Re: Making the Fuel Gauge read SOC (was: sender replacement)

[Robert W Oldham <ks4lb_bob@JUNO.COM>]

On Tue, 25 Nov 1997 08:22:03 -0700 "Bill Dube'" <bdube@BOULDER.NIST.GOV>
writes:

>        The Cruising Equipment folks will put an RS-232 port on the back
of
>their E-Meter for a small extra fee. The E-Meter is the best SOC device
that
>I know of.  A Parallax BASIC Stamp II is capable of receiving and
parsing
>the 9600 baud data stream from the E-Meter RS-232 port. The BASIC Stamp
can
>easily be configured to PWM a transistor and/or opto-coupler to emulate
the
>OEM resistive level sending unit that was in the gas tank (or the oil
pressure sender.)
>
>        A day soldering, few evenings programming, and a few minutes
calibrating should have the OEM gauges on the dash showing anything the
E-Meter knows. This could be SOC, Amps, Volts, Time Left, Battery
Temperature, or Ahrs. If one was clever and tagged into the emissions
gizmo on the speedo cable, you could have the Stamp calculate the current
Whrs/mile and figure Miles Left if so desired.
>
Bill, why would you want to do all that if you have an E-Meter? I thought
it could display all that info well enough. I guess just to put the dash
gauges to work? It does sound cool -- and I guess you could hide the
E-Meter so only the dash gauges show.

Bob Oldham
Re: Making the Fuel Gauge read SOC (was: sender replacement)