A nodejs module for parsing binary data for Mindset/Mindwave headsets by Neurosky. A caveat to notice: at the very moment I havn't implemented dynamical device recognition, thus the initial device's ID (tty.MindWaveMobile-DevA) has been hardcoded. Use ls /dev/tty.* (Mac os) to figure out your certain device's ID and substitute it.
Please, familiarise yourself also with my Twimpress project has been made on top of this parser and representing a basic visualization of headset's data, so thus might happen be a good part for bootstrapping your further javascript-based application.