New Plugin NmeaConvertor

[conachair]

Dirk,
First of all well dome on a great plugin, very useful.
There seems to be something strange going on with barometer readings - discussed here..
http://www.cruisersforum.com/forums/...ml#post2038892

It looks like the nmea string is in Bar units, which then get converted to mB by the logbook and the dashboard plugins. However could the nmeaconverter be rounding up the B ;units to 1 decimal place?
For instance - if a reading of 1.019 is in the input sentence of the converter it comes out as 1.0, so turns into 1000mB in the dashboard/logbook plugins.
Does that sound feasible? Would it be possible to increase the resolution to 5 decimal places.
Thanks again for sharing a great plugin.

[rooiedirk]

The output of the converter is indeed standard 1 decimal.
I'll have a look if this is easy to change without getting temperature reading with 5 decimals.

[rooiedirk]

@conachair
Made an update in git.https://github.com/RooieDirk/NmeaConverter_pi
Checking now first the number of decimals in the inputline, and use than the same number for the output decimals.
Pls give it a try.
Dirk

[rgleason]

Compiled for Windows and uploaded to
OpenCPN Beta File Thingie rguser rgpass
under 4.2 PI WIN

[rooiedirk]

@conachair,
If I understand it right your input sentece is in mbars, with one decimal. If you devide this by 1000 to get bars you still get one decimal as that is the input. However doing $--XXXx/1000*1.00000 should give you 'bars' with 5 decimals

[conachair]

Originally Posted by rooiedirk

@conachair
Made an update in git.https://github.com/RooieDirk/NmeaConverter_pi
Checking now first the number of decimals in the inputline, and use than the same number for the output decimals.
Pls give it a try.
Dirk

Thnx, gave the windows a quick go (big thanks Rick, for compiling!)
Seemed to work but O crashed when I tried to write a line to the logbook. I'll dig a bit deeper when I get back onboard.
Ironically I've actually got the barometer working fine as i have an arduino doing various stuff before it gets passed over to a raspberry pi running openplotter and Opencpn, a bmp180 barometer/temperature board is now connected to the arduino which writes the relevant nmea sentence, in Bar I believe to 5 decimal places.
Saying that, it's easy to connect the same board to the rasp Pi but openplotter broadcasts the data as a xrd sentence, so if nmeaconverter could translate that into something the plug ins understand I'm sure some people would, do be very grateful .
Thanks for having a look.

[conachair]

Originally Posted by rooiedirk

@conachair
Made an update in git.https://github.com/RooieDirk/NmeaConverter_pi
Checking now first the number of decimals in the inputline, and use than the same number for the output decimals.
Pls give it a try.
Dirk

OK, now compiled and running seeming fine on a raspberry pi, reading from an BMP180 and auto updating into the logbook.

Not sure what's going on in my windows7 laptop, even with the previous version reinstalled it keeps crashing O.

[Swokey]

Hi,

I had the problem with the pressure. Now I'm new to linux and try to install the update.

First I tried the following on my PI2:

git clone git://github.com/RooieDirk/NmeaConverter_pi.git

mkdir NmeaConverter_pi/build
cd NmeaConverter_pi/build
cmake ..
cmake --build .
make
sudo make install

But after opening OpenCPN, the nmea converter is not installed.

What i'm doing wrong? Or how can I install it with the file from:

https://github.com/ptulp/NmeaConvert...Plugin_0.2.pkg

[petter5]

Originally Posted by Swokey

What i'm doing wrong? Or how can I install it with the file from:

https://github.com/ptulp/NmeaConvert...Plugin_0.2.pkg

You can't install that on a raspberry - the pkg is a Mac os package. For Raspberry you will need the DEB package.

[rgleason]

Not sure what's going on in my windows7 laptop, even with the previous version reinstalled it keeps crashing O.

I was having troubles earlier, and due to testing many plugins that were changing, and many new updates to O, it was crashing.
I removed Opencpn and all plugins, cleaned and updated the computer. Rebooted several times. Cleaned the registry, optimized the disks, etc.
Then took a breath and installed a nice fresh clean new version of O 4.2.0 without the old opencpn.ini!

It worked beautifully. Then I added in my chart directories and Chart Downloader settings and pretty soon was back to normal.

[ptulp]

Originally Posted by Swokey

Hi,

I had the problem with the pressure. Now I'm new to linux and try to install the update.

First I tried the following on my PI2:

git clone git://github.com/RooieDirk/NmeaConverter_pi.git

mkdir NmeaConverter_pi/build
cd NmeaConverter_pi/build
cmake ..
cmake --build .
make
sudo make install

But after opening OpenCPN, the nmea converter is not installed.

What i'm doing wrong? Or how can I install it with the file from:

https://github.com/ptulp/NmeaConvert...Plugin_0.2.pkg

Try the "make package" i.s.o "sudo make install".
This will create the deb file in the build directory.
Then you can install the deb package.

[rooiedirk]

@swokey
For make install to work it needs to now where OpenCPN is installed. This works best by copying the source files into the OpenCPN source files, and then compile/instaqll O. Then all the plugins will compile and install also.
For now the easy way is copy the compiled "libnmeaconverter_pi.so" into the OpenCPN plugin folder. (/usr/local/lib/opencpn on my machine but could also be /usr/lib/opencpn)
You need to be root to do so.

[Swokey]

Originally Posted by rooiedirk

@swokey
For make install to work it needs to now where OpenCPN is installed. This works best by copying the source files into the OpenCPN source files, and then compile/instaqll O. Then all the plugins will compile and install also.
For now the easy way is copy the compiled "libnmeaconverter_pi.so" into the OpenCPN plugin folder. (/usr/local/lib/opencpn on my machine but could also be /usr/lib/opencpn)
You need to be root to do so.

Thanks, after moving the file to /usr/lib/opencpn the plugin is working. It's also showing the right pressure now.

[Swokey]

I have already two lines in the NMEA converter plugin. Now I want to add a third line, but that overwrites the first line.

Can only 2 lines be added to this plugin?

[rgleason]

Dirk will be responding to you about more lines and we may need to recompile. I wonder if a standard separater will work like a colon or tab.
Meanwhile, perhaps you would share the three lines you would like to use, along with a brief description of what you wish to do, and I will add them as examples in the user manual.
Thanks.