// Include necessary libraries
#include <OneWire.h>
#include <DallasTemperature.h>
#include <PulseSensorPlayground.h>

// Data wire is connected to Arduino pin 2
#define ONE_WIRE_BUS 2

// Setup a oneWire instance to communicate with any OneWire device
OneWire oneWire(ONE_WIRE_BUS);

// Pass oneWire reference to DallasTemperature library
DallasTemperature sensors(&oneWire);

// Pulse Sensor connected to analog pin A0
const int PulseSensorPin = A0;

// Create an instance of the PulseSensorPlayground object
PulseSensorPlayground pulseSensor;

void setup(void) {
  // Start serial communication
  Serial.begin(9600);
  
  // Start up the library
  sensors.begin();

  // Initialize the PulseSensor
  pulseSensor.analogInput(PulseSensorPin);
  pulseSensor.begin();
}

void loop(void) {
  // Request temperature from the sensor
  sensors.requestTemperatures();
  
  // Fetch the temperature in Celsius
  float tempC = sensors.getTempCByIndex(0);

  // Read pulse rate
  int myBPM = pulseSensor.getBeatsPerMinute();
  bool isHeartbeat = pulseSensor.sawStartOfBeat();

  // Print the readings to the serial monitor
  Serial.print("Body Temperature: ");
  Serial.print(tempC);
  Serial.println(" °C");

  if (isHeartbeat) {
    Serial.print("Pulse Rate: ");
    Serial.print(myBPM);
    Serial.println(" BPM");
  }

  // Wait a bit before the next loop
  delay(1000);
}