Descripción

Módulo de Sensor de ritmo cardíaco y oxímetro MAX30102

Placa de conexión para Arduino, reemplazo MAX30100

Diymore

Módulo de Sensor de ritmo cardíaco MAX30102, placa de separación para Arduino, reemplazo de MAX30100, si funciona y es durable

Característica:
Monitor óptico de ritmo cardíaco y solución de oximetría de pulso
Tamaño pequeño del tablero de 12,7mm x 12,7mm (0,5 pulgadas x 0,5 pulgadas)
De baja potencia
Libre algoritmo

Datos de prueba
Ventajas competitivas
Sensor de tamaño pequeño altamente integrado
Frecuencia Cardíaca sin pecho/detección de SpO2
Ultra-bajo consumo de energía

Aplicación:
Dispositivo portátil
Monitor de ritmo cardíaco
Oxímetro de pulso
1 x Módulo Sensor de frecuencia cardíaca MAX30102

Ejemplo C código fuente para plataformas Arduino y mbed

#include <Adafruit_GFX.h>        //libreria OLED 
#include <Adafruit_SSD1306.h>
#include <Wire.h>
#include "MAX30105.h"           //librería MAX3010x 
#include "heartRate.h"          //Algoritmo para el cálculo del pulso

MAX30105 particleSensor;

const byte RATE_SIZE = 4; //Increase this for more averaging. 4 is good.
byte rates[RATE_SIZE]; //Array of heart rates
byte rateSpot = 0;
long lastBeat = 0; //Time at which the last beat occurred
float beatsPerMinute;
int beatAvg;

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET    -1 // Reset pin # (or -1 if sharing Arduino reset pin)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //Declaring the display name (display)

static const unsigned char PROGMEM logo2_bmp[] =
{ 0x03, 0xC0, 0xF0, 0x06, 0x71, 0x8C, 0x0C, 0x1B, 0x06, 0x18, 0x0E, 0x02, 0x10, 0x0C, 0x03, 0x10,              //Logo2 and Logo3 are two bmp pictures that display on the OLED if called
0x04, 0x01, 0x10, 0x04, 0x01, 0x10, 0x40, 0x01, 0x10, 0x40, 0x01, 0x10, 0xC0, 0x03, 0x08, 0x88,
0x02, 0x08, 0xB8, 0x04, 0xFF, 0x37, 0x08, 0x01, 0x30, 0x18, 0x01, 0x90, 0x30, 0x00, 0xC0, 0x60,
0x00, 0x60, 0xC0, 0x00, 0x31, 0x80, 0x00, 0x1B, 0x00, 0x00, 0x0E, 0x00, 0x00, 0x04, 0x00,  };

static const unsigned char PROGMEM logo3_bmp[] =
{ 0x01, 0xF0, 0x0F, 0x80, 0x06, 0x1C, 0x38, 0x60, 0x18, 0x06, 0x60, 0x18, 0x10, 0x01, 0x80, 0x08,
0x20, 0x01, 0x80, 0x04, 0x40, 0x00, 0x00, 0x02, 0x40, 0x00, 0x00, 0x02, 0xC0, 0x00, 0x08, 0x03,
0x80, 0x00, 0x08, 0x01, 0x80, 0x00, 0x18, 0x01, 0x80, 0x00, 0x1C, 0x01, 0x80, 0x00, 0x14, 0x00,
0x80, 0x00, 0x14, 0x00, 0x80, 0x00, 0x14, 0x00, 0x40, 0x10, 0x12, 0x00, 0x40, 0x10, 0x12, 0x00,
0x7E, 0x1F, 0x23, 0xFE, 0x03, 0x31, 0xA0, 0x04, 0x01, 0xA0, 0xA0, 0x0C, 0x00, 0xA0, 0xA0, 0x08,
0x00, 0x60, 0xE0, 0x10, 0x00, 0x20, 0x60, 0x20, 0x06, 0x00, 0x40, 0x60, 0x03, 0x00, 0x40, 0xC0,
0x01, 0x80, 0x01, 0x80, 0x00, 0xC0, 0x03, 0x00, 0x00, 0x60, 0x06, 0x00, 0x00, 0x30, 0x0C, 0x00,
0x00, 0x08, 0x10, 0x00, 0x00, 0x06, 0x60, 0x00, 0x00, 0x03, 0xC0, 0x00, 0x00, 0x01, 0x80, 0x00  };


void setup() {  
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C); //Start the OLED display
  display.display();
  delay(3000);
  // Initialize sensor
  particleSensor.begin(Wire, I2C_SPEED_FAST); //Use default I2C port, 400kHz speed
  particleSensor.setup(); //Configure sensor with default settings
  particleSensor.setPulseAmplitudeRed(0x0A); //Turn Red LED to low to indicate sensor is running

}

void loop() {
 long irValue = particleSensor.getIR();    //Reading the IR value it will permit us to know if there's a finger on the sensor or not
                                           //Also detecting a heartbeat
if(irValue > 7000){                                           //If a finger is detected
    display.clearDisplay();                                   //Clear the display
    display.drawBitmap(5, 5, logo2_bmp, 24, 21, WHITE);       //Draw the first bmp picture (little heart)
    display.setTextSize(2);                                   //Near it display the average BPM you can display the BPM if you want
    display.setTextColor(WHITE); 
    display.setCursor(50,0);                
    display.println("BPM");             
    display.setCursor(50,18);                
    display.println(beatAvg); 
    display.display();
    
  if (checkForBeat(irValue) == true)                        //If a heart beat is detected
  {
    display.clearDisplay();                                //Clear the display
    display.drawBitmap(0, 0, logo3_bmp, 32, 32, WHITE);    //Draw the second picture (bigger heart)
    display.setTextSize(2);                                //And still displays the average BPM
    display.setTextColor(WHITE);             
    display.setCursor(50,0);                
    display.println("BPM");             
    display.setCursor(50,18);                
    display.println(beatAvg); 
    display.display();
    tone(3,1000);                                        //And tone the buzzer for a 100ms you can reduce it it will be better
    delay(100);
    noTone(3);                                          //Deactivate the buzzer to have the effect of a "bip"
    //We sensed a beat!
    long delta = millis() - lastBeat;                   //Measure duration between two beats
    lastBeat = millis();

    beatsPerMinute = 60 / (delta / 1000.0);           //Calculating the BPM

    if (beatsPerMinute < 255 && beatsPerMinute > 20)               //To calculate the average we strore some values (4) then do some math to calculate the average
    {
      rates[rateSpot++] = (byte)beatsPerMinute; //Store this reading in the array
      rateSpot %= RATE_SIZE; //Wrap variable

      //Take average of readings
      beatAvg = 0;
      for (byte x = 0 ; x < RATE_SIZE ; x++)
        beatAvg += rates[x];
      beatAvg /= RATE_SIZE;
    }
  }

}
  if (irValue < 7000){       //If no finger is detected it inform the user and put the average BPM to 0 or it will be stored for the next measure
     beatAvg=0;
     display.clearDisplay();
     display.setTextSize(1);                    
     display.setTextColor(WHITE);             
     display.setCursor(30,5);                
     display.println("Please Place "); 
     display.setCursor(30,15);
     display.println("your finger ");  
     display.display();
     noTone(3);
     }

}