Description

MAX30102 Heart Rate and Pulse Oximeter Sensor

•  MAX30102 blood oxygen concentration sensor.
•  An integrated pulse oximeter and heart rate monitor biosensor module.
•   It uses an 18V power supply and an independent 50V power supply for internal LEDs, which are used in wearable devices for heart rate and blood oxygen collection and detection.

Feature:

•  It uses a standard 12C compatible communication interface,and can transmit the collected values to the single-chip computer for heart rate and blood oxygen calculation.
• It can effectively eliminate the external and internal light resistance and has reliable performance.
• It can shut down the module through software,the standby current is close to zero,and the power supply can always maintain the power supply state.
• It integrates a red LED and an infrared LED,photo detectors,optical devices,and low-noise electronic circuits with ambient light suppression.
• In addition, the chip can also turn off the module via software, the standby current is almost zero and the power supply is always maintained.
• Due to its excellent performance, the chip is widely used in Samsung Galaxy S series mobile phones.Compared with the previous generation MAX30100, the chip integrates a glass cover to effectively eliminate external and internal light interference and has the best reliable performance.
• Light-dissolving method: measuring the pulse and blood oxygen saturation by using human tissue to cause a different transmission when the blood vessel beats;
• Light source: a specific wavelength of light-emitting diodes, selective for oxyhemoglobin (H bO 2) and hemoglobin (Hb) in arterial blood;
• The transmission is converted into an electrical signal: the change in the volume of the arterial pulsation causes a change in the transmission of light.
• At this time, the photoelectric variator receives the reflected light from the human tissue, converts it into an electrical signal and amplifies and outputs it. 

  Parameter:

• Product Name:MAX30102 Blood Oxygen Concentration Sensor
• Working Voltage:1.8V~5V
• LED peak Wavelength:660nm/880nm
• Detection Signal Type:optical reflection signal (PPG)
• Communication Interface:12C interface
• Work Temperature:-25?~85?
• Work Humidity:5%~95%RH

Pin Description:

• VIN:positive
• GND:negative electrode
• SCL:12C serial clock line
• SDA:12C serial data line
• INT:Interrupt pin
• RD (Blackboard):RED LED ground terminal of MAX30102 chip
• IRD (Blackboard):IR LED ground terminal of MAX30102 chip 

How does the max 30102 pulse oximeter work?

• When the heart pumps blood, there is an increase in oxygenated blood as a result of having more blood. As the heart relaxes, the volume of oxygenated blood also decreases. By knowing the time between the increase and decrease of oxygenated blood, the pulse rate is determined. 

• It turns out, oxygenated blood absorbs more infrared light and passes more red light while deoxygenated blood absorbs red light and passes more infrared light. This is the main function of the MAX30102: it reads the absorption levels for both light sources and store them in a buffer that can be read via I2C.

  MAX30102 heart rate and pulse oximeter sensor datasheet.Detailed tutorial on how to use MAX30102 with arduino and output results on OLED.Tutorial on using the max30102 with arduino unoExcellent explaination on how the pulse oximeter sensor works   Package Included:

• 1 X MAX30102 Blood Oxygen Concentration Sensor