DHT11 returning incorrect values

Question

I am trying to use DHT11 sensor with Arduino. But unfortunately it is returning following values:

Temperature = 1.00 Humidity = 2.00

My code is as follows:

#include <dht.h>
dht DHT;
#define DHT11_PIN 7

void setup(){
   Serial.begin(9600);
}

void loop()
{
    int chk = DHT.read11(DHT11_PIN);
    Serial.print("Temperature = ");
    Serial.println(DHT.temperature);
    Serial.print("Humidity = ");
    Serial.println(DHT.humidity);
    delay(1000);
}

Link to the library I am using is here

I have connected +ve to 3.3 V I have connected -ve to Ground I have connected out to digital pin # 7

Answer 1

You have to call the functions:

#include <DHT.h>
#define DHT11_PIN 7
DHT dht(DHT11_PIN, DHT11);

void setup() {
    Serial.begin(9600);
    dht.begin();
}

void loop() {

    float humidity = dht.readHumidity();
    float temperature = dht.readTemperature();

   if (isnan(humidity) || isnan(temperature)) {
      Serial.println("Failed to read from DHT sensor!");
      return;
    }

    Serial.print("Temperature = ");
    Serial.println(temperature);
    Serial.print("Humidity = ");
    Serial.println(humidity);

    delay(1000);
}

Edit

Answer 2

This is not a DHT11, DHT11 is blue, DHT21 is black, and DHT 22 is white. It must be a DHT22 hence the wrong values.

EDIT : on your pictures the white case says AM2302, it's definitely a DHT22 the code must be adapted accordingly.