G’day. My shake, after working well for many years has now started intermittent loss of signal. I restarted modem and POE and device but it hasn’t made a difference. See attached files. Please can you you advise.
Graham
Hello grazhobart, and welcome back to the community.
Thank you for the screenshots. I think this is something that could be power-related, but to be sure, could I ask you to go to rs.local/, download the logs via the orange button at the bottom, and send them to me?
Also, could you SSH into the Shake and check for any undervoltage events by executing this from the command line?
sudo zgrep -a -i voltage /var/log/syslog*
It will provide all the lines in the log files where voltage issues have occurred. This will help us better understand what’s going on “under the hood” of the Shake.
Thank you!
HI
I can’t see the orange button on my web app?
Also how do I SSH inti it?
Thanks
Graham
Hello Graham,
No trouble: with the new rs.local, you can find the “Download Logs” button here, on the right side of the screen.
Regarding SSH, you can find guidance on accessing your Shake on this page in our manual.
To summarize, you can use the command prompt/terminal on your Windows/Mac/Linux PC and follow the instructions on the page.
The logs will be a good starting point in any case.
Here
RSH.R4277.2025-12-08T04_46_20.logs.tar (6.1 MB)
you are matey
Thank you grazhobart, they were most useful.
I looked for eventual errors, and I’ve found this repeated many times:
2025 342 04:46:20>> internal error: buffer overflow! cannot process read data...
2025 342 04:46:20>> buf: {ÿOk?M?DU2E
2025 342 04:46:20>> Y??Mª?K]?+?U?QAë?J]?Å\Ý?S
2025 342 04:46:20>> QAºEBa?Ð?ed?Eñ??,]Ð?cÂ?UñT?EBWMÔW?AWUE?W]W?QWa?
These “gibberish” lines are usually associated with a lack of power supply and/or possible microSD card corruption (which, in turn, can be caused by the same insufficient power arriving at the Shake).
The first thing to try is to remove the POE and use a standard (better if the official Pi one, but also another if you know it is working as intended) power supply unit. It has to deliver a stable voltage between 5.0 and 5.2V and a current of at least 2.5A at all times (3.0A if the Raspberry Pi board that is being used is a RPi4), as a decrease in power could lead to data services interruption and the gaps you have seen.
If, after changing it and testing it for some time, the data gaps are still there, a second check that you can do is to see if all the connections between the sensor, the blue Shake board, and the Pi board are still solid and free from dirt or any other element that could compromise transmission. If you decide to disassemble the Shake during this process, please refer to our recommended ESD (ElectroStatic Discharge) guidelines and assembly/disassembly video guides here.
Lastly, I would then recommend re-burning a completely new microSD, after formatting and erasing all its data/partitions first (you can use DISKPART for this as it is very efficient), and see how the Shake behaves with the newly installed system, possibly removing the issues we are seeing. I will leave the burning instructions link here for your convenience: microSD card topics.
Let me know how these checks go!
Thanks Stormchaser- I will try with a dedicated power source first
Hello- it seems it was the power source (POE)> Thanks heaps- it looks like it is capturing data continuously now. Just need an extension cord so I can put it back where it was situated.
Thank you Stormchaser !!
Graham
Great news Graham, happy that it was something you could fix in an easy way!