Product Review

Heart-Rate Sensor Module, MAX30102 Blood Oxygen Sensor, Compatible with Arduino STM32

Parameters:
LED peak wavelength: 660nm/880nm
LED power supply voltage: 3.3~5v
Detection Signal Type: Optical Reflection Signal (PPG)
Output Signal Interface: I2C Interface
Communication Interface Voltage: 1.8 ~ 5V

Interface:
VIN: Main power input, 1.8V-2.5V
3-bit pad: I2C bus pull up level, you can choose 1.8V or 3.3V according to the pin master voltage.
SCL: I2C bus clock
SDA: connected to the I2C bus data
INT: MAX chip interrupt pin
RD: MAX30102 chip's RD LED grounding terminal, generally doesn't need to connect
IRD: MAX30102 chip's IR LED grounding terminal, generally doesn't need to connect
GND: grounding wire

Package Including:
1 * High-Sensitivity Heart-Rate Sensor Module