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

For discussion of DIY weather equipment - sensors, accessories, improvements to existing kit etc
henkg
Posts: 99
Joined: Sun Jul 24, 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 (?)

Postby henkg » Tue Jan 23, 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: 11
Joined: Sun Oct 14, 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 (?)

Postby sutne » Tue Jan 23, 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.

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Toxic17
Posts: 692
Joined: Mon May 19, 2014 10:45 pm
Weather Station: Davis VPro2 Plus
Operating System: Debian 9.5 Stretch
Location: Bangor, NI
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Re: USB lockups Fine Offset 3080, solved by shielding USB cable (?)

Postby Toxic17 » Tue Jan 23, 2018 8:29 pm

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

https://www.conligwx.org
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Davis Vantage Pro2+ - CumulusMX v3.0.0 (build 3043) + Saratoga/PWS
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henkg
Posts: 99
Joined: Sun Jul 24, 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 (?)

Postby henkg » Mon Mar 12, 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.)
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