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Old 14-02-2017, 17:09   #1
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Heel and Pitch

I added the MPU 9250 i2C sensor to openplotter and it works well. (very accurate) Compass shows up on dashboard (once I added it) but heel and pitch will not? Both show up via the inspector though?
Any ideas.
Openplotter v8 Rpi3b
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Old 17-02-2017, 08:19   #2
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Re: Heel and Pitch

solosail...
OCPN dashboard reads Heel and Pitch when transmitted in the NMEA 0183 XDR sentence.

The XDR looks like this:
Code:
/*
   ** XDR - Transducer Measurement
   **
   **        1 2   3 4            n
   **        | |   | |            |
   ** $--XDR,a,x.x,a,c--c, ..... *hh<CR><LF>
   **
   ** Field Number: 
   **  1) Transducer Type
   **  2) Measurement Data 
   **  3) Unit of Measurement, Celcius
   **  4) Name of transducer
   **  ...
   **  n) Checksum
   ** There may be any number of quadruplets like this, each describing a sensor. The last field will be a checksum as usual.
If 1) Type is "A" and
4) Name is "PTCH" or
4) Name is "ROLL" corresponding
2) data (degrees) will be shown in the Dashboard instruments Pitch and/or Heel.
Positive Pitch is Nose up. Positive Roll is to Starboard.
e.g. $IIXDR,A,5.0,,PTCH,A,12.0,,ROLL,*hh<CR><LF>
Will give you 5 degr pitch and 12 degr. heel.
Håkan
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Old 21-02-2017, 11:12   #3
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Re: Heel and Pitch

My free autopilot relays the mpu9255 heel pitch and compass heading to opencpn. It reads autopilot route commands and steers to course...

https://drive.google.com/file/d/0B5E...9YNlhlaFU/view
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Old 22-02-2017, 05:44   #4
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Re: Heel and Pitch

Quote:
Originally Posted by boat_alexandra View Post
My free autopilot relays the mpu9255 heel pitch and compass heading to opencpn. It reads autopilot route commands and steers to course...

https://drive.google.com/file/d/0B5E...9YNlhlaFU/view
The plant aboard, great
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Old 28-02-2017, 12:15   #5
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Re: Heel and Pitch

Quote:
Originally Posted by Hakan View Post
solosail...
OCPN dashboard reads Heel and Pitch when transmitted in the NMEA 0183 XDR sentence.

The XDR looks like this:
Code:
/*
   ** XDR - Transducer Measurement
   **
   **        1 2   3 4            n
   **        | |   | |            |
   ** $--XDR,a,x.x,a,c--c, ..... *hh<CR><LF>
   **
   ** Field Number: 
   **  1) Transducer Type
   **  2) Measurement Data 
   **  3) Unit of Measurement, Celcius
   **  4) Name of transducer
   **  ...
   **  n) Checksum
   ** There may be any number of quadruplets like this, each describing a sensor. The last field will be a checksum as usual.
If 1) Type is "A" and
4) Name is "PTCH" or
4) Name is "ROLL" corresponding
2) data (degrees) will be shown in the Dashboard instruments Pitch and/or Heel.
Positive Pitch is Nose up. Positive Roll is to Starboard.
e.g. $IIXDR,A,5.0,,PTCH,A,12.0,,ROLL,*hh<CR><LF>
Will give you 5 degr pitch and 12 degr. heel.
Håkan
When viewing the data stream via the inspector window it shows up as:
$OSXDR,A,2.1,D,I2CX,A-62.7,D,I2CY*4E
There is not a "PTCH" or "ROLL" label. However the inspector window interprets it correctly as Heel and Pitch? BUT NOTHING SHOWS UP IN THE DASH BOARD... other than heading?
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Old 28-02-2017, 13:43   #6
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Re: Heel and Pitch

solosail..
"BUT NOTHING SHOWS UP IN THE DASH BOARD." No, of course, Dashboard interprets as of my description above so your message is not understood.
The XDR sentence is not official stated in more than the structure. What's in the data fields is up to each and every proprietor. Why Dashboard is set up as it is I don't remember but may be adapted to Signal-K? Anyone else to fill in here?
Håkan
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Old 01-03-2017, 16:39   #7
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Re: Heel and Pitch

Quote:
Originally Posted by Hakan View Post
solosail..
"BUT NOTHING SHOWS UP IN THE DASH BOARD." No, of course, Dashboard interprets as of my description above so your message is not understood.
The XDR sentence is not official stated in more than the structure. What's in the data fields is up to each and every proprietor. Why Dashboard is set up as it is I don't remember but may be adapted to Signal-K? Anyone else to fill in here?
Håkan
Humm... I wonder why the programer who developed the Inspector window (which properly recognises pitch and heel) but chose not to use the same format allowance for the dashboard? Quite frustrating!
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Old 01-03-2017, 18:45   #8
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Re: Heel and Pitch

Quote:
Originally Posted by Hakan View Post
solosail..
"BUT NOTHING SHOWS UP IN THE DASH BOARD." No, of course, Dashboard interprets as of my description above so your message is not understood.
The XDR sentence is not official stated in more than the structure. What's in the data fields is up to each and every proprietor. Why Dashboard is set up as it is I don't remember but may be adapted to Signal-K? Anyone else to fill in here?
Håkan
Can you recommend a specific (source) sensor (that works!!!) for mag heading pitch heel temp and pressure? THANKS!
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Old 03-03-2017, 00:41   #9
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Re: Heel and Pitch

Solosail
No, sorry I've never bought or checked market for that. I've my home built compass unit out of a compass circuit and a Arduino sending the NMEA messages to my system. The circuit also submits heel and pitch and I adapted my code to present OCPN.
But someone did the Dashboard code and may know?
BTW, excuse my limitations but how do I understand "inspector window"? Could you describe it more?
Håkan
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Old 03-03-2017, 03:28   #10
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Re: Heel and Pitch

"The inspector" is a main component of OpenPlotter to facilitate the connection of different data sources.
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Old 03-03-2017, 04:00   #11
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Re: Heel and Pitch

OK-thanks
But - if you have Openplotter isn't it possible to use a tool there to transform the Heel/Pitch messages you've got there to a format suitable for Dashboard?
I have not used Openplotter myself but I think I've read something about that.
Håkan
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Old 08-03-2017, 08:49   #12
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Re: Heel and Pitch

Quote:
Originally Posted by Hakan View Post
Solosail
No, sorry I've never bought or checked market for that. I've my home built compass unit out of a compass circuit and a Arduino sending the NMEA messages to my system. The circuit also submits heel and pitch and I adapted my code to present OCPN.
But someone did the Dashboard code and may know?
BTW, excuse my limitations but how do I understand "inspector window"? Could you describe it more?
Håkan
Thanks Hakan!
Here is a look at the Inspector window... note that it recognises heel and pitch!?
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Old 17-05-2017, 20:30   #13
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Re: Heel and Pitch

exactly what I was looking for, glad I'm not the only one getting frustrated.
I'm running open plotter on an RPI3, inspector see's heel and pitch, and compass, but for the life of me I can't get it into opencpn!
I will say, I'm completely new to all this, but really want to understand the RPI and how opencpn "talks" to the outside world.
But if anyone can shed any light on how to make this work....beers on me
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Old 18-05-2017, 01:06   #14
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Re: Heel and Pitch

Quote:
Originally Posted by vapochilled View Post
exactly what I was looking for, glad I'm not the only one getting frustrated.
I'm running open plotter on an RPI3, inspector see's heel and pitch, and compass, but for the life of me I can't get it into opencpn!
I will say, I'm completely new to all this, but really want to understand the RPI and how opencpn "talks" to the outside world.
But if anyone can shed any light on how to make this work....beers on me
Here goes. I got this running using OpenPlotter the other day.

This uses the latest Openplotter 0.11.6a I think it is.

Here is my I2C page
Click image for larger version

Name:	i2c.jpg
Views:	75
Size:	85.6 KB
ID:	147998
You edit each sensor by double clicking it and setting its Signal K sentence, rate and offset.

Go to Tools >> NMEA 0183 generator
Click image for larger version

Name:	<a title=generator.jpg Views: 76 Size: 72.2 KB ID: 147999" style="margin: 2px" />

Click Add and make and entry like this one for Roll.. not the units are from signal K are funny and need to multiplied by 100!
Click image for larger version

Name:	roll.jpg
Views:	68
Size:	76.6 KB
ID:	148000

Do the same me for each axis and your good.
Click image for larger version

Name:	ocpn.jpg
Views:	63
Size:	103.3 KB
ID:	148001
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Old 18-05-2017, 04:20   #15
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Re: Heel and Pitch

Greetings and welcome aboard the CF, vapochilled.
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