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加油 ~~~希望幫到你 仿真要8.0版本哦
仿真原理圖如下（proteus仿真工程文件可到本帖附件中下載）
單片機(jī)源程序如下:
- #include <reg52.h> /////////////頭文件
- ////////////////////////////////////////////////////////////////////////////
- void LcdShowStr(unsigned char x, unsigned char y, unsigned char *str);
- void ConfigTimer0(unsigned int ms);
- unsigned char IntToString(unsigned char *str, int dat);
- extern bit Start18B20();
- extern bit Get18B20Temp(int *temp);
- extern void InitLcd1602();
- bit DHT_Start();
- void aj (void);
- bit DHT_ByteRead(unsigned char *dat);
- /////////////////////////////////////////////////////////////////////
- sbit K1=P1^4; ///引腳聲明
- sbit K2=P1^5;
- sbit K3=P1^6;
- sbit K4=P1^7;
- sbit M1=P1^0;
- sbit M2=P1^1;
- sbit M3=P1^2;
- sbit M4=P1^3;
- sbit D1=P2^7;
- sbit D2=P2^6;
- sbit KD1=P2^3;
- sbit KD2=P2^4;
- /////////////////
- ///////////////////////////// 數(shù)組命名
- int SD,WD,x,xx,SDC,WDC,PWM1,PWM2;
- int KK1,KK2;
- int wdg=40,wdd=20,sdg=80,sdd=60;
- bit SZ,JB;
- bit flag1s = 0; //1s定時(shí)標(biāo)志
- unsigned char T0RH = 0; //T0重載值的高字節(jié)
- unsigned char T0RL = 0; //T0重載值的低字節(jié)
- ///////////////////////////////// 延時(shí)子程序
- void delay ()
- {
- x=99999;
- while(x--);
- }
- /////////////////////////////////
- void main() ////////////////主程序
- {
- bit tmp;
- unsigned char str[12];
- unsigned char DHT[5];
- ////初始化///////////////////////
- EA = 1; //開總中斷
- ConfigTimer0(10); //T0定時(shí)10ms
- InitLcd1602(); //初始化液晶
- M1=0; M1=0;M2=0;M3=0;D1=0;D2=0;
- ////////////////////////////////////
- DHT_Start();
- delay();
- delay();
- delay();
- delay();
- while (1)
- {
- LcdShowStr(0, 0, "WD"); //顯示到液晶屏上
- LcdShowStr(0, 1, "SD"); //顯示到液晶屏上
- LcdShowStr(5, 0, "H"); //顯示到液晶屏上
- LcdShowStr(5, 1, "H"); //顯示到液晶屏上
-
- LcdShowStr(9, 0, "L"); //顯示到液晶屏上
- LcdShowStr(9, 1, "L"); //顯示到液晶屏上
- if (flag1s) //每秒更新一次溫度
- {
-
-
- str[0] = (wdg/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (wdg%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- str[2] = '\0';
- LcdShowStr(6, 0, str);
- str[0] = (wdd/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (wdd%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- str[2] = '\0';
- LcdShowStr(10,0, str);
- str[0] = (sdg/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (sdg%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- str[2] = '\0';
- LcdShowStr(6, 1, str);
- str[0] = (sdd/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (sdd%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- str[2] = '\0';
- LcdShowStr(10, 1, str);
- DHT_Start();
- tmp=DHT_ByteRead(&DHT);
- if(tmp==1)
- {
- str[0] = (DHT[0]/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (DHT[0]%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- LcdShowStr(2, 1, str);
- str[0] = (DHT[2]/10)%10 + '0'; //十位轉(zhuǎn)為ASCII碼
- str[1] = (DHT[2]%10) + '0'; //個(gè)位轉(zhuǎn)為ASCII
- str[2] = '\0';
- LcdShowStr(2,0, str);
- WD= DHT[2];
- SD=DHT[0];
- }
- }
- ////////////////////超熱警報(bào)
- if(wdg<=WD)
- {
- WDC=WD-wdg+2;
- M1=1;
- }
- else M1=0;
- if(wdd>=WD)
- {
- WDC=wdd-WD+2;
- M2=1;
- }
- else M2=0;
- if(sdg<=SD)
- {
- SDC=SD-sdg+2;
- M3=1;
- }
- else M3=0;
- if(sdd>=SD)
- {
- SDC=sdd-SD+2;
- M4=1;
- }
- else M4=0;
- if(wdg<=WD||wdd>=WD)
- {
- PWM1++;
- if(PWM1<WDC)
- D1=1;
- if(PWM1>=WDC)
- D1=0;
- if(PWM1==10)
- PWM1=0;
- }
- if(wdg>WD&&wdd<WD&&KK1==0)
- D1=0;
- if(sdg<=SD||sdd>=SD)
- {
- PWM2++;
- if(PWM2<SDC)
- D2=1;
- if(PWM2>=SDC)
- D2=0;
- if(PWM2==10)
- PWM2=0;
- }
- if(sdg>SD&&sdd<SD&&KK2==0)
- D2=0;
- /////////////////////////////按鍵設(shè)置
- aj();
- //////////////////////////////////////////////
- }
- }
- void aj (void)
- {
- if(KD1==0)
- {
- delay();
- KK1++;
- if(KK1==1)
- D1=1;
- if(KK1>=2)
- {
- D1=0;
- KK1=0;
- }
- }
- if(KD2==0)
- {
- delay();
- KK2++;
- if(KK2==1)
- D2=1;
- if(KK2>=2)
- {
- D2=0;
- KK2=0;
- }
- }
- if(K1==0)
- {
- xx++;
- delay();
- if(xx==1)
- LcdShowStr(12, 0, "WDH"); //顯示到液晶屏上
- if(xx==2)
- LcdShowStr(12, 0, "WDL"); //顯示到液晶屏上
- if(xx==3)
- LcdShowStr(12, 0, "SDH"); //顯示到液晶屏上
- if(xx==4)
- LcdShowStr(12, 0, "SDL"); //顯示到液晶屏上
- if(xx>=5)
- xx=0;
- }
- if(K2==0)
- {
- if(xx==1)
- {
- LcdShowStr(12, 1, "WD+"); //顯示到液晶屏上
- wdg++;
- }
- if(xx==2)
- {
- LcdShowStr(12, 1, "WD+"); //顯示到液晶屏上
- wdd++;
- }
- if(xx==3)
- {
- LcdShowStr(12, 1, "SD+"); //顯示到液晶屏上
- sdg++;
- }
- if(xx==4)
- {
- LcdShowStr(12, 1, "SD+"); //顯示到液晶屏上
- sdd++;
- }
- delay();
- }
- if(K3==0)
- {
- if(xx==1)
- {
- LcdShowStr(12, 1, "WD-"); //顯示到液晶屏上
- wdg--;
- }
- if(xx==2)
- {
- LcdShowStr(12, 1, "WD-"); //顯示到液晶屏上
- wdd--;
- }
- if(xx==3)
- {
- LcdShowStr(12, 1, "SD-"); //顯示到液晶屏上
- sdg--;
- }
- if(xx==4)
- {
- LcdShowStr(12, 1, "SD-"); //顯示到液晶屏上
- sdd--;
- }
- delay();
- }
- if(K4==0)
- {
- delay();
- xx=0;
- InitLcd1602(); //初始化液晶
- }
- }
- /* 整型數(shù)轉(zhuǎn)換為字符串，str-字符串指針，dat-待轉(zhuǎn)換數(shù)，返回值-字符串長(zhǎng)度 */
- unsigned char IntToString(unsigned char *str, int dat)
- {
- signed char i = 0;
- unsigned char len = 0;
- unsigned char buf[6];
-
- if (dat < 0) //如果為負(fù)數(shù)，首先取絕對(duì)值，并在指針上添加負(fù)號(hào)
- {
- dat = -dat;
- *str++ = '-';
- len++;
- }
- do { //先轉(zhuǎn)換為低位在前的十進(jìn)制數(shù)組
- buf[i++] = dat % 10;
- dat /= 10;
- } while (dat > 0);
- len += i; //i最后的值就是有效字符的個(gè)數(shù)
- while (i-- > 0) //將數(shù)組值轉(zhuǎn)換為ASCII碼反向拷貝到接收指針上
- {
- *str++ = buf[i] + '0';
- }
- *str = '\0'; //添加字符串結(jié)束符
- ……………………
- …………限于本文篇幅 余下代碼請(qǐng)從51黑下載附件…………
所有資料51hei提供下載:
DHT11.zip
(198.88 KB, 下載次數(shù): 137)
2020-6-9 20:38 上傳
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