Since Peter Gamma from www.petergamma.org started reviewing, countless EEG devices and EEG caps where offered in web. Especially since we talked to Krisztian Hofstädter in the www.openbci.com forum: We where looking for 32 channel EEG devices. And then suddenly we found one on Aliexpress for 600 USD which is based on the ADS1299 EEG chip …