Re: Read Signals Values from Signal Composer

["Scott Murray" <scott.murray@xxxxxxxxxxxx>]

On Wed, 6 Oct 2021, ashwin vijaykumar wrote:

> Hello Everyone,
>
> I am trying to read the Signal Values (eg: front_left_door) via Signal
> Composer. I am able to change signal values
> (messages.doors.front_left.open) via Low Can. But when I "get" the value of
> "front_left_door" is not being changed.
>
> If my understanding is correct, messages.doors.front_left.open should
> change value of front_left_door from what I can see
> from signal-composer/list,
> {
>        "uid":"front_left_door",
>        "getSignalsArgs":null,
>        "event":"low-can\/messages.doors.front_left.open",
>        "metadata":null
> }
>
> How do I read the values from Signal Composer where the values are being
> changed via Low-CAN API?
>
> Please note I am using Icefish and QEMU.

Looking at the sig-doors.json configuration for that message in the
binding source, it uses the low-can-callbacks plugin.  I did not have
much luck with that plugin the last time I tried using it, that's why I
used a more direct 1-to-1 event mapping in the steering wheel
configuration for the AHL demo setup (see sig-steering-wheel.json).  You
may need to instrument the low-can-callbacks plugin and do some debugging
it you want to use those door events as is.

Scott



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