WB O2 Display, WI

[Bruce]

Thanks
Very informative
Bruce


----- Original Message -----
From: "Bernd Felsche" <bernie at innovative.iinet.net.au>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, October 23, 2001 11:21 PM
Subject: Re: WB O2 Display, WI


> David Harris tapped away at the keyboard with:
> > WB O2 Display:
> >
> > Maybe this is a stupid question since I'm new to the
> > list but why not simply use a microcontroller?
> > Microchip and Atmel make some pretty cheap (less than
> > $20) and capable micros (you could make an Atmel
> > programmer for less than $10). You could put the curve
> > in a lookup table and display A/F directly. You could
> > also output a traditional 0-1V for the stock ECU and
> > replace the narrowband O2 completely...
>
> I think this was first suggested about 2 years ago. Definitely more
> than a year because it got me "trapped" into the DDL (Direct Digital
> Lambda) concept.
> http://bernd.felsche.org/tech/EFI/vapour/DDL.html
>
> Not yet finished ... I'm still struggling to get substantial free
> time to dedicate to it. A couple of hours a month isn't enough to
> make noticeable progress, being "new" to uC programming and circuit
> design.
>
> > This is my plan for one of the weekends this winter.
> > If no one else has designed something by then, I'll
> > upload it to the server...
>
> Peter Gargano included space for an ATtiny15 on his PCB... if that's
> all you want it to do; to produce a mapped signal, then it should be
> comparatively straightforward.
>
> --
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