#OpenScience #OpenTeaching community,
yesterday, for the beginning of the exam season, I gave a lecture on stress management. To demo Respiratory Sinus Arrhythmia, I built a little tool to show real-time ECG + heart rate from a Polar H10 in the lecture hall.
Students could see how breathing affects heart rate. The "aha!" moments were amazing : )
It now records and is available as FOSS:
https://github.com/RGreinacher/polar-h10-ecg-viewer

