Full code for LESSON #6: DHTxx Sensor With Arduino

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#include <DHT.h>  // Include DHT library.

#define DHT_TYPE DHT11   // IF YOU HAVE A DHT11 SENSOR
//#define DHT_TYPE DHT22    //IF YOU HAVE A DHT22 SENSOR

#define DHT_PIN 3   // IN THIS LINE WE DEFINE THE DHT PIN = 3

DHT DHT_SENSOR (DHT_PIN,DHT_TYPE);

float Humidity = 0;  // Initial the humidity container variable

float Temp_C = 0;  // Initial the Temperature Celsius

float Temp_F = 0;  // Initial the Temperature Fahrenheit

void setup() {

Serial.begin(9600);   // Begin the serial monitor with baud rate of 9600

DHT_SENSOR.begin();   // Prepare the DHT sensor to measure the temperature and humidity

delay(1000);  // Wait for 1 Second
}

void loop() {

Humidity = DHT_SENSOR.readHumidity();  //  Read the Humidity from the sensor

delay(1000); // Wait for 1 Second

Temp_C = DHT_SENSOR.readTemperature();  // Read Temperature in Celsius

Temp_F = DHT_SENSOR.readTemperature(true);  // Read Temperature in Fahrenheit

Serial.println("Temerature In ℃ = ");

Serial.println(Temp_C);

Serial.println("\nTemerature In ℉ = ");

Serial.println(Temp_F);

Serial.println("\nHumidity = ");

Serial.println(Humidity);

Serial.println("\n");

}