Peter Gamma from www.petergamma.org has published here the basic instruction how to build a 32 channel EEG device from PiEEG. https://petergamma.org/tag/pi-eeg/ Such a device has the basic specifications of a g.tec multi-purpose EEG setup with 32 channels which costs 50 000 USD: If Peter Gamma from www.petergamma.org would update these papers of Indonesian researchers: with …