Notification-enabled Heart Rate Monitor using Photoplethysmography and Real-time Moving Averages

Heart Rate is a health parameter that is a fair indicator of the functioning of the human cardiovascular system. It is one of the most basic parameters utilised to assess basic human health. This paper explicates the development and usability of a comprehensive heart rate monitoring and notification relay system, based on a Microcontroller Unit. The non-invasive technique of photoplethysmography (PPG) has been used for measuring the heart rate (coupled with dynamic algorithms to reinforce accuracy) and the readings are transmitted via cloud-based applications to pre-designated entities for effective monitoring. A rudimentary analysis of the measured data is made accessible to the user in real-time to ensure actionable insights.