[s-cars] Staged shift light for 20V cars

[Achint Sandhu]

Hi Pram,

	Thanks for the reply. I did know about the commercial products. Another one
is: http://www.rev-lite.com/rev.html (This one is limited to 4 cyl engines).

	I am looking to build my own, more as a learning exercise than anything
else....

	Thanks for the data tool reference. I did not know about that one :-)

Cheers,
Achint

On August 26, 2002 12:31, Pram wrote:
> Achint:
>
> There is a LED revmeter made by "Datatool" in England
> (www.datatool.co.uk)
>
> I use it on my motorbike.  It is somewhat programmable with three mode
> of display.  It has a total of 6 green, 3 yellow and 2 red (with auto
> adjusting brightness  for ambient lighting condition).  My favorite is
> the  all LED blinking to inform me of need to upshift.
>
> Anyway it is off my bike now and I am in the process of installing it on
> my 993turbo.  I have already located where to tap the pulse on my
> 993turbo but just have not got the time to go in and do it.
>
> I purchase the Revmeter from a vendor in the motorcycle magazine (either
> motorcyclist or cycle world)
>
> HTH,
> Pram
>
> On Monday, August 26, 2002, at 09:08 AM, Achint Sandhu wrote:
> > Hi,
> >
> > 	I would like to add a shift light for my 96 S6. The main idea is
> > that I want
> > to have 10 LEDS (lighting at 200 RPM increments from 5000rpm to
> > 7000rpm). I
> > can use the LM3914 LED driver (National Semiconductor) to accomplish
> > this
> > fairly easily given a varying voltage signal. I was hoping that the
> > stock
> > tach uses a voltage input and I could simply wire my circuit in
> > parallel with
> > the stock tach.
> >
> > 	I haven't been able to find any data on the Audi tach, but from
> > what I can
> > see with other tachs, they rely on pulse measurement to generate the
> > output.
> > If that is indeed the case with the Audi tach I was thinking of using a
> > LM2917 frequency to voltage convertor (National Semiconductor) to
> > create the
> > input for the LM3914.
> >
> > 	I am a computer programmer, hence I next to nothing about hardware
> > and came
> > up with the "design" (if it can be called that) based on some example
> > circuits I saw on the net. The above may not even be possible and with
> > a high
> > probability is a moronic design :-)
> >
> > 	Any help/information that can be provided would be great. Thanks in
> > advance....
> >
> > Cheers,
> > Achint
> >
> > --
> > "Weaseling out of things is important to learn. It's what seperates us
> > from
> > the animals. Except the weasel."
> > 		--Homer Simpson
> >
> >
> > _______________________________________________
> > S-CAR-List mailing list
> > S-CAR-List at audifans.com
> > http://www.audifans.com/mailman/listinfo/s-car-list

--
"Weaseling out of things is important to learn. It's what seperates us from
the animals. Except the weasel."
		--Homer Simpson