#include <Wire.h>
#include <MAX30100_PulseOximeter.h>

MAX30100_PulseOximeter pox; // Create an instance of the MAX30100 sensor

void setup() {
  Serial.begin(115200);
  
  // Initialize the sensor
  if (!pox.begin()) {
    Serial.println("MAX30100 not detected!");
    while (1);
  }
  
  // Configure the sensor
  pox.setIRLedCurrent(MAX30100_PulseOximeter::LED_CURR_50MA);  // Set IR LED current to 50mA
}

void loop() {
  // Update the sensor and get readings
  pox.update();
  
  // Get the pulse rate and SpO2 levels
  float heartRate = pox.getHeartRate();
  float SpO2 = pox.getSpO2();
  
  if (heartRate != -1) {
    Serial.print("Heart Rate: ");
    Serial.print(heartRate);
    Serial.println(" bpm");
  } else {
    Serial.println("Heart rate could not be detected.");
  }
  
  if (SpO2 != -1) {
    Serial.print("SpO2: ");
    Serial.print(SpO2);
    Serial.println(" %");
  } else {
    Serial.println("SpO2 could not be detected.");
  }
  
  delay(1000);  // Wait 1 second before reading again
}