[Ovmsdev] HUD Cables

Stephen Casner casner at acm.org
Thu May 24 03:02:50 HKT 2018

On Wed, 23 May 2018, Greg D. wrote:

> Curious why he didn't use the regular OBDII connector under the
> driver's side dash?  +12v is about the only thing it provides that's
> useful.  I don't think it's switched off when the car sleeps, but
> could be wrong there.

That's exactly it -- the +12V turns off when the car sleeps.  He said
that was contrary to the ODBII spec, but I don't know whether that is
correct.  He wanted the camera to be always on.

                                                        -- Steve

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