Nmea4Wifi - 4 inputs Multiplexer

Discussion and support for the Nmea2Wifi multiplexer - a 2-input Nmea 0183 wifi multiplexer.
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Luis Sa
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Posts: 111
Joined: Thu May 04, 2017 4:12 am

Nmea4Wifi - 4 inputs Multiplexer

Post by Luis Sa » Sat Oct 27, 2018 3:39 am

Hello,

I am developing a Nmea 0183 multiplexer based on the 2-core ESP32 processor board. Sailors or any one with interests in electronics may wish to participate in a tests that I am carrying out. For that purpose I still have a couple of PCBs that I can send to interested persons for a small cost. Please email me if interested.

The schematic diagram is here and the firmware is available in this file: NMEA4WIFIV15.BIN. The settings web page is this one.

The multiplexer has an user interface very similar to the existing Nmea2Wifi but includes some enhancements. These are the main characteristics:

- bidirectional data transfer (from wired ports to wifi and vice versa).
- 4 input Nmea 0183 opto isolated ports with baud rates adjustable from 4800 up to 38400.
- 1 input of the 4 inputs can read SeaTalk1 datagrams and translate into Nmea 0183.
- 1 RS422 output with adjustable baud rate from 4800 up to 38400.
- Nmea 0183 sentence filtering on each serial input port (including UDP and TCP) and on the serial output port.
- support for UDP and TCP protocols.
- 6 Leds to show the operation status.

The PCB that I used during this development phase is shown here:

board15.jpg

Regards, Luis

Svante
Posts: 4
Joined: Tue Jun 26, 2018 6:21 pm

Re: Nmea4Wifi - 4 inputs Multiplexer

Post by Svante » Tue Nov 13, 2018 7:51 pm

Hej Luis.

If it is nmea2000 i am interested.
Your nmea0183-device worked perfekt for us the whole summer ;-)

Best regards
Svante Stenberg

Luis Sa
Site Admin
Posts: 111
Joined: Thu May 04, 2017 4:12 am

Re: Nmea4Wifi - 4 inputs Multiplexer

Post by Luis Sa » Wed Nov 14, 2018 12:05 am

Hello,

Thank you for your interest. Not for Nmea2K, sorry. Only SeaTalk1 >>> Nmea 0183.

Best Regards, Luis

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