Welcome to the new home of the Cumulus Support forum.

Latest Cumulus release v1.9.4 (build 1099) - Nov 28 2014
Latest Cumulus MX release - v3.0.0 build 3044 7 December 2018. See the Wiki for download

USB lockups Fine Offset 3080, solved by shielding USB cable (?)

For discussion of DIY weather equipment - sensors, accessories, improvements to existing kit etc
Post Reply
henkg
Posts: 99
Joined: Sun 24 Jul 2011 8:53 am
Weather Station: WH3080 (Alecto WS-5000 ECO)
Operating System: Raspbian Wheezy on RPI B+
Location: Zeeland, Netherlands

USB lockups Fine Offset 3080, solved by shielding USB cable (?)

Post by henkg » Tue 23 Jan 2018 5:21 am

(Cumulus MX, RPI-3, common connections with 1A adapter, standard USB cable)
Lockups did occur every two till four weeks.
Replacing the USB cable with another one did not help.
Attaching ferrite cores on both ends of the USB cable did not help.

Then I decided to shield the original USB cable, on the outside, with common household aluminium foil. Wrapped some common sellotape around it, to keep the foil in place (rather ugly, but hey, it’s a prototype).

Now, 7 weeks later, still no USB lockup.
A bit early to say, but it looks like this works, at least with my setup.
Image

sutne
Posts: 12
Joined: Sun 14 Oct 2012 4:23 pm
Weather Station: Oregon Scientific WMR100
Operating System: Raspbian Jessie
Location: Mjølfjell, Voss, Norway

Re: USB lockups Fine Offset 3080, solved by shielding USB cable (?)

Post by sutne » Tue 23 Jan 2018 7:20 am

A better solution is probably to use a powered USB hub between the Rasberry and the console.
The USB in RPI is known to be poorly powered.

User avatar
ConligWX
Posts: 735
Joined: Mon 19 May 2014 10:45 pm
Weather Station: Davis Vantage Pro2 Plus
Operating System: MeteoBridge Nano SD
Location: Bangor, NI
Contact:

Re: USB lockups Fine Offset 3080, solved by shielding USB cable (?)

Post by ConligWX » Tue 23 Jan 2018 8:29 pm

and adding ferrite cores to each end of the cable can help too
Regards Simon

https://www.conligwx.org
https://twitter.com/conligwx
Davis Vantage Pro2 Plus - Meteobrige Nano SD + Saratoga/PWS Templates

henkg
Posts: 99
Joined: Sun 24 Jul 2011 8:53 am
Weather Station: WH3080 (Alecto WS-5000 ECO)
Operating System: Raspbian Wheezy on RPI B+
Location: Zeeland, Netherlands

Re: USB lockups Fine Offset 3080, solved by shielding USB cable (?)

Post by henkg » Mon 12 Mar 2018 6:09 am

Now, 14 weeks after applying household aluminium foil, still no USB lock up.
(I did not remove the earlier applied ferrite cores, so there might be a small chance the combination of the two did it.)
Image

Post Reply