Temperature,Humidity and Pressure sensor data find using Arduino .(BMP180,DHT11)

******************************DHT11*****************

#include <DHT.h>

// for DHT11,  VCC: 5V or 3V,GND: GND,DATA: 2

int pinDHT11 = 2;

DHT11 dht11;

void setup() {

  Serial.begin(9600);

}

void loop() {

  // start working...

  Serial.println("************************");

  Serial.println("DHT11...");

    byte temperature = 0;

  byte humidity = 0;

  int err = DHTErrSuccess;

  if ((err = dht11.read(pinDHT11, &temperature, &humidity, NULL)) != DHTErrSuccess) {

    Serial.print("Read DHT11 failed, err="); Serial.println(err);delay(1000);

    return;

  }

   Serial.print("Sample OK: ");

  Serial.print((int)temperature); Serial.print(" *C, ");

  Serial.print((int)humidity); Serial.println(" H");

    delay(1500);

}

*************************************BMP180***************

#include <Wire.h>

#include <Adafruit_BMP085.h>

  products from Adafruit!

// Connect VCC of the BMP085 sensor to 3.3V (NOT 5.0V!)

// Connect GND to Ground

// Connect SCL to i2c clock - on '168/'328 Arduino Uno/Duemilanove/etc thats Analog 5

// Connect SDA to i2c data - on '168/'328 Arduino Uno/Duemilanove/etc thats Analog 4

void setup() {

  Serial.begin(9600);

  if (!bmp.begin()) {

                Serial.println("Could not find a valid BMP085 sensor, check wiring!");

                while (1) {}

  }

}

 

void loop() {

    Serial.print("Temperature = ");

    Serial.print(bmp.readTemperature());

    Serial.println(" *C");

     Serial.print("Pressure = ");

    Serial.print(bmp.readPressure());

    Serial.println(" Pa");

     Serial.print("Altitude = ");

    Serial.print(bmp.readAltitude());

    Serial.println(" meters");

    Serial.print("Pressure at sealevel (calculated) = ");

    Serial.print(bmp.readSealevelPressure());

    Serial.println(" Pa");

 Serial.print("Real altitude = ");

    Serial.print(bmp.readAltitude(101500));

    Serial.println(" meters");

   

    Serial.println();

    delay(1500);

}