The Usage of the BCI Keyboard (37×40 cm):

Patient focuses his/her attention on a character/display on the BCI Keyboard (BCIKey).

The microcontroller of the BCIKey acquires the EEG data during focusing. The EEG data

and synchronization signals are sent to the PC or mobile phone by the microcontroller.

The PC or mobile phone processes the EEG data. The decision is sent to the BCIKey by

using the UART or the bluetooth module of the PC (or mobile phone). To inform the patient,

BCIKey flashes once the display related to the decision.

-----------------------------------------------------------------------

System Properties of the Prototype BCIKey:

i) The BCIKey contains 10 numeric and 30 alphabetic characters.

ii) The BCIKey contains a couple of active electrodes to get the EEG data.

iii) A microcontroller is used to send the EEG data / synchronization signals into the PC

(or mobile phone) and to receive the decision from the PC (or mobile phone) by using

the UART or bluetooth module.

iv) Each display flickers at different frequencies more than once. The microcontroller

also controls the frequencies of each display.

v) The BCIKey also contains acoustic stimuli to develop new applications in the future.

------------------------------------------------------------------------

Figures:

1. The front view of the BCIKey System

2. The back view of the BCIKey System