Cumulus Support

Here are the details using an ambient weather fine offset WS2080:
Raspian 1.9
mono version 3.2.8:
Mono JIT compiler version 3.2.8 (Debian 3.2.8+dfsg-10)
Copyright (C) 2002-2014 Novell, Inc, Xamarin Inc and Contributors. http://www.mono-project.com
TLS: __thread
SIGSEGV: normal
Notifications: epoll
Architecture: armel,vfp+hard
Disabled: none
Misc: softdebug
LLVM: supported, not enabled.
GC: sgen

MX output:
CumulusMX:
Current culture: English (United Kingdom)
Serial: 74FECEABEB2DA94ECB5EBA0CD11A7137
Cumulus MX v.3.0.0 build 3038
Today.ini = data/today.ini
Last update=2016-05-05T01:09:05
Looking for Fine Offset station, VendorID=0x1941 ProductID=0x8021
sysname=Linux release=4.1.19 machine=armv7l
Fine Offset station not found
Cumulus running at: http://*:8998/
(Replace * with any IP address on this machine, or localhost)
Starting web socket server on port 8002
14/05/2016 00:06:16
Type Ctrl-C to terminate

HidTest:
sysname=Linux release=4.1.19 machine=armv7l
Complete device list (took 278 ms to get 0 devices):

Opening Fine Offset station
Fine Offset station not found
Opening Oregon Scientific station
Oregon Scientific station not found
Press a key to exit...

lsusb
Bus 001 Device 005: ID 1941:8021 Dream Link WH1080 Weather Station / USB Missile Launcher
Bus 001 Device 004: ID 13ba:0017 PCPlay PS/2 Keyboard+Mouse Adapter
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Why does HidTest not find Device 005? The weather station works perfectly under Windows using Cumulus (weather.theweissguy.com).

Any sugestions preferably from some successfully using a Fine Offset on a PI3?

I'm not using a Fine Offset on a Pi3, but I thought I might offer a couple of suggestions anyway. Do you have libudev0 installed? And are you running privileged - i.e. using sudo or under user root?

If that doesn't help, try turning on debug logging in Cumulus.ini and look at the MX diags file - there might be something helpful in there.

That's it - need to run as privileged. Works great, also now using mono 4.0.5. Many thanks for the simple fix!!