Problem with UDP transmission

Discussion and support for the Nmea3Wifi multiplexer - a 2-input Nmea 0183 wifi multiplexer with a full bidirectional SeaTalk1 input/output port.
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yhello
Posts: 1
Joined: Thu Jul 27, 2023 5:50 pm

Problem with UDP transmission

Post by yhello » Fri Jul 28, 2023 1:37 pm

Hi,
I have a strange problem with my NMEA3wifi.
I connected my VHF/GPS/AIS to P1 using NMEA0183 cable connection. I setup the device to send the sentences in UDP over the wifi on port 2000 and my OpenCPN is detect all sentences (GPS and AIS). See the configuration here :
NMEA3wifi configuration.jpeg
Then I tried to send to the device the anemometer data via also UDP port 2000 connecting the anemometer to the device through wifi device AP. I see all sentences (GPS, AIS and anemometer) on the configuration page using debug page :
NMEA3wifi debug.jpeg
But I don't see anemometer sentences on OpenCPN (which is UDP open on port 2000 and it still see the GPS/AIS sentences).
Any idea what's wrong with my configuration ?
Thanks,
Yann

Luis Sa
Site Admin
Posts: 848
Joined: Thu May 04, 2017 4:12 am

Re: Problem with UDP transmission

Post by Luis Sa » Fri Jul 28, 2023 3:42 pm

Hello,

The multiplexer can not send out on UDP what it receives on UDP. There is no UDP>UDP routing box. Are you using OpenCPN only? As far as i know you could send your wind data by UDP directly to OpenCPN. Or you could route UDP>TCP and create e receiving TCP connection on OpenCPN.

Regards, Luis

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