Fermion: MAX30102 PPG Heart Rate and Oximeter Sensor (Breakout, I2C/UART)
MAX30102-based PPG breakout for heart rate and SpO2 estimation via I2C or UART. Not validated for medical diagnosis; suitable for hobbyist health-monitoring projects.
Pinout
- VCC
3.3V power supply (breakout module regulates to 1.8V core internally)
Type · PowerVoltage · 3.3V - 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 · GPIO
| Pin | Type | Function | Voltage |
|---|---|---|---|
| VCC | Power | 3.3V power supply (breakout module regulates to 1.8V core internally) | 3.3V |
| GND | Ground | Ground reference | |
| SDA | I2C | I2C data line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board) | |
| SCL | I2C | I2C clock line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board) | |
| INT | GPIO | Active-low interrupt output; signals FIFO threshold, data ready, proximity detection events |
Pin details
5 connections- VCC
3.3V power supply (breakout module regulates to 1.8V core internally)
PowerVoltage · 3.3V - GND
Ground reference
Ground - SDA
I2C data line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board)
I2C - SCL
I2C clock line; 4.7kΩ pull-up to 3.3V required (typically included on breakout board)
I2C - INT
Active-low interrupt output; signals FIFO threshold, data ready, proximity detection events
GPIO
Start wiring
UART · I2C · Analog · 3.3 – 5 V · Breakout
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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