Adam,
the OZFLARM seem to have the same pin assignment for the Data/Power port as the
"normal" FLARM. I'm looking at paragraph 6 in this document:
http://www.augc.on.net/docs/2120_OzFlarm.pdf
This document has sufficient information to wire a cable between your OZFLARM
and the connector of the MAX232 board. Connect GND, TX and RX between OZFLARM
and MAX232. In addition your OZFLARM needs 12V, which is probably not on the
connector of the MAX232 board.
The nomenclature of RX and TX can be a bit confusing. Maybe because a cable
connects RX on one end to TX on the other end of the cable. And vice versa.
Just think of the direction in which the information is flowing. Nothing will
break if you get RX and TX wrong between the OZFLARM and the MAX232, it just
won't work. Swap the 2 and it should work.
The regular FLARM (not sure about the OZFLARM) is a good source for GPS, air
pressure, and FLARM trafic information. It doesn't give you air speed
information. Air speed, together with ground speed (from GPS) is a very good
basis to calculate wind speed and direction. So if your CAI GPS-NAV provides
air speed, then it's definitely worth connecting to a 2nd IOIO port.
Ronald
-----Ursprüngliche Nachricht-----
Von: "Adam Webb" [a...@adam-webb.com]
Gesendet: Mi. 29.08.2012 21:47
An: xcsoar-user@lists.sourceforge.net
Betreff: [Xcsoar-user] FLARM wiring
Thanks to everyone who replied regarding the sim card in the Dell Streak. I've
ordered everything, so now I'm looking at wiring.
My plan is to wire an IOIO board with max232 into a box etc to make XCSoar talk
to my OZFLARM unit to get GPS and the position of other gliders. I think I have
everything under control bar one thing: when wiring between the serial port and
the FLARM, do I need the RX and TX pins on the serial cable to connect to the
TX/RX pins on the FLARM, or the GPS Out pin? Assuming I am using the extension
port on the OZFLARM (ie it is powered through the usual port), I'm assuming I
don't need any other wires, except perhaps a ground?
I've had a look at http://legalland.free.fr/Tuto.html, and that has confused me
somewhat... they seem to have pins 6&7 on the FLARM unit tx/rx data? Perhaps
they're FLARM is wired differently?
Can anyone help me out by either letting me know, or pointing at where I might
find the answers?
On a separate note, I also have a CAI GPS-NAV in my glider, which I could
potentially wire into XCSoar as well. Can anyone see any reason why this would
be useful, or would it just be over complicating things?
Thanks to anyone who can help.
Adam
-----Ursprüngliche Nachricht Ende-----
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