For my project I  have built and programmed a functioning health monitor. It consists of an Arduino microcomputing board, a pulse rate and oxygen content sensor, a temperature sensor and a few other parts to put everything together. The monitor should measure and show your heart rate in bpm, the blood oxygen saturation, and temperature of your body, all with a touch of the sensor. In my case, my product worked perfectly at some points, but at other times the pulse rate sensor stopped working. I had to contact the sensor company multiple times to get tech support, and we tried many different things to fix the situation, and I had to go through lots of trial and error to get the monitor to function properly, I l almost had to to buy a sensor which did not fit well with my purpose of making an affordable monitor. Even though my monitor only worked for short times (I have provided a video of how it should function), these steps are still accurate and can work better with a better sensor. This project gave me a great learning experience that I will never forget, and I know so many things about Arduino, sensors and coding.