Re: Heads up display

[Ludis Langens <ludis@cruzers.com>]

Dan Gentry wrote:
> 
> As I read it in the manual, it's a sine wave from the sensor, then a digital signal from the
> computer to the speedo.
> Question: Is it 0V (low) and 5V (high) or 0V(low) and 12V(high)?

It is 0V (low) and whatever-you-want (high).  The output from the ECM is
a transistor switch to ground.  Your device is responsible for having a
pullup resistor to whatever voltage you want.

-- 
Ludis Langens                               ludis (at) cruzers (dot) com
Mac, Fiero, & engine controller goodies:  http://www.cruzers.com/~ludis/

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