WiCAN stops mqtt sendings and needs re-plugging to send again

[micha53]

I got my WiCAN this week and it works in principle. I use it in a Renault Zoe Ph. 2.
But I have one Problem: If the car ist standing and not connected to a wallbox, it stops sending mqtt telegrams. For a while it sends an Error Information, later this also stops. This should not be a problem, when it would start sending per mqtt after starting to load the car. But the stick remains "Sleeping" when I start loading the car. (It is the same behavior with and without enabling sleep mode in the settings.) I think in this moment the stick should restart to send mqtt.
A Reboot of the stick makes no effect, only disconnecting and replugging brings success.
I do not understand why replugging (hard reset) works but a software reboot brings no effect. But in general the stick should restart to send mqtt, when the loading process starts. I can't imagine that replugging can start the CAN communication of the car, so why does the stick not listen to the CAN?
The ...can/status topic says "offline" and the ...can/rx is not present.
At least with enabled sleep mode the power led is blinking and I cannot access the stick until I replug it. Also turning on the ignition of the car brings no change.
I would like to have that the wican starts to send mqtt if I start to load the car, without replugging the stick.

[meatpiHQ]

can you please share a screenshot for your device configuration page? And the status tab as well.

[micha53]

Config and Status:

[meatpiHQ]

It's normal to stop sending MQTT if the car is not connected to the charger, because the ecu goes in low power mode. But it sounds like there is a bug in the firmware, when it's connected but ecu is not responding it fails.

I will try to reproduce this issue here.

What happens if, when in this state you plug in the charger and then reboot?

[micha53]

actually this happened:
i was coming home by car half an hour before. Just looked at the dongle: Blue and green LED' s were on, yellow one was flashing. I started the car and moved some meters. After that flashing the yellow LED stopped.
And now, additional 15 minutes later I opened the mqtt explorer and for some cycles I saw the right values and after some seconds they vanished and I see only this:

cfos_mqtt/set/M12 is the automate destination topic.

Your Question:
If I plug in the charger and reboot nothing changes in the mqtt explorer.

btw. using the monitor in this situation I do not see any can-message.

[micha53]

I made another test today:
Wican is in sleep mode and sleeps, I open the door: Wican wakes up and publishes car data
I close the door: after one minute wican stops publishing and goes to sleep
I open the door again and open the charging connector and close the door again and plugin the charging cable: Wican wakes up and publishes car data

So the adapter works in a way like it should do, only I had done something that caused the error. But actually I cannot say what was the difference.

I will continue to observe the behavior and will give a feedback when I know more about it. So actually there's nothing to do for the developer.

[micha53]

Actually it works fine, so I close this issue.

[meatpiHQ]

@micha53 works fine on the latest firmware version or are you still on the old one?

[micha53]

Ah, I see there is a new version from yesterday.. No I still have the old one.
But a question concerning the new one:
I had problems with the value for the 12VBatt Voltage. In home assistant this variable causes an error. Adding a letter bevore the 12 solved the problem, but does not read the value published by the wican. Maybe it is not good to begin a value used here with a number. Does it still have the name 12vBatt?

[meatpiHQ]

That's in the zoe vehicle profile right? I can change it in the profile, this is not hard coded in the firmware.

[micha53]

yes in the zoe profile

[meatpiHQ]

Ok, it's fixed now. Resync the profile and give it a go.

[micha53]

thank you
and.. can you tell me, or put into the doc, what is the payload of an Battery alert?

[meatpiHQ]

here you go

{"alert": "low_battery", "battery_voltage": 12.0}

[micha53]

so, Christmas is over, I thank you for the presents and I wish you all the best and a happy new year!

[meatpiHQ]

Happy new year! Cheers!