• D.SWATHI
• V S D REKHA

This paper describes the design and process of portable microcontroller based heart-rate counting system for monitoring heart condition in a low cost that can be implemented with the-shelf components. The raw heart-rate signals were collected from finger using Infrared Transmitter and Receiver pair module which was amplified in order to convert them to an observable scale. Extending the concept we have replaced Arduino board with NODE MCU. In this extension we have used Thing Speak and created a private channel. In that channel updating of heart rate at regular intervals is done. If it crosses a particular limit or threshold limit it will be send to a concern doctor. This technique can be used in remote areas. The results obtained using this device when compared from the manual test involving counting of heart rate was found satisfactory. The system discussed in this paper is applicable for family, hospital, clinic, community medical treatment, sports healthcare and other medical purposes.

NodeMCU, Thing speak, Pulse Sensor

" Heart-Rate Monitoring System Using Node MCU", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.116-120, April-2019, Available :http://www.jetir.org/papers/JETIR1904317.pdf

" Heart-Rate Monitoring System Using Node MCU", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp116-120, April-2019, Available at : http://www.jetir.org/papers/JETIR1904317.pdf