Project #28 – Sensors – MAX30102 PPG Sensor – Mk21

Web

https://www.donluc.com/?p=4641

Facebook

https://www.facebook.com/share/v/1D78aX3Rk4/

YouTube

https://youtu.be/d-Jo6_4NsuQ

DFRobot

https://learn.dfrobot.com/makelog-315085.html

Hackster

https://www.hackster.io/luc-paquin/project-28-sensors-max30102-ppg-sensor-mk21-31dab1

#DonLucElectronics #DonLuc #MAX30102PPG  #FireBeetle2ESP32E #ESP32 #DFRobot #Display #IoT #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

Photoplethysmography

A PPG sensor is a non-invasive optical device that uses light (usually LEDs) and a photodetector to measure changes in blood volume in tissues, commonly used in wearables for monitoring heart rate, oxygen saturation (SpO2), and respiration by detecting fluctuations in light absorption or reflection as blood pumps through vessels. These sensors are cost-effective and popular in smartwatches and fitness trackers, working by shining light into the skin and analyzing how much light returns, which varies with each heartbeat. 

Gravity: MAX30102 PPG Heart Rate and Oximeter Sensor

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 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. The pressure may change when the finger is directly pressed down the sensor, which will affect the data output. So please try to fix the sensor on your finger. Wear the sensor on your finger and there is no difference in the direction of wearing.

DL2512Mk03

1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 3.5” 480x320 TFT LCD Capacitive
1 x GDL Line 10 CM
1 x Gravity: IO Shield for FireBeetle 2
1 x Terminal Block Board for FireBeetle 2 ESP32-E IoT
1 x Gravity: MAX30102 PPG Heart Rate and Oximeter Sensor
1 x Lithium Ion Battery - 1000mAh
1 x USB 3.0 to Type-C Cable

DL2512Mk03p

DL2512Mk03p.ino
getDisplay.ino
getEEPROM.ino
getPPG.ino
setup.ino

People can contact us: http://www.donluc.com/?page_id=1927

Consultant, R&D, Electronics, IoT, Teacher and Instructor

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Luc Paquin – Curriculum Vitae - 2025
https://www.donluc.com/luc/

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