Re: Light & Sound

["Marc Mosthav" <marc@xxxxxxx>]

Keith,

great tip!!! All the info needed is on:
http://www.epanorama.net/documents/joystick/pc_joystick.html

Marc
----- Original Message -----
From: "Keith Doxey" <ukha@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: Friday, August 17, 2001 2:15 PM
Subject: RE: [ukha_d] Light & Sound


> Sorry,
>
> Dont know. try www.epanorama.net
>
> Keith
>
>
>
> -----Original Message-----
> From: Marc Mosthav [mailto:marc@xxxxxxx]
> Sent: 17 August 2001 13:46
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Light & Sound
>
>
> Thanks Keith, sorry if this is another stupid question, but what pins
should
> I use or where can I find the pin layout?
>
> Marc
> ----- Original Message -----
> From: "Keith Doxey" <ukha@xxxxxxx>
> To: <ukha_d@xxxxxxx>
> Sent: Friday, August 17, 2001 11:40 AM
> Subject: RE: [ukha_d] Light & Sound
>
>
> > Hi Marc
> >
> > It wont work.
> >
> > as you correctly state, an ORP12 is a light sensitive resistor
who's
> > resistance varies according to the ambient light level.
> >
> > A microphone is TOTALLY different. It GENERATES electricity in
response
to
> > sound waves by moving a coil (which is attached to a moving
diaphragm)
in
> a
> > magnetic field. (DYNAMIC Michrophone only - Capacitor Mics are
different
> but
> > still output an electrical signal).
> >
> > I assume from your question that you wanted to use the soundcard
to
> connect
> > a light sensor via the MIC socket. It wouldnt work as the output
from
the
> > sensor would be at a fixed level for a given light level.
> >
> > You could attach sensors to the joystick port but you would have
to
write
> > the software to read the analogue voltage on the port.
> >
> > HTH
> >
> > Keith
> >
> >
> >
> > -----Original Message-----
> > From: Marc Mosthav [mailto:marc@xxxxxxx]
> > Sent: 17 August 2001 11:21
> > To: UKHA_D
> > Subject: [ukha_d] Light & Sound
> >
> >
> > Hi all,
> >
> > being a newby to all of this my question might be extremely
stupid. If
> that
> > is the case don't hesitate to tell me so ;-)
> >
> > My thinking is that I don't need a microphone on my HA computer
(running
> > Linux) and microphones basically basically behave like sound
dependent
> > resistors. If I use a LDR like the ORP12 instead with some
software then
I
> > get a nice little light sensor.
> >
> > Does anybody have any thoughts on this?
> >
> > Marc
> >
> >
> > For more information: http://www.automatedhome.co.uk
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> >
> >
> >
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>
>
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