Hi,

and sorry for wakeup of this old thread.

I did not use my device for a while and I have Raspbian Jessie installted with Evok from March 2018.

Can I do a "apt get upgrade" in order to update Raspbian? Or would there be any conflicts with Evok.

And, BTW is there an easy way to upgrade Evok (not sure if there is an Update available)...?

Thanks!

@dgajic
Does it still work after you did an "apt upgrade"?

Or will it break whenever a new kernel will be released?

Ah, well. No I am absolutely fine with this.

My Cacti monitors the system every 5 minutes. So no need for faster- I am fine with a minute.

Thanks again!

Oh, and it is working stable. Now running for nearly 2days without a reboot.

@TomasKnot
Thanks a lot for confirmation. I was thinking of 5V or 24V.

What Resistor should I use?

Hi all,

I am looking for the possibility to monitor the level in a rainwater tank. It should be sufficient to monitor steps like "empty", "quarter", "half", three quarter" and "full".

There are loads of leakage detectors on the market- most of them bring their own control device which frequently has an 1-wire interface. Well, and all of them costs a fortune (usually around 70-150€).

Now I realized such leakage detectors are usually not more than just two cables which will use water as switching medium. So how about using the following circuit with 5V or 24V as power supply?
When water reaches two open wires the circuit gets closed and is recognized by the DI.
In this case, if all DIs are open, water is empty. If all are closed it has reached max.

Would this work?

@TomasKnot

Thanks again! currently set to minutely and uptime is at 15hrs.

Looks it is really stable now.

thanks again for the great support!

I ran the script and up to now it is at 43400- so far nearly 50% more than before. No crash or reboot up to now.

I will start my monitoring system and see if it will stay stable.

THANKS a lot!

@TomasKnot

Yes, you already send one. It is fine.

Looking forward to have a stable system soon. Luckily it is not a hardware fault.

Thanks for great support!

Another test:

When I add a "sleep 1s" after every iteration (in while) the system rebooted this time after run 200 (instead of 20100 or so). So it seems to be related to some timing and not the number of accesses.

@TomasKnot
I found some kernel related issues... see kernel.log I attached.
Unfortunately it appears I have permission issues uploading. You can download the file here.