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    LorenzMeier on revert-99-master

    (compare)

Shelhuei
@XiaoHuiGitHub
jixing.png
Alexis Potvin
@AlexisPotvin
@XiaoHuiGitHub you can take a look at the mixer : https://dev.px4.io/en/concept/mixing.html
13928472050
@13928472050
Hey Guys, is the FMUv5 hardware specs been released?
Frosty427
@Frosty427
does anyone know when gpu prices will drop?
Gus Grubba
@dogmaphobic
When the idiots trying to mine bitcoins realize they are idiots… :P
Frosty427
@Frosty427
how?
doesnt it make people alot of money?
@dogmaphobic
Gus Grubba
@dogmaphobic
It’s gambling for people who don’t know math. The ROI doesn’t make sense.
Frosty427
@Frosty427
do you think by april prices will go down?
Gus Grubba
@dogmaphobic
I can’t seem to find my crystal ball :P Who knows? Sooner or later people will realize they are spending way more money than making and give up. I figure Nvidia must be pretty happy about it but it can’t last. I expect a flood of cheap GPUs on eBay soon.
Frosty427
@Frosty427
btw is there a way to use both a gpu and an apu running at the same time? @dogmaphobic
Frosty427
@Frosty427
image.png
image.png
Shelhuei
@XiaoHuiGitHub
@AlexisPotvin Thank you very much, I have solved that problem according to your advance.
GAANDALF
@GAANDALF
Px4 mixing architecture is a bit sketchy. Make sure you test that bad boi on the ground first
@dogmaphobic ROI's are positive in that space for moderately and even smaller sized farms. People aren't THAT stupid.
Garrett
@RemsX
Hello, is Y4 a supported airframe? It looks like some people got it working, but I didn't know if it was officially included...
xiaofyao
@xiaofyao

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
root@ubuntu:~/px4_code/px4_0/xyi_px4#

_

Pietro De Nicolao
@pietrodn
Hi, how do I disable all the LEDs on a Pixhawk Mini running PX4?
Daveuav
@Daveuav
Good day
on qgroundcontrol ive found issues for the compass calibration, my flight controller is a pixracer r15
hi Pietro, I'm pretty sure you can disable only the main led...
Daveuav
@Daveuav
compass issue with pixracer r15.. pls few adviced
Phillip Kocmoud
@pkocmoud
@Daveuav What issue are you seeing?
Daveuav
@Daveuav
hi Philip... ive the warning Mag1 selftest failed...
I've done also the listener for mags...
so I've disable mag 1 but i still left active mag 0 that is external
Ivan Riol
@imrj
try loading the firmware manually with an STLink or USbSerial...
Mathew Wright
@mwrightE38
Is there any unit testing firmware etc for boards? I have a bunch of pixhawk 1's (3dr and mro) that have been crashed and I'm looking for a quickish way to test them all.
ecks123
@ecks123
Hi Guys, New to this site. Im building a PX4 drone all up weight is 4kg with 15x5.5 props. I have chosen the Generic Quadcopter X model and the drone flies however its quite unstable on basic settings. Ive increased MPC_THR_HOVER to a level where the drone is quite good at maintaning altitude on stabilised mode. Its very rocky with default PIDS but increasing them makes it better.
I do have 2 problems though. On take off in ATTITUDE or Position it rises to a height of around 1.5 Meters and climbs or descends a lot on its own. Once I take it up to about 7 meters this stops and it feels like its locking on to ATTITUDE. what could cause this.
The other problem is Landing. In stabilised mode it lands fine But ATTI and POSITION it wont land it wants to rise and will not decrease motor speed. We are hoping to get it to land well as this is a machine that will be used for others to fly hopefully just in position mode. Ive tried Lowering MINPWM to 990 this is the lowest the motors do not stop while armed and tilting. Any hekp on these 2 problems would be amazing.
gcarmix
@gcarmix
Hi, I can't find the schematics nor the layout of the FMUv5 on the github, is it no more Open Hardware?
Mark Whitehorn
@kd0aij
So far nobody is giving their schematics for the fmuv5 away. Probably has something to do with return on investment and product quality.
Hamish Willee
@hamishwillee
As Mark says, no schematics (Open Hardware Design) or PCB layout files (Open Hardware Reference Design) for FMUv5. There is a pinout definition and enough information to create compatible hardware - albeit it is much harder. This is technically all that is needed for an "Open Hardware Design".
Adam Keim
@tobycyanide
In terms of schematics for the FMUv5, you can find the PixHack v5 schematics on their github, it's not THE implementation as there was with the older FMU versions, but it's an implementation
Mark Whitehorn
@kd0aij
Thanks for the info; I didn't know that CUAV had published their schematics and pcb layout.
Dionis
@Dionis_Baralis_gitlab
Such a situation: I am feeding on pixhavk. Two squeaks are heard and the red LED is on. In the file on the SD card writes: failed to start mtd driver. In the console, when the mtd command starts, it writes: failed to initialize mtd driver. How to solve this problem? Thank you in advance.
Neo
@neom89
I have made a pixhawk fmuv3 setup on a breakout board with all the peripherals. I am able to upload latest firmware on to the setup. When I try to select the airframe, upon restart the airframe is not saved.
To make sure, I tested the status of the mtd through NSH. I get an error that mtd driver is not started. I tried starting it using ‘mtd start’ command but it could not be started.
Can someone please tell me what could be the problem?
McKay Whight
@HecticSalad
Anybody know how to access the Boot0 pin on the Pixhawk 4? Literally cannot find this information anywhere.
石朝阳
@zhaoyang6
Hello, everyone, I wang to learn PX4 Hardware design, where I can find the chematic diagram of the device
Hitesh Sagar
@Hitesh-Sagar
@zhaoyang6 i need to do the same
How can I design a new hardware, which is compatible with px4
Nour Helal
@pirate-lofy

Hi, I’m trying to make a drone fly in mission mode with pixhawk controller, jetson tx2 module + j120 carrier board and realsense camera… but I am a complete beginner so forgive my shortage of information and poor English.

The real problem is that I want it to do big missions in which I am not involved. My desire is to send the drone the waypoint that I want it to go to before it takes off then it goes to that waypoint doing obstacle avoidance using px4/avoidance.

My current situation is as following…

I connected the pixhawk controllet to a pc and updated the firmware and callibarated default sensors (compass and etc.)
I inatalled px4/avoidance on a jetson tx2 with j120
My question are

Can this project be done or not?
If it can, what to do next?
Is it possible to save the missions on the jetson and make the drone follow this mission without being connect to it via wifi?
When I connected the pixhawk to the jetson via usb it read it and I managed to test it via mavros, but when I unplugged the usb and connected using telem1 connection it couldn’t read it. Is that ordinary or there is something wrong?
Please, if you can provide me with any advice I will really appreaciate it.

Sonu Gadewar
@SonuGadewar
Hello everyone, I need a EO/IR camera for UAV. My required Specifications are :
Tentative specs: EO/IR
Atleast 2-axis stabilized
Min EO Resolution: 1920 x 1080 (preferably 3840 x 2160)
Min IR Resolution: 640 x 480 (preferably 1024 x 768)
Optical Zoom: atleast 10x (preferably 20x or more)
Required Detection, Recognition Identification (DRI) index for a Human being
Detection: ~1.5+ km
Recognition: ~1+ km
Identification: ~500+ m
Camera Interface: Preferably ethernet for both feed and gimbal control (IP based)
Power consumption: Less than 50W
Total system weight with associated peripherals: preferably less than 1kg
PLEASE SUGGEST ANY PRODUCT.
Matthias Urlichs
@smurfix
Hi, I have an old ArduCopter lying around which I want to rejuvenate. It came with an ArduBrain 1.3, which contains a Pixhawk Fire. Does anybody know where the schematics for this device can be found so that I have a reasonable chance to teach an uptodate Linux kernel to talk to them?
Matthias Urlichs
@smurfix
Erle*, not Ardu. Sigh. I'll be misplacing my whole brain next.
mihirus
@mihirus
Anybody know how much current you can pull from the signal pin of the pixracer ESC/servo rail? Looking to actuate a solid state relay that requires 10mA continuous to switch