Implementation of Low-cost Portable ECG Monitoring System

Hun Choi, Jinseok Seo

In this paper, we propose a portable electrocardiogram monitoring system using MCU (Cortex-M4, STM21F407VGT6) and smartphone. In the proposed method, we designed and implemented various amplifiers for ensuring the reliability of the user's electrocardiogram data and an analog filter for noise elimination to remove various additive noises generated during acquisition. We also developed APP for smartphone to display the measured electrocardiogram data in a user - friendly manner, presented real - time electrocardiogram and heart rate to users, and provided health information to cope with emergencies.