// Project 12 - Pulse Monitor Test Script



 



int ledPin = 13;



int sensorPin = 0;



 



double alpha = 0.75;



int period = 20;



double change = 0.0;



 



void setup()                   



{



  pinMode(ledPin, OUTPUT);



  Serial.begin(115200);



}



 



void loop()                    



{



    static double oldValue = 0;



    static double oldChange = 0;



    int rawValue = analogRead(sensorPin);



    double value = alpha * oldValue + (1 - alpha) * rawValue;



 



    Serial.print(rawValue);



    Serial.print(",");



    Serial.println(value);



 



    oldValue = value;



    delay(period);



}