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atmega4808 chip to multiplex serial/nmea0183 data
#1
How do others get nmea0183 data into a raspberry pi? 

I have too many usb/serial connections and need more.........

this chip looks interesting, 4 serial lines it says and low power, the system is on 24/7 on the boat so every mA counts...

https://www.youtube.com/watch?v=rQXAJ81b...reasSpiess
https://datasheet.lcsc.com/lcsc/22011417...340466.pdf

Available from JLCPCB. The extra data I want isn't really time sensitive, victron solar controllers/smartshunts so reading from one device at a time isn't a problem. 

Tempting to get some boards  made by jlcpcb using those chips but any experience of either those chips or another low power way to get multiple serial into a Pi would be very interesting, ta.  Cool
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#2
(2022-03-17, 01:12 PM)PaddyB Wrote: How do others get nmea0183 data into a raspberry pi? 

I have too many usb/serial connections and need more.........

this chip looks interesting, 4 serial lines it says and low power, the system is on 24/7 on the boat so every mA counts...

https://www.youtube.com/watch?v=rQXAJ81b...reasSpiess
https://datasheet.lcsc.com/lcsc/22011417...340466.pdf

Available from JLCPCB. The extra data I want isn't really time sensitive, victron solar controllers/smartshunts so reading from one device at a time isn't a problem. 

Tempting to get some boards  made by jlcpcb using those chips but any experience of either those chips or another low power way to get multiple serial into a Pi would be very interesting, ta.  Cool
Have you looked int the marine control server? I believe it has up to 6 0183 inputs or outputs
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#3
(2022-03-17, 05:39 PM)John1270 Wrote: Have you looked int the marine control server? I believe it has up to 6 0183 inputs or outputs

Very interesting. And useful, thanks.
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