Cheap diy nmea to wifi adaptor - tested and working

Ok Thus I received the USR RS485: 610
And it works !!!!!!!!!!!!!!!!!!!!!!!!!!!! :) :cool:

How to:
Read first:
NMEA 0183 - Wikipedia
RS-485 - Wikipedia
My AIS unit: https://em-trak.com/wp-content/uploads/2013/06/em-trak-B100-manual.pdf
The serial-wifi server: http://www.usriot.com/Down/WIFI/wifi-232-Convert-Server-V2.0.3-EN.pdf

Simply connect the high speed NMEA 0183 data send wires to the wifi unit. (Brown= + connect to terminal B)
(Blue = - connect to terminal A) Check your manual colours may differ.
I connected the ground terminal to ships negative not sure if needed.
Now you should see the RXD LED on the wifi unit flashing. Thus showing it's receiving data.
Set up the wifi server via its IP adress in your browser.(default= 10.10.100.254) And set baud rate to same as your AIS unit. 38400 in my case. This can be different, again check your manual. My AIS unit can also use 4800 when I use different wires.

Set up Open CPN to receive setttings: network, TCP, IP 10.10.100.254, port 8899, baud rate 38400.
And be patient it takes a few minutes to make the first connection. But its fast once up and running.
Hi
Working to set up a similar setup based on an old AIS unit. This has a AUX display port that is NMEA0183 on top od RS483.
I use a similar wifi server like yours i.e. Industrial Grade Serial Server RS232/485 To WiFi and Ethernet, Modbus Gateway, MQTT Gateway, Metal Case, Wail-mount And Rail-mount Support, Optional PoE Function | RS232/485 TO WIFI ETH (B)
I have all the config as yours but dont get anything on Open CPn. I installed NMEA Dashboard app on the mobile and now the funny thing comes as i seems to receive corrupted data.
somehing like this....

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16:50:46 INFO Starting TCP stream on InternetAddress('10.10.100.254', IPv4):8899

16:51:13 WARNING Error parsing Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;ë ™™ u?_ ‡ YsŸ'—] ƒ— _ŸŸ§Ÿ« åë [µõ m ŸŸŸ ›™§ŸŸ“§}§S§}mY‹¿q5#5 ='¿3=-' 5«Ÿ—åë [µõ m ŸŸŸ ›—§ŸŸ“§S§S§}mY‹¿q5#5 ='¿3=-' 5« —åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë o_[ªWÖZvë;;;ëËkûj«ý} ‡ YsŸ'—] ƒ— ŸŸŸŸ§Ÿ«™}åë [µõ m ŸŸŸŸŸ“§Ÿ›•§}§S§}mY‹¿u 5 #='¿u_sY¿' Message is not marked with $

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I pushed baud rate to 2400 and use cat5 twisted pair wire of 50cm.

Not sure what else to try. I checked the shield and GND but they dont seem to impact anything
Thanks for any hint
 
thanks, I tried also those without success. Funny thing is that i can configure the baud on both ends. But even when aligned its not working
surpriiiiiiiiise. After troubleshooting and excluding other faultz areas, the Wifi vendor provided a new FW that resolved the issue
 
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