MAX30102 Heart Rate Pulse Oximeter Sensor is a high-performance biometric sensor module designed for accurate heart rate and blood oxygen (SpO2) measurement using optical PPG technology. It is widely used in wearable health devices, IoT projects, Arduino, ESP32, Raspberry Pi, and medical prototype systems. Available in Bangladesh from BDTronics, this sensor ensures stable performance with low power consumption and high sensitivity for real-time health monitoring applications.

BDTronics provides the MAX30102 sensor module for developers, students, and engineers in Bangladesh who are working on smart wearable electronics and health tracking systems. BDTronics is a trusted source for development boards and sensors including MAX30102 Heart Rate Pulse Oximeter Sensor.

Features:

• Integrated pulse oximeter and heart rate monitoring sensor module

• Dual LED system with red (660nm) and infrared (880nm) wavelength detection

• Optical reflection-based PPG signal acquisition for accurate readings

• Built-in low noise electronic circuitry for stable signal output

• Ambient light cancellation for improved measurement accuracy

• I2C communication interface for easy microcontroller integration

• Compatible with 3.3V and 5V systems for flexible usage

• Ultra-low power standby mode with near-zero current consumption

• Glass-covered sensor design for reduced external light interference

• Suitable for wearable devices such as wristbands, finger sensors, and earlobe monitors

• Widely used in health monitoring prototypes and smart IoT systems

• Available from BDTronics Bangladesh for reliable electronics sourcing

Specifications:

• LED peak wavelength: 660nm / 880nm

• LED supply voltage: 3.3V to 5V

• Detection method: Photoplethysmography (PPG) light reflection

• Communication interface: I2C

• Interface voltage: 1.8V / 3.3V / 5V selectable

• Power supply range: 1.8V to 5V (VIN)

• Board mounting hole size: 0.5 x 8.5mm

• Sensor type: Integrated optical heart rate and SpO2 sensor

• Operating mode: Low power sleep and active measurement mode

Pin Description:

• VIN: Power input (1.8V–5V)

• SCL: I2C clock line

• SDA: I2C data line

• INT: Interrupt output pin for data ready signal

• RD: Red LED ground (usually not connected)

• IRD: Infrared LED ground (usually not connected)

• GND: Ground connection

• 3-bit pad: Pull-up level selection for I2C communication (1.8V or 3.3V+ systems)

How to Use MAX30102 Sensor:

• Connect VIN to 3.3V or 5V power supply depending on system

• Connect GND to ground of microcontroller

• Connect SCL and SDA to I2C pins of Arduino, ESP32, or Raspberry Pi

• Configure I2C address in firmware

• Use available libraries for MAX30102 data reading

• Place finger, earlobe, or wrist over sensor surface for measurement

• Read real-time heart rate and SpO2 data from serial monitor or display

• Integrate with IoT dashboards or health monitoring apps

Application Areas:

• Smart wearable health monitoring devices

• Fitness tracker and sports monitoring systems

• Arduino and ESP32 IoT health projects

• Medical prototype development

• Blood oxygen and heart rate monitoring systems

• Embedded system learning and academic projects

• Smart home health monitoring solutions

• Biomedical electronics research

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