Electrocardiography is the process of recording the electrical activity of the heart. It is mostly used for diagnosing a wide variety of possible heart diseases, although there are other possible uses. The aim of this dissertation is to display the electrocardiogram and the heart rate on a screen. For this purpose we utilized an ECG board which uses three electrodes to acquire the electrocardiogram of the heart. There are two tasks running inside the operating system FreeRTOS. The first task contains an algorithm used for detecting the heart beat and measuring the time between the two heart beats. The second task is used to update the data displayed on the screen.
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