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  • Dec 27 2016 20:06

    tumbili on master

    Update SUMMARY.md Create uart-ulanding-radar.md Update uart-ulanding-radar.md and 2 more (compare)

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Encountering a silly problem. I have downloaded the latest daily build of QGC(2017-06-17) and from there installed PX4 firmware v1.6.3 into my board. But after rebooting in the summary tab QGC is showing my firmware version as v1.6.1dev. What is the problem? How can I be sure about my firmware version?


Actually the problem is if I upload the latest stable release from QGC via "firmware -> PX4 Flightstack -> stable release" QGC does all the procedures(download + erase + upload). But when board reboots, somehow it restores previous uploaded version(Or QGC fakes everything). But if I upload the firmware by downloading releases from github and doing "firmware -> PX4 Flightstack -> custom firmware" everything works just fine. Is it a QGC bug?

I concur. Mine was QGroundControl Development HEAD:54c92f75c 2017-06-22 02:20:17 -0300. I decided to try Custom Firmware so I downloaded the Stable Firmware.zip but there are 13 PX4 files in there. Which one is the stable verison for Quad Plane and Quad Ranger? Any assistance or direction is highly appreciated.

Hi, I'm working with px4 for NuttX (Pixhawk) and while I'm compiling, all warnings are treated as errors, how can I turn this behaviour off (not for contributing, but for developing by myself)?
Hi, just a short question to the experts: Is failsafe mode published via MAVLINK somehow?
Sorry, wrong thread
Deniz Kalaslioglu
Hello everyone, has anyone tried this long Wi-fi Broadcast as instructed on the Dev Guide? Although I have managed to set up the wi-fi antennas as instructed and receiving UDP packets from the TX, I can't seem to display the video on the RX side. Is it possible that the person who have written the page has more info on this topic???
Is the Next-Gen MS5525 Airspeed Sensor supported by PX4 Pro? https://store.mrobotics.io/mRo-Next-Gen-MS5525-Airspeed-Sensor-NEW-p/mro-ms5525v2-mr.htm
The flight plot cannot open ulog files, could someone give some help
Hi everybody,I have question about read RPM of OS motor in mission planner. For test I connect pwm of rc receiver to AUX 5 and enable RPM1, but I can't read it. Dose anyone work correctly or can help me?
Is the pwm of rc receiver different between rpm sensor?
I forgot that to tell, I disabled Relay parameter for AUX5
And I have a pixhawk :-) :-)
Vlad Radulescu
This message was deleted
Does anyone know did the files in Firmware/src/modules/px4iofirmware works or how does it works? Since this folder is not contained in nuttx_px4fmu-v2_default.cmake
Can anyone tell me what could have been wrong with this accident: http://bit.ly/2vfFkM7 - The Octocopter just flipped. ESCs were calibrated. I checked the CW/CCW configuration, seems right. Pixhawk calibration seemed right. Hopefully someone experienced can tell what went wrong?
Seems like that video link does not work: Here is the correct one: http://bit.ly/2w3hvoz
Hi, someone know what is Companion Link in the param SYS_COMPANION, please ? It's enable onboard's mavlink stream but I don't understand what is this... :/
@pythonmobile It's look like propellers are in the wrong way
@ptit-tom indeed there was a cw-ccw problem. It's fixed. Thanks.
Hi!, can anyone tell me how to add a camera in default iris gazebo sitl? I want to control it with mavros
Sander Smeets
PX4 has moved to http://slack.px4.io/
Yash Mulgaonkar
Hey Guys, is the FMUv5 hardware specs been released?
Hello , does anyone have used the dronekit to send mocap data to px4? I am a newer, please help ! just a example is very good ! thank you
Anyone familiar with setting up multiple UDP ports to control multiple vehicles in SITL jmavsim?
hi, all. i build firmware of pixhawk with change rcS in init.d folder and upload to pixhawk, but pixhawk can not start up correctly and usb port after 5 secends disconnected, dose anyone can help me please. how can reset pixhawk or other way to upload correct firmware ?
please help
Anyone have issues where certain modules in firmware don't get uploaded to the pixhawk mini?
sander smeets; does pix hawk influence throttle of a flight or it is just used to calibrate the throttle ..also tel if not pix hawk ,does the companion computer can influence throttle during flight ?
anybody can help me with the above question ...
Hello everyone , we customized a program in PIXhawk which is used in quadcopter , and now do we need to re-programme it if we use the same in hexa/octa?
Vasily Evseenko
Hi, I've updated wifibroadcast article to sync with latest release. PX4/Devguide#321
Hi, at the moment, we have a lot of trouble to flash the pixracer out of a Ubuntu virtual machine or from Windows. It doesn't matter, if we use the upload command or QGroundControl. It stops during the upload phase nearly all the time. Only a pure Ubuntu version works. Did anybody have a workaround for that problem?
CAn pix hawk replace PX4 for autonomous drones .?
Sry can pixracer replace px4 ?
Hadi Ahrovani
Multi-Vehicle Simulation
this tutorial say "source your environment" and then enter "roslaunch px4 multi_uav_mavros_sitl.launch":
output is:
roslaunch px4 multi_uav_mavros_sitl.launch
... logging to /home/cv/.ros/log/0dfb88da-e966-11e7-90f0-71f1019dd856/roslaunch-ubuntu-44603.log
Checking log directory for disk usage. This may take awhile.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

Usage: xacro.py [options] <input>

xacro.py: error: expected exactly one input file as argument
while processing /home/cv/src/Firmware/launch/single_vehcile_spawn.launch:
Invalid <param> tag: Cannot load command parameter [iris_1_sdf]: command [/opt/ros/kinetic/share/xacro/xacro.py /home/cv/src/Firmware/Tools/sitl_gazebo/models/rotors_description/urdf/iris_base.xacro rotors_description_dir:=/home/cv/src/Firmware/Tools/sitl_gazebo/models/rotors_description mavlink_udp_port:=14560 > iris_1.urdf ; 'gz sdf -p iris_1.urdf'] returned with code [2]. 

Param xml is <param command="$(arg cmd)" name="$(arg vehicle)_$(arg ID)_sdf"/>
The traceback for the exception was written to the log file
Hello everyone, I need to create a new airframe
But I don't know how to adjust mixer values
for example servo limiting, tail BLDC adjusting etc. if anyone knows please send a message to me
Hi friends,,,, Has anyone worked in Single copter? I am working on pixhawk mini with px4fmu-v2_lpe firmware and finding a bit struggle in PID tuning for that. Will appreciate your all suggestions.
Chenghao Yang
@Ahrovan I found a solution, but I'm not sure.
@Ahrovan PX4/sitl_gazebo#101
I would like to ask if there are equivalent flag from micropilot in Pixhawk. I mean if there is any analogue to
in fly/on ground
Thanks for any help!
hi anybody has the px4fmuv5 hardware schematic?
hello everyone, how to write a mixer file what is the vector and scale factors and offset is it geometrical?

When I compile the PX4 source code of 1.6.2 version, I meet this error. But when I compile the latest version(1.7.3), It can be compiled successfully. Anyone who can help me?

root@ubuntu:~/px4_code/px4_0/xyi_px4# make px4fmu-v2_default
-- CMAKE_MODULE_PATH: /home/yst/px4_code/px4_0/xyi_px4/cmake
-- Nuttx build for px4fmu-v2 on m4 hardware, using nsh with ROMFS on px4fmu_common
-- Build Type: MinSizeRel
Traceback (most recent call last):
File "Tools/tag_to_version.py", line 19, in <module>
minor = res[1]
IndexError: list index out of range
-- PX4 VERSION: 3284b7d
-- CONFIG: nuttx-px4fmu-v2-default
-- The ASM compiler identification is GNU
-- Found assembler: /home/yst/gcc-arm-none-eabi-7-2017-q4-major/bin/arm-none-eabi-gcc
-- Found PythonInterp: /usr/bin/python (found version "2.7.12")
-- Found PY_jinja2: /usr/local/lib/python2.7/dist-packages/jinja2
-- C compiler: arm-none-eabi-gcc (GNU Tools for Arm Embedded Processors 7-2017-q4-major) 7.2.1 20170904 (release) [ARM/embedded-7-branch revision 255204]
-- C++ compiler: arm-none-eabi-g++ (GNU Tools for Arm Embedded Processors 7-2017-q4-major) 7.2.1 20170904 (release) [ARM/embedded-7-branch revision 255204]
-- Adding ROMFS on px4fmu-v2
-- Nuttx build for px4fmu-v2 on m3 hardware, using nsh
-- Configuring done
-- Generating done
-- Build files have been written to: /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default
[73/566] Building NuttX for px4io-v2 with nsh
FAILED: cd /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4io-v2 && /bin/rm -rf /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4io-v2/NuttX/nuttx/nuttx-export && /usr/bin/make --quiet --no-print-directory -C /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4io-v2/NuttX/nuttx -r CONFIG_ARCH_BOARD=px4io-v2 export >nuttx_build.log && cmake -E touch /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4io-v2/nuttx_export.stamp
stdio/lib_sscanf.c: In function 'vsscanf':
stdio/lib_sscanf.c:419:28: error: this statement may fall through [-Werror=implicit-fallthrough=]
sign = true;
stdio/lib_sscanf.c:420:21: note: here
case 'u':
cc1: all warnings being treated as errors
make[2]: [bin/lib_sscanf.o] Error 1
make[1]: [libc/libc.a] Error 2
[73/566] Building NuttX for px4fmu-v2 with nsh
FAILED: cd /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4fmu-v2 && /bin/rm -rf /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx/nuttx-export && /usr/bin/make --quiet --no-print-directory -C /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4fmu-v2/NuttX/nuttx -r CONFIG_ARCH_BOARD=px4fmu-v2 export >nuttx_build.log && cmake -E touch /home/yst/px4_code/px4_0/xyi_px4/build_px4fmu-v2_default/px4fmu-v2/nuttx_export.stamp
stdio/lib_sscanf.c: In function 'vsscanf':
stdio/lib_sscanf.c:419:28: error: this statement may fall through [-Werror=implicit-fallthrough=]
sign = true;
stdio/lib_sscanf.c:420:21: note: here
case 'u':
cc1: all warnings being treated as errors
make[2]: [bin/lib_sscanf.o] Error 1
make[1]: [libc/libc.a] Error 2
ninja: build stopped: subcommand failed.
Makefile:164: recipe for target 'px4fmu-v2_default' failed
make: * [px4fmu-v2_default] Error 1


Any one there
@falcon15 are the people on PX4 moving to slack?
Rafael Rodrigues Teixeira
Throne Vault
Anyone using PX4 with Intel Aero RTF ?
@ThroneVault I am but did not play with it much :/