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//Project 6.03 Read TCN75A Temperature Sensor
#include <Wire.h> 
int tempreg = 0;        
float temperature = 0;   
byte address = 72;

void setup(){
  Serial.begin(9600);
  Wire.begin();
  //Do some setup for the sensor
  // Set the resolution of the measurement
  Wire.beginTransmission(address);
  // point to Configuration Register
  Wire.write(0x01);  
  // set the resolution 
  Wire.write(0x60);  
  // ends the command 
  Wire.endTransmission();      
  // points to the Temperature Register 
  Wire.beginTransmission(address); 
  Wire.write(0x00);           
  Wire.endTransmission();       
}

void loop(){
  // Receives data from the Temperature Register
  Wire.requestFrom(address,byte(2));
  tempreg = Wire.read();      
  tempreg= tempreg << 8;     
  tempreg |= Wire.read();  
  tempreg = tempreg >> 4; 
  // Calculate the temperature
  temperature =( float ) tempreg / 16;
  // Display the temperature in the Serial Monitor
  Serial.print("Temp F = ");
  Serial.print(temperature*9/5 + 32,2);
  Serial.print("   ");
  Serial.print("Temp C = ");
  Serial.println(temperature, 2);
  delay(500);
}
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