design and implementation of ecg signal extraction and processing system for the diagnosis of cardiac arrhythmia

The main purpose of this article is to design a hardware and an android application to diagnose cardiac arrhythmia at the lowest cost. in this method, the electrical signals of the heartbeat, which is the so-called ecg, are observed, and also the software has the ability to process the signals and diagnose several types of heart disease, including arrhythmia. ecg devices are very expensive and are always available in specialized laboratories and hospitals, but by designing and manufacturing this device, a person can easily take an ecg at home or anywhere, and the software acts like a doctor. and report being healthy or showing signs of illness. the proposed scheme accurately identifies an arrhythmia.