#include <Wire.h>
#include <MAX30105.h>

MAX30105 particleSensor;

void setup() {
  Serial.begin(115200);
  Wire.begin();
  
  if (!particleSensor.begin()) {
    Serial.println("MAX30102 not found. Please check your wiring.");
    while (1);
  }
  
  // Configure sensor for heart rate and SpO2 measurement
  particleSensor.setup(); // Use default settings
  particleSensor.setPulseAmplitudeRed(0x0A); // Red LED brightness (0x0A = 10)
  particleSensor.setPulseAmplitudeGreen(0x0A); // Green LED brightness (0x0A = 10)
}

void loop() {
  // Read the sensor values
  long redValue = particleSensor.getRed();
  long irValue = particleSensor.getIR();
  
  if (redValue == 0 || irValue == 0) {
    Serial.println("Sensor is not detecting a valid pulse. Ensure the sensor is in contact with the skin.");
  } else {
    Serial.print("Red: ");
    Serial.print(redValue);
    Serial.print(" IR: ");
    Serial.println(irValue);
  }
  
  delay(1000);  // Delay for 1 second before reading again
}