Last Updated on September 12, 2022 by pg@petergamma.org

Since we are currently dealing with the topic how to stream sensor data from HRM sensors into an InfluxDB together with OpenBCI sensor data, we ask ourselves, why is it not possible to stream sensor data from several OpenBCI Cyton boards into one InfluxDB?

The answer from William Croft from OpenBCI:

«No, it is impossible, as I’ve said several times, with the current Cyton hardware. Investigate some other EEG amps that provide 19, 24 or 32 channels. ALL the channels must sample at the same moment in time. Otherwise many metrics such as phase, coherence, P300 sample averaging, etc., are meaningless.

The OpenBCI staff is currently devoting all engineering efforts towards the Galea headset. It’s remotely possible that another product may surface in the future with more channels. But I have not heard of it, though I have lobbied for such.»

https://openbci.com/forum/index.php?p=/discussion/174/larger-number-of-channels#latest

According to William Croft from OpenBCI it is not possible with the current Cyton hardware.

So a hardware change is necessary for this. This is highly desirable, and would make things much easier.

An OpenBCI Cyton board which is modified for InfluxDB applications as a building block for EEG devices with any number of channels?

This would be a revolution for EEG devices, and would reduce the costs for EEG devices with a large number of channels dramatically.