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Re: [Paparazzi-devel] Antenna Tracker

From: Gareth Roberts
Subject: Re: [Paparazzi-devel] Antenna Tracker
Date: Fri, 26 Nov 2010 15:45:51 -0000
User-agent: Opera Mail/11.00 (Linux)

The antennae tracker did make it out of in_progress, it was just never deleted.
A fixed version is in /sw/ground_segment/cockpit
To compile, make ant_track
This one actually works properly. To fix the build warnings, add GTK RANGE casts on line 200 and 201

+     gtk_range_set_value(GTK_RANGE (azim_scale), ant_azim);
+     gtk_range_set_value(GTK_RANGE (elev_scale), ant_elev);
-     gtk_range_set_value(azim_scale, ant_azim);
-     gtk_range_set_value(elev_scale, ant_elev);

I just tested it and it looks correct - in auto mode, the sliders move to where the servos would be.
Better cancel that pull request!

On Fri, 26 Nov 2010 15:23:54 -0000, Gareth Roberts <address@hidden> wrote:

Guys, I think there is some confusion here.
Pascal wrote an antennae tracker a year or so ago, but it was never moved out of in_progress. There's a few build warnings, but nothing major, and other than that it seems to work. It has a neat little UI, and uses the first two servo outputs of a Pololu usb servo driver to track the aircraft selected in the ID box.

I've written a makefile and filed a pull request against master; if you're impatient you can compile it like this: gcc `pkg-config --cflags --libs gtk+-2.0` -I/usr/include/Ivy/ -livy ant_track_Pololu.c -o ant_track
then run ./ant_track

In other words, there is no need to write a new antennae tracker - if you wanted, you clean up the build warnings on the current one and add any improvements you need.


On Fri, 26 Nov 2010 15:01:56 -0000, Arun Sajeevan <address@hidden> wrote:

Brilliant Rui..We are workin on a similiar project as well. Have u
atarted developing the AATS system? What stage of d project hav u
reached.. We are yet to finalise on da coding and parts... We can
surely cooperate. Keep me posted.

PS: Skyme is not available here.Is der ny other way to contact u?
On 11/26/10, Rui Costa <address@hidden> wrote:
Good news. I'm very interested on the antenna tracker. Because I'm working
on in a UAV project.

Hope have news soon. Maybe we can talk via Skyme. My username is:

Rui Costa

On Fri, Nov 26, 2010 at 1:17 PM, Gareth Roberts <
address@hidden> wrote:

I take back the stuff about using an arduino, those little Pololu boards
look pretty cool!

On Fri, 26 Nov 2010 14:16:19 -0000, Gareth Roberts <
address@hidden> wrote:

There is some code here:

Uses a Pololu board to drive servos. Could probably be easily re-written
to drive an arduino via Firmata.
I think Chris did some work on this as well.

On Fri, 26 Nov 2010 14:10:36 -0000, Rui Costa <address@hidden>


Sometime ago I saw a video about an Antenna Tracker. Is there anybody
an antenna tracker based on paparazzi autopilot working?

If no. There is anyone that would like to work on that project?

Rui Costa

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