Abstract—This article introduces new and self-developed
software based on photoplethysmographic methods which
relies on the functions of the versatile, EDAQ530 sensor-to-
USB interface. It offers monitoring of not only raw data
obtained with finger photoplethysmography but also the
markers relevant in ECG analysis derived from this data
including instantaneous heart rate, heart rate variability
and more. It can monitor the effects of physical exercise,
stress, drugs over time, enabling us to perform exploratory
measurements before more extensive research, correct
measurements in real time or do demonstrations.
Since the program (http://www.gamfelektro.hu/plethysmo)
and the hardware documentation (http://www.inf.uszeged.
hu/noise/edudev/EDAQ530) are open source and
freely available, it has the potential of becoming a significant
tool in education and research.
