ESP8266/ESP32 WiFi ECG, Testing on a real patient

ESP8266 WiFi ECG, Testing on a real patient

I tested the "ESP32/ESP8266 WiFi ECG Monitor" project on myself. The project is an Arduino source code for ESP8266/ESP32 WiFi modules and MAX30100 oximeter module. The program analyses the received infrared and red LEDs data and shows the result in a nice Web UI/application.

I got infected by Covid again (for the 4th time) and decided to do this test. Though I rarely go outside and use the face-mask, but in where I live, there's no Covid restrictions and people are supposed to use only outdated Chinese vaccines with a national brand.

Anyway, The first value (green) is my heart-rate per minute. I was resting on the bed during the test but that's a bit higher than normal.

The second value (purple) is my blood pressure. The accurate blood pressure must be measured by the arm "sphygmomanometers", but in my project it's measured by the finger tip oximeter module (MAX30100).

So to be honest, you should not expect an accurate value. However the measured value is almost correct, and yes my blood pressure is a bit low though I think I should increase the diastolic offset.

The third value (Blue) is the saturation percent of oxygen in my blood. In the first days my SPO2 was 97-98, but after a few days it decreased to 95-96. Now I'm OK.

And the fourth value (yellow) is my finger's tip temperature. My hands and fingers usually are cold, before this measurement I warmed my hands enough. When your finger tip temperature is between 32-36 Celsius degree, you'll receive the most accurate values.

I double tested the values with the standard devices and the values are correct, but as I mentioned in the manual files and articles, this project is just an entertainment and do not medical use.

The projects are available in the following links:

ESP32-MAX30100 WiFi ECG Monitor (HeartRate/Blood Pressure/Oximeter/Temperature Diagram) Arduino Source Code- Rev 1.1

ESP8266/NodeMCU-MAX30100 WiFi ECG Monitor (HeartRate/Blood Pressure/Oximeter/Temperature Diagram) Arduino Source Code- Rev 1.1