[Ovmsdev] OVMS Leaf Support

Barry Gershenfeld gbarry42 at gmail.com
Tue Oct 15 11:45:21 HKT 2013

Early development assumed you had to get the EV info from the EV-CAN buss.
Somewhere during the development of Leaf Spy they kept finding desirable
info on the car-CAN buss and so eventually determined that all if could be
gotten from the car-CAN.  As a bonus, the ELM dongle no longer has to be
modified to read the EV buss.

The original reporting efforts started with the "GID" meter, and the early
work involved Gary G. building a data recorder as well as a program to
analyze the logs.  I'm sure that's precisely what you have in mind as
well.  There were downloadable logs--he invited others to install the
analyzer and try to find meaningful messages therein.  But as it was early
development, they were probably gotten from the EV-CAN.  I don't know if
any more recent logs from the car CAN buss are posted.

As a matter of fact, I suspect Gary would be happy to have his analyzing
program used.  It would be nice output the data into the same format that
it uses.  Or at least write a converter.

I naturally have some interest, being a LEAF owner and PIC hacker.  I'll
see if I can make head or tail of the developer's guide.

 * * *

On Mon, Oct 14, 2013 at 7:04 PM, Mark Webb-Johnson <mark at webb-johnson.net>wrote:

> Developers guide is here:
> https://github.com/markwj/Open-Vehicle-Monitoring-System/blob/master/docs/OVMS_Development.pdf?raw=true
> I would rather the actual development discussions take place here on this
> list. A lot of smart people here, with experience getting these vehicle
> modules working.
> The biggest concern for me is whether we can get everything we need off
> one CAN bus...
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