EEG - bluetooth - to SC

[tedor2]

Dear Reader,

I wonder whether someone could give me a tip, how to get receive a raw data signal (from an EEG - http://www.ibva.co.uk/) in SC?

I received a Max/Msp external, but the object already distinguishes the sidebands (using FFT). As I received an Xcode package with it I started to get familiar with coding externals.

My goal is to get the raw data, so I can use different filters on it. (Like here: http://cmr.soc.plymouth.ac.uk/publications.htm)

Please let me know if I should try working on SC on this EEG issue.

All the best,
Krisztian

[dewdrop_world]

I can't find anything specific to bluetooth and SC. But, I searched for bluetooth and HID (one of the ways SC can receive information) and it looked to me like certain bluetooth devices present themselves to the OS as HID units, which SC could read.

I can't see on ibva's website how the device presents itself. Maybe talk to ibva to find out what kind of access protocols are available?

James

[joshp]

Actually... SerialPort will find Bluetooth devices. I use it to connect to the SHAKE device. Once you register your EEG with your computer's Blutetooth browser, you will find it listed under the devices that SerialPort finds.

Best,

josh

[tedor2]

hi guys,
thank you for the responses, I am going to investigate these options asap:)
all the best.

krisztian

[tedor2]

ok...

I think I could set up the device :
(
p = SerialPort(
   "/dev/tty.BlueVAS_H-Data-1",
   baudrate: 230400,
   crtscts: true);
)

was not difficult, but the help file gives me only one command I can use:

p.next;         

This gives me random (I guess depending on the EEG data) numbers.

How is it possible to make this numbers into wave.... So I could use scope for instance to see the actual brainwave pattern?

Any help appreciated!
all the best,

Krisztian