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Raymarine Seatalk
#11
I've studied it off and on over the past couple of years. The ESP32, like the ESP8266, doesn't apparently have UARTs that can be set to 9 data bits. The Arduino is capable of 9 bit data, hence the availability of the 9-Bit Serial library for it.

Have a look here at the uart_word_length_t constant:
https://esp-idf.readthedocs.io/en/latest...parameters

That would mean that you would have to bit-bang, which I'm sure the ESP32 has more than enough horsepower to do. I've tried a couple of experiments with the ESP8266 with no success.

Then of course there's this, which seems to contradict the IDE documentation and provide a means for setting the UART to 9 bits!

https://github.com/whitecatboard/Lua-RTO...ART-Module
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#12
Anyone have a working arduino sketch to share?
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#13
Berrizeta has a lot of good stuff.

https://berreizeta.blogspot.com/
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#14
Gadgetpool Seatalk converters


Me,  I'm truggeling  on what to choose, between the SeaTalk NMEA Bridge128SD , wich allso has Seatalk autopilot control, or the Multiplexer wich has 4 NMEA in, and one  NMEA out.

 .manitu
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