Heartbeat Detector Module

Heartbeat Detector Module

  • $4.15


Heartbeat Detector Module Code


/* SETUP

Heartbeat Sensor  Arduino
-         -       GND
          -       5V
S         -       A0
*/
 
int led_Pin = 13;   // initializing the led pin
int output_Pin = A0;    // initializing the sensor output pin

//initializng other variables

double alpha = 0.75;
int period = 200;
double change = 0.0;

void setup() {
  pinMode (led_Pin, OUTPUT);    // declaring led pin as output
  Serial.begin (115200);    // setting baud rate at 115200
}

void loop() {
    // initializing other variables
    static double oldValue = 0;
    static double oldChange = 0;
    int rawValue = analogRead (output_Pin);   // Reading the sensors values
    double value = alpha * oldValue + (1 - alpha) * rawValue;   // calculating values using the formula
    
    Serial.print (rawValue);    // printing the sensor output value on the screen
    Serial.print (",");                                                                                          
    Serial.println (value);   // printing the heart beat value on the screen
    
    oldValue = value;
    delay (period);
}

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