MAX30100 heart rate sensor module for ARDUINO

This module is a MAX30100 heart rate sensor that is designed to read heart rate or pulse oximetry. The sensor is widely used in medical devices for various purposes.

The module board is designed around the MAX30100 sensor and other accessories that ensure the correct operation of the sensor. The MAX30100 chip consists of two LEDs (red and infrared), a photodetector, an analog amplifier, an interface module, and a digital processor. The features of this sensor are: the presence of a low level of intrinsic noise and suppression of external illumination. Also, the microcircuit has a high sampling rate, resistance to vibration when taking readings and a reliable measurement process.

The MAX30100 chip is controlled using software registers. The sensor data is stored in the FIFO buffer. When measuring the pulse, red and IR channels are used. The sensor can change the temperature dependence of SpO2 measurements. The resolution of the temperature sensor is 0.0625 °C.

The module connects to the Arduino platform or other microcontroller devices using the I2C serial interface. Pin assignments:

GND: ground
RD: red LED driver
IRD: IR LED driver
INT: interrupts
SDA: data line
SCL: clock line
UIN: supply voltage
The LCD display can be used to visualize the sensor parameters. The screen is connected using pins: SCL and SDA.
To work with the module in the Arduino IDE development environment, you need to download the library, and then install it yourself.

Power is supplied from an external power supply, Arduino platform or other microcontroller device. The module supply voltage is 5 V.

Module Specifications:

Chip MAX30100
Supply voltage, V 5 (internal stabilizer)
Current consumption in measurement mode, mA 1.2
Current consumption in sleep mode, µA up to 10
I2C interface
Maximum interface frequency, kHz 400
Module dimensions, mm 18.5 x 14.4 x 3