Heart Pulse Monitoring Sensor With Notification Using Arduino

Abstract

The rapid advancement of healthcare technology has significantly increased the demand for continuous and real-time health monitoring systems. Cardiovascular diseases remain one of the leading causes of mortality worldwide, making heart rate monitoring a critical component of preventive healthcare. Conventional heart rate monitoring systems such as electrocardiograms (ECG) and hospital-based diagnostic devices are often expensive, bulky, and unsuitable for continuous personal monitoring. To address these limitations, this research presents the design and implementation of a low-cost, portable, and IoT-enabled Heart Pulse Monitoring and Notification System using the Arduino IDE development platform and the ESP8266 NodeMCU microcontroller.

The proposed system utilizes a photoplethysmography-based pulse sensor to detect blood volume changes and calculate Beats Per Minute (BPM). The measured data is displayed locally on an OLED screen and transmitted wirelessly to the Blynk cloud platform for remote monitoring. In abnormal conditions, such as tachycardia or bradycardia, automated email alerts are generated to notify caregivers or medical personnel. The system is optimized for low power consumption and compact design, making it suitable for wearable applications and remote healthcare monitoring. Experimental results demonstrate reliable real-time monitoring and effective alert generation, highlighting the feasibility of integrating embedded systems and IoT technologies in affordable healthcare solutions.