serial port magic?

Software Weather Display for Linux
1

What’s the magic trick to getting the vantage pro to talk to a linux serial port?

I understand parameters are 19200, 8n1, no handshaking?

I am trying out the Weather Display for Linux, and even tho it says “Vantage Pro Comm Port OK” in the titlebar, the readings displayed are either bogus or blank.

The users I run under are in the tty group
tty group on both /var/lock and /dev/ttyS*
both /var/lock and /dev/ttyS* have 775 permissions.

I have tried the loopback and plug with minicom on /dev/ttyS0, and I get echoed characters back.

I’ve tried sending the TEST string to the VP from minicom after hitting a few times to wake it up. No response, cursor doesn’t even move.

I tried using stty to set the port parameters

$ stty -F/dev/ttyS0
speed 19200 baud; line = 0;
intr = ; quit = ; erase = ; kill = ; eof = ; start = ;
stop = ; susp = ; rprnt = ; werase = ; lnext = ;
flush = ; min = 0; time = 10;
ignbrk -brkint -icrnl -imaxbel
-opost -onlcr
-isig -icanon -iexten -echo -echoe -echok -echoctl -echoke

I’ve tried joe jaworski’s vpweather cli

vproweather-0.1 $ ./vproweather -m --baud-rate=19200 /dev/ttyS0
vproweather Can’t wake up weather station- no response.
vproweather-0.1 $

I’ve gone all the way down to 2400 baud (including setting the baud on the VP console), same [lack of] results.

I even borrowed a friend’s win98 laptop, and installed the Davis software, and it seemed to be able to communicate just fine.

What am I missing here?

Any other thoughts?

2

what version of WD linux and what distro?

3

Hi, thanks for answering.

WD is ver 3.6, unzipped over the untar of 3.4.

Distros are gentoo 1.4, current as of Friday, and Mandrake 10, also current as of Friday.

4

does it actually say version 3.6 on the title bar?.. i know the new version has the actual WeatherD is in like a /home/windy/wdisplayprogram/delphi5/ folder when you extract it… i also had to change the permissions on the ttyS0 to 777… it would not work for me under 775

5
a /home/windy/wdisplayprogram/delphi5/ folder when you extract it....

oh, thats becuase i zipped it on the linux system, and FTP’d it from there…
so, is that a problem though?
i.e you can just though set the location?

6
a /home/windy/wdisplayprogram/delphi5/ folder when you extract it....

oh, thats becuase i zipped it on the linux system, and FTP’d it from there…
so, is that a problem though?
i.e you can just though set the location?


no, when you actually open the zip, that is what is inside of the zip. it is not a big deal, it could be if he forgot just extract the weatherD and not that entire directory