WBO2 LCD digital display

[Hugh Keir]

Don,

The DataQ DI-194 measures +/- 10 volts at each of it's four analogue inputs.

TPS and AFR are simple voltage outputs and are no problem.

RPM and also the output to the speedometer from the ECU, is on my vehicle a
pulsing wire which needs some more resolution to be able to read the shape
and amplitude of the wave which is where my comment on RPM came from.

Thinking about it further, picking up on the output from trigger disk (
camshaft type ) for cylinder 1 TDC which at 8000 RPM MAX = 67 reads per
second or crank trigger 134 reads per second should also be possible. The
output can be sent as a .CSV file to your spreadsheet for analysis, although
I haven't gone this far it should be easy to do.

I might have a go later and let you know if it works.

Hugh

----- Original Message -----
From: "Don DRI05 Ricciardiello" <dricciardiello at qantas.com.au>
To: <diy_efi at diy-efi.org>
Sent: Wednesday, October 24, 2001 2:02 AM
Subject: Re: WBO2 LCD digital display


>
> I would want, RPM, TPS and AFR. Why wouldn't the DataQ DI-194 not handle
> that?
>
> Don
>
>
>
>
> I have a Dataq 4channel starter kit which works quite well.
>
> It has a maximum sample rate of around 230 per second, so is perfect for
> logging the WB output.
>
> However, for some you will then probably want to reference RPM to see
where
> you are weak / rich which will allow an analysis of whether you are
> improving the vehicle performance or not and the Dataq 4channel starter
kit
> is not fit for that purpose.
>
> I found a self build item at http://www.geocities.com/93notch/EMS/ which
> uses a Texas instruments TLC2543 chip.
> The circuit has 11 input channels and the site gives you pictures of the
> circuit, a build list and some basic software to run the chip.
>
> This set-up would I think have the speed to read crankshaft trigger disks
> etc to give you ignition timing as well.
>
> Hugh
>
> ----- Original Message -----
> From: "Enzo Iadevaia" <enzo5555 at yahoo.com>
> To: <diy_efi at diy-efi.org>
> Sent: Monday, October 22, 2001 11:13 PM
> Subject: Re: WBO2 LCD digital display
>
>
> > I never have, but I ordered it after looking at the specs.. It looks
like
> a
> > great tool for datalogging.. The software looks very good... Has anyone
> here
> > used this before, I would also like to know...
> >
> > > Have you or anyone else used this?.
> > > Bruce
> > >
> > >
> > >
> > >
> > > ----- Original Message -----
> > > From: "Brian Renegar" <thomas.renegar at nist.gov>
> > > To: <diy_efi at diy-efi.org>
> > > Sent: Monday, October 22, 2001 2:12 PM
> > > Subject: RE: WBO2 LCD digital display
> > >
> > >
> > > > Try the Dataq 4channel starter kit.  Plugs directly into the serial
> > port:
> > > >
> > >
> >
>
http://www.dataq.com/cgi-local/SoftCart.exe/products/startkit/di194.htm?E+sc
>
> > > > store
> > > >
> > > >
> > > > >Are there any simple solutions for data logging to a laptop for the
> WB
> > > > >O2? Perhaps a USP or parallel port device?
> > > > >
> > > > >TIA
> > > > >Don
> > > >
> > >
> >
> >
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