In reference to a simple, inexpensive engine

monitor that doesn't take up

much panel space.
My home brewed unit uses old technology I had

lying around: 80C85 CPU and

AD815 16 channel MUX - 8 Bit AD. The display is

the same you gave to

Tracy: monochrome 20 chars * 4 lines with LED back

light and very

sun-light readable. Parts cost of monitor is

probably less than $75

without sensors.

All sensors I use have 0 - 5 volt linear

radiometric outputs. About $20

for pressure sensors and $1 for temp sensors. EGT

sensors are from $25 to

$ 40.

I thought of making a unit and offer it for sale

but then you get

requests like: well, I'd really want 10 bits, etc.

etc.

Finn

That is a fact of life when doing business Finn.
Customers always
want what you don't have. Heck I want a 2.85:1 PSRU
from Tracy.
You must make a decision to balance requested
improvements and new features
with the cost of new developments and still stay in
business. Not something
that can be taught in business school.

Dump the 80C85 and go with a PIC. Far more modern,
up to date and evolving
technology (10 bits etc., etc.) There is a growing
market for this stuff.
This newsletter is a golden opportunity for anyone
that wants to market
stuff for the rotary. We are very focused and I will
help anyway
I can.

Paul Lamar

You the man! Paul keep this alive and someone will
comeup with a workable solution.. I got the faith..

great newsletter!!

John

 
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