51单片机DHT11温湿度传感器12864显示

uchar a[]="温湿度传感器"; uchar b[]="温度:"; uchar c[]="湿度:"; uchar d[]="0123456789"; typedef unsigned char U8; typedef unsigned int U16; U8 U8flag,k; U8 U8temp; U8 U8WD_H,U8WD_L,U8SD_H,U8SD_L,U8checkdata; U8 U8WDH_temp,U8WDL_temp,U8SDH_temp,U8SDL_temp,U8checkdata_temp; U8 U8comdata; void delay_1ms(uint n) { uint i,j; for(i=0;i<=n;i++) for(j=0;j<110;j++); } void delay_10us() { U8 i; i--;i--;i--;i--;i--;i--; } void write_com(uchar com) { rs=0; rw=0; en=0; P2=com; delay_1ms(1); en=1; delay_1ms(1); en=0; } void write_data(uchar date) { rs=1; rw=0; en=0; P2=date; delay_1ms(1); en=1; delay_1ms(1); en=0; } void pos(uchar x,uchar y) { uchar pos; if(x==0) x=0x80; else if(x==1) x=0x90; else if(x==2) x=0x88; else if(x==3) x=0x98; pos=x+y; write_com(pos); } void display(U8WD_H,U8WD_L,U8SD_H,U8SD_L) { U8 yi,er,san,si; yi=U8WD_H/10; er=U8WD_H; san=U8SD_H/10; si=U8SD_H; pos(1,4); write_data(d[yi]); pos(1,5); write_data(d[er]); pos(2,4); write_data(d[san]); pos(2,5); write_data(d[si]); } void com() { U8 i; for(i=0;i<8;i++) { U8flag=2; while((!SJK)&&U8flag++); delay_10us();delay_10us();delay_10us(); U8temp=0; if(SJK)U8temp=1; U8flag=2; while((SJK)&&U8flag++); if(U8flag==1)break; U8comdata<<=1; U8comdata|=U8temp; } }