Last Updated on March 5, 2024 by pg@petergamma.org
Krisztián Hofstädter showed this demo in the OpenBCI forum in 2018:
https://openbci.com/forum/index.php?p=/discussion/1663/greentek-gelfree-s-eeg-cap/p1
Here is EEG setup which he showed on 20.11.2018 on his YouTube channel:
Picture potentially taken before the OpenBCI EEG heatset training:
Picture potentially taken after the OpenBCI EEG heatset training: