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Pixhawk Cube not responding after firmware upgrade

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@aero4 wrote:

Hi all,

I have a problem concerning the Pixhawk Cube.
I set up Ubuntu on Virtual Box, downloaded the latest source code and compilated/uploaded it by means of waf.
This worked fine but after that the Pixhawk is not responding.
Normally when plugging in USB the Pixhawk connects, disconnects after some time and connects again and then it was available to connect e.g. to Mission Planner.
But now after the first disconnect it does not connect again.

So i think the new compiled and uploaded firmware is corrupted.

I saw that the OS changed from NuttX to ChibiOS, could that cause a problem?
Also waf is used instead of make to compile…
Previously I uploaded my Firmware with make on windows and NuttX which worked fine, but does not seem to be supported any more…

What can cause this problem and how can I solve it?

Thank you for answers in advance!

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Internal vs external compass conflict

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@Chad_Frazer wrote:

Very odd.

So I’m fighting my way through initial integration of the pixhawk 2.1 and after a compass calibration I realized that no matter what the compass “page” says in mission planner only the internal compass is used! I can confirm this by putting my hand on the autopilot and wiggling it and I see the compass wiggle accordingly. If I put my hand on the HERE GPS/Compass I get no such wiggle, even if I disable/enable through every possible configuration.

I’m not crazy right? The Here GPS does have a compass: HMC5983 MAG, and LIS3MDL Mag

So my question is, How do I get it to take a mag reading from the external Here GPS unit and not only from the internal pixhawk 2.1 compass?

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I need your help about precision landing IRLOCK

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@wondo wrote:

I am trying precision landing using IRLOCK.
I set up PLND parameters like as follows

IRLOCK firmware is MarkOne_1.0.1.hex and I checked the sensor was tracking beacon well using PixyMon version 1.0.2.

I tryed precision landing flight test several times. but, It didn’t work.
when I saw the log, PL Heal = 1, and other things are zero(Tacq, pX,pY etc.)

and rangefinder must be needed when precision landing?

somebody, could you tell me what’s wrong with this situation?

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Lightware SF 20 updater

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@MartyMcFly wrote:

Hi would any one have the latest updater for the light ware SF 20 that they would be willing to share,many thank’s in advance

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Log Help: Work Solo fell out of the sky

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@Saijin_Naib wrote:

I’ve posted this on 3DRPilots as well as the FB group, but I wanted to get some more eyes on here if at all possible so I know what to expect for the upcoming season, and to possibly address any problems I may have with my maintenance schedule.

To me, it was seemingly running just fine. Motors sounded smooth, they cogged cleanly when moved manually. I check the auto-analysis in Mission Planner after most jobs, and didn’t get any warnings I wasn’t expecting (slow loop, etc). The props are fresh Master Airscrew props which have seen 0 abuse (I store/transport them in the microfiber drawstring bag). The battery pack lights even report roughly the same percentage as the last I saw on my remote, so it doesn’t seem the battery crapped out. From watching the log playback, I almost want to say I had an ESC brownout and it couldn’t recover, or possibly I had a bird-strike. I don’t think any prop threw a blade since I recovered all the pieces of the props at the crash site, and I would expect that if a blade got thrown, I wouldn’t find it laying at the site of impact.
Thoughts?
Thanks!

Attached in the below OneDrive link are 4 logs:
01_DATAFLASH_2ND_LAST_KNOWN_GOOD.7z
This log is the oldest field flown the day before the crash.
02_DATAFLASH_1ST_LAST_KNOWN_GOOD.7z
This log is the last field flown the day before the crash.
03_DATAFLASH_CRASHED.7z
This log is the dataflash from the crash.
04_TELEMETRY_CRASHED.7z
This log is the tlog from the crash.

https://1drv.ms/f/s!AvMZEGXuAwQzqNMn5KL8pm7ADImyEw

Thanks for any and all help!

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Best Contribution of the month, October 2018

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@OlivierB wrote:

DroneKit

Congratulations to Pietro De Nicolao (aka pietrodn on Github), for winning Ardupilot’s “Best Contribution of the Month” award for October 2018!

Pietro was nominated and won the prize for his significant contributions to DroneKit, that include his merged pull requests here. Pietro has also contributed to Ardupilot’s Pymavlink, with these contributions.

Dronekit is a project that was originally started at 3DRobotics, and is now mostly maintained by Ardupilot’s dev team member @peterbarker, with documentation that can be found on this page. The Dronekit project is currently independently hosted by DroneCode, but may soon be officially managed by Ardupilot following an early blessing from a senior DroneCode member. If you are not familiar with the framework (used both in experimental and professional environments) and are interested be sure to check Tiziano’s great introductions!

The prize for the month was $200 for the top contributor. (Sorry we are a bit late on this one, Pietro). Thanks to those who donated to ArduPilot, including our Corporate Partners . If you are a company and wish to donate a prize for an upcoming month, please email the partners email list (partners@ardupilot.org).

Congrats again Pietro!

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Geometry of odd shaped vehicle

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@flying_for_fun wrote:

Does Arducopter (or plane, vtol etc) have a way or place to enter in the geometry of my setup? I have a prototype vehicle I’ve designed that is a wide (from two motors are further out than the rear, like a dead car but much bigger) setup by also has several degrees of angle in the front motors as well as being about 20-25mm higher than the rear motors. It’s a quad but is there a mixer or python script etc? How do I take this into account?

Thanks!

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MPlanner Flight Director display not using External Compass

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@capt.G wrote:

Hi, I just bought a Pixhawk 2.4.8 and accessories on AliExpress, items seem to be working. But Mission Planner still uses the internal compass on the PX board even though I checked all the boxes and params in choosing external compass as the main compass.

When I try to calibrate it, the GPS compass is functional, as well as the internal compass. However when I go back to “Flight Data” section of Mission Planner, it still uses the internal compass as the main compass.

I am not sure how to fix this, please guide me through

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The tilt servos & aileronsTREMBLE when power

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@Aticof wrote:

Why do the tilt servos and ailerons tremble in QSTABILICE mode when power? If I change to a plane mode and return to Qstabilice the tremor disappears.

If I power on plane mode (FBWA by example) and I change to QESTABILICE the tremor does NOT appear.

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Funding/Donations to solving specific issues

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@Corrado_Steri wrote:

I still think a board where people could ask for implementation and open a subscription for funds would be a great opportunity.

If someone wants to do it and needs some help i am here, please contact me.

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Holybro Mini Pixhawk4 Flash Ardupilot 3.6.2 Very GOOD

Compass calibration never succeeds

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@stavros wrote:

I’ve been trying to calibrate my external BN-880 compass for my third flight (having rebuilt the craft after a crash) and I keep getting failures. Arming won’t work due to bad gyro health, and trying the onboard calibration always reports that the threshold is under the confidence threshold.

I also tried live calibration and the points do show up, but the offsets are three-digit long at best, and the controller still keeps reporting bad gyro health with those.

I tried calibrating in an open field at least 30m away from anything metal or power wires but it kept failing. I’m at my wits’ end, how can I debug this?

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No parameters SRx for telemetry port 4 and 5

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@norim wrote:

Hi
I am trying to connect alexmoss gimbal to pixhawk 2.1 (cube). On telemetry 1 I have graupner telemetry, on telemetry 2 port I have 433mhz telemetry and sr3 is GPS. In parameters I can see and set serial_protocol for all connectors but I can’t set srx_xxxxxxx parametres for connector 4 and 5. I don’t see any setting with sr for 4 and 5 connector :frowning: I have all settings only for sr1 to sr3 connectors. How can I turn them on ??? Telemetry port 4 is working I check this with graupner telemetry and it sends info to alexmoss but I can’t set

  • SR4_EXTRA1 = 20
  • SR4_POSITION = 5
  • SR4_RC_CHAN = 20
    because they don’t exist in parameters :frowning:

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Problem with magnetic sensors

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@toti wrote:

I have been fighting issue with my new quad setup.

From the begining I have been fighting irrational actions. First I was using fmu v2.6 and next I grabbed PX4.

From the status display in mission planner I noticed external magnetic sensor showing alternating readings going up and down in no relation to internal sensor. This is related to all three axis.

I changed sensor but the same behaviour.

Any idea

Thordur Ivarsson

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New Guy: Channel Trim

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@Jeremiah_Burt wrote:

Hi everyone! Running Pixhawk on a new setup for my first Arduo build. (Did DJI last time).

I am having trouble with one motor spinning slower than the others. I know this is probably something to adjust on the channel with my throttle, but am unsure what to do. I think the esc and motor work just fine…it seems to be a mid/max setting I cannot seem to figure out.

Any ideas what could be causing this?

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Quad not responding / flying properly

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@Rudransh_Singh_Mahra wrote:

I recently build a f450 Quadcopter. I am using APM 2.8 and it is flashed with version 3.2.1. I am using flysky fs-i6 transmitter and iA6b receiver. It is mode 2 transmitter. The problem I am facing is that when I push the right stick of the transmitter backwards the drone move forwards and when I push the right stick of my transmitter forwards the drone move backwards. I can’t fly my drone because of this. I have properly callibrated my esc , accelerometer , transmitter , compass. Plz help me as soon as possible. I am really in need of help. Plz reply fast. Thanks in advance.

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Quadcopter not flying properly

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@Rudransh_Singh_Mahra wrote:

I recently build a f450 Quadcopter. I am using APM 2.8 and it is flashed with version 3.2.1. I am using flysky fs-i6 transmitter and iA6b receiver. It is mode 2 transmitter. The problem I am facing is that when I push the right stick of the transmitter backwards the drone move forwards and when I push the right stick of my transmitter forwards the drone move backwards. I can’t fly my drone because of this. I have properly callibrated my esc , accelerometer , transmitter , compass. Plz help me as soon as possible. I am really in need of help. Plz reply fast. Thanks in advance…

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Waypoint Question

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@ecabanas wrote:

My Rover when reaching a waypoint makes an arch, this arch has been reduced reducing WP_RADIUS to 0,1.

But what I could I do if when the rover reaches the waypoint stops a second and continue?

Is it possible to reduce the minimum speed to less than 1m/second?

thank’s

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Why I think We Need A Commercial Drone Coop

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@cglusky wrote:

TL:DR: If you want to use an Ardupilot based drone for commercial operations than have a read; if not, then have a great New Year!

For those who do not know me, I float around here under coby and cglusky. I started and operated Rocketship Systems, which also ran FlyingFoam and BoxBotix. I am also the guy designing the Dev Frame, and I hang out over at GoodRobots. We recently sold most of Rocketship Systems, and will close the rest tomorrow. I am starting a new service endeavor that will use drones as part of it’s offerings. I have spent the last few months iterating through business idea/plans and one that keeps coming back to mind is the idea of a commercial drone coop. It is not something I am going to pursue personally, but I think has merit for the community to review.

A Coop is an organization owned and controlled by it’s members. REI is one popular example. Credit Unions and Ag based Coops are also popular here in the rural US. I have read about grocery Coops in the UK and EU. Feel free to search. One of the better resources for starting and running one is the USDA Rural Development Program in the US: https://www.rd.usda.gov/programs-services/all-programs/cooperative-programs.

Why do I think we need a Coop when we already have ArduPilot? Well, after a lot of research (and an unreasonable bias against DJI) I ended up buying an Autel Evo to start my new service business. If you have not caught on yet, I used to build small quadcopters for people to use. So, why am I not eating my own dog food? I may eventually, but for simple, creative missions to capture aerial video and images I can not buy the equipment for the money I spent on the Evo. Then I still have to build it all out and I hope I get a tightly integrated and easy to use package. So, from a business perspective it does not make sense. And Frankly, I do not think it’s ArduPilot’s job to provide integrated systems. But a Coop could.

As a Coop we could identify the most important use cases and work backwards to fund the development of the requirements most important to building said integrated systems. Honestly, most of these systems likely already exist, but are being sold by companies that do not enjoy the transparency and democratic control of a Coop. Some are even using ArduPilot. I have no problem with that model. I just think a Coop would better serve small independent operators who prefer to leverage Open Source, but desire a bit more structure and support to build out the ecosystem.

I think it should be separate from ArduPilot, but become a partner to help fund related software dev. I also think it should charge a fee for membership to help fund development as decided by members. And I think it should provide Integrated Systems (hardware and software that provide a capability), Support (Maintenance, Audits etc) and Training (Part 107 etc) from Business Admin (boilerplate biz plans etc) to Flight Operations (Operations and Maintenance manual and checklists). So you end up with revenue from dues as well as sales of systems and support. I don’t think a Coop would be all rainbows and Unicorns. As a democratic organization it would be messy, and a lot of work. But I think it’s a good match for people attracted to the same spirit of Open Source development.

And before this turns into a manifesto let’s get to some concrete steps:

  • Form a small group of stake holders to figure out if it’s desired
  • Identify initial use case
  • Work backwards to identify requirements
  • Figure out how much money it would take
  • Produce a simple plan and roadmap
  • Come back to the community with the initial proposal and repeat as required

If people are interested I am game to help out but I am NOT an expert at forming a Coop. The first question that comes to my mind: Can you do this internationally, or do you need to start small in a single country and then create chapters in others as required? As I said, it would be a bunch of work. But I do think it would be worth it for those of who would like to continue to democratize drone tech while pursuing sustainable commercial use. I am posting this to see if there are others who feel the same. If not, we all move on.

Happy New Year!
Coby

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Autotune does not work

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@F100 wrote:

can any one help me with this log I couldn’t get auto tune to work before one of the props broke inflight and caused a crash

Log File C:\Users\natch\AppData\Local\Temp\tmp2301.tmp.log
Size (kb) 849.080078125
No of lines 12217
Duration 2 days, 6:24:57
Vehicletype ArduCopter
Firmware Version V3.2.1
Firmware Hash 36b405fb
Hardware Type
Free Mem 0
Skipped Lines 0
Test: Autotune = UNKNOWN - No ATUN log data
Test: Brownout = FAIL - Truncated Log? Ends while armed at altitude 4.58m
Test: Compass = GOOD - No MAG data, unable to test mag_field interference

Test: Dupe Log Data = GOOD -
Test: Empty = GOOD -
Test: Event/Failsafe = GOOD -
Test: GPS = GOOD -
Test: IMU Mismatch = NA -
Test: Motor Balance = GOOD - Motor channel averages = [1425, 1447, 1442, 1432]
Average motor output = 1436
Difference between min and max motor averages = 22
Test: NaNs = GOOD -
Test: OpticalFlow = FAIL - ‘FLOW_FXSCALER’ not found
Test: Parameters = GOOD -
Test: PM = GOOD -
Test: Pitch/Roll = FAIL - Roll (-175.79, line 12118) > maximum lean angle (45.00)
Test: Thrust = GOOD -
Test: VCC = GOOD -

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