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MAX30102 – Optical Heart Rate Sensor – Purple COM55, R24

Fr4,000

The MAX30102 is an integrated pulse oximetry and heart-rate monitor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection.

In stock

SKU: SEN32309 Category:

Description

The MAX30102 is an integrated pulse oximetry and heart-rate monitor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. The MAX30102 provides a complete system solution to ease the design-in process for mobile and wearable devices. Communication is through a standard I2C-compatible interface. The module can be shut down through software with zero standby current, allowing the power rails to remain powered at all times.

Specification:

  • Tiny Board Size:12.7mm x 12.7mm (0.5in x 0.5in)
  • Form Color: Purple
  • Working Voltage:3.3V – 5v ( Recommended to use 3.3v)

Applications:

  • Wearables
  • Heart-rate monitor
  • Pulse oximeter

 

Hardware required:

Connecting the Hardware

 

 

 

Setting up the Arduino IDE

  1. Download and Install the Arduino IDE
  2. Go to Tools > Board > Board Manager 
  3. Type Arduino AVR Board and Click Install, Also install ESP8266 board when using nodemcu ESP8266 module  in your Arduino IDE.
  4. If boards are not in the Board Manager, Go to file > Preferences 
  5. Enter   http://arduino.esp8266.com/stable/package_esp8266com_index.json  (For ESP8266 module), https://github.com/dmadison/ArduinoXInput_AVR.git (For Arduino) , press OK
  6. Repeat step 3 to install the board.

Installing the Library

  1. Go to , Tools > Manage Libraries
  2. Type “MAX30102″ and install the one by SparkFun Electronics as shown below or download it here

See how to install library here

 

 

 

Upload the Sample Sketch

#include <Wire.h>
#include “Adafruit_MAX30102.h”

Adafruit_MAX30102 sensor;

void setup() {
Wire.begin();
Serial.begin(115200);
while (!Serial);

if (!sensor.begin()) {
Serial.println(“MAX30102 not found!”);
while (1);
}

Serial.println(“MAX30102 initialized.”);
}

void loop() {
int IR, red;

if (sensor.check()) {
IR = sensor.getIR();
red = sensor.getRed();
Serial.print(“IR: “); Serial.print(IR);
Serial.print(” Red: “); Serial.println(red);

Serial.print(“Mean Diff: “);
Serial.println(meanDiff(IR));
}

delay(10);
}

long meanDiff(int M) {
#define LM_SIZE 15
static int LM[LM_SIZE];
static byte index = 0;
static long sum = 0;
static byte count = 0;
long avg = 0;

sum -= LM[index];
LM[index] = M;
sum += LM[index];
index = (index + 1) % LM_SIZE;
if (count < LM_SIZE) count++;

avg = sum / count;
return avg – M;
}

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