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MAX30100 – SPO2 – Heart Rate Sensor Module, Black COM51, R25

Fr4,000

This is a MAX30100 based pulse oximetry and heart-rate monitor sensor breakout board. The MAX30100 sensor combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse oximetry and heart-rate signals. The MAX30100 operates from 1.8V and 3.3V power sup-plies and can be powered down through software with negligible standby current, permitting the power supply to remain connected at all times.

In stock

SKU: SEN32326 Category:

Description

This is a MAX30100 based pulse oximetry and heart-rate monitor sensor breakout board. The MAX30100 sensor combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse oximetry and heart-rate signals. The MAX30100 operates from 1.8V and 3.3V power sup-plies and can be powered down through software with negligible standby current, permitting the power supply to remain connected at all times.

Specifications

  • Interface: I2C
  • Dimension: 15.26×15.18×2.55mm
  • Weight: 0.8g
  • Operating voltage: 3.3v – 5v(Recommended to use 3.3v).

Key Features: 

  • MAX30100 – SPO2 & Heart Rate Monitoring for real-time health tracking
  • Measures Blood Oxygen Levels (SpO2) & Heart Rate (BPM)
  • Uses Infrared & Red LED Technology for accurate readings
  • I2C Communication Interface – Easy integration with Arduino, ESP32, Raspberry Pi, and other microcontrollers
  • Compact & Lightweight – Ideal for Wearables & IoT Health Projects
  • Low Power Consumption – Perfect for battery-powered applications

Hardware required

Connecting the MAX30100 – SPO2 & Heart Rate Sensor Module to the Arduino

  • If you’re facing issues with communication (especially SDA/SCL lines) or power supply consumption , Cut the trace in the place of the red line. This will disconnect all 4.7kΩ pull-up resistors from the 1.8V supply voltage.
  • Now make a jumper as shown by the yellow line with a piece of wire or a solder blob. This will pull all the 4.7kΩ resistors up to 3.3V.

 

 

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 MAX30100 and Click install the one by Connor Huffine or download it here

See how to install library here

 

 

Upload the sample Sketch

#include <Wire.h>
#include “Adafruit_MAX30100.h”

Adafruit_MAX30100 sensor;

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

if (!sensor.begin()) {
Serial.println(“MAX30100 not found!”);
while (1);
}

Serial.println(“MAX30100 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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