dht11_logger.ino

#include "DHT.h"

#define DHTPIN 2
#define DHTTYPE DHT11

#define PERIOD 5000

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  Serial.println(F("# READY"));
}

void loop() {
  delay(PERIOD);

  float h = dht.readHumidity();
  float t = dht.readTemperature();

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t)) {
    Serial.println(F("# ERROR"));
    return;
  }

  Serial.print(t);
  Serial.print(' ');
  Serial.println(h);
}