   Serial.println(t);
 }
 
+// Stores all of the bmp085's calibration values into global variables
+// Calibration values are required to calculate temp and pressure
+// This function should be called at the beginning of the program
+void bmp085Calibration()
+{
+  ac1 = bmp085ReadInt(0xAA);
+  ac2 = bmp085ReadInt(0xAC);
+  ac3 = bmp085ReadInt(0xAE);
+  ac4 = bmp085ReadInt(0xB0);
+  ac5 = bmp085ReadInt(0xB2);
+  ac6 = bmp085ReadInt(0xB4);
+  b1 = bmp085ReadInt(0xB6);
+  b2 = bmp085ReadInt(0xB8);
+  mb = bmp085ReadInt(0xBA);
+  mc = bmp085ReadInt(0xBC);
+  md = bmp085ReadInt(0xBE);
+}
+
+// Calculate temperature given ut.
+// Value returned will be in units of 0.1 deg C
+short bmp085GetTemperature(unsigned int ut)
+{
+  long x1, x2;
+
+  x1 = (((long)ut - (long)ac6)*(long)ac5) >> 15;
+  x2 = ((long)mc << 11)/(x1 + md);
+  b5 = x1 + x2;
+
+  return ((b5 + 8)>>4);
+}
+
+// Calculate pressure given up
+// calibration values must be known
+// b5 is also required so bmp085GetTemperature(...) must be called first.
+// Value returned will be pressure in units of Pa.
+long bmp085GetPressure(unsigned long up)
+{
+  long x1, x2, x3, b3, b6, p;
+  unsigned long b4, b7;
+
+  b6 = b5 - 4000;
+  // Calculate B3
+  x1 = (b2 * (b6 * b6)>>12)>>11;
+  x2 = (ac2 * b6)>>11;
+  x3 = x1 + x2;
+  b3 = (((((long)ac1)*4 + x3)<<OSS) + 2)>>2;
+
+  // Calculate B4
+  x1 = (ac3 * b6)>>13;
+  x2 = (b1 * ((b6 * b6)>>12))>>16;
+  x3 = ((x1 + x2) + 2)>>2;
+  b4 = (ac4 * (unsigned long)(x3 + 32768))>>15;
+
+  b7 = ((unsigned long)(up - b3) * (50000>>OSS));
+  if (b7 < 0x80000000)
+    p = (b7<<1)/b4;
+  else
+    p = (b7/b4)<<1;
+
+  x1 = (p>>8) * (p>>8);
+  x1 = (x1 * 3038)>>16;
+  x2 = (-7357 * p)>>16;
+  p += (x1 + x2 + 3791)>>4;
+
+  return p;
+}
+
+// Read 1 byte from the BMP085 at 'address'
+char bmp085Read(unsigned char address)
+{
+  unsigned char data;
+
+  Wire.beginTransmission(BMP085_ADDRESS);
+  Wire.write(address);
+  Wire.endTransmission();
+
+  Wire.requestFrom(BMP085_ADDRESS, 1);
+  while(!Wire.available())
+    ;
+
+  return Wire.read();
+}
+
+// Read 2 bytes from the BMP085
+// First byte will be from 'address'
+// Second byte will be from 'address'+1
+int bmp085ReadInt(unsigned char address)
+{
+  unsigned char msb, lsb;
+  Wire.beginTransmission(BMP085_ADDRESS);
+  Wire.write(address);
+  Wire.endTransmission();
+
+  Wire.requestFrom(BMP085_ADDRESS, 2);
+  while(Wire.available()<2)
+  {
+    Serial.println(Wire.available());
+  }
+  msb = Wire.read();
+  lsb = Wire.read();
+
+  return (int) msb<<8 | lsb;
+}
+
+// Read the uncompensated temperature value
+unsigned int bmp085ReadUT()
+{
+  unsigned int ut;
+
+  // Write 0x2E into Register 0xF4
+  // This requests a temperature reading
+  Wire.beginTransmission(BMP085_ADDRESS);
+  Wire.write(0xF4);
+  Wire.write(0x2E);
+  Wire.endTransmission();
+
+  // Wait at least 4.5ms
+  delay(5);
+
+  // Read two bytes from registers 0xF6 and 0xF7
+  ut = bmp085ReadInt(0xF6);
+  return ut;
+}
+
+// Read the uncompensated pressure value
+unsigned long bmp085ReadUP()
+{
+  unsigned char msb, lsb, xlsb;
+  unsigned long up = 0;
+
+  // Write 0x34+(OSS<<6) into register 0xF4
+  // Request a pressure reading w/ oversampling setting
+  Wire.beginTransmission(BMP085_ADDRESS);
+  Wire.write(0xF4);
+  Wire.write(0x34 + (OSS<<6));
+  Wire.endTransmission();
+
+  // Wait for conversion, delay time dependent on OSS
+  delay(2 + (3<<OSS));
+
+  // Read register 0xF6 (MSB), 0xF7 (LSB), and 0xF8 (XLSB)
+  Wire.beginTransmission(BMP085_ADDRESS);
+  Wire.write(0xF6);
+  Wire.endTransmission();
+  Wire.requestFrom(BMP085_ADDRESS, 3);
+
+  // Wait for data to become available
+  while(Wire.available() < 3)
+    ;
+  msb = Wire.read();
+  lsb = Wire.read();
+  xlsb = Wire.read();
+
+  up = (((unsigned long) msb << 16) | ((unsigned long) lsb << 8) | (unsigned long) xlsb) >> (8-OSS);
+
+  return up;
+}

#include <Time.h>
#include "DHT.h"

#define DHTTYPE DHT22 
#define DHTPIN 2

float temp;
int tempIn = 0;

//bmp085 values
#define BMP085_ADDRESS 0x77  // I2C address of BMP085

const unsigned char OSS = 0;  // Oversampling Setting

// Calibration values
int ac1;
int ac2;
int ac3;
unsigned int ac4;
unsigned int ac5;
unsigned int ac6;
int b1;
int b2;
int mb;
int mc;
int md;

// b5 is calculated in bmp085GetTemperature(...), this variable is also used in bmp085GetPressure(...)
// so ...Temperature(...) must be called before ...Pressure(...).
long b5;

short temperature;
long pressure;

// Use these for altitude conversions
const float p0 = 101325;     // Pressure at sea level (Pa)
float altitude;

//bmp085 end of values

void setup()  
{
  analogReference(DEFAULT);
  Serial.begin(9600);
  Wire.begin();
  bmp085Calibration();
  dht.begin();
} 

void loop()  
{
  printTemp();
  delay(500);
  printDHT();
  delay(500);
  printBmp();
  delay(500);
}

void printBmp()
{
  temperature = bmp085GetTemperature(bmp085ReadUT());
  pressure = bmp085GetPressure(bmp085ReadUP());
  altitude = (float)44330 * (1 - pow(((float) pressure/p0), 0.190295));

  Serial.print("Temperature_Bmp:");
  Serial.println(temperature, DEC);
  delay(500);
  Serial.print("Pressure:");
  Serial.println(pressure, DEC);
  delay(500);
  Serial.print("Altitude:");
  Serial.println(altitude, 2);
}

void printTemp()
{
