Project - 5 :- Temperature and Humidity Measurement By Using Arduino

             PROJECT – Temperature and Humidity Measurement

In this tutorial you will learn how to use a DHT11 with Arduino and measure the temperature and humidity.  

                                                          STEP – 1: Components

Components Required:-

1.    Arduino Uno.

2.    Breadboard.

3.    DHT11 Sensor.

4.    Wires.                     

                                         STEP – 2: Circuit

The connections are pretty easy, see the image above with the breadboard circuit schematic.

                              

                                     STEP – 3: Add Library

Before you can use the DHT11 on the Arduino, you’ll need to install the DHTLib library. It has all the functions needed to get the humidity and temperature readings from the sensor. It’s easy to install, open up the Arduino IDE. Then go to Sketch>Include Library>Add .ZIP Library and select the DHTLib.zip file.

                                         STEP – 4: Upload Code

#include <dht11.h>

#define DHT11PIN 4

dht11 DHT11;

void setup()

{

  Serial.begin(9600);

}

void loop()

{

  Serial.println();

  int chk = DHT11.read(DHT11PIN);

  Serial.print("Humidity (%): ");

  Serial.println((float)DHT11.humidity, 2);

  Serial.print("Temperature (C): ");

  Serial.println((float)DHT11.temperature, 2);

  delay(2000);

} 

       /* Copy above Code and Paste in Your Arduino Sketch */

                                    Step 5: Well Done!

You have successfully completed one more Arduino Project and you learned how to use a DHT11 with Arduino and also learned how to measure temperature and humidity.

               THANKYOU!

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Previous Project - 4 :- Gas and Smoke Detector By Using Arduino