Luc Paquin
Published © CC BY

Project #28 – Sensors – MAX30102 PPG Sensor – Mk21

Project #28 – Sensors – MAX30102 PPG Sensor – Mk21

BeginnerFull instructions provided1 hour133
Project #28 – Sensors – MAX30102 PPG Sensor – Mk21

Things used in this project

Hardware components

DFRobot FireBeetle 2 ESP32-E
×1
DFRobot Fermion: 3.5” 480x320 TFT LCD Capacitive
×1
DFRobot GDL Line 10 CM
×1
DFRobot Gravity: IO Shield for FireBeetle 2
×1
DFRobot Terminal Block Board for FireBeetle 2 ESP32-E IoT
×1
DFRobot Gravity: MAX30102 PPG Heart Rate and Oximeter Sensor
×1
DFRobot Lithium Ion Battery - 1000mAh
×1
DFRobot USB 3.0 to Type-C Cable
×1

Software apps and online services

Arduino IDE
Arduino IDE

Story

Read more

Schematics

Fritzing

Code

DL2512Mk03p.ino

Arduino
/****** Don Luc Electronics © ******
Software Version Information
Project #28 – Sensors – MAX30102 PPG Sensor – Mk21
28-21
DL2512Mk03p.ino
DL2512Mk03
1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 3.5” 480x320 TFT LCD Capacitive
1 x GDL Line 10 CM
1 x Gravity: IO Shield for FireBeetle 2
1 x Terminal Block Board for FireBeetle 2 ESP32-E IoT
1 x Gravity: MAX30102 PPG Heart Rate and Oximeter Sensor
1 x Lithium Ion Battery - 1000mAh
1 x USB 3.0 to Type-C Cable
*/

// Include the Library Code
// EEPROM Library to Read and Write EEPROM
// with Unique ID for Unit
#include "EEPROM.h"
// Arduino
#include "Arduino.h"
// DFRobot Display GDL API
#include <DFRobot_GDL.h>
// MAX30102 PPG Heart Rate and Oximeter
#include <DFRobot_BloodOxygen_S.h>

// Use I2C for communication, but use the 
//serial port for communication if the 
//line of codes were masked
#define I2C_COMMUNICATION
// Address
#define I2C_ADDRESS    0x57
// MAX30102 PPG Heart Rate and Oximeter
DFRobot_BloodOxygen_S_I2C MAX30102(&Wire ,I2C_ADDRESS);
float fSPO2 = 0;
float fHeartBeat = 0;
float fTempB = 0;

// Defined ESP32
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3

/*dc=*/ /*cs=*/ /*rst=*/
// DFRobot Display 320x480
DFRobot_ILI9488_320x480_HW_SPI screen(TFT_DC, TFT_CS, TFT_RST);

// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

// Software Version Information
String sver = "28-21";

void loop() {
  
  // PPG
  isPPG();

  // isDisplayPPG
  isDisplayPPG();

  // Delay
  delay( 1000 );
  
}

getDisplay.ino

Arduino
// DFRobot Display 320x480
// DFRobot Display 320x480 - UID
void isDisplayUID(){

  // DFRobot Display 320x480
  // Text Display
  // Text Wrap
  screen.setTextWrap(false);
  // Rotation
  screen.setRotation(3);
  // Fill Screen => black
  screen.fillScreen(0x0000);
  // Text Color => white
  screen.setTextColor(0xffff);
  // Font => Free Sans Bold 12pt
  screen.setFont(&FreeSansBold12pt7b);
  // TextSize => 1.5
  screen.setTextSize(1.5);
  // Don Luc Electronics
  screen.setCursor(0, 30);
  screen.println("Don Luc Electronics");
  // SD
  screen.setCursor(0, 60);
  screen.println("PPG Sensor");
  // Version
  screen.setCursor(0, 90);
  screen.println("Version");
  screen.setCursor(0, 120);
  screen.println( sver );
  // EEPROM
  screen.setCursor(0, 150);
  screen.println("EEPROM");
  screen.setCursor(0, 180);
  screen.println( uid );

}
// isDisplayPPG
void isDisplayPPG(){

  // DFRobot Display 320x480
  // Text Display
  // Text Wrap
  screen.setTextWrap(false);
  // Rotation
  screen.setRotation(3);
  // Fill Screen => white
  screen.fillScreen(0xffff);
  // Text Color => blue
  screen.setTextColor(0x001F);
  // Font => Free Sans Bold 12pt
  screen.setFont(&FreeSansBold12pt7b);
  // TextSize => 1.5
  screen.setTextSize(1.5);
  // Accelerometer
  screen.setCursor(0, 30);
  screen.println("PPG Sensor");
  // SPO2
  screen.setCursor(0, 60);
  screen.println("SPO2: ");
  screen.setCursor(190, 60);
  screen.println( fSPO2 );
  screen.setCursor(260, 60);
  screen.println(" %");
  // Heartbeat
  screen.setCursor(0, 90);
  screen.println("Heartbeat: ");
  screen.setCursor(190, 90);
  screen.println( fHeartBeat );
  screen.setCursor(260, 90);
  screen.println(" Times/Min");
  // Temperature Board
  screen.setCursor(0, 120);
  screen.println("Temp Board: ");
  screen.setCursor(190, 120);
  screen.println( fTempB );
  screen.setCursor(260, 120);
  screen.println(" C");

}

getEEPROM.ino

Arduino
// EEPROM
// isUID EEPROM Unique ID
void isUID() {
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 7; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }

}

getPPG.ino

Arduino
// MAX30102 PPG Heart Rate and Oximeter
// Setup PPG
void iSetupPPG(){

  // Setup PPG
  while (false == MAX30102.begin())
  {
    
    delay(1000);
    
  }

  // Begin
  MAX30102.sensorStartCollect();
  
}
// is PPG
void isPPG(){

  // MAX30102 PPG Heart Rate and Oximeter
  MAX30102.getHeartbeatSPO2();
  // SPO2
  fSPO2 = MAX30102._sHeartbeatSPO2.SPO2;
  // Heartbeat
  fHeartBeat = MAX30102._sHeartbeatSPO2.Heartbeat;
  // Temperature Board
  fTempB = MAX30102.getTemperature_C();
  
}

setup.ino

Arduino
// Setup
void setup()
{
 
  // Delay
  delay( 100 );

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);

  // EEPROM Unique ID
  isUID();

  // Delay
  delay( 100 );

  // Wire
  Wire.begin();

  // Delay
  delay( 100 );

  // Setup PPG
  iSetupPPG();

  // Delay
  delay( 100 );
  
  // DFRobot Display 320x480
  screen.begin();

  // Delay
  delay(100);

  // DFRobot Display 320x480 - UID
  // Don Luc Electronics
  // Version
  // EEPROM
  isDisplayUID();

  // Delay 5 Second
  delay( 5000 );

}

Credits

Luc Paquin
72 projects • 5 followers
Teacher, Instructor, E-Mentor, R&D and Consulting -Programming Language -Microcontrollers -IoT -Robotics -Machine Learning -AI -Sensors

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Related channels and tags
  • DFRobot
  • Internet of Things
  • Internet of Things
  • Sensors
  • Sensors