[aprssig] Davis Vantage Vue and RF APRS

[David Rogers]

I had a friend who made an adapter to connect in the back of the display console. There was some kind of authentication or handshaking that required adding an EEPROM to the adapter and getting the correct contents loaded into the EEPROM. 

I initially attempted a similar project, but ended up giving up and using a WeatherLink Live to get the data to the internet, then pulling the data down to my APRS node to send over RF.

David

On Wed, Feb 22, 2023, at 12:09 PM, Jason Rausch wrote:
> Well, maybe I should have researched JUST a little more.  I found out that the adapter plugs into a multi-pin expansion port on the Davis display console.  I found a pinout for the port and there is TTL level serial, along with ground and +VCC to power the adapter.  Looks like an easy ST3232 TTL-Serial adapter mod job using a PCB.  I'm curious to see what format the serial data is coming from the port.
> 
> Jason Rausch K4APR
> www.ke4nyv.com
> 
> 
> On Wednesday, February 22, 2023 at 03:06:23 PM EST, Jason Rausch <jason at ke4nyv.com> wrote:
> 
> 
> Does anyone on the list have any experience with getting a Davis Vantage Vue weather station on RF APRS?  I am trying to help another guy get this going.  From what I have found out so far, it looks like Davis makes an (RS232 Datalogger) that looks like some kind of TTL to RS232 adapter going from an RJ45 to a terminal block that I guess is putting out RS232 levels and still needs a cut off serial cable or something similar to complete the wiring job.  The major problem with this is, the adapter is another $225.
> 
> Has anyone found a better (lower cost) option.  I see that WeeWX running on a Pi has native USB support for the Davis and even feeds to the CWOP servers, but I can't find any support for APRS whether through a direct TCP/IP feed to APRS-IS and/or a way to reformat the data to a Peet Bros or other similar format and then spit it back out at serial (TTL or RS232) levels that I can then feed to an OpenTracker or similar APRS device to get the data to the actual RF network.
> 
> Any guidance would be great!
> 
> Jason Rausch K4APR
> www.ke4nyv.com
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