Likes: 
Hello Morco,
first of all, thanks so much for getting back to me so quickly and for your detailed answer. Great to see that in theory the setup I'm aiming for should be working.
In the meantime I have contacted QField's developers and tried to work on a pure-Windows solution with QField's experimental native windows builds. However, the Android version being a lot more versatile, I want to continue trying to get it running on AMIDuOS.
Due to the Covid-restrictions, I do not yet have access to our field equipment. So at the moment I'm simulating the situation using my Lenovo Flex14 Touchscreen Laptop instead of the Tablet. I'm simulating the TrimbleR2 NMEA data stream to a bluetooth COM port with your proposed setup, Android device + "GPS over BT" app.
Everything works except that within AMIDuOS, my position is never visible, also not by any gps logger like ([Only registered and activated users can see links. ]) or ([Only registered and activated users can see links. ]).
What works well:
- "GPS over BT" app is connected to the Win10 and sends NMEA to COM5
Approach 1 (using external hardware GPS)
In theory, using the external hardware GPS option in DuOS Devices Settings should work because
- I can connect to the COM5 and receive NMEA phrases via TeraTerm ([Only registered and activated users can see links. ])
- When, before launching AMIDuOS (1) I activate "Hardware GPS" (2) establish the Bluetooth Connection and (3) turn off TeraTerm to free the com port, then, when I launch AMIDuOS
the "GPS over BT" app switches to "connected to computer" and when trying to connect Tera Term, it says "Cannot open COM5. Access denied". --> Which means AMIDuOS is actually occupying and reading the com port.
BUT it doesn't work: It does not make the location available within the android environment. I tried all types of location settings and switched between manual and automatic hardware gps configuration.
Spoiler: pic1
(the coordinates were somehow not printed to the screenshot, even though they were showing correctly the whole time.)
Spoiler: picset
Approach 2 (using the Windows location)
My Laptop has no internal GPS sensor. Hence, again I used "GPS over BT" app to send NMEA phrases to COM5, then I used GPSDirect driver ([Only registered and activated users can see links. ]) to map the GPS location to the Windows location. It works perfectly, because my actual position can be shown in the Windows App "Maps".
So here I deactivated the "External Hardware GPS" option, expecting that AMIDuOS would just take the Windows location, just as you described in Post#3.
But still no position within AMIDuOS, not in QField, not within a GPS logger app.
Spoiler: large pic
I am a bit lost with regard to what else I can try. I can't see what I'm doing differently and why it's working for you and not here. Do you have any other idea what might be the problem, why AMIDuOS cannot pass on the position information to the apps installed within? I am already contemplating to just wait until I have access to the actual field tablet and antenna and stop simulation on my computer, because maybe the computer is the problem.
My specifications: AMIDuOS 2 Pro 2.0.8.8511 Full Version
Spoiler: large pic
Just wondering:
-To solve the problem from Post #3, have you tried to assign the com port and adjust/lower the Baudrate manually?
-Do the gps logger Apps I mentioned above correctly show your position inside AMIDuOS?
-What have you selected for location setting mode? High accuracy or device only?
-What Computer/Tablet are you running it on?
-Which Windows version?
-Which AMIDuOS version?
Best, Robin
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14th May 2020, 03:20 PM #15Junior Member
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Last edited by Boki; 14th May 2020 at 05:28 PM. Reason: spoilers!
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