18、51单片机酒精浓度检测1602液晶显示

#include<reg52.h> //头文件 #define uchar unsigned char //宏定义 #define uint unsigned int uint nongdu_dat=0; bit set_flag=0; //uint H_Lim=400; uchar time_num=0,a,flag; uint W_ad=0; uint sum = 0; sbit RS=P2^5; sbit RW=P2^6; sbit EN=P2^7; uchar LCD1602_Table[]="0123456789"; uchar code DIS_TIM[16] ={"nongdu:----"}; //显示温湿度 //uchar code DIS_STA[16] ={" PM:--- ppm "}; // extern void delayms(uint xms); void WRITE_LCD1602_DAT(uchar date) { EN=0; RS=1; P0=date; EN=1; delayms(2); EN=0; } void WRITE_LCD1602_COM(uchar date) { EN=0; RS=0; P0=date; EN=1; delayms(2); EN=0; } void init_1602() { unsigned char i; RW=0; WRITE_LCD1602_COM(0x38); WRITE_LCD1602_COM(0x0c); WRITE_LCD1602_COM(0x06); WRITE_LCD1602_COM(0x01); WRITE_LCD1602_COM(0x80+0x40+2); for(i=0;i<11;i++) WRITE_LCD1602_DAT(DIS_TIM[i]); } /*************************************************** 函数名称：延时子函数 函数功能：按键消抖 ***************************************************/ void delayms(uint xms) { uint i,j; for(i=xms;i>0;i--) for(j=110;j>0;j--); } void Main_display() { WRITE_LCD1602_COM(0x80+0x40+9); WRITE_LCD1602_DAT(LCD1602_Table[nongdu_dat/1000]); WRITE_LCD1602_DAT(LCD1602_Table[nongdu_dat%1000/100]); WRITE_LCD1602_DAT(LCD1602_Table[nongdu_dat%1000%100/10]); WRITE_LCD1602_DAT(LCD1602_Table[nongdu_dat%10]); } #include"ADC0832.H" void nongdu() { nongdu_dat=W_ad; // if(nongdu_dat>H_Lim) // { // BEEP=0; // LED_R=0; // LED_G=1; // } // else // { // BEEP=1; // LED_R=1; // LED_G=0; // } } void main() { TMOD=0X21; TH0=(65536-50000)/256; TL0=(65536-50000)%256; ET0=1; TR0=1; EA=1; TH1=0xfd; TL1=0xfd; TR1=1; SM0=0; SM1=1; REN=1; EA=1; ES=1; init_1602(); while(1) { nongdu(); Main_display(); delayms(1000); a=nongdu_dat; ES=0; flag=0; SBUF=a/1000+48;//28; while(!TI); TI=0; SBUF=a%1000/100+48;//28; while(!TI); TI=0; SBUF=a%100/10+48;//28; while(!TI); TI=0; SBUF=a%10+48;//28; while(!TI); TI=0; SBUF=10;//28; while(!TI); TI=0; ES=0; delayms(50); } } void ser() interrupt 4 { RI=0; a=SBUF; P1=a; flag=1; } void time0() interrupt 1 { TH0=(65536-50000)/256; TL0=(65536-50000)%256; time_num++; sum+=A_D(); if(time_num==10) { time_num=0; W_ad=sum*3.9; sum=0; } }