Скачать или смотреть How to make Pulse Oximeter,Heart Rate with Arduino Uno R3, Max30102 sensor BPM,SpO2

It's about How to make Pulse Oximeter BPM,SpO2 using Max30102 sensor and the micro controller arduino uno r3,also for heart beats included buzzer ,and I2C LCD 16×2 , power supply 9Vdc ,and the software code done by the arduino software 1.8.19.

As you may notice, the MAX30102 IC lies at the center of the module. The module consists of two different types of LEDs (Red and IR) and a photodetector. Blood oxygen saturation and heart rate, and to find the blood oxygen concentration (%), it is first important to know that inside our blood, haemoglobin is responsible for carrying oxygen. When a person holds a pulse oximeter, light from the device passes through the blood in the fingers. This is used to detect the amount of oxygen by measuring the changes in light absorption in both oxygenated and deoxygenated blood.

As i already mentioned before, the MAX30102 sensor consists of two LEDs (Red and IR) and a photodiode. Both of these LEDs are used for SpO2 measurement. These two LEDs emit lights at different wavelengths, ~660nm for the red led and ~880nm for the IR LED. At these particular wavelengths, the oxygenated and deoxygenated haemoglobin have vastly different absorption properties.


The heartbeat rate is the ratio of time between two consecutive heartbeats. Similarly, when the human blood is circulated in the human body, then this blood is squeezed in capillary tissues. As a result, the volume of capillary tissues is increased, but this volume is decreased after each heartbeat. This change in volume of capillary tissues affects the infrared light of the sensor, which transmits light after each heartbeat.

The working of this sensor could be checked by placing a human finger in front of this sensor. When a finger is placed in front of this pulse sensor, then the reflection of infrared light is changed based on the volume of blood change inside capillary vessels. This means during the heartbeat, the volume of blood in capillary vessels will be high and then will be low after each heartbeat. So, by changing this volume, the LED light is changed. This change of the LED light measures the heartbeat rate of a finger. This phenomenon is known as “Photoplethysmogram.”


#Arduino_uno
#Max30102
#SpO2
#BPM
#heart_rate
#blood_oxegen_concentration
#LCD_I2C_16×2
#arduinoproject