MAX30102

High-sensitivity pulse oximeter and heart-rate sensor by Analog Devices (Maxim). Measures SpO2 and heart rate via PPG (photoplethysmography) using integrated red and IR LEDs with photodetector. Communicates over I2C at fixed 7-bit address 0x57.

VCC
3.3V power supply (breakout module regulates to 1.8V core internally)
Type · powerVoltage · 3.3
GND
Ground reference
Type · ground
SDA
I2C data line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board)
Type · i2c
SCL
I2C clock line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board)
Type · i2c
INT
Active-low interrupt output; signals FIFO threshold, data ready, proximity detection events
Type · digital

Start wiring

I2C · 3.3

Confirm the data interface matches your host board.

Module pins: VCC, GND, SDA, SCL. Schematik maps them to your board in the app.

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