IoT based pulse rate monitor powered with energy harvester

Systems for remotely monitoring patients are useful because they can deliver prompt and efficient medical care. Wearable sensor technologies that are highly developed and precise are typically utilized to facilitate internet telemedicine. Vital sign metrics including pulse rate, blood oxygen, blood pressure, respiration rate, and temperature of the body can all be monitored with the current generation of wearable, connected gadgets. The main issue with wearable technology is that it requires a lot of power to transmit signals. This means that regular battery changes are necessary, which severely restricts the ability to continuously monitor important data. In order to get around this, the present research offers a main report on tracking vital human indicators by measuring the kinetic energy of ordinary human activity. The energy that is captured is utilized to keep wearable devices’ batteries charged, extending the time that important data may be monitored. Based on a microcontroller (ATMega328) and a Wi-Fi device (ESP8266), this study suggests a stress- or exercise-monitoring gadget that allows real-time pulse rate monitoring in the cloud during regular daily activities. The harvester has a small, lightweight design. Experiments are conducted to demonstrate the output power generated by the proposed harvester and IoT server is used to show the pulse rate variability of a person in walking scenarios.