We designed a portable device to measure blood pressure and heart rate, addressing the need for affordable health monitoring. High or low blood pressure and irregular heart rate often indicate underlying health problems, yet current monitoring devices are bulky and expensive. Our goal was to create a smaller, lighter, and more affordable alternative that enables users to take control of their health through accessible vital sign tracking. We developed a device that captured and measured cuff pressure and arterial vibrations as blood flowed through the artery. We used a pressure sensor to convert the cuff pressure and vibrations into analog voltage signals. The microcontroller read these analog signals and calculated the user’s blood pressure and heart rate, then displayed the results on a liquid crystal display (LCD) screen.
Through these efforts, we created a wearable medical device that complies with global safety standards. The device accurately measures and displays blood pressure in an easily readable format. These results demonstrate promise in this technology. With further research, this technology could provide greater accessibility to those unable to meet with a care provider due to various reasons.
