On hunt for better electrodes
After fixing EEG noise using software and fixing electrodes, the next step is to upgrade electrodes.
Once again, the text below is from Michal Oblastni:
I’ve also looked at the EEG-SMT electrodes themselves. Based on other EEG designs, I think they need a small hardware mod. One option is to add short, blunt pins that can grip the scalp better—even through hair. Here’s an example with gold pins:
These could replace the flat default electrodes.
Alternatively, I found some other compatible electrodes that are pretty cheap. I use the active ones from Olimex, which don’t need gel and include a built-in amplifier:
https://www.olimex.com/Products/EEG/Electrodes/EEG-AE/open-source-hardware
All it really takes is a soldering iron and a few basic parts. Even standard electrodes can work fine with EEG-SMT, since they just connect the scalp to the amplifier. As long as the signal path is preserved, we’re good.