241Re: Hardware status (cheapeeg)
- Apr 4 2:11 PM--- In buildcheapeeg@y..., Moritz v. Buttlar <info@b...> wrote:
> >> Iinterface. If we use an interface that only a small percentage of
> > > would say, however, that I believe we should aim to produce a
> > > device that everyone can use, not just those with the right
> > > hardware.
> > > Regards
> > > Eric
> > I have to agree, I think it is absolutely vital to have a common
users have, we might be making a dead product.
> Most PCs have conventional 9pin RS232 serial interfaces. If we use
> without any IrDA infrared communication - and use simpleoptocoupler-isolation,
> I´m not sure if the design would be safe enough to meet safetynorms.
>IrDA module ?
> What do you think ? Would it be too expensive to spend 30$ on an
> How many people have a notebook computer with IrDA in this group ?I have 1 laptop with & 1 without IrDA & don't think $30 is
unreasonable, but it _is_ proabably a significant cost for some
people, especially considering how cheap the rest of the devide will
be. I think there are a lot of other machines on the market using
serial connections w. optic coupling. Rex Hartzell's Discovery
Engineering Inc. machine, for example. Lexicor connects their stuff
to the parallel port. As a non-geek, I don't know why you would want
to use serial rather than parallel, since I always though parallel
was inherently faster, carrying 8 bits at once instead of 1.
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