The Programmable Chip EEG BCI

The downloads link should have the newest Eagle Cad board and schematic files & parts lists.

Amplifier & Common Signal Buffer

Amplifier & Common Signal Buffer Board Components

Amplifier_Common_Signal_Buffer

If you intend to build a PCEEG it is helpful to know how it comes together. The electrodes are placed on a person's head or sometimes one on a earlobe for a ground and the other on the head.

Then the signals from the electrodes travel to the high frequency filter this removes raido friequency noize picked up on the electode wires.
The instramentation amp amplifies the difference of the two electrodes and sends that as a driven signal to the analog to digital converter.

The downloads link should have the newest Eagle Cad board and schematic files & parts lists.
Design_Amp_Sch

Parts List

Refrence Designs & Ideas:

Open EEG mailing list
Modular EEG
Monolith EEG
Arduino
Boarduino

(Thanks modular eeg designers for this warning document.)

Made 2008/09/07
by Joshua Wojnas, the open source community, modular EEG, monolith EEG, Arduino, Boarduino & the design & designers of thowse projects.