[Shotimes] BARO sensor
Zach Leahy
leahyz@gmail.com
Mon, 19 Sep 2005 08:03:45 -0500
Ian,
I can see it, and I am laughing my ass off about it :)
Yeah I'll hook mine up and grab the ol' ax and have an accoustic session.
What if we ran the BARO sensor through an effects pedal? :)
Z
On 9/18/05, Ian Fisher <dataflash@yahoo.com> wrote:
>
> I think my neighbors would finally think I've lost it
> if they see me hooking up my car to one of my guitar
> amps and jamming out with my BARO sensor...
>
> Ian
>
> --- MonsieurBoo@aol.com wrote:
>
> > > Anyway at sea level you should be seeing around
> > 160-170 Hz. As
> > > you apply vacuum to the open port the frequency
> > should decrease to a
> > > low of somewhere around 90Hz. The sensor has 3
> > wires. One is the 5 VDC
> > > supply, one is a ground and the middle pin on the
> > sensor should be the
> > changing
> > > output. I do have instructions for using a
> > tachometer to read the
> > frequency.
> > > Set it on 4 cylinder setting and you should see
> > 4800 rpm with no vacuum and
> > > the rpm's should decrease with increasing vacuum.
> >
> > Hmmm, with a 5V level, any electronic musicians out
> > there could hook the
> > output to an op amp and drive a speaker with it.*
> > Then compare it against some
> > instrument you have handy.
> >
> > For example a keyboard. 150 Hz is roughly a D3 (D
> > below middle C) and 90 Hz
> > is roughly an F2 (2 Fs below middle C).
> >
> > Or a guitar: 150 Hx is roughly the same as the open
> > D (4th) string. 90 Hz
> > is about the same as the low E (6th) string on the
> > second fret, which takes
> > it up to an F2.
> >
> > If you don't have any suitable instruments, here's a
> > link to a set of guitar
> > tuning tones but you would have to use the open low
> > E and it will be one
> > tone lower than the BARO sensor with vacuum applied:
> >
> > _http://www.guitartips.addr.com/tuner.html_
> > (http://www.guitartips.addr.com/tuner.html)
> >
> > These are moderately low frequencies so don't use
> > too dinky a speaker ;-)
> >
> > Cheers
> > Mark LaBarre
> > 94 atx 130k
> >
> >
> > *Or you could drop it down to max 1V and run it into
> > a line-level input to
> > your stereo, using appropriately-valued bridged
> > resistors as at:
> > _http://www.termpro.com/articles/faders.html_
> > (http://www.termpro.com/articles/faders.html)
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> >
>
>
>
>
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