Cara program Sensor Detak jantung dan oksigen darah MAX30102 pada Arduino Uno

#include <Arduino.h>

#include <Wire.h>
#include "MAX30105.h" // Include MAX30105 sensor library
#include "spo2_algorithm.h" // Include SpO2 calculation algorithm
 

MAX30105 particleSensor; // Create an instance of the MAX30105 class
 
#define MAX_BRIGHTNESS 255 // Define maximum LED brightness
 
// Adjust buffer size based on the microcontroller's memory capacity
#if defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__)
uint16_t irBuffer[100]; // Buffer for IR data (16-bit for memory-limited devices)
uint16_t redBuffer[100]; // Buffer for red LED data
#else
uint32_t irBuffer[100]; // Buffer for IR data (32-bit for devices with more memory)
uint32_t redBuffer[100]; // Buffer for red LED data
#endif
 
int32_t bufferLength = 100; // Length of data buffer
int32_t spo2; // Variable to store calculated SpO2 value
int8_t validSPO2; // Flag indicating if SpO2 calculation is valid
int32_t heartRate; // Variable to store calculated heart rate
int8_t validHeartRate; // Flag indicating if heart rate calculation is valid
 
 


 
void proses_sensor_max30102() {
  // Collect 100 samples and output raw red and IR data
  for (byte i = 0; i < bufferLength; i++) {
    while (!particleSensor.available()) particleSensor.check();  // Wait for new data
 
    redBuffer[i] = particleSensor.getRed();  // Store red LED data
    irBuffer[i] = particleSensor.getIR();    // Store IR data
    particleSensor.nextSample();             // Move to next sample
 
    Serial.print(F("red="));
    Serial.print(redBuffer[i], DEC);
    Serial.print(F(", ir="));
    Serial.println(irBuffer[i], DEC);
  }
 
  // Calculate heart rate and SpO2 from the first 100 samples
  maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate);
 
  // Continuously update heart rate and SpO2 values with new samples
  while (1) {
    // Shift the last 75 samples to the beginning and fill the remaining with new data
    for (byte i = 25; i < 100; i++) {
      redBuffer[i - 25] = redBuffer[i];
      irBuffer[i - 25] = irBuffer[i];
    }
 
    // Collect new samples to refill the buffer
    for (byte i = 75; i < 100; i++) {
      while (!particleSensor.available()) particleSensor.check();  // Wait for new data
 
      redBuffer[i] = particleSensor.getRed();  // Store new red data
      irBuffer[i] = particleSensor.getIR();    // Store new IR data
      particleSensor.nextSample();             // Move to next sample
 
      // Output raw data and calculated heart rate/SpO2 values
      Serial.print(F("red="));
      Serial.print(redBuffer[i], DEC);
      Serial.print(F(", ir="));
      Serial.print(irBuffer[i], DEC);
      Serial.print(F(", HR="));
      Serial.print(heartRate, DEC);
      Serial.print(F(", HRvalid="));
      Serial.print(validHeartRate, DEC);
      Serial.print(F(", SPO2="));
      Serial.print(spo2, DEC);
      Serial.print(F(", SPO2Valid="));
      Serial.println(validSPO2, DEC);
    }
 
    // Recalculate heart rate and SpO2 with the updated buffer
    maxim_heart_rate_and_oxygen_saturation(irBuffer, bufferLength, redBuffer, &spo2, &validSPO2, &heartRate, &validHeartRate);
  }
}


void setup()
{
Serial.begin(9600);
 Serial.begin(115200);  // Initialize serial communication
 
  // Initialize MAX30105 sensor
  if (!particleSensor.begin(Wire, I2C_SPEED_FAST)) {
    Serial.println(F("MAX30105 not found. Check wiring/power."));
    while (1)
      ;  // Halt execution if sensor not found
  }
 
  // Sensor configuration settings
  byte ledBrightness = 60;  // LED brightness (0-255)
  byte sampleAverage = 4;   // Averaging (1, 2, 4, 8, 16, 32)
  byte ledMode = 3;         // LED mode (1=Red, 2=Red+IR, 3=Red+IR+Green)
  byte sampleRate = 200;    // Sampling rate (50, 100, 200, 400, 800, 1000, 1600, 3200)
  int pulseWidth = 411;     // Pulse width (69, 118, 215, 411)
  int adcRange = 4096;      // ADC range (2048, 4096, 8192, 16384)
 
  // Apply configuration settings to the sensor
  particleSensor.setup(ledBrightness, sampleAverage, ledMode, sampleRate, pulseWidth, adcRange);
}

}
void loop(){
proses_sensor_max30102();


}