DIY-EGOR interface

Seth sethea at mediaone.net
Fri Nov 24 02:02:01 GMT 2000


This is something less than what you would probably ultimately want for
an interface, but it is easy enough
to build. It's basically a copy straight out of the National
Semiconductor LM3914 datasheet. I have been planning on making a surface
mount board for a smaller boost gauge, and I have it set to read 0 to 5V
in, but 0 to 1V would be an easy modification. 

my website from when I was considering making 30 element LED
boostgauges... the display would work for DIY-EGOR, if I understand
things correctly.

http://people.ne.mediaone.net/sethea/MkIVboostgauge.html

it is a fair sized jpeg so it might take a bit of time on a modem

the .PDF file of the schematic for the display as set to 0 to 5V via a
voltage divider

ftp://ftp.diy-efi.org/incoming/boost%20gauge.pdf

or 

ftp://ftp.diy-efi.org/incoming/boost gauge.pdf

I guess the %20 is some sort of placeholder???

If this is of interest or could help, just shout. Again, I was going to
do a surface mount version of the PCB so I could get a nice looking
(small) Heads Up Display for boost inside or atop the instrument pod on
my VW.

-Seth



 
Bruce Plecan wrote:
> 
> There are 4 in use that I've heard of.
> I've heard of about that number that are under construction, and a number of
> folks saving for sensors, and or saving them for winter projects.
> Bruce
> 
> > Bruce-
> > I didn't mean vaporware as in not existing. Sorry for the confusion, I
> > was having a difficult time finding the words to say what I meant. What
> > I meant was, there aren't many of these built (correct me if I am wrong)
> > and it seems everyone wants to add features. I never meant to imply that
> > it either didn't work or that there working units.
> > Sorry for the confusion!
> > Seth
> 
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