ECG circuit with wireless transmission

During the IELS2003 course our class got an introduction to PCB design as well as knowledge about how component choices impact the circuit design. We created a heart rate monitor/ECG monitor that wirelessly transmits heart rate measurements to a website. Through two iterations and testing, I managed to create a design that best fit the given requirements for the course. This PCB was made with through-hole components soldered by us and designed in Altium. It was a fun challenge to learn Altium, as it had some of the design workflow elements that I was used to, but it is also a robust program that is capable of much more than the simple features I had previously learned. It didn’t take too long for me to pass that initial learning curve, and after that the program was rather enjoyable to work with. I like the red PCB with the silkscreen heart, I thought it was a fun addition to add to an ECG monitor. I also added a LED connected to the ESP32 that I programmed to pulsate in the heart rate of the user, which I also liked a lot!