MAX30102 Heart Rate and Pulse Oximeter Sensor Module
The MAX30102 is an integrated, high-sensitivity pulse oximetry and heart-rate monitor module perfect for wearable health and fitness projects. This compact module combines internal LEDs, photodetectors, optical elements, and low-noise electronics with advanced ambient light rejection. By offering a complete system solution, it significantly eases the design-in process for mobile devices, smartphones, and tablets.
Features
- Integrated Red and Infrared LEDs.
- Integrated Photodetector.
- Reflective PPG Measurement.
- Heart Rate and SpO₂ Sensing Capability.
- Ambient Light Rejection.
- I²C-Compatible Digital Interface.
- Programmable LED Current.
- Programmable Sample Rate.
- Up to 18-Bit ADC Resolution.
- 32-Sample FIFO.
- Active-Low Interrupt Output.
- Ultra-Low-Power Shutdown Mode.
- Integrated Die Temperature Sensor.
Specifications
| Parameter | Specification |
|---|---|
| Sensor IC: | MAX30102 |
| Module Type: | Heart Rate & Pulse Oximeter Sensor Module |
| Measurement Principle: | Reflective PPG |
| Module Supply Input (VIN): | 3.3V – 5V |
| MAX30102 Core Supply (VDD): | 1.8V |
| MAX30102 LED Supply (VLED+): | 3.3V |
| Communication Interface: | I²C |
| I²C Address: | 0x57 (7-bit) |
| Maximum I²C Clock: | 400kHz |
| ADC Resolution: | Up to 18-bit |
| Red LED Peak Wavelength: | 660nm |
| IR LED Peak Wavelength: | 880nm |
| FIFO: | 32 Samples |
| Shutdown Current: | 0.7µA |
| Operating Temperature: | -40°C to +85°C |
| Pins: | VIN, SCL, SDA, INT, IRD, RD, GND |
Pinout
| Pin Name | Function |
|---|---|
| VIN | Power supply pin (3.3V or 5V from Arduino) |
| SCL | I2C Clock Line – Connect to Arduino’s SCL pin |
| SDA | I2C Data Line – Connect to Arduino’s SDA pin |
| INT | Interrupt pin – Goes low when data is ready or on pulse detection |
| IRD | Activates IR LED for heart rate and SpO2 monitoring |
| RD | Activates Red LED – Used for SpO2 measurement |
| GND | Ground – Connect to Arduino’s ground |
Applications
- Wearable Devices.
- Fitness Assistant Devices.
- Smartphones and Tablets.
Package Content
- 1x MAX30102 Heart Rate and Pulse Oximeter Sensor Module
- 1x 7-pin Header
