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Vroom-02 crashes when mesh network is turned on

Posted: Tue Jul 03, 2018 3:21 am
by stokersoft

I cant make a very detailed error description, but i hope for advice to get this bug report perfect, so the problem can be solved.

We have modules with Vroom-02 running NON OS AT software versoin 2.1.0 and 2.0.0.
Also we have a Jensen Omni Mesh ... 0000114009

Whenever we turn on, just one Jensen Omni device, the Vroom-02 module restarts over and over, from the log its giving a wdt repeatedly. Mostly before it happens it writes 'bcn 100'. Please note, the Vroom-02 is not connected to the device, they have no relation, they are just in the same neighbourhood.

Can it be a (malformed) beacon frame, that crashes the device? I have an idea, that is not verified, that it sends out a beacon frame with e.g. vendor specific information that exceeds the buffer size reserved in the esp8266. But i am just guessing.

All other equipment like phones, other routers, laptops etc. are coexisting perfectly with this equipment. We have tried with other Jensen Omni devices from another batch - same problem. Also we have tried other ESP8266 devices, for example the Sonoff product, it has same problem.

Any advice? Anyone tried something similar?

Regards Jens

Re: Vroom-02 crashes when mesh network is turned on

Posted: Fri Sep 21, 2018 7:08 pm
by stokersoft

Just a follow up on this.

SDK 2.2.1 solves this problem - tried with NON OS version.

It also applies to Nova Mesh network, which seems like the same hardware internally. If you install anything less than SDK 2.2.1 on ESP8266, it will not work nearby Jensen Omni Mesh or Nova Mesh network, it does not even have to be connected to the Mesh, just the sole presence of the devices takes ESP8266 down.

Regards Jens