Who wants to spend his whole lifetime validating sports sensor devices?

What for us personally is interesting: 1. 3 lead ECG OpenBCI open source heart rate monitors 2. HeartPy, Python Heart Rate Analysis Toolkit for PPG and noisy and very noisy ECG signals 3. DF Robot PPG modules 4. The data logger which we have introduced: 5. Sports sensor devices are heavily developed and tested, but …