Embedded system Fun Blog
























































Find out all the best information, libraries and circuit about the latest Embedded systems.
Showing posts with label thermometer. sensor. Show all posts
Showing posts with label thermometer. sensor. Show all posts

Sunday, 6 January 2013

Example Code for a TMP102 I2c Thermometer sensor

.from:  https://github.com/codebendercc/arduino-files/blob/master/extra-libraries/ArduSat-I2Csensors/tmp102.cpp


X------------------------X tmp102.h X-------------------------X




/*
mag3110.h
libary for using the I2C tmp102 temperature sensor

(c) Written by Jeroen Cappaert for NanoSatisfi, August 2012
*/

#ifndef tmp102_h
#define tmp102_h

#include <Arduino.h>

#define TEMP_ADDR 0x48 // Temp-sensor data register


class tmp102
{
  public:
    tmp102();
   float getTemperature();
  private:
};



#endif

X------------------------X tmp102.cpp X-------------------------X




/*
tmp102.cpp
libary for using the I2C tmp102 temperature sensor

(c) Written by Jeroen Cappaert for NanoSatisfi, August 2012
*/

#include <Arduino.h>
#include "tmp102.h"
#include <Wire.h>

//Constructor
tmp102::tmp102()
{
  
}


// get temperature value
float tmp102::getTemperature()
{
  Wire.requestFrom(TEMP_ADDR,2);

  byte MSB = Wire.read();
  byte LSB = Wire.read();

  //it's a 12bit int, using two's compliment for negative
  int TemperatureSum = ((MSB << 8) | LSB) >> 4;

  float celsius = TemperatureSum*0.0625;
  return celsius;
}
X-------------------------------------------------X