【Arduino】arduino实现温湿度检测——通过数码管和显示屏显示

温湿度检测——通过数码管和显示屏显示"/>

【Arduino】arduino实现温湿度检测——通过数码管和显示屏显示

#include <LiquidCrystal_I2C.h>
#include <dht11.h>
#include <Wire.h>
#define DHT11PIN A0
LiquidCrystal_I2C lcd(0x27,16,2);
dht11 DHT11;//设置阴极接口int a = 13;int b = 2;int c = 3;int d = 4;int e = 5;int f = 6;int g = 7;int h =8;//设置阳极接口int d1 = 9;int d2 = 10;int d3 = 11;int d4 = 12;int m;int n;void setup(){pinMode(d1, OUTPUT);pinMode(d2, OUTPUT);pinMode(d3, OUTPUT);pinMode(d4, OUTPUT);pinMode(a, OUTPUT);pinMode(b, OUTPUT);pinMode(c, OUTPUT);pinMode(d, OUTPUT);pinMode(e, OUTPUT);pinMode(f, OUTPUT);pinMode(g, OUTPUT);pinMode(h, OUTPUT);pinMode(DHT11PIN, INPUT);lcd.init();lcd.backlight();}
void loop()
{int chk=DHT11.read(DHT11PIN);lcd.setCursor(0,0);lcd.print("Tep:");lcd.print((float)DHT11.temperature);lcd.print("'C");lcd.setCursor(0,1);lcd.print("Hum :");lcd.print((float)DHT11.humidity,2);lcd.print("%");delay(1000);for(int i=0;i<=200;i++){digitalWrite(h,LOW);Display(2,DHT11.temperature%10);delay(5);Display(1,DHT11.temperature/10);delay(5);m=(DHT11.temperature-DHT11.temperature/10*10-DHT11.temperature%10)*100;Display(3,m/10);delay(5);Display(4,m%10);delay(5);
}for(int j=0;j<=200;j++){digitalWrite(h,LOW);Display(2,DHT11.humidity%10);delay(5);Display(1,DHT11.humidity/10);delay(5);n=(DHT11.humidity-DHT11.humidity/10*10-DHT11.humidity%10)*100;Display(3,n/10);delay(5);Display(4,n%10);delay(5);}
// clear();
}
void WeiXuan(unsigned char n)//定义选择亮的位置
{switch(n){case 1: digitalWrite(d1,HIGH);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, LOW);   break;case 2: digitalWrite(d1, LOW);digitalWrite(d2, HIGH);digitalWrite(d3, LOW);digitalWrite(d4, LOW); break;case 3: digitalWrite(d1,LOW);digitalWrite(d2, LOW);digitalWrite(d3, HIGH);digitalWrite(d4, LOW); break;case 4: digitalWrite(d1, LOW);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, HIGH); break;default :digitalWrite(d1, LOW);digitalWrite(d2, LOW);digitalWrite(d3, LOW);digitalWrite(d4, LOW);break;}
}
void Num_0()//数字0
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, HIGH);digitalWrite(h,HIGH);
}
void Num_1()//数字1
{digitalWrite(a, HIGH);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(h,HIGH);
}
void Num_2()//数字2
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, HIGH);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, HIGH);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_3()//数字3
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_4()//数字4
{digitalWrite(a, HIGH);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_5()//数字5
{digitalWrite(a, LOW);digitalWrite(b, HIGH);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_6()//数字6
{digitalWrite(a, LOW);digitalWrite(b, HIGH);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_7()//数字7
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(h,HIGH);
}
void Num_8()//数字8
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, LOW);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Num_9()//数字9
{digitalWrite(a, LOW);digitalWrite(b, LOW);digitalWrite(c, LOW);digitalWrite(d, LOW);digitalWrite(e, HIGH);digitalWrite(f, LOW);digitalWrite(g, LOW);digitalWrite(h,HIGH);
}
void Clear()  //清屏
{digitalWrite(a, HIGH);digitalWrite(b, HIGH);digitalWrite(c, HIGH);digitalWrite(d, HIGH);digitalWrite(e, HIGH);digitalWrite(f, HIGH);digitalWrite(g, HIGH);digitalWrite(h,HIGH);
}
void pickNumber(unsigned char n)//选择亮数字的，将前面定义好的数字直接调用
{switch(n){case 0:Num_0();break;case 1:Num_1();break;case 2:Num_2();break;case 3:Num_3();break;case 4:Num_4();break;case 5:Num_5();break;case 6:Num_6();break;case 7:Num_7();break;case 8:Num_8();break;case 9:Num_9();break;default:Clear();break; }
}
void Display(unsigned char x, unsigned char Number)//选择对应的位置和数字
{WeiXuan(x);pickNumber(Number);delay(1);Clear() ; 
}

温湿度检测