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+--- Thread: Need Help hooking up transducer (DST800) (/showthread.php?tid=2343)
Need Help hooking up transducer (DST800) - terestron - 2020-02-18
I have a DST800 Triducer (NMEA 0183) and I am trying to hook it up to my OP V2. I bought a USB to RS422 adapter. I hooked up the wires correctly (R+ and R-). The Recieve LED flashes RED and I have 13V to Transducer. OP sees it in the serial tab. I connected it to serial K via the AUTO at 38400 Baud. In OPEN CPN i added it under connections. But it added it as 4800 baud. but I am getting no response to temp, depth, or speed.
BTW, I am doing this all in my office before I install. It is a RPI V3b+, Serial GPS works fine.
I not well versed in this. I must be missing something.
Can any one help?
Thanks!
Edward
RE: Need Help hooking up transducer (DST800) - Sailoog - 2020-02-19
remove the connection in opencpn, you only need the signal k connection and a unique connection in opencpn (localhost TCP 10110)
RE: Need Help hooking up transducer (DST800) - winkaj - 2020-02-19
(2020-02-19, 06:19 PM)Sailoog Wrote: remove the connection in opencpn, you only need the signal k connection and a unique connection in opencpn (localhost TCP 10110)
last year , with op 1.2 Signal K mis convert the Log , because of the nmea0183 send Nm and Signalk understood it as Meter ..
i used direct nmea0183 to OpenCPN . where it works fine .
Can first test OP2 in the boat after 2.may 2020 .
RE: Need Help hooking up transducer (DST800) - terestron - 2020-02-20
(2020-02-19, 06:19 PM)Sailoog Wrote: remove the connection in opencpn, you only need the signal k connection and a unique connection in opencpn (localhost TCP 10110)
Ok I set it up in OPEN CPN as localhost TCP 10110 and it still does not seem to see the data.
The USB RS422 adapter has a red LED power light and the Rx led is flashing randomly. I know the transducer is NMEA 0183 because they checked it before shipping it to me. I tried baud rate 4800 and 38400.
The check system does not show errors anymore. but still no Depth, speed, or temp info.
GPS works fine. When I do NMEA debug I see the GPS sentences but nothing from transducer.
RE: Need Help hooking up transducer (DST800) - terestron - 2020-02-20
(2020-02-20, 12:34 AM)terestron Wrote:I solved the issue. The data wires needed to be reversed going into the RS422 adapter. Even though they were labeled R+ and R- and I connected the + to +, etc... flipping them solved the issue.(2020-02-19, 06:19 PM)Sailoog Wrote: remove the connection in opencpn, you only need the signal k connection and a unique connection in opencpn (localhost TCP 10110)
Ok I set it up in OPEN CPN as localhost TCP 10110 and it still does not seem to see the data.
The USB RS422 adapter has a red LED power light and the Rx led is flashing randomly. I know the transducer is NMEA 0183 because they checked it before shipping it to me. I tried baud rate 4800 and 38400.
The check system does not show errors anymore. but still no Depth, speed, or temp info.
GPS works fine. When I do NMEA debug I see the GPS sentences but nothing from transducer.
Need Help hooking up transducer (DST800) - holgerw - 2020-02-20
This is normal, signals go from + to -, and retour.
RE: Need Help hooking up transducer (DST800) - tobias.e - 2021-01-22
(2020-02-20, 05:48 PM)holgerw Wrote: This is normal, signals go from + to -, and retour.
Thanks! This comment just helped me a lot.
RE: Need Help hooking up transducer (DST800) - ChDel - 2022-01-14
(2020-02-19, 06:19 PM)Sailoog Wrote: remove the connection in opencpn, you only need the signal k connection and a unique connection in opencpn (localhost TCP 10110)
Is it possible to connect DST810 in bluetooth with Rpi 4B + Openplotter?
thank you
RE: Need Help hooking up transducer (DST800) - holgerw - 2022-01-15
Yes, Bluetooth serial connect should be possible, i tried before with NMEA from an Bluetooth GPS Dongle.
its an little tricky to open the serial bluetooth connection before - but after this is solved you can connet to it like /dev/ttyUSB with Openplotter-serial to make the data available.
Look here for older Reports about "RFCOMM" or "rc.local" to set it up at boot time.
https://forum.openmarine.net/showthread.php?tid=79&highlight=rc.local
But i would prefer real cable connections on an boat, especial so near the waterline.