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ECG Logger Viewer is the application software for ECG Logger device.
...The ECG Logger project is aimed for providing a very low-cost open-source "Hardware and Software" for a Cardiac Rhythmic Holter. The hardware has been made very simple and is based on an Arduino Nano micro-controller with two companion boards for the SD card mass-storage and the instrumentation differential amplifier. It can help monitoring arrhythmia syndromes such as bradycardia, tachycardia, extra-systoles or pause.
WARNING:
In no case it can be use to replace a professional medical examination.
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see also :
ECG Logger hardware : https://sourceforge.net/p/ecg-logger