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subj.
what're my steps for investigation?

Hi,
no suggestion so far from my side, but what kind of sketch are you using and how do you use the device?

I experience that my USB ZWave-Dongle freezes sometimes, especiall when I am not "using" the system activly. Other users in my forum also report the same issue. It seems that if the controller just answer all the incoming status messages and is not sending out an user command, the dongle freezes after several days.

I haven't found out any rules to that behavior, but the chip is identical for all of them (also the Z-UNO) and the firmware is most likly build based from library functions. So there might be some issue...

Regards,
Andreas.

thank you for replay.
JFYI here is my sketch

https://drive.google.com/file/d/0Bw0FxU ... sp=sharing

Hi,

your sketch is quite similar to a sketch I use here at the moment... ,-)
I have a PIR, a DHT11, a VH1750, another simple luminance sensor, a BMP180, a DS18B20 and an OLED... (and two relay outputs that just switch the onboard LED and another LED on my breadboard)

I cant find anything particular in your sketch. Does you actual sketch have the DEBUG enabled? In the sketch it is enabled. In 2.0.5 version when I started with Z-Uno I had a lot of trouble with the Serial.println in combination with some heavy stack usage. If you don't need the debug-output it might be worth disabling the debug code and recompiling the sketch.

My sketch is running since weeks and is still working, even if I don't send commands that often to the node.

Regards,
Andreas.

>> lot of trouble with the Serial.println in combination with some heavy stack usage.
I'm an old idiot! Thanks, I completely forgot about it!

Why are you still on 2.0.5? We are far ahead of this old version. 2.0.9 looks very stable and nice for real usage.

Who is talking about 2.0.5? %)

You mean that Serial.println was making troubles even on 2.0.9? May be we need to optimize it somehow. What type of parameters d oyou usually feed it with?

PoltoS, let me landing to home (I'm on a business trip to SFO)
after I can provide more information. OK

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