Re: Newbie Questions

Hello Group!
I'm happy to see some activity here!
I may have posted before that my interest is the Phi energy distributions
that Dan Winter (brain tuner) measured at peak consciousness (bliss)
states. Dan says he is happy to help make it happen!
I have invested in some hardware (2 channel Olimex) before but wasn't happy
about the support in the available Software frameworks (didn't get it to
work).
If the intent to build it all from scratch counts I am happy that I have
recently discovered how easy Arduino based boards are to program and
operate! I also investigated the STM32 Arm Maple boards, but considering
that the most effort of the measuring hardware currently is just to measure
and transfer the (relatively low sample rate) data to the PC even the Nano
should be plenty?
What makes me more curious is how to be as little as possible electrically
invasive! I just ordered some DC-DC converters and I already have gotten
optocuplers so I imagine to use one Nano for the USB interface and one
electrically isolated one for the actual measurements!
So far it appears to me that all the component would still cost less than
20€ and Nanos for example I think have at least 8 channels of 12 Bit ADC?
Don't know yet how to run a Serial interface over optocuples but it
shouldn't be so difficult

Anyhow thanks everybody for reviving the discussion here, may it lead to
something interesting!

Cheers
Tobias


On Wed, Aug 12, 2015 at 10:17 AM, Jake Stewart <[email protected]> wrote:

> OpenBCI is a decent platform to base something on, but there are a few
> flaws.  It's bandwidth is severely hobbled by the crap bluetooth dongle
> they used in the design.  It also has a fair bit of useless hardware, like
> the accelerometer and SD card.  The 8-bit board's Atmega processor is
> popular but old and underpowered.  The 32-bit board uses some oddball PIC
> processor.
>
> That last comment would be the problem I also see in the EEG64 project.
> It uses an oddball 16-bit processor.  We really need to base things around
> popular, market leading processors that are readily available in mass
> quanity for cheap.
>
> I need a high performance system with a low per-channel cost so I’ve
> looked at the cheapest high performance options.
> STM32F103C8 boards are available for about $4.75 and would be, by far, the
> best price/performance board readily available.  Arduino Nano USB boards
> are only about $2.50 and are by far the most popular, but I think it would
> be a mistake to base anything new around such an old 8-bit processor.
>
> I'm currently looking at creating an EEG board using an ESP8266 module.
> This would be the cheapest solution of all, with a $3-4 ESP8266 module
> handling both the SPI data and wifi connection.  It remains to be seen how
> many channels the 8266 can handle while maintaining the wifi link.
>
> -Jake
>
> *Sent:* Sunday, June 28, 2015 at 2:22 AM
> *From:* "Martin Molina" <[email protected]>
> *To:* [email protected]
> *Subject:* Re: [Openeeg-list] Newbie Questions
> Looks like John Ruelas is on the ball. I would like to suggest that we
> rally behind the www.EEG64.com project so that the open source community
> truly has an up to date eeg platform. Once it's functionality is tested and
> confirmed, then attention can turned towards the refinement of non-contact
> or dry active electrodes.
>
> Thoughts?
>
> Martín
>
>
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-- 
„Jetzt war der Augenblick gekommen wo wir denken mussten. Der Augenblick wo
wir aufspringen und entscheiden mußten, wenn wir nicht allmählich so
vergiftet werden wollten, daß wir blind die Plätze einnahmen, die uns im
führerlosen Zug der Älteren angeboten wurden.“
Aus dem ersten Kapitel von 'Fatu Hiva - Zurück zur Natur' von Thor Heyerdahl
-------------------------------------

Tobias Gogolin
Tel. D1 (49) 0151 5187 5210
Tel. D2 (49) 0152 0839 5060
skype: moontogo

You develop Sustainable Ranch Technology at
http://tech.groups.yahoo.com/group/SURA-TECH
an Open Source Electric Motor/Alternator at
http://groups.yahoo.com/group/Performance_Axial_Flux
and an Open Source Motor Controller at http://groups.yahoo.com/group/GoBox

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