Project 69.ino

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "MAX30100_PulseOximeter.h"
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

#define NUMFLAKES     10 // Number of snowflakes in the animation example

#define LOGO_HEIGHT   16
#define LOGO_WIDTH    16
#define REPORTING_PERIOD_MS 1000
PulseOximeter pox;
 
uint32_t tsLastReport = 0;
 
const unsigned char bitmap [] PROGMEM=
{
0x00, 0x00, 0x00, 0x00, 0x01, 0x80, 0x18, 0x00, 0x0f, 0xe0, 0x7f, 0x00, 0x3f, 0xf9, 0xff, 0xc0,
0x7f, 0xf9, 0xff, 0xc0, 0x7f, 0xff, 0xff, 0xe0, 0x7f, 0xff, 0xff, 0xe0, 0xff, 0xff, 0xff, 0xf0,
0xff, 0xf7, 0xff, 0xf0, 0xff, 0xe7, 0xff, 0xf0, 0xff, 0xe7, 0xff, 0xf0, 0x7f, 0xdb, 0xff, 0xe0,
0x7f, 0x9b, 0xff, 0xe0, 0x00, 0x3b, 0xc0, 0x00, 0x3f, 0xf9, 0x9f, 0xc0, 0x3f, 0xfd, 0xbf, 0xc0,
0x1f, 0xfd, 0xbf, 0x80, 0x0f, 0xfd, 0x7f, 0x00, 0x07, 0xfe, 0x7e, 0x00, 0x03, 0xfe, 0xfc, 0x00,
0x01, 0xff, 0xf8, 0x00, 0x00, 0xff, 0xf0, 0x00, 0x00, 0x7f, 0xe0, 0x00, 0x00, 0x3f, 0xc0, 0x00,
0x00, 0x0f, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
void onBeatDetected()
{
  Serial.println("Beat!");
  display.drawBitmap( 60, 20, bitmap, 28, 28, 1);
  display.display();
}
void setup() {
  Serial.begin(9600);

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
  display.display();
  delay(2000); // Pause for 2 seconds

  // Clear the buffer
  display.clearDisplay();
  
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0, 0);
 
  display.println("Initializing pulse oximeter..");
   display.display();
  Serial.print("Initializing pulse oximeter..");
 
  if (!pox.begin()) {
  Serial.println("FAILED");
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0, 0);
  display.println("FAILED");
  display.display();
  for(;;);
  } else {
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0, 0);
  display.println("SUCCESS");
  display.display();
  Serial.println("SUCCESS");
  }
  pox.setOnBeatDetectedCallback(onBeatDetected); 
}

void loop() {
  pox.update();
 
    if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
  Serial.print("Heart BPM:");
  Serial.print(pox.getHeartRate());
  Serial.print("-----");
  Serial.print("Oxygen Percent:");
  Serial.print(pox.getSpO2());
  Serial.println("\n");
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0,16);
  display.println(pox.getHeartRate());
 
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0, 0);
  display.println("Heart BPM");
 
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0, 30);
  display.println("Spo2");
 
  display.setTextSize(1);
  display.setTextColor(1);
  display.setCursor(0,45);
  display.println(pox.getSpO2());
  display.display();
tsLastReport = millis();
}
}