Great instructable.Looking forward to more of Brain-Computer-Interface projects.
3D Printing Class
Hey,You'll have to refer the datasheet for MPU-6050 sensor.And I bought ADXL335 for around INR 350-400.
As I've already mentioned, it is to provide reference voltage of 3.3v. Although the module is powered by 5v but the output is only compatible to 3.3v.
DIY Glow 3D Printer