I once worked in a company that sells health-care devices and I've knowledge of how blood pressure monitors work. In this project I will use a micro pressure sensor to detect Korotkoff sounds, which will help me to calculate systolic (maximum) and diastolic (minimum) blood pressure. There is another method called the oscillometric and I will not use it because I don't have enough hardware and time to finish it. However the oscillometric method is based on the Korotkoff sounds and each manufacturer develops its own mathematical algorithm to find systolic and diastolic pressures. Reference: https://www.nature.com/articles/s41371-019-0196-9

I can tell you that the project that was made with GNAT Programming Studio is my own and my creativity (source code, schematic diagram and flowchart). For the rest, I used and modified the arduino demo code from the pressure sensor manufacturer, and the code to send the test data to excel. Let's get started with the list of necessary hardware.