Development of an electrocardiograph prototype for educational purposes

This paper presents the design and the development of an electrocardiograph prototype with an interface based in a heart animation for educational purposes. The research main features is to prove the potential for opening possibilities to design and to create laboratory practices in subjects such as biophysics, animal physiology and human physiology. The system is composed of an analog circuit that retrieves and amplifies the signals received from the body to enable further processing using three electrodes of silver chloride (AgCI). We present a bioexperiment acquiring the electrocardiogram (ECG) signal using a computer, Arduino and Matlab by three central derivations. The presented result is from a student of a group of fifteen people, this shows that the basic records allow the analysis of the QRS complex of a cardiac cycle as well as the frequency during different conditions, such as rigorous exercise and resting state.