E*0 = 1; //P3^2口(K1键)测量键,中断允许开启ET0 = 1; //定时器0的中断允许开启EA = 1;}void TimeConfiguration() //设置定时器,以及定时器的初值{TMOD = 0*01;//设定只使用0号定时器; 模式:定时器; 工作方式:1号工作方式.//下面是定时器的初始值, TR0,TR1是用来开启定时器的TH0 = 0*00;//定时器的初值,定时器的定时为50us.TL0 = 0*00;/*1号定时器不用,所以没有TH1,TL1*/}/***********************************************************************************/ void *ia*ian() //修改下限{while(1){if(B*==0)//百位{P2=~0*00;min[0]++;if(min[0]==10)min[0]=0;delay(60000);}a = 0;b = 1;c = 1;P2 =~ CharacterCode[min[0]];delay(100);if(S*==0)//十位{P2=~0*00;min[1]++;if(min[1]==10)min[1]=0;delay(60000);}a = 1;b = 0;c = 1;P2 =~ CharacterCode[min[1]];delay(100);if(G*==0)//个位{P2=~0*00;min[2]++;if(min[2]==10)min[2]=0;delay(60000);}a = 1;b = 1;c = 0;P2 =~ CharacterCode[min[2]];delay(100);if(QD==0){a = 0;b = 0;c = 0;P2 = 0*ff;break;}}}void shang*ian() //修改上限{while(1){if(B*==0)//百位{P2=~0*00;ma*[0]++;if(ma*[0]==10)ma*[0]=0;delay(60000);}a = 0;b = 1;c = 1;P2 =~ CharacterCode[ma*[0]];delay(100);if(S*==0)//十位{P2=~0*00;ma*[1]++;if(ma*[1]==10)ma*[1]=0;delay(60000);}a = 1;b = 0;c = 1;P2 =~ CharacterCode[ma*[1]];delay(100);if(G*==0)//个位{P2=~0*00;ma*[2]++;if(ma*[2]==10)ma*[2]=0;delay(60000);}a = 1;b = 1;c = 0;P2 =~ CharacterCode[ma*[2]];delay(100);if(QD == 0){a = 0;b = 0;c = 0;P2 = 0*ff;while(QD == 0);break;}}}/************************************************************************************/。

超声波测距 lcd1602显示

超声波测距 lcd1602显示
while(TempCycB--);
};
}
/********************************************************/
void Conut(void)
{
time=TH0*256+TL0;
TH0=0;
TL0=0;
S=(time*1.7)/100; //算出来是CM
{
WDLCM = ((WDLCM&0x01)<<7)|((WDLCM&0x02)<<5)|((WDLCM&0x04)<<3)|((WDLCM&0x08)<<1)|((WDLCM&0x10)>>1)|((WDLCM&0x20)>>3)|((WDLCM&0x40)>>5)|((WDLCM&0x80)>>7);
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
TX=0;
}
/********************************************************/
void delayms(unsigned int ms)
{
while (DData[ListLength]>0x19) //若到达字串尾则退出
{
if (X <= 0xF) //X坐标应小于0xF
{
DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符
ListLength++;

超声波测距程序_代码全

超声波测距程序_代码全

/*----------------------------------超声波子程序1、采用定时器0产生40KHZ的方波，同时也进行时间计数，等待中断；2、若超过30ms后，重新发送方波，重新计数，直到有中断（接收到返回信号）再做显示或其它处理。

3、在处理之后又后重新初始化定器0和中断0，又执行第一步------------------------------------*/#include <reg52.h>//1602已定义了#include "1602.h"#include "delay.h"#include <stdio.h>//包含sprintf函数sbitpwm=P3^7;//40KHZsbit led=P1^3;//接收到后亮灯unsigned intnum=0;//计数float s; //测出的距离bit flag=0;//中断0标志位unsigned char out_time=0;//超时标志位/*---------------------------------------定时器0用于产生40KHZ频率初始化---------------------------------------*/void T0_init(){TMOD=0X02; //定时器0工作在方式2，自动重装数据TL0=256-12; //产生40KHZTH0=256-12; //T=1/40k*1000000=25us即12.5us取反一次EA=1;ET0=1;TR0=1;}/*--------------------------------定时器0中断服务程序//用于工作计时、同时产生40KHZ方波---------------------------------*/void T0_time() interrupt 1{num++;if(num<30) pwm=~pwm;//产生15个40KHZ的方波if(num==2500) {num=0;out_time++;}//30ms后清除标志,同时}/*-----------------------------外部中断0初始化------------------------------*/void INT0_init(){IT0=1;//低电平触发方式EX0=1;//打开外部中断// PX0=1;//外部中断0为高优先级}/*-----------------------------外部中断0中断服务程序------------------------------*/void INT0_d() interrupt 0{EX0=0; //当中断了，证明接收到信号，关闭外断中断TR0=0; //关闭定时器0flag=1; //标志外部中断0产生}/*-------------------------------超声波测距函数//s的值为返回测距值--------------------------------*/void measure(){if(flag==1) //中断0标志，进入{flag=0; //清除标志位out_time=0; //清除超时标志位led=~led; //观察DelayMs(100); //延时,**适用STC12C5A60S2,低速单片机，要减少延时**s=(num*12)/2*0.34*0.001;//测距返回值TH0=256-12; //定时器0重新初始化TL0=256-12;TR0=1; //运行定时器0INT0_init(); //启动外部中断0}}/*-------------------------------超声波显示部分--------------------------------*/void display(){char displaytemp[16];//定义显示区域临时存储数组if(out_time==33) //大约1s的超时时间，再将显示为0.000{out_time=0; //清除标志位s=0; //显示0}sprintf(displaytemp,"distance:% 6.3f",s);//将数字转成字符串LCD_Write_String(0,1,displaytemp);//显示}//*********************主程序***********************//void main(){LCD_Init(); //1602初始化LCD_Clear(); //清屏T0_init(); //定时器0初始化INT0_init(); //启动外部中断0while(1){measure(); //超声波测距函数display(); //显示}}附链接文件程序：/* 1602.c *//*-----------------------------------------------名称：LCD1602引脚定义如下：1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK------------------------------------------------*/#include<reg52.h> //包含头文件，一般情况不需要改动，头文件包含特殊功能寄存器的定义#include<intrins.h>#include "1602.h"#include "delay.h"sbit RS = P2^6; //定义端口sbit RW = P2^5;sbit EN = P2^7;#define RS_CLR RS=0#define RS_SET RS=1#define RW_CLR RW=0#define RW_SET RW=1#define EN_CLR EN=0#define EN_SET EN=1#define DataPort P0/*------------------------------------------------判忙函数------------------------------------------------*/ bitLCD_Check_Busy(void){DataPort= 0xFF;RS_CLR;RW_SET;EN_CLR;_nop_();EN_SET;return (bit)(DataPort& 0x80);}/*------------------------------------------------写入命令函数------------------------------------------------*/ voidLCD_Write_Com(unsigned char com) {while(LCD_Check_Busy()); //忙则等待RS_CLR;RW_CLR;EN_SET;DataPort= com;_nop_();EN_CLR;}/*------------------------------------------------写入数据函数------------------------------------------------*/ voidLCD_Write_Data(unsigned char Data){while(LCD_Check_Busy()); //忙则等待RS_SET;RW_CLR;EN_SET;DataPort= Data;_nop_();EN_CLR;}/*------------------------------------------------清屏函数------------------------------------------------*/voidLCD_Clear(void){LCD_Write_Com(0x01);DelayMs(5);}/*------------------------------------------------写入字符串函数------------------------------------------------*/voidLCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) {if (y == 0){LCD_Write_Com(0x80 + x); //表示第一行}else{LCD_Write_Com(0xC0 + x); //表示第二行}while (*s){LCD_Write_Data( *s);s ++;}}/*------------------------------------------------写入字符函数------------------------------------------------*//* void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) {if (y == 0){LCD_Write_Com(0x80 + x);}else{LCD_Write_Com(0xC0 + x);}LCD_Write_Data( Data);}*//*------------------------------------------------初始化函数------------------------------------------------*/voidLCD_Init(void){LCD_Write_Com(0x38); /*显示模式设置*/DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);LCD_Write_Com(0x08); /*显示关闭*/LCD_Write_Com(0x01); /*显示清屏*/LCD_Write_Com(0x06); /*显示光标移动设置*/DelayMs(5);LCD_Write_Com(0x0C); /*显示开及光标设置*/}/* 1602.h *//*-----------------------------------------------名称：LCD1602.h引脚定义如下：1-VSS 2-VDD 3-V0 4-RS 5-R/W 6-E 7-14 DB0-DB7 15-BLA 16-BLK ------------------------------------------------*/#ifndef __1602_H__#define __1602_H__bitLCD_Check_Busy(void) ;voidLCD_Write_Com(unsigned char com) ;voidLCD_Write_Data(unsigned char Data) ;voidLCD_Clear(void) ;voidLCD_Write_String(unsigned char x,unsigned char y,unsigned char *s) ; voidLCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data) ; voidLCD_Init(void) ;#endif/* delay.c*/#include "delay.h"/*------------------------------------------------uS延时函数，含有输入参数unsigned char t，无返回值unsigned char 是定义无符号字符变量，其值的范围是0~255 这里使用晶振12M，精确延时请使用汇编,大致延时长度如下T=tx2+5 uS------------------------------------------------*/void DelayUs2x(unsigned int t){while(--t);}/*------------------------------------------------mS延时函数，含有输入参数unsigned char t，无返回值unsigned char 是定义无符号字符变量，其值的范围是0~255 这里使用晶振12M，精确延时请使用汇编------------------------------------------------*/voidDelayMs(unsigned int t){while(t--){//大致延时1mSDelayUs2x(245);DelayUs2x(245);}}/* delay.h*/#ifndef __DELAY_H__#define __DELAY_H__/*------------------------------------------------uS延时函数，含有输入参数unsigned char t，无返回值unsigned char 是定义无符号字符变量，其值的范围是0~255 这里使用晶振12M，精确延时请使用汇编,大致延时长度如下T=tx2+5 uS------------------------------------------------*/void DelayUs2x(unsigned int t);/*------------------------------------------------mS延时函数，含有输入参数unsigned char t，无返回值unsigned char 是定义无符号字符变量，其值的范围是0~255 这里使用晶振12M，精确延时请使用汇编------------------------------------------------*/voidDelayMs(unsigned int t);#endif。

超声波测距1602显示

超声波测距1602显示

//add 为显示字符的位置，x 为显示的字符
{ // //
Write_com(0x01); delay(5); WriteAddress(0x00);
delay(5); Write_com(0x80+0x40+add); WriteData(0x30+x); }
LCD1602()//1602 初显示 { LcdInt(); //调用 LCD 初始化函数 delay(10); Write_com(0x01); //清屏 delay(5); WriteAddress(0x00); //设置显示位置为第一行第一个字,这条语句可以不用写， 因为默认是从第一行第一个字显示
limi=s3/1000; //厘米 s4=s3%1000; haomi=s4/100;//毫米
if(s1>400000) { Write_com(0x80+0x40+3); WriteData('e'); delay(5); WriteData('r'); delay(5); WriteData('r'); delay(5); WriteData('o'); delay(5); WriteData('r'); delay(5); }
/***************************************************** 以上为 1602 模块语句 ***************************************************/
display(unsigned char add,unsigned char x)
/***************************************************** 函数功能：延时 1ms ***************************************************/

HC-SR04超声波测距的51单片机程序

HC-SR04超声波测距的51单片机程序
{
lcdrs=1;
P2=date;
delay(5);
lcden=1;
delay(5);
lcden=0;
}
void chushihua1602()
{
lcden=0;
write_order(0x38);
write_order(0x0c);
write_order(0x06);
write_order(0x01);
void zd3() interrupt 3//T1中断用来扫描数L1=0x30;
timer++;
if(timer>=400)
{
timer=0;
trig=1;//800MS启动一次模块
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
{
write_date(a[n]);
delay(3);
}
}
}
a[11]=(s%10000%1000/100)+0x30;
a[12]=(s%10000%1000%100/10)+0x30;
a[13]=(s%10000%1000%100%10)+0x30;
}
else//超出测量范围显示
{
flag=0;
a[9]='w';
a[10]='r';
a[11]='o';
a[12]='n';
write_date(a[0]);
write_date(a[1]);
write_date(a[2]);
write_date(a[3]);

超声波测距 51单片机 LCD12864显示

超声波测距 51单片机 LCD12864显示
}
if(flag==0)
{
led =1;
delay(200); //测试灯变化
}
}
}
#include <reg52.h> //包括一个52标准内核的头文件
#define uchar unsigned char //定义一下方便使用
#define uint unsigned int
#define ulong unsigned long
#define LCD_data P0
uchar code dis3[]={"距离:"};
uchar code dis4[]={"单位:mm"};
uchar code dis5[]={"危险!!"};
uchar code dis6[]={"安全"};
void delay(uint z)
{ uchar i,j ;
for(i=z;i>0;i--)
for(j=110;j>0;j--);
}
void write_cmd(uchar cmd)
{
LCD_RS=0;
LCD_RW=0;
LCD_EN=0;
P0=cmd;
delay(1);
LCD_EN=1;
delay(1);
LCD_EN=0;
}
void write_dat(uchar dat)
timer1() interrupt 3 // 定时器0中断是1号
{
TH1=0;
TL1=0;
}
void display()

LCD1602显示超声波测试的距离

LCD1602显示超声波测试的距离
P13 =0;
while(!P14);
TR0=1;
while(P14);
TR0=0;
m=TL0;
n=TH0;
time=n*256+m;
//if(time<=10600&&time>=115)
dis=(12/11.0592)*(time*0.034)/2;
}
else
{ */
LcdWriteCom(0xC0); //写地址 80表示初始地址
LcdWriteData('+'); //显示正
//tp=dis;//因为数据处理有小数点所以将温度赋给一个浮点型变量
//如果温度是正的那么，那么正数的原码就是补码它本身
datas[0] = dis / 100;
datas[1] = dis % 100/10;
datas[2] = dis % 10;
//datas[3] = dis % 100 / 10;
//datas[4] = dis % 10;
LcdWriteCom(0xc2); //写地址 80表示初始地址
LcdWriteCom(0xc3); //写地址 80表示初始地址
LcdWriteData('0'+datas[1]); //十位
LcdWriteCom(0xc4); //写地址 80表示初始地址
LcdWriteData('0'+datas[2]); //个位
void time0_init(void)
{
TMOD|=0x01;
TH0=0;
TL0=0;

超声波测距程序LCD液晶显示

超声波测距程序LCD液晶显示

超声波测距程序L C D液晶显示Hessen was revised in January 2021#include<>#include<>#define uint unsigned int#define uchar unsigned char#define NOP() {_nop_();_nop_();_nop_();_nop_();}//------LCD引脚-----sbit LCD_RS=P2^6;sbit LCD_RW=P2^5;sbit LCD_EN=P2^7;//------超声波引脚-------sbit Tx=P3^3; //触发控制信号输入Trigsbit Rx=P3^2; //回响信号输出 Echouchar code table[]={"Distance Test:"}; //LCD第一行显示uchar temp_dis[]= {" cm"}; //LCD第二行long int t,distance;uchar cache[4]={0,0,0,0};//--------延时-------void delay(uint ms){uint t;while(ms--)for(t=0;t<120;t++);}//-------读LCD状态-------uchar read_lcd_state(){uchar state;LCD_RS=0;LCD_RW=1;LCD_EN=1;_nop_();state=P0;LCD_EN=0;_nop_();return state;}//-------忙等待------void lcd_busy_wait(){while((read_lcd_state() & 0x80)==0x80);NOP();}//----------LCD写指令----------void lcd_write_com(uchar com){lcd_busy_wait();LCD_RS=0; //RS为0时，写指令，RS为1时，写数据LCD_RW=0;P0=com;NOP();LCD_EN=1;NOP();LCD_EN=0;}//----------LCD写数据----------void lcd_write_data(uchar dat){lcd_busy_wait();LCD_RS=1;LCD_RW=0;P0=dat;NOP();LCD_EN=1;NOP();LCD_EN=0;}//-------LCD初始化-------void lcd_init(){LCD_EN=0;lcd_write_com(0x38); //LCD显示模式设置lcd_write_com(0x0c); //LCD显示开/关及光标设置lcd_write_com(0x06); //当写一个字符后地址指针加1，且光标加1lcd_write_com(0x01); //显示清屏}//---------设置液晶显示位置-----------void set_lcd_pos(uchar p){lcd_write_com(p|0x80);}//---------液晶显示程序----------void lcd_print(uchar p,uchar *s,uint low){uint num;set_lcd_pos(p);for(num=0;num<low;num++){lcd_write_data(s[num]);delay(1);}}void HC05_Init(){Tx=1; //触发脉冲NOP();NOP();NOP();NOP();Tx=0;distance=*t; //距离计算}void distance_convert(long int dat){cache[0]=dat/1000;cache[1]=dat/100%10;cache[2]=dat/10%10;cache[3]=dat%10;temp_dis[0]=cache[0]+'0';temp_dis[1]=cache[1]+'0';temp_dis[2]=cache[2]+'0';temp_dis[4]=cache[3]+'0';}//------------主程序-----------void main(){lcd_init();delay(5);TMOD=0x19;EA=1; //开总中断TR0=1; //启动定时器EX0=1; //开外部中断IT0=1; //设置为下降沿中断方式while(1){HC05_Init();distance_convert(distance);lcd_print(0x01,table,14);lcd_print(0x44,temp_dis,8);}}//外部中断0void int0() interrupt 0{t=(TH0*256+TL0); //计算高电平持续的时间,上升沿到来时候开始计时，下降沿到来进入外部中断，关闭计时器，停止计时TH0=0;TL0=0;}。

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超声波L C D显示测距程序Company number【1089WT-1898YT-1W8CB-9UUT-92108】/************************************************************** ****************/ /*Name:LCD12864(St7920/St7921)+超声波测距模块+STC89C52*//*DYP-ME007超声波测距模块DEMO程序*//*晶振：11.0592M*/*//*接线：模块TRIG接P1.2ECH0接P1.1*//*RS(CS)接P3.3;*//*RW(SID)接P3.4;*//*E(SCLK)接P3.5;*//*PSB接GND串行模式*//************************************************************** ****************/#include<AT89X51.H>#include<intrins.h>//引脚定义sbitRX=P1^1;sbitTX=P1^2;sbitCS=P3^3; //片选高电平有效单片LCD使用时可固定高电平sbitSID=P3^4; //数据sbitSCLK=P3^5; //时钟//FunctionDefinition 函数声明voidDelay(intnum);voidInit_DS18B20(void);unsignedcharReadOneChar(void);voidWriteOneChar(unsignedchardat); unsignedintReadTemperature(void);voidclock_out(unsignedchardd);unsignedcharclock_in(void);unsignedcharread_clock(unsignedcharord);voidwrite_clock(unsignedcharord,unsignedchardd);voidDisp(void);voidid_case1_key(void);voidid_case2_key(void);voidSet_time(unsignedcharsel,bitsel_1);voidTimer0_Init(void);voidInit_1302(void);voidSet_Bell(unsignedcharsel,bitsel_1);voidBell(void);//12864voidWrite_char(bitstart,unsignedcharddata);voidSend_byte(unsignedcharbbyte);voidDelaynms(unsignedintdi);voidLcd_init(void);voidDisp_img(unsignedchar*img);voidLCD_Write_string(unsignedcharX,unsignedcharY,unsignedchar*s );voidLCD_set_xy(unsignedcharx,unsignedchary); unsignedcharcode:.-"};unsignedcharcodewaves[]={"超声波测距系统"}; unsignedcharcodeznwk[]={"智能微控工作室"}; unsignedcharcodeCM[]={"M"};unsignedinttime=0;longS=0;bitflag=0;unsignedchardisbuff[4] ={0,0,0,0,};unsignedcharcodelogo[]={/*--调入了一幅图像：logo.bmp--*//*--宽度x高度=128x64欢迎使用本产品LOGO--*//*--调入了一幅图像：C:\DocumentsandSettings\lwd\桌面\新建文件夹\X.bmp--*//*--宽度x高度=128x64--*/0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x60,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x0C,0x00,0x00,0x40,0x70,0x00,0x0 0,0x00,0x80,0x00,0x00,0x00,0x00,0xE0,0x00,0x00,0x1E,0x00,0x00,0x60,0x70,0x00,0x0 0,0x0F,0xE0,0x00,0x00,0x00,0x01,0xC0,0x00,0x60,0x3C,0x00,0x00,0xE0,0x60,0x00,0x1 F,0xFF,0xE0,0x00,0x00,0x00,0x03,0x80,0x00,0x70,0x70,0x40,0x00,0xE0,0x7E,0x00,0x1 F,0xE0,0xC0,0x00,0x00,0x00,0x03,0x00,0x00,0x73,0xC3,0xF0,0x01,0xC3,0xFC,0x00,0x3 8,0xE1,0xC0,0x00,0x00,0x03,0xC6,0x3C,0x00,0x33,0x9F,0xF0,0x03,0x8F,0xC0,0x00,0x3 0,0xC1,0xC0,0x00,0x00,0x3F,0xEF,0xFE,0x00,0x03,0x1C,0xE0,0x07,0x01,0xCC,0x00,0x3 1,0xF1,0x80,0x00,0x00,0x79,0xDF,0xBC,0x00,0x06,0x18,0xC0,0x0E,0x01,0xFE,0x00,0x7 7,0xF9,0x80,0x00,0x00,0x01,0xB0,0x30,0x01,0xC6,0x19,0xC0,0x1E,0x7F,0xDE,0x00,0x6 F,0x83,0x80,0x00,0x00,0x23,0xAC,0x60,0x0F,0xE6,0xF1,0x80,0x3E,0x7B,0x38,0x00,0x6 1,0x83,0x00,0x00,0x00,0x37,0x0E,0x00,0x0F,0xC7,0xB7,0x80,0xEC,0x63,0x30,0x00,0xE 3,0x03,0x00,0x00,0x00,0x3E,0x0E,0x00,0x01,0x8F,0x37,0x01,0xCC,0x6F,0xF0,0x00,0xC 7,0xF7,0x00,0x00,0x00,0x1E,0x0C,0x00,0x03,0x1E,0x66,0x03,0x0C,0x7F,0x00,0x01,0xF F,0xE6,0x00,0x00,0x00,0x1E,0x1C,0x00,0x03,0x1C,0x60,0x02,0x19,0xAC,0x00,0x01,0x9 6,0x06,0x00,0x00,0x00,0x3E,0x3E,0x00,0x03,0x18,0x60,0x00,0x19,0xFC,0x00,0x03,0x8 6,0x0E,0x00,0x00,0x00,0x7E,0x36,0x00,0x03,0x00,0xC0,0x00,0x38,0x78,0x00,0x03,0x0 6,0x0C,0x00,0x00,0x00,0xE6,0x67,0x00,0x03,0x00,0xC0,0x00,0x30,0x78,0x00,0x06,0x0 C,0x0C,0x00,0x00,0x01,0xC6,0xC3,0x80,0x7F,0xF0,0xC0,0x00,0x30,0xFE,0x00,0x0E,0x0 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8,0x00,0xE0,0x00,0x00,0x00,0x0C,0x00,0x00,0x0F,0xFF,0x80,0x00,0xF8,0xF0,0x00,0x3 8,0x00,0xE0,0x00,0x00,0x00,0x0C,0xF0,0x00,0x0F,0xC7,0x00,0x00,0x60,0xE0,0x00,0x3 8,0x00,0xE0,0x00,0x00,0x00,0x1F,0xF0,0x00,0x01,0x8E,0x00,0x00,0x60,0xC0,0x00,0x7 0,0x01,0xC0,0x00,0x00,0x07,0xFF,0x80,0x00,0x01,0x8C,0x00,0x00,0xE1,0x80,0x00,0x7 0,0x01,0xC0,0x00,0x00,0x07,0xF8,0x00,0x00,0x01,0x98,0x00,0x00,0xDF,0xC0,0x00,0x7 0,0x01,0xC0,0x00,0x00,0x00,0x78,0x00,0x00,0x01,0xBF,0xE0,0x00,0xFF,0x00,0x00,0x6 0,0x01,0x80,0x00,0x00,0x00,0xFC,0x00,0x00,0x7F,0xFF,0xE0,0x00,0xC0,0x00,0x00,0xE 0,0x03,0x80,0x00,0x00,0x01,0xFE,0x00,0x00,0x7F,0xF8,0x00,0x00,0x00,0x00,0x00,0xC 0,0x03,0x00,0x00,0x00,0x03,0xB7,0x00,0x00,0x60,0x00,0x00,0x00,0x00,0x3C,0x00,0xC 0,0x03,0x00,0x00,0x00,0x07,0x67,0x00,0x00,0x60,0x00,0x00,0x03,0x9F,0xFE,0x00,0x8 0,0x02,0x00,0x00,0x00,0x0E,0x63,0x80,0x00,0xE0,0x00,0x01,0xFF,0xCF,0x1E,0x01,0x8 0,0x06,0x00,0x00,0x00,0x1C,0xE1,0xE0,0x00,0xC0,0x00,0x00,0xE3,0x9C,0x38,0x01,0x8 0,0x06,0x00,0x00,0x00,0x38,0xC1,0xF8,0x01,0xC0,0x00,0x00,0xC3,0x18,0x30,0x00,0x0 0,0x00,0x00,0x00,0x00,0xE0,0xFC,0xFE,0x03,0x80,0x00,0x01,0xC7,0x18,0x60,0x00,0x0 0,0x00,0x00,0x00,0x01,0xDF,0xF8,0xFE,0x03,0x00,0x00,0x01,0x8E,0x1B,0xE0,0x07,0x0 0,0x1C,0x00,0x00,0x07,0x07,0x80,0x00,0x07,0x00,0x00,0x01,0xFF,0x3F,0xE0,0x07,0x0 0,0x1C,0x00,0x00,0x0C,0x03,0x80,0x00,0x0E,0x00,0x00,0x01,0xF0,0x38,0x00,0x0F,0x0 0,0x3C,0x00,0x00,0x00,0x03,0x00,0x00,0x1C,0x00,0x00,0x01,0x00,0x20,0x00,0x06,0x0 0,0x18,0x00,0x00,0x00,0x03,0x00,0x00,0x38,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x03,0x00,0x00,0xE0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x02,0x00,0x01,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0 0,0x00,0x00,0x00,};/************************************************************** ****************/voidLcd_init(void) //初始化LCD{Delaynms(10);//启动等待，等LCM讲入工作状态CS=1;Write_char(0,0x30);//8位介面，基本指令集Write_char(0,0x0c);//显示打开，光标关，反白关Write_char(0,0x01);//清屏，将DDRAM的地址计数器归零}/************************************************************** ****************/voidWrite_char(bitstart,unsignedcharddata)//写指令或数据{unsignedcharstart_data,Hdata,Ldata;if(start==0)start_data=0xf8; //写指令elsestart_data=0xfa;//写数据Hdata=ddata&0xf0; //取高四位Ldata=(ddata<<4)&0xf0;//取低四位Send_byte(start_data); //发送起始信号Delaynms(5);//延时是必须的Send_byte(Hdata); //发送高四位Delaynms(1);//延时是必须的Send_byte(Ldata); //发送低四位Delaynms(1);//延时是必须的}/************************************************************** ****************/voidSend_byte(unsignedcharbbyte)//发送一个字节{unsignedchari;for(i=0;i<8;i++){SID=bbyte&0x80;//取出最高位SCLK=1;SCLK=0;bbyte<<=1;//左移}}/************************************************************** ****************/voidDelaynms(unsignedintdi)//延时{unsignedintda,db;for(da=0;da<di;da++)for(db=0;db<10;db++);}/************************************************************** ****************/voidDisp_img(unsignedchar*img) //图形方式12864显示字模221横向取膜{unsignedchari,j;unsignedintk=0;Write_char(0,0x36);//图形方式for(i=0;i<32;i++){Write_char(0,0x80+i);Write_char(0,0x80);for(j=0;j<16;j++){Write_char(1,img[k++]);}}for(i=0;i<32;i++){Write_char(0,0x80+i);Write_char(0,0x88);for(j=0;j<16;j++){Write_char(1,img[k++]);}}}/************************************************************** ****************/voidClr_Scr(void)//清屏函数{Write_char(0,0x01);}/************************************************************** ****************/voidLCD_set_xy(unsignedcharx,unsignedchary){ //设置LCD显示的起始位置，X为行，Y为列unsignedcharaddress;switch(x){case0:address=0x80+y;break;case1:address=0x80+y;break;case2:address=0x90+y;break;case3:address=0x88+y;break;case4:address=0x98+y;break;default:address=0x80+y;break;}Write_char(0,address);}/************************************************************** ****************/voidLCD_Write_string(unsignedcharX,unsignedcharY,unsignedchar*s) { // 中英文字符串显示函数LCD_set_xy(X,Y);while(*s){Write_char(1,*s);s++;Delaynms(1);}}/************************************************************** ****************/voidLCD_Write_number(unsignedchars)// 数字显示函数{Write_char(1,num[s]);Delaynms(1);}/************************************************************** ****************/voidLcd_Mark2(void){Clr_Scr();//清屏LCD_Write_string(1,0,znwk);//LCD_Write_string(2,0,waves);//LCD_Write_string(3,7,CM);//}/********************************************************/ voidConut(void){time=TH0*256+TL0;TH0=0;TL0=0;S=time*1.87/100;//算出来是CM 11。

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