Arduino代码的DHTxx

描述

我需要检查空调房的确切温度，以显示空调房与遥控器上显示的不一样。所以我决定做这个。

您将需要 x1 面包板（可选）

x1 套电线

x1 dhtxx

x1 Arduino uno

所以连接（从左到右）

引脚 1 至 5v

引脚 2 到数字引脚 7

引脚 3（留下它）

引脚 4 接地

它将以 C、F、K 和湿度显示

这里的代码

谢谢

//Libraries
#include ;
//#include:
//Constants
#define DHTPIN 7     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)
DHT dht(DHTPIN, DHTTYPE); //// Initialize DHT sensor for normal 16mhz Arduino
//Variables
int chk;
float hum;  //Stores humidity value
float temp; //Stores temperature value
float faran;
float kel;
void setup()
{
 Serial.begin(9600);
 dht.begin();
}
void loop()
{
   delay(2000);
   //Read data and store it to variables hum and temp
   hum = dht.readHumidity();
   temp= dht.readTemperature();
   //Print temp and humidity values to serial monitor
   Serial.print("Humidity : ");
   Serial.print(hum);
   Serial.println(" %");
   Serial.print("Temp     :");
   Serial.print(temp);
   Serial.println(" Celsius");
   faran = (temp * 9.0) / 5.0 + 32;
   Serial.print("Faranheit: ");
   Serial.print(faran);
   Serial.println(" F");
   kel = temp + 273.15;
   Serial.print("Kelvin: ");
   Serial.print(kel);
   Serial.println(" K");
   Serial.println("");
   Serial.println("");
   delay(5000); //Delay 5 sec
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