/*  Pulse Sensor Amped 1.5    by Joel Murphy and Yury Gitman   http://www.pulsesensor.com 

----------------------  Notes ----------------------  ----------------------

This code:

1) Blinks an LED to User's Live Heartbeat   PIN 13

2) Fades an LED to User's Live HeartBeat    PIN 5

3) Determines BPM

4) Prints All of the Above to Serial

Read Me:

https://github.com/WorldFamousElectronics/PulseSensor_Amped_Arduino/blob/master/README.md

 ----------------------       ----------------------  ----------------------

*/

#define PROCESSING_VISUALIZER 1

#define SERIAL_PLOTTER  2

//  Variables

int pulsePin = 0;                 // Pulse Sensor purple wire connected to analog pin 0

int blinkPin = 13;                // pin to blink led at each beat

int fadePin = 5;                  // pin to do fancy classy fading blink at each beat

int fadeRate = 0;                 // used to fade LED on with PWM on fadePin

// Volatile Variables, used in the interrupt service routine!

volatile int BPM;                   // int that holds raw Analog in 0. updated every 2mS

volatile int Signal;                // holds the incoming raw data

volatile int IBI = 600;             // int that holds the time interval between beats! Must be seeded!

volatile boolean Pulse = false;     // "True" when User's live heartbeat is detected. "False" when not a "live beat".

volatile boolean QS = false;        // becomes true when Arduoino finds a beat.

// SET THE SERIAL OUTPUT TYPE TO YOUR NEEDS

// PROCESSING_VISUALIZER works with Pulse Sensor Processing Visualizer

//      https://github.com/WorldFamousElectronics/PulseSensor_Amped_Processing_Visualizer

// SERIAL_PLOTTER outputs sensor data for viewing with the Arduino Serial Plotter

//      run the Serial Plotter at 115200 baud: Tools/Serial Plotter or Command+L

static int outputType = SERIAL_PLOTTER;

void setup(){

  pinMode(blinkPin,OUTPUT);         // pin that will blink to your heartbeat!

  pinMode(fadePin,OUTPUT);          // pin that will fade to your heartbeat!

  Serial.begin(115200);             // we agree to talk fast!

  interruptSetup();                 // sets up to read Pulse Sensor signal every 2mS

   // IF YOU ARE POWERING The Pulse Sensor AT VOLTAGE LESS THAN THE BOARD VOLTAGE,

   // UN-COMMENT THE NEXT LINE AND APPLY THAT VOLTAGE TO THE A-REF PIN

//   analogReference(EXTERNAL);

}

//  Where the Magic Happens

void loop(){

    serialOutput() ;

  if (QS == true){     // A Heartbeat Was Found

                       // BPM and IBI have been Determined

                       // Quantified Self "QS" true when arduino finds a heartbeat

        fadeRate = 255;         // Makes the LED Fade Effect Happen

                                // Set 'fadeRate' Variable to 255 to fade LED with pulse

        serialOutputWhenBeatHappens();   // A Beat Happened, Output that to serial.

        QS = false;                      // reset the Quantified Self flag for next time

  }

  ledFadeToBeat();                      // Makes the LED Fade Effect Happen

  delay(20);                             //  take a break

}

void ledFadeToBeat(){

    fadeRate -= 15;                         //  set LED fade value

    fadeRate = constrain(fadeRate,0,255);   //  keep LED fade value from going into negative numbers!

    analogWrite(fadePin,fadeRate);          //  fade LED

  }

아두이노 보드에 심박센서를 이용한 심박 측정기를 만드는 소스코드입니다. 제가  ATmega128 보드를 사용하고 싶은데 소스코드를 어떻게 바꿔야할지 모르겠습니다. 제가 가진 ATmega128 보드엔 D포트와 E포트 두가지만 사용이 가능합니다. LCD는 부착 되어있습니다. 위의 소스코드와 첨부한 소스코드를 한번 봐주시고 맞는지와 변환한 소스코드를 알려주시면 감사하겠습니다ㅠ