#include <Wire.h>
byte numberOfSamples = 1;
int analogReading;

void setup()
{
  Wire.begin();        // join i2c bus (address optional for master)
  Serial.begin(9600);  // start serial for output
  Serial.println("breath,heart\n");
}

void loop()
{
  analogReading = analogRead(0);
  Serial.print(analogReading, DEC);
  Serial.print(44,BYTE);  //comma

  //get heart rate from i2C bus
  Wire.beginTransmission(127); // transmit to device #4
  Wire.send(0x47); //G
  Wire.send(numberOfSamples);
  Wire.endTransmission();
  Wire.requestFrom(127,numberOfSamples + 2);
  if (Wire.available())
  {
    for (int i=0; i<numberOfSamples+2; i++){
      byte in = Wire.receive();
      if (i ==2)  //ony want the 3rd byte
        Serial.print( in,DEC);         // print the character

    }

  }
  
  Serial.print(10,BYTE);//send line return

  delay(200);
}