About

Gender

Male


Location

Saint-Petersburg


About Me:

Software engineer.


Please tell us a bit about your UAV interest

Just a hobby.


Activity Feed

Andrew Brygin posted a discussion in ArduPilot (legacy) User Group
I am trying to tune the ArduPilot for Bevrc X-5 plane. At the moment I am playing with roll P gain and trying to achieve acceptable stability in FBW mode. Also, I am trying to overcome the plane peculiarities: he has tendency to roll in positive…
Jun 5, 2012
Andrew Brygin replied to Evan Evans's discussion Ardupilot and Aruimu in ArduPilot (legacy) User Group
"Hello Evan,
 
 I use exactly same configuration: ArduPilot + ArduIMU + MTK gps,
 and kind of home-brewed OSD to visualize ArduPilot output.
 Sometimes I observe the same behavior: solid blue led on AP board
 (what indicates that AP thinks that it…"
Aug 25, 2011
Andrew Brygin commented on Jason Short's blog post Ardupilot Lives
"In order to get ArduPilot_2_8 compiled with GPS_PROTOCOL_IMU, I needed to make following changes:
* add gps driver initialization to lines 54 -57:
#elif GPS_PROTOCOL == GPS_PROTOCOL_IMU        AP_GPS_IMU     g_gps_driver(&Serial);
* replace obsolete…"
May 11, 2011
Andrew Brygin replied to Matthew Lai's discussion ArduIMU+ V2 and LS20031 GPS
"Hi Matthew,

I am very interested in your investigation, because I also have LS20031 module and I am going to use it
with ArduIMU board.

Is it possible that 2.5v is too low voltage? The LS20031 spec says that minimum input voltage is 3v.
You could…"
Sep 3, 2010
Andrew Brygin replied to Andrew Brygin's discussion NMEA gps with AP 2.7
"Thanks, Jason, I will try to reduce the nmea string buffer.

In fact, I have already moved in same direction: with emptied init_gps() and GSC_NONE,
nmea gps works fine. I have noticed that if size of result code is less than 26Kb, everything
works…"
Aug 3, 2010
Andrew Brygin replied to Andrew Brygin's discussion NMEA gps with AP 2.7
"Hans, thanks for the confirmation.

Jason, thanks for the fix.

However, from my point of view the missed semicolon is a minor problem. Main issue seems to be
an AP hang at initialization phase, when NMEA gps is enabled.
I found that removing any…"
Aug 2, 2010
Andrew Brygin posted a discussion
I tried to use NMEA gps with AP2.7 (svn revision 1272) and run into a strange problem:if I set GPS_PROTOCOL to 0, and load resulting code into AP, then AP failed to init.In the serial monitor I can see only few first lines of the initialization…
Aug 1, 2010
Andrew Brygin posted a discussion
 I have tried to update AP sources, and found that revision 1232 introduces strange throttle behavior: when I switch to satbilze or fbw_a mode, motor spins with full speed (disregard throttle stick position). It works fine in manual mode though…
Jul 28, 2010