EGOR Interface - Display

[Bruce Plecan]

Fine!,  sketch something out, and I'll start on it as soon as I can get
parts.
Sounds great, just tell me how to do it.
They fly in the ointment is some folks can build, but aren't versed in the
design end.
Give me a 0-1v output with 14.7:1 switching at .44v, and I'll be running the
WB just to wear it out.

I even have the perfect LCD
3-1/2D  LCD
PM-128
all it needs is 9v, and an input voltage.  Already has voltage dividers in
it.

With the 0-1v we can use an analog meter and recal for a readout.
BUT, WE something.   We need something with a slow enough refresh rate that
things are less then a flicker.
bruce


> Display? How about a simple ROM look up table. You can accommodate any non
> linearity's by storing the calibration factors in the ROM.
> Example. Use a 12 bit A/D converter on the 0V to 1V output. Use the
digital
> output to address the ROM. Add a simple digital display driver to the
output
> of the ROM. You can have several curves stored in the ROM:
> 1. Analog voltage
> 2. Lambda
> 3. Air Fuel ratio
> A simple switch that changes the upper address to the ROM will allow you
to
> switch between the three.
> FR Wilk

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