Begin by opening the Mindflex on the side with the switch. Drill a small hole to allow two wires in, and soldier them as shown. You can use the Dupont pin headers mentioned above for a slick connection to your Arduino. Note: After completing connections, seal the hole with silicone or Goop brand glue.
Close and replace the screws on your Mindflex headset. Attach your Arduino board to the Mindflex as show being careful not to cover the Mindflex power on led. To attach, use a blob of a flexible glue like Silicon or Goop brand glue and clamp overnight. Last, connect the wire coming from the Mindflex "T" connection to the Arduino board's "RX" plug, and the wire coming from the Mindflex ground to any Arduino Gnd pin.
Amazingly, this completes electrical assembly! Congratulations!
You will need 4 pieces of software to get your brainwave analyzer up and running:
1.) The Arduino IDE (So that you can program your Arduino from your computer).
2.) The "Brain Library" (Which has the programs we'll upload to your Arduino).
3.) "Processing" (which will run the graphing program on your computer).
4.) "Brain Grapher" (which runs inside processing, and draws your brainwaves on screen).
Note: I've been very frustrated when building projects of this type to find that code available from online resources has changed between the time the project was written up, and the time I tried to build it. This has sometimes made projects I spent huge amounts of time on unworkable!
Therefore, I'm going to include one big zip file at the end of this document with all the software I actually used which is tested and known to work.
I would recommend trying the links to the original authors below first, in case improvements have been made, but if problems occur, feel free to download the zip file and use my proven backups!
I am anti your frustration, and pro your success!!!