arduino使用溫度傳感器DHT11測(cè)量程序

ID:273838 · 發(fā)表于 2018-1-9 16:10

#include <dht11.h>
dht11 DHT11;
#define DHT11PIN 2
void setup()
{
  Serial.begin(9600);
}
void loop()
{
Serial.println("/n");
int chk = DHT11.read(DHT11PIN);
Serial.print("Read sensor: ");
switch (chk)
{
   case DHTLIB_OK:
            Serial.println("OK");
            break;
   case DHTLIB_ERROR_CHECKSUM:
            Serial.println("Checksum error");
            break;
   case DHTLIB_ERROR_TIMEOUT:
            Serial.println("Time out error");
            break;
   default:
            Serial.println("Unknown error");
            break;
  }
   Serial.print("Humidity (%): ");
   Serial.println((float)DHT11.humidity, 2);
   Serial.print("Temperature (oC): ");
   Serial.println((float)DHT11.temperature, 2);
   delay(2000);
}

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