[Ovmsdev] Leaf or US Volt

Tom Saxton tom at idleloop.com
Wed Apr 25 11:54:21 HKT 2012

Cathy and I have a Leaf, with one of Gary Giddings SOC meters.

The CarWings stuff is terrible compared to OVMS, and the service tends to go
down with some regularity. The only thing that's nice is turning on the
pre-heat. I'm guessing that if that functionality is available via the CAN
bus, it's on a different bus than the EV stuff.

There could be real demand for an alternative when CarsWings stops being

As far as I know, no one has found location info on the Leaf's CAN bus. I
suspect a GPS receiver would have to be added to OVMS to implement the cool
location stuff.


on 4/24/12 6:56 PM, Mark Webb-Johnson wrote:

> Are there any OVMS owners/developers out there who also own a Leaf or US Volt?
> I'm interested in the possibility of a server-side gateway to the Leaf and
> Volt web interfaces. We would get the info from those systems and translate it
> into OVMS. From the OVMS App you could then see the Leafs/Volts?
> It won't work for non-US Volts (something we're working on with an OVMS module
> in the car), but for US Volts and all Leafs it should work just fine.
> Does anyone know how the web APIs for those cars work? I am aware of some
> reverse-engineering work, but are there official APIs?
> Regards, Mark.
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