From: yaniv_vi (yaniv_vi_at_yahoo.com)
Date: 2002-05-26 10:20:00
--- In buildcheapeeg_at_yahoogroups.com, "sleeper75se" <sleeper75se_at_yahoo.se> wrote:
> Hi Yaniv, and everybody else.
>
> Sorry about the delay... some unrelated things got in the way, but
> here we go.
>
> I just uploaded the schematics and layouts and things to the files
> section (under Files/Hardware design/CheapEEG) at Yahoogroups. Feel
> free to copy it to the openeeg site at Sourceforge (btw, I've
> forgotten my password to the home page (not to source forge
itself) -
> can you help me with that?)
>
> A couple of notes:
>
> I'm using an ATtiny15L AVR microcontroller. It costs about $4 - $6
> less than an AT90S4433 (used in the ModularEEG). It would actually
> make more sense to use an AT90S4433, but keeping the cost down was
> the priority.
>
> Costs:
> Parts that go on the PCB: about $60
> Factory made PCB: $30 (Home-made: $5)
> You will also need some copper plates (to make shielding from), a
> plastic box, two 9V batteries, (battery charger), cables,
connectors,
> electrodes and various bits and pieces (copper wire, on/off switch
> etc...) I'm not sure how much these things cost, but probably no
more
> than another $60.
>
> Total: $150. I honestly don't think you can get below that unless
you
> start volume production or something.
>
> Ok, anyone interested? Questions or comments?
>
> Regards,
>
> Andreas
hi
cool . the numbers sound great . it sound that at the moment we can
offer a real low cost machine ( at least for anybody who can build) ,
and that's pretty much.
a few questions :
1. the price s you quoted for parts are for what qty? what are prices
for larger qty's like 10 , 50 and 100 ?
2. same question about the pcb .
3. about other things , can you make a detailed list what we need ,
so we can start checking how much they cost.
4. i would like us to explore alternative ways to build a cheap eeg .
for example going to the direction of hires eeg , and other
directions .just to see how much we can cut the price and cut
assembly complexity .
5. another issue if were going to the kit idea (which at
first step seems possible ) is programming . how a person without
programmer does this ?
i'll do a quick guess work , for 100 pcs and guess the price would
decerease by about 30% so the price of $105 .
assuming $50-$100 for assembly ,testing , marketing and all the other
things , and we get to completly assembled machine for less then
$200 . that's really a great offer for a powerfull 2 channel
eeg ,with amazing open-source software.that's really a price that
could make neurofeedback training availble for many people . that's
great !!
sincerly ,
yaniv
proud of what we achieved ,
yaniv
This archive was generated by hypermail 2.1.4 : 2002-07-27 12:28:43 BST