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Re: [Openeeg-list] Re. OpenEEG and Arduino
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From: M <a.t...@gm...> - 2009-04-26 14:08:32
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I'm new to the list, I found your reply interesting because while I have a moderate interest in EEG I know almost nothing - now I know a little bit more. - Morris Webb 2009/4/25 Stefan Jung <bio...@gm...>: > Kevin, > > Let me guess. You are a student and your college lecturer gave you a > project to do and stipulated that you HAVE to use an Arduino board, right? > And you thought an EEG amp would be very COOL, seeing that everybody is > talking about BCI. > > Why else would anybody want to replace a proven, double sided PCB with > proper galvanic isolation, a decent ground reference/earth plane, the > virtual ground reference and a small part of the analog (anti-aliasing) > filter with a CRAPY Arduino board that does not even have a ground plane? > Especially considering that you already have the correct board in your > posession? > > If you don't have a decent ground plane but only a few thin copper tracks > zig-zagging through digital noisy areas of the PCB you just haven't got a > decent analog reference against which you can measure. No smooth tar > surface but a dirt road full of pot-holes! > > I am not a diplomat - so excuse me for saying what I am about to say: > > Yes, openEEG is a sort of electronics forum. But a very special interest > forum. If someone needs help with college tasks, there are many other > forums that cover PICs, AVRs and any other small or large processor family. > Joerg Hansman seems to have made a duck from this forum a few months ago. I > take my hat off for him always answering all these questions. He had the > habit of replying with very short one liners. My replies are long, it's not > something that gets knocked together in a minute! > > We all had to start somewhere. We all needed and had mentors. I am a > sort-off mentor at work for some young engineers. I don't know everything. > Even if someone with little knowledge builds modularEEG and then needs help > I would consider helping. But we have attained a certain performance level > with openEEG. We would like to perhaps improve and move forward. > > If someone thinks he can do better, by all means, go for it. But if you > change things you should have a good REASON for doing so AND you should KNOW > what you are doing. EEG amps are not toys, it is very UNCOOL to build this > stuff without proper electric isolation! > > I don't think openEEG is a forum intended for the experimentation you have > in mind. The subject matter does NOT lend itself to such experimentation. > The subject matter requires extremely low noise and has safety > requirements. Yes, for a demo, you can run from a battery operated laptop, > safely - I must acknowledge that. Anyway, that is my understanding of > openEEG. If I am wrong about that, someone please point it out to me, > because then I am definitely in the wrong place. > > If someone thinks he knows better, thinks he's got a good reason to change > and thinks that he understands his modification and it THEN does not work as > he hoped for, THEN I will be happy to help. > > It would have been simpler to just ignore this mail, as indeed I have > done on many previous occasions, but I have decided for once, to speak out. > > Stefan > > > > > ------------------------------------------------------------------------------ > Crystal Reports - New Free Runtime and 30 Day Trial > Check out the new simplified licensign option that enables unlimited > royalty-free distribution of the report engine for externally facing > server and web deployment. > http://p.sf.net/sfu/businessobjects > _______________________________________________ > Openeeg-list mailing list > Ope...@li... > https://lists.sourceforge.net/lists/listinfo/openeeg-list > Go to the above address to change your > subscription options, e.g unsubscribe. > > |