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Old 23-09-2024, 08:05   #1
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Location: Aarhus, Denmark
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Waypoint via wifi to N2k

Hi.
Is it still not possible to send waypoint via WIFI from Opencpn?
I am considering using a QK-A034-b in order to send waypoint/steering info to N2K/STNG via network. This way have it available in my Axiom MFD.
As I prefer to do the sailplaning in Opencpn rather than in the MFD.

I am aware of this:
https://opencpn.org/wiki/dokuwiki/do...pt-rte-over-ip.

Just wondering if it still applies in the latest ver?

Br.
Leif
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Old 23-09-2024, 08:20   #2
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Re: Waypoint via wifi to N2k

Quote:
Originally Posted by Faraway-dk View Post
Hi.
Is it still not possible to send waypoint via WIFI from Opencpn?
I am considering using a QK-A034-b in order to send waypoint/steering info to N2K/STNG via network. This way have it available in my Axiom MFD.
As I prefer to do the sailplaning in Opencpn rather than in the MFD.

I am aware of this:
https://opencpn.org/wiki/dokuwiki/do...pt-rte-over-ip.

Just wondering if it still applies in the latest ver?

Br.
Leif
It should be possible over 0183 via an 0183->n2k converter. Most definitely not over n2k.

I'm not able to test, but the option is there. The linked manual page must be outdated.
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Old 23-09-2024, 18:16   #3
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Re: Waypoint via wifi to N2k

Hi Warren
Thx.
What I am after is function that on the fly will send the active waypoint in a route to the NMEA 2000 network.
What I have in mind is something similar to "output on this port to auto pilot".

The A034-B can convert the NMEA 0183 data received via WiFi to NMEA 2000 PGNs and can output these to the NMEA 2000 network.

Br.
Leif
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Old 23-09-2024, 18:37   #4
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Re: Waypoint via wifi to N2k

Quote:
Originally Posted by Faraway-dk View Post
Hi Warren
Thx.
What I am after is function that on the fly will send the active waypoint in a route to the NMEA 2000 network.
What I have in mind is something similar to "output on this port to auto pilot".

The A034-B can convert the NMEA 0183 data received via WiFi to NMEA 2000 PGNs and can output these to the NMEA 2000 network.

Br.
Leif
If your connection is 0183 (as it sounds like it is) then when you activate a route, that route is sent to the autopilot. There is no user interface, it just does that. That works, and I use it myself. You need to activate the autopilot from the AP head, and tell it to follow the route. You can't activate the AP from OpenCPN.

You also need to be sure the connection is set to Send and Receive data, and that you are not filtering out the 0183 sentences. APB, XTE, and RMB, if I recall.
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Old 23-09-2024, 23:33   #5
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Re: Waypoint via wifi to N2k

@Faraway-dk...
You could use the SendActiveRoute JavaScript. Have a look at this thread and the links from it.

This last season I have been running a new script I call FollowOCPN. This is a complete rewrite of SendActiveRoute. It is much simpler and easier to understand, but I have not yet had time to finalise, document and publish it. A task for this winter. When a route is active, it sends over NMEA0183 the following sentences:
  • WPL for each point in the acrive route
  • RTE
  • RMB
  • RMC
  • BOD

Some of this is, of course, built into the OpenCPN autopilot function. But this script could be used by those whose autopilot/MFD is not playing well with the built-in functionality.

If you would like a copy of FollowOCPN as it presently stands, PM me.
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Old 25-09-2024, 13:08   #6
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Re: Waypoint via wifi to N2k

Quote:
Originally Posted by wholybee View Post
If your connection is 0183 (as it sounds like it is) then when you activate a route, that route is sent to the autopilot. There is no user interface, it just does that. That works, and I use it myself. You need to activate the autopilot from the AP head, and tell it to follow the route. You can't activate the AP from OpenCPN.

You also need to be sure the connection is set to Send and Receive data, and that you are not filtering out the 0183 sentences. APB, XTE, and RMB, if I recall.
Hi Warren
I just did a test where OCPN was UDP broadcasting the autopilot sentences RMC, RMB,APB and XTE.
I was able to monitor the sentences on a another device ( not the A034-B ) in the network. Just to test the network output function from OCPN.

When the NMEA sentences are converted to PGN's by the A034-B, I will assume my Axiom MFD will show sterring to the active waypoint.

APB is converted to: 129283,129284
XTE is converted to: 129283
RMC is converted to: 126992, 127258, 129025, 12902
RMB is converted to: 129283,129284
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Old 25-09-2024, 14:00   #7
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Re: Waypoint via wifi to N2k

Quote:
Originally Posted by Faraway-dk View Post
Hi Warren
I just did a test where OCPN was UDP broadcasting the autopilot sentences RMC, RMB,APB and XTE.
I was able to monitor the sentences on a another device ( not the A034-B ) in the network. Just to test the network output function from OCPN.

When the NMEA sentences are converted to PGN's by the A034-B, I will assume my Axiom MFD will show sterring to the active waypoint.

APB is converted to: 129283,129284
XTE is converted to: 129283
RMC is converted to: 126992, 127258, 129025, 12902
RMB is converted to: 129283,129284
Your Axiom likely will not show anything. But, you should see waypoint and XTE information on the autopilot head, and if you go into auto mode, the autopilot should follow the route.

To see it on the Axiom, I think the route needs to be in the Axiom, and the Axiom controlling the AP, not OCPN.
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