基于单片机的温湿度检测c语言

#include "12864head.h" #include "18b20.h" #include "hs1101.h" //ds18b20相关程序 /************************************************************************** 功能：用于K毫秒延时 **************************************************************************/ unsigned char dat[8]={0}; //显示数组// unsigned char i,j; unsigned int t; void delaykms(unsigned char k) { unsigned char n,s; for(n=2*k;n>0;n--) for(s=248;s>0;s--); } /************************************************************************** 功能：用于i微秒延时 **************************************************************************/ void delay1(int z)//ms延时函数 { int x,y; for(x=z; x>0; x--) for(y=110;y>0;y--); } void delay(int us) { int s; for(s=0;s<us;s++); } //**************************************************************************** // 18B20温度采集模块 //**************************************************************************** unsigned char read(void) { unsigned char i,dat=0; for(i=8;i>0;i--) { DQ=0; dat>>=1; DQ=1; if(DQ) dat|=0x80; delay(4); } return (dat); } void write(unsigned char dat) { unsigned char i; for(i=8;i>0;i--) { DQ=0; DQ=dat&0x01; delay(5); DQ=1; dat>>=1; } } void readtemperature(void) { unsigned char temp; int temperature; reset(); write(0xcc); write(0x44); delay1(850); reset(); write(0xcc); write(0xbe); temperature=read(); temp=read(); temperature=temperature|(temp<<8); dat[4]=9; if(temperature<0) {temperature=~ temperature+1; dat[4]=8; } dat[0]=10; dat[1]=(temperature*10/16)/100; dat[2]=((temperature*10/16)%100)/10; dat[3]=((temperature*10/16)%100)%10; } unsigned char reset(void) { unsigned char presence; DQ=0; delay(29); DQ=1; delay(3); presence=DQ; delay(25); return(presence); } //12864相关程序 #define GDM12864ADataPort P1 //LCD数据线 /*--------函数列表-------*/ /*----------------------------------------------------------------------------------------------------*/ //状态检查 void CheckState() { unsigned char dat; DI=0; RW=1; do{ GDM12864ADataPort=0x00; EN=1; dat=GDM12864ADataPort; EN=0; dat=0x80 & dat; //仅当第7位为0时才可操作(判别busy信号) }while(!(dat==0x00)); } /*-----------------------------------------------------------------------------------------------------*/ //向LCD发送命令 //command :命令 SendCommandToLCD(unsigned char command) { CheckState(); RW=0; GDM12864ADataPort=command; EN=1; EN=0; } /*----------------------------------------------------------------------------------------------------*/ //写显示数据 //dat:显示数据 void WriteByte(unsigned char dat) { CheckState(); DI=1; RW=0; GDM12864ADataPort=dat; EN=1; EN=0; } /*----------------------------------------------------------------------------------------------------*/ //读显示数据 unsigned char ReadByte() { unsigned char dat; CheckState(); DI=1; RW=1; GDM12864ADataPort=0xff; EN=1; dat=GDM12864ADataPort; EN=0; return(dat); } /*----------------------------------------------------------------------------------------------------*/ //设定行地址(页)--X 0-7 void SetLine(unsigned char line) { line=line & 0x07; // 0<=line<=7 line=line|0xb8; //1011 1xxx SendCommandToLCD(line); } /*----------------------------------------------------------------------------------------------------*/ //设定列地址--Y 0-63 void SetColumn(unsigned char column) { column=column &0x3f; // 0=<column<=63 column=column | 0x40; //01xx xxxx SendCommandToLCD(column); } /*----------------------------------------------------------------------------------------------------*/ //设定显示开始行--XX void SetStartLine(unsigned char startline) //0--63 { startline=startline & 0x07; startline=startline|0xc0; //1100 0000 SendCommandToLCD(startline); } /*----------------------------------------------------------------------------------------------------*/ //开关显示 void SetOnOff(unsigned char onoff) { onoff=0x3e | onoff; //0011 111x SendCommandToLCD(onoff); } /*---------------------------------------------------------------------------------------------------*/ //选择屏幕 //screen: 0-全屏,1-左屏,2-右屏 void SelectScreen(unsigned char screen) { //cs1: 1--左; cs2: 1--右 switch(screen) { case 0: cs1=0;//全屏 _nop_(); _nop_(); _nop_(); cs2=0; _nop_(); _nop_(); _nop_(); break; case 1: cs1=0;//左屏 _nop_(); _nop_(); _nop_(); cs2=1; _nop_(); _nop_(); _nop_(); break; case 2: cs1=1;//右屏 _nop_(); _nop_(); _nop_(); cs2=0; _nop_(); _nop_(); _nop_(); break; } } /*---------------------------------------------------------------------------------------------------*/ //延时 GDM12864delay() { unsigned int i=500; while(i--) {;} } /*---------------------------------------------------------------------------------------------------*/ //清屏 //screen: 0-全屏,1-左屏,2-右 void ClearScreen(unsigned char screen) { unsigned char i,j; SelectScreen(screen); for(i=0;i<8;i++){ SetLine(i); for(j=0;j<128;j++){ WriteByte(0x00); } } } /*---------------------------------------------------------------------------------------------------*/ //初始化LCD void InitLCD() { unsigned char i=250; //延时 while(i--); SelectScreen(0); SetOnOff(0); //关显示 ClearScreen(0);//清屏 SelectScreen(0); SetOnOff(1); //开显示 SelectScreen(0); SetStartLine(0); //开始行:0 } /*----------------------------------------------------------------------------------------------------*/ /*----------------------------------------------------------------------------------------------*/ unsigned char code ASC[]={ /*'/'--0x2F 0x00,0x00,0x00,0x80,0xC0,0x60,0x30,0x00, 0x0C,0x06,0x03,0x01,0x00,0x00,0x00,0x00, /*0--0x30 */ 0xF8,0xFC,0x04,0xC4,0x24,0xFC,0xF8,0x00, 0x07,0x0F,0x09,0x08,0x08,0x0F,0x07,0x00, /*1--0x31 */ 0x00,0x10,0x18,0xFC,0xFC,0x00,0x00,0x00, 0x00,0x08,0x08,0x0F,0x0F,0x08,0x08,0x00, /*2--0x32 */ 0x08,0x0C,0x84,0xC4,0x64,0x3C,0x18,0x00, 0x0E,0x0F,0x09,0x08,0x08,0x0C,0x0C,0x00, /*3--0x33 */ 0x08,0x0C,0x44,0x44,0x44,0xFC,0xB8,0x00, 0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00, /*4--0x34 */ 0xC0,0xE0,0xB0,0x98,0xFC,0xFC,0x80,0x00, 0x00,0x00,0x00,0x08,0x0F,0x0F,0x08,0x00, /*5--0x35 */ 0x7C,0x7C,0x44,0x44,0xC4,0xC4,0x84,0x00, 0x04,0x0C,0x08,0x08,0x08,0x0F,0x07,0x00, /*6--0x36 */ 0xF0,0xF8,0x4C,0x44,0x44,0xC0,0x80,0x00, 0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00, /*7--0x37 */ 0x0C,0x0C,0x04,0x84,0xC4,0x7C,0x3C,0x00, 0x00,0x00,0x0F,0x0F,0x00,0x00,0x00,0x00, /*8--0x38 */ 0xB8,0xFC,0x44,0x44,0x44,0xFC,0xB8,0x00, 0x07,0x0F,0x08,0x08,0x08,0x0F,0x07,0x00, /*9--0x39 */ 0x38,0x7C,0x44,0x44,0x44,0xFC,0xF8,0x00, 0x00,0x08,0x08,0x08,0x0C,0x07,0x03,0x00, /*.--0x2E*/ 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x0C,0x0C,0x00,0x00,0x00, }; /*----------------------------------------------------------------------------------------------*/ /*本文件为16×16点阵中文字库文件,字的纵向8点构成一字节,上方的点在字节的低位 ,字符点阵四角按左上角→右上角→左下角→右下角取字*/ unsigned char code hzdot[]= { /*现 CCFD6 */ 0x04,0x84,0x84,0xFC,0x84,0x84,0x00,0xFE,0x02,0x02,0xF2,0x02,0x02,0xFE,0x00,0x00, 0x20,0x60,0x20,0x1F,0x10,0x90,0x40,0x23,0x18,0x06,0x01,0x7E,0x80,0x83,0xE0,0x