Connecting NMEA Wind data from NASA Clipper

[Smartell]

Hi,

I feel that i have narrowed down the problems a bit:

Looking at cat /dev/ttyUSB0 i get:

$WIMWV,78,R,10.9,N,A*3A
$WIMWV,78,R,10.0,N,A*33
$WIMWV,78,R,9.4,N,A*0F
$WIMWV,78,R,8.9,N,A*03
$WIMWV,78,R,8.2,N,A*08
$WIMWV,78,R,7.7,N,A*02
$WIMWV,78,R,6.9,N,A*09
$WIMWV,78,R,6.6,N,A*02
$WIMWV,78,R,6.2,N,A*06
$WIMWV,78,R,5.6,N,A*01
$WIMWV,78,R,5.0,N,A*04
$WIMWV,78,R,4.6,N,A*0E
$WIMWV,78,R,4.4,N,A*02
$WIMWV,78,R,4.2,N,A*04
$WIMWV,78,R,4.0,N,A*06
$WIMWV,78,R,3.9,N,A*08

...but without linefeeds (it overwrites the same row in the terminal window). It looks like i get correct information above with the correct checksums from my NASA mast unit

If i look at  cat /dev/ttyUSB1 (which is my GPS) i get nice new lines for each NMEA message - and that is nicely handled by Kplex, shws up in "Diagnostic" etc

Looking at the auosetup in openplotter  i clearly see that it does not read the NMEA input (available as shown above in the ttyUSB0)  from my mast unit correctly - it messes up the checksum and have a problem finishing the autosetup without hanging

So, the raspberry reads the NMEA input from my mast unit correctly but OpenPlotter sees something else - and can't handle it.

What to do... definitely seems like a quite serious bug to me ...  :-(

In my desperation i have now also installed the latest Noob on a new Pi 3+ and tried it out there, but no joy - exactly the same issues. Reads nicely in ttyUSB0 but noting is received/shown/used in open plotter.

/M

If the Nasa isn't sending line feeds then that's probably not helping or maybe the root cause - have you used node red before? Quite easy, and the debug shows the line feeds which helps and it's quite easy to add them to check if that's what's going on. If you've never used it before someone could talk you through it - node red is great!

Hi Paddy,

No, i have not used Node Red for anything useful yet, just played around a bit with it, looks cool so i will try that. Question is how do i get the live input feed from ttyUSB0 into NodeRed? Anyway, that would just be for debugging (important enough) but not a solution. 

But, I am sure that the OpenPlotter project wants to include also the NASA users in the group of users, so i will trudge on. 

(Line feeds or not...why am i the only one to have this problem w serial input then? How is it possible for others to get it working? )

- I have tried three different RS232/USB adapters, 
- i have tried three different physical old and new Raspberry setups incl the latest and greatest hardware w the latest Noob (W hat support etc)
- i have verified that the mast unit sends valid NMEA messages w correct checksum both in Windows/Putty and in Raspbian/terminal.
- The mast unit is brand new


/M

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I use the Prolific PL2303 chipset USB serial adapters - I've always heard FTDI was better, but these are the cheapest, and therefore what I use.

Instead of USB/Serial adapter maybe you can use the new button to enable the UART on Openplotter 1.0.0 and wire to the TX and RX pins (?) on the PI. This was for use by pypilot but perhaps it can be assigned to kplex. Caution - don't assume I know what I'm talking about.

Saqqara, 

What would the world come to if only prople who knew what they were talking about spoke - it would be an awfully quiet place.

I could probably solve it the UART way but i think that the voltage levels is too high, not TTL. anyway, i would like to solve this the way it is supposed to work. 

My current view is that there is not any problem with the setup i have but there is a problem in OpenPlotter so how do i get the attention of the developers?