From: Moritz von Buttlar (info_at_baltic-microsolutions.de)
Date: 2002-01-18 04:19:09
Hi Andreas !
Your design looks pretty cool. But I think you left some of the problems
(the ones why the modulareeg isn't ready for use yet) unaddressed.
These are, from my point of view:
- optoisolation
- power supply (battery ? DCDC ?)
- INA-amplifier failure protection for the user (input connected to supply)
Joerg's working first design, the RS232EEG, has better security features as
far as I can see.
Also, your design is quite expensive in comparison and more difficult to
build for the electronics novice.
But I like the small size very much :)
Maybe we could make a 3-Stage-modular-design consisting of the following
stages:
- analog amplifier
- adc and uC
- communication/power supply/isolation
Then we could design various modules which can be combined like everybody
wants:
Andreas tiny amplifiers with modularEEG adc/uC and somebody elses IrDA
interface
What do you think ?
Moritz
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Moritz von Buttlar
Flash uC/DSP Development http://www.baltic-microsolutions.de
Free EEG Design http://openeeg.sf.net
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