Re: TI-H: Morse-eye
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Re: TI-H: Morse-eye
Ok, try this:
point an infrared LED at the corner of the eyeball, so that the person
would have to move there eye all the way to the right(or left, depending
on the eyeball chosen) in order to see it.
Put a photosensor next to the led, pointed at the eyebal.
Modulate the LED at a high frequency ( such as the commonly used 40kHz,
to filter out other lights)
Now, watch the output on the photosenser(after band-passing the 40kHz)
The eyebal reflects more light than the eye lid. Thus, you can tell
when the eyelid is closed.
It would be faster, more reliable, and comfortable than any mechanical
system you could come up with.
Further: If you mount it on top of your calc, pointed at your face, it
would still be a noticable enough change to use.
One could also use surface mount parts on their eye-glasses to obtain
invisible, or near invisible, detection of eye blinking.
Hope this helps.
-Adam
Michiel Trimpe wrote:
>
> K guys, just to get back on topic.
>
> I put up this concept, because it had to have a use. This is gonna be
> for people who have been in a coma for a longer period of time, and are
> often disabled.
> The first movement their brains can control is their eye's blinking, or
> movement (that's beyond the scope of my project). I just need some help
> developing the hardware part.
> The software part will be a really big mix of PC, AVR, calc (EZ 2 begin
> with), ICS's etc.. etc.. . The ultimate goal is to allow these people to
> live their own lives without the aid of others. That would mean their
> blinking would have to turn tv's on/off, open/close doors etc.. etc.. etc..
> . I hope you get the point. Just to test the basic idea I wanted to hook up
> the hardware to a calc for now and just start doing stuff with it.
> Eventually this system should signal the morse code into a central
> control station through one simple H-line. This would then relay all the
> different request to the appropriate object, such as a computer, the TV,
> the door, the light, the heating and a lot of other stuff.
> I would thus like to ask Christopher, who *does* seem to be entirely
> familiar with the concept of miniaturization, to please guide me into the
> right direction.
>
> I hope this is enough to bring y'all back on topic.
>
> G, m-.
>
> Michiel Trimpe wrote:
>
> > Hey guys,
> >
> > I'm the one that was talking about the foldable keyboard. I've got that
> > one working just fine. But now I have come up with something new. I
> > think this is really dope. I was just kinda thinking about some nice
> > input device for your compu/ticalc. I came up with the idea of using
> > your eyes and morse code to get some input into your calc. If your eyes
> > are closed, it's zero and if they're open it's a one, or the other way
> > around.
> > The software part is not all that hard, but the hardware part is.
> > Does anyone know of some sort of material that you could put on your
> > eyelid, and that would allow you to get the state of the eye?
> > The morse stuff types really fast for me. I've programmed it using
> > the 2nd button, and it really rules!
> >
> >
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