MAX30100 Purple Heart Rate

💓 MAX30100 heart-rate & pulse oximeter sensor module (Purple)
🩸 Captures heart rate and SpO2 (blood oxygen) signals
🔴🔵 Integrated red + IR LEDs with photodetector
🚌 I2C interface—easy to connect to Arduino/ESP32/STM32
⚡ Low power operation—great for wearable projects
🧩 Ideal for fitness tracking and health monitoring prototypes
🛠️ Compact breakout board for quick integration
✅ Popular choice for DIY biomedical and IoT applications

SKU: aA1627 Categories: Biometric/ECG/EMG Sensor, Sensors Tags: Biometric/ECG/EMG Sensor, Sensors

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Description

MAX30100 Purple Heart Rate

🔌

Pin Connections

1 Table

Pin Connections Table 1

Board	Sensor Pin	Connection
MAX30100	VCC/GND/SDA/SCL	3.3V / GND / board SDA / board SCL

📟

MAX30100 Purple Heart Rate

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

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MAX30100 Purple Heart Rate - Arduino Uno

MAX30100 Purple Heart Rate - Arduino Nano

MAX30100 Purple Heart Rate - Arduino Mega

MAX30100 Purple Heart Rate - ESP32

MAX30100 Purple Heart Rate - ESP8266

MAX30100 Purple Heart Rate - STM32

MAX30100 Purple Heart Rate - Raspberry Pi Pico

📄 File: max30100_purple_heart_rate_-_arduino_uno.inoArduino Uno

915 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Uno: A4=SDA, A5=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_arduino_nano.inoArduino Nano

916 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Nano: A4=SDA, A5=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_arduino_mega.inoArduino Mega

918 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Arduino Mega: D20=SDA, D21=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_esp32.inoESP32

917 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for ESP32: GPIO21=SDA, GPIO22=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_esp8266.inoESP8266

911 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for ESP8266: D2=SDA, D1=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_stm32.inoSTM32

911 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for STM32: PB7=SDA, PB6=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

📄 File: max30100_purple_heart_rate_-_raspberry_pi_pico.inoRaspberry Pi Pico

927 characters

1//ekostra.com

2//electronics store in egypt

3//+201008896258

5// I2C wiring for Raspberry Pi Pico: GPIO4=SDA, GPIO5=SCL

6#include <Wire.h>

7#include "MAX30105.h" // SparkFun library - also covers MAX30100/30102 register-compatible reads

9MAX30105 particleSensor;

11void setup() {

12 Serial.begin(115200);

13 Wire.begin();

14 if (!particleSensor.begin(Wire, I2C_SPEED_STANDARD)) {

15 Serial.println("MAX3010x not found - check wiring!");

16 while (1) delay(10);

17 }

18 particleSensor.setup(); // default sensor settings (LED brightness, sample rate...)

19}

21void loop() {

22 long irValue = particleSensor.getIR();

24 if (irValue < 50000) {

25 Serial.println("No finger detected");

26 } else {

27 Serial.print("IR: "); Serial.print(irValue);

28 Serial.print(" Red: "); Serial.println(particleSensor.getRed());

29 // Real BPM/SpO2 needs the library's beat-detection / SpO2 algorithm on top of these raw readings.

30 }

32 delay(20);

33}

Project Notes:

I2C optical heart-rate/SpO2 sensor.

Required Libraries:

SparkFun MAX3010xGitHub

Specification

WeightWeight	6 g
Dimensions	1,5 × 2 × 0,5 cm
Product Name	MAX30100 – Purple Heart Rate Sensor
Type	Optical Heart Rate and Pulse Oximeter Sensor
Model	MAX30100
Sensing Method	Reflective Optical Sensor (IR + Red LEDs)
Operating Voltage	1.8–3.3 V DC
Communication Interface	I²C
Sampling Rate	50–100 Hz (typical)
Measurement	Heart Rate, Blood Oxygen Saturation (SpO₂)
Operating Temperature	-40°C to +85°C
Package Type	Module with Sensor and PCB
Applications	Heart Rate Monitoring, Fitness Projects, Arduino / Raspberry Pi Projects, Wearable Health Devices
Package Contents	1× MAX30100 Purple Heart Rate Sensor Module