• A bit of a problem..

    Richard Feynman • 08/21/2014 at 06:44 • 0 comments

    Sadness strikes. I think there is something wrong with the way I placed the parts on the breadboard. I am getting useless data when I read the output on a scope. I am using temporary diy electrodes because I do not like waiting so I really hope the cheap electrodes are part of the problem. I shall redo the breadboard design.. and upload schematics of everything done so far as well! Better luck next log. 

  • Parts are here!

    Richard Feynman • 08/21/2014 at 06:41 • 0 comments

    Mid August
    Parts had arrived. Super excited 
    I already placed a prototype of breadboard. Really messy for now. Its only a prototype for neatness isn't the biggest priority right now. I have yet to test it because I am waiting on electrodes. Hopefully all goes well!

  • Parts and design

    Richard Feynman • 08/21/2014 at 06:12 • 0 comments

    Early August

    Basic schematics where drawn up. Since I basically know what I will use I know what I should buy soon so I can have the parts arrive asap to build a prototype.
    Bill of materials includes:
    Whole bunch of resistors and capacitors
    INA126
    TNA084
    atmega328P
    and other little things.

  • Knowledge first

    Richard Feynman • 08/21/2014 at 05:34 • 0 comments

    I kept some project logs on paper I'm transferring the ones I have so far.
    Late July.
    At this point I knew little about how EEGs,the heart of my project, work. After looking around and researching I finally grasp the basic concept. Reading lots on filter theory and Fourier transform helped me understand what I am about to undergo. After a week or so of research I felt like I knew enough of Fourier transforms implement it in my project. So far I know what I want to do in mind and also how I am going to implement it. Instrumentation Amplifier -> active filters -> micro controller to do FFT ->Bluetooth.