Gravity: MAX30102 Heart Rate and Oximeter Sensor

The DFRobot Gravity MAX30102 heart rate and blood oxygen sensor module integrates the Maxim MAX30102 chip and an MCU with heart rate and blood oxygen algorithm.

The MAX30102 uses PPG (PhotoPlethysmoGraphy) to measure data, which will be converted into heart rate and oximetry values when processed by the MCU, then output through I2C or UART, making the sensor easy to use and greatly reducing resource occupation of the main controller.

Note:

• The pressure may change when the finger is directly pressed down the sensor, which will affect the data output. Please try to fix the sensor on your finger using the provided strap
• When wearing the sensor on your finger, there is no difference in the direction of your finger
• This product is not a professional medical instrument and should not be used as an auxiliary accessory in diagnosis and treatment

Connection Examples

Raspberry Pi

Arduino

Features

• Heart rate and blood oxygen sensor
• Microcontroller with algorithm integrated
• Data can be read directly through a host computer

Specifications

• Power Supply Voltage: 3.3V/5V
• Working Current: <15mA
• Communication Method: I2C/UART
• I2C Address: 0x57
• Serial Port Baud Rate: 9600
• Operating Temperature Range: -40℃~85℃
• Product Size: 25.5×32mm

Package Contents

• 1x Gravity: MAX30102 Heart Rate and Oximeter Sensor
• 1x Gravity 4-pin I2C/UART Sensor Connector
• 1x Strap

Resources

• Product wiki
• Schematics
• Dimension
• MAX30102 Datasheet

Pinout

Pin	Label	Description
1	D/T	I2C Data Line/TX
2	C/T	I2C Clock Line/RX
3	GND	Power –
4	VCC	Power +