Code for TMP102 Tempurature Sensor

#include <Wire.h>
int tmp102Address = 0x48;

void setup(){
 Serial.begin(9600); //Set our baud rate to 9600 for our serial connection
 Wire.begin(); // Initiate the Wire library and join the I2C bus
}

void loop(){

 float celsius = getTemperature(); // Get the temperature in C and save it as a float called celsius.
 Serial.print("Celsius: "); // Print our description of the temp
 Serial.println(celsius); // Print our temp in C


 float fahrenheit = (1.8 * celsius) + 32;  // Get the temperature in C and save it as a float called fahrenheit after converting it from celsius.
 Serial.print("Fahrenheit: "); // Print our description of the temp.
 Serial.println(fahrenheit); // Print the temp in F

 delay(200); //just here to slow down the output. You can remove this
}

// Let’s take a look at our getTempurature function. Without it, nothing would work.
float getTemperature(){
 Wire.requestFrom(tmp102Address,2); // We use our wire library’s get two readings from our TMP102. We pass it the address and the quantity.


// You may have noticed that we didn’t do anything with the request. That’s because we have to read back we requested. We do that sequentially.
 byte MSB = Wire.read(); // The first byte we get, the Most Significant, get’s stored in MSB.
 byte LSB = Wire.read(); // The second byte we get, the Least Significant, get’s stored in LSB.


 int TemperatureSum = ((MSB << 8) | LSB) >> 4;

 float celsius = TemperatureSum*0.0625; // Convert our temp to celsius.
 return celsius; // Return our result to be printed.
}