Information about gold standard ECG devices:

Where can we find information about the gold standard for heart rate measurement which are 3 lead (or channel) ECG devices

Rob ter Horst could not convince us to use the Polar H10 or smartwatches for scientific studies. 3 channel ECG devices are better for this purpose. But these devices are expensive. Here the most affordable solution from which we think it is worth testing if it works.

• OpenBCI modules sold on eBay and Aliexpress are known to have issues.
• The known issues are packet loss and noise cycling with the WIFI shield
• Another known issue is the connector between OpenBCI Cyton and WIFI shield which is faulty, as reported by one user in the www.openbci.com forum.
• The cable version OpenBCI Ganglion modules sold on eBay and Aliexpress should not have these issues.
• But OpenBCI Ganglion cannot be connected over cable to the OpenBCI GUI, cable connection is not implemented in OpenBCI GUI, but we do not need urgently OpenBCI GUI.
• We can connect an OpenBCI Ganglion over cable to the GPIO pins of a Rasbperry Pi or an Orange Pi.
• Then we can for instance run the HeartPy software on our single board computer.
• Then we need to connect the corresponding GPIO pins of the SBC to the individual ECG channels of HeartPy.
• HeartPy is the Python Heart Rate Analysis Toolkit
• HeartPy can be used with PPG heart rate data, but also with ECG heart rate data.

correction: cable or wired version is not that easy, it is a lot of work:

OpenBCI wired version is a lot of work