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Author: nefelimet

DHT11_Temp_Humidity.ino

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+//This uses a DHT11 temperature and humidity sensor, to measure and print out temperature and relative humidity of the environment the circuit is in
+
+#include <dht.h>
+dht DHT;
+#define DHT11_PIN 7
+
+void setup(){
+  Serial.begin(9600);
+}
+
+void loop(){
+  int chk = DHT.read11(DHT11_PIN);
+  Serial.print("Read sensor: ");
+  switch (chk)
+  {
+    case 0: Serial.println("OK"); break;                      //if everything is ok
+    case -1: Serial.println("Checksum error"); break;         //if there's a checksum error
+    case -2: Serial.println("Time out error"); break;         //if there's a timeout error
+    default: Serial.println("Unknown error"); break;          //if there's an unknown error
+  }
+  
+  Serial.print("Temperature = ");
+  Serial.println(DHT.temperature);
+  Serial.print("Humidity = ");
+  Serial.println(DHT.humidity);
+  delay(5000);
+}