I am interested in GSOC 25 non-GPS pose estimation project but I have an inquiry, do I have to build both the hardware and software of just software?
1 post - 1 participant
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GSOC 25 non-GPS pose estimation project
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Rover with rover 4.5.7 only moves forward
Hi, I’m working on a rover with PX4 and four DC motors. I used motor drivers and connected them directly to PX4’s main output. I connected the left motor drivers to pin 5 of PX4 and the right motor drivers to pin 7 because pins 1 and 3 didn’t work. I’ve completed calibrations like the radio calibration, but my rover only moves forward. It doesn’t move backward or left or right. I’m trying to set up skid steering and using an Xbox controller, and I’ve confirmed that the controller works. Does anyone know the cause of this issue where the rover only moves forward? If so, please let me know the cause and solution.
1 post - 1 participant
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Choosing ESC for flightcontroller
Hi
I am in the process of building a quadplane in the 4+1 configuration.
The question I have is regarding ESC’s. My four brushless motors need 40A each which is why I am going for a 4-1 ESC like the SpeedyBee BLS 60A 4-in-1 ESC.
The problem is that my flightcontroller, which is the MATEK F405-VTOL, has its own on-board power distribution board which I dont think is safe to connect to the ESC since it would draw way too much current. Is it possible to connect the speedybee BLS to the flightcontroller itself and leaving the vbat and current sense pads unused by only connecting controlpins and ground to the flightcontroller? while I know its possible to use ESC telemetry on other ESC’s it is not possible on this one.
I know this might be a trivial quistion but I find it hard to find concrete answers scouring the internet.
cheers.
5 posts - 2 participants
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Tuning the S500 with a pixhawk 6c, Chnl 2200 mah 3s nearing the bottom, and ten inch props
I was trying to use auto tune to calibrate and tune my drone, however, the battery would just keep running out. I was wondering if someone has already got great tunes for their s500 that I could use to start manually tuning. I know ardupilot already gives tunes based off battery and stuff however I was just wishing someone who tuned their s500 dev kit could help me as it would be perfectly suited.
1 post - 1 participant
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Why does JSON replace the vehicle frame definition in SITL builds?
I am trying to build ArduCopter for SITL using the JSON interface so I can use my own physics simulation. I don’t want to have to include mission planner as the simulation is also set up to send simple commands like ARM and AUTO. But when I spin up the sitl build it starts with no frame or class defined, meaning I need to manually set the frame parameter and reboot.
Am I missing something here? I’m basically doing this:
cd ardupilot/ArduCopter
../Tools/autotest/sim_vehicle.py -f JSON:127.0.0.1
I would ideally have an -f quad argument in there as well but that causes the build to ignore the JSON interface
1 post - 1 participant
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Takeoff Mode Cuts Throttle
I am hand-launching a model using Takeoff-Mode and the throttle is cutting back to idle about a second after launch. I am not sure if I have a setting wrong or if I am following the wrong process. I am doing the following when I launch:
- Set model to FBWA mode with throttle at idle
- Arm model (using TX switch)
- Set to Takeoff mode (using TX button)
- Shake to wake and throw - throttle is still at idle
I have attached my settings. There is a log at 2025-03-01 09-23-48.bin. I am not seeing any Tx input during the launch that would cancel the takeoff sequence. I would appreciate any guidance.
ArduPlane.param (19.0 KB)
1 post - 1 participant
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Sik Radio/Telemetry Radio Connection
Before I was able to connect my sik radios together on my s500 kit however now the radios aren’t able to connect. With a little bit of troubleshooting I noticed that the one connected to the computer just flashes green and when I tried the one on the copter it also just flashed green when I connected to computer. When I connected either one of the sik radios into the pixhawk 6c it works and flashes the red I need. I am not sure what the problem is but it just seems like the radios can’t find each other
1 post - 1 participant
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What is ardupilot.ardupilot.org?
Just stumbled on this website, ardupilot.ardupilot.org. It’s got what looks like a clone of the normal site on it. Does anyone know about this or what purpose it serves?
1 post - 1 participant
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Telemetry connection with CubeOrange plus
I am not able to establish telemetry connection with my Pixhawk cube orange plus, I am using 2 RF telemetry connections
Although I am able to connect if both telemetry and Pixhawk is connected to the same PC, using mission planner I am able to connect
but there is problem of latency, if there is change in orientation of Pixhawk it takes a long time for that to show in mission planner
I am not able to connect when powering Pixhawk through battery and telemetry using mission planner.
Please advice how to solve this issue
Additionally I want to obtain the data from trigger from telemetry and I want to just obtain the gyro and the IMU data only.
Also please advice how I can view my log and get data from it
1 post - 1 participant
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Custom Motor mix
Hi everyone. I am following this video on 6DoF, however at approximately 17 minutes in it appears that he’s editing the motors program.
That specifically is what i was after to finish my project, however I am completely clueless on how to actually access that and achieve it. Is there a specific version of ground station i need to run?
I have already installed the firmware for my board from the beta section 4.6, Matek H7A3. Any dvice on how to edit that would be great!
1 post - 1 participant
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Just bought a Holybro Pixhawk 4 but has no Holybro logo
Just got the Holybro Pixhawk 4 from robu.in which is very trustworthy website here in India. It cost as much as a Holybro should. But the Pixhawk 4 I got has no Holybro logo. But has excellent build quality seen from outside. Is this a clone possibily? Are there Pixhawk 4 clones?
Product link: https://robu.in/product/holybro-pixhawk-4aluminum-casepm07-14s-m10-gps-set/
The product link has the logo.
Is there a way to determine its genuineness without opening up the case?
1 post - 1 participant
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The signal is received on ch6, but ch1-4 are held and cannot be controlled
Hello Ardupilot experts.
I have a question regarding the crash of my first FPV plane equipped with Ardupilot, weighing less than 100g.
1.Issues encountered
Channel 1-4 was held and the plane was out of control at flymin 0:33, then the throttle suddenly went to zero, the plane stalled and could not recover, and it crashed.
I wanted to avoid crashing onto the highway, but it would have been dangerous to lose control. Fortunately, the plane veered left, which resulted in the plane crashing into the riverbank.
The FPV-DVR video is below.
- What I want to know to prevent recurrence
Q1.Why does ch6 move even though it doesn’t respond well, and ch1-4 hold and become uncontrollable?
Q2.Is there a problem with the receiver? Or is it a problem with the settings of the FC with Ardupilot?
Q3.What measures can be taken to address this issue?
3.Components that make up the RC system
ArduPlane V4.6.0-dev (075a5c3c)
Transmitter:Futaba T16IZ_Super
Receiver:Futaba R2000SBM
FC:MicoAir405Mini
4.The log confirmation screen for Mission Planner is shown below.
5.The bin file for Ardupilot DataFlash Log is below.
If any Ardupilot experts could take a look at this file, they might be able to find more detailed information about the problem.
https://1drv.ms/u/c/51eb86ee9f4a01c4/Ee00WkU5WHtDsSkaM7oChI8BBlv893LGZYJA29ijsSg3Cg?e=ebgXzF
6.The causes and solutions I came up with are below.
Please let me know if there are any errors.
*On the day, in addition to multiple radio-controlled aircraft, there were two DJI drones flying that were transmitting images at the same 2.4G, so the 2.4G band was busy.
*The percentage of packets that could transmit information correctly was low.
*Is the SBUS to RCin conversion logic slightly different for ch1-4 and ch5-8?
*Next time the same situation occurs, I will manually set it to RTL, wait for it to get close to the runway, and then use DisAim to bring it down.
I would appreciate your assistance in identifying the cause and preventing recurrence.
3 posts - 3 participants
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HD Video Quality, gymbals, and tuning
I am trying to solve the shakiness/vibrations of the HD Video. Right now I have an old Runcam mounted on a simple sponge, and I have several types of vibrations which are apparent in the video. Since I do not have much experience with copters and video stabilization I wanted to ask here what is the best way of solving it.
I have uploaded a complete video, but for instance 8:10…9:00 has all the different problems with video:
I also have these very low amplitude vibrations seen in log:
Some of the shakiness defintively comes from turbulance, I had about 25 km wind with gusts of up to 40 and since I was on the the lee side, there were also constant downdrafts, and updrafts, but I am really interested in eliminating high frequency oscillations only.
The question is this:
- I do not want to use gymbal due to weight, but… would a gymbal solve issues seen in the video? Would gymbal be sufficently fast to react to high frequency oscillations of the copter?
- I have now a simple sponge, but would a different type of vibration mount eliminate the shakiness? I feel that it needs a much softer dampening, like cutting off 80 % of the sponge material, but I maybe wrong.
- I have these high frequency, low amplitude (0.2 degree) oscillations which I can not really tune out (to get rid of them, I need to lower PIDs way below the safe values which are not compatible with flights in mountain terrain), but are they the real culprit for the video quality?
4 posts - 2 participants
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Fine tuning large QUAD
Hi,
I’m trying to build a payload delivery quad and I followed the basic configurator so far. However I’m unsure about what I’m doing with the MOT_THST_HOVER because in one part of the configurator it requests to use the initial flight settings where I set it at 0.25 whereas my initial tune parameter suggested a value around 0.64. I have tried flying with the 0.25 value while following the other steps. I’m not seeing any visible oscillations but my CCW motors are warm to the touch and the drone does not hold the position very well, it flies in quite a bit radius whereas I need it to hold quite steady. I have completed upto the first few flights of the mandatory minimum tuning but have not run through the VTOL PID tune script yet. Till now I have followed every single step to come this far (I Hope I have not missed anything). The roll and pitch inputs seem a bit aggressive and yaw seems very unresponsive at times. I’m attaching my log files from the last few flights for reference (there are some videos in the link too):
Also on the last flight the drone exceeded the fence and completed a nice RTL. The landing is the best part so far, very smooth and reliable. In AltHld the drone drifts away quite a lot.
https://drive.google.com/drive/folders/1hzC9iTVWf-PxCHNN96jQolaa3snkBqbu?usp=sharing
I would like to thank all the ardupilot devs in advance so far for always being fast with their responses and giving the best suggestions!
Build:
Hobbywing X6SE Propulsion System
22*70 Hobbywing Props
SIYI MK15 RC
960mm wheelbase frame
Cube Orange FC + Default Power Module
28AH LiPo Battery
Here3 GPS
(Unfortunately I don’t have any access to thrust stands. )
14 posts - 3 participants
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Getting GPS coordinates via IBUS telemetry to show on Edgetx
I’ve gotten IBUS telemetry working a on a few of my FCs via a request from the custom build server. What I’m not getting is the GPS coordinates. I get total sats, but that is the only GPS data I have a sensor for in EdgeTx. Does anyone know how to configure a sensor or sensors to get the GPS coordinates into EdgeTX?
1 post - 1 participant
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GPSInput Causing Mag Field Errors
Hi there.
I’m currently using SITL to model an ArduCopter running with Gazebo, through MavProxy as the GCS.
I’m using MavProxy’s GPSInput module with a very basic python script to spoof gps. While the simulated UAV successfully gets a GPS lock from the spoofed GPS signals, doing so seems to cause PreArm failures from ArduPilot and I’m unable to arm the throttle and takeoff.
This is all I have changed in the params file:
GPS1_TYPE 14
GPS2_TYPE 0
I’ve already tried changing other params, like the various EK3_MAG_.... options I could find and the ARMING_DISABLE etc. options.
Does anyone know why this might be?
1 post - 1 participant
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RC Radio RSSI and LQ data - only in tlog?
I’ve flown a test mission on a new copter and I wanted to check the RSSI and LQ values. The copter uses ELRS for the RC radio and I’m not using a telemetry radio.
Looking at the WIKI, it appears that this data is only captured in a tlog. I’m not flying with a ground control station, so I don’t have the tlog.
I don’t get into this particular area very often - so I may be way off base.
Here’s my BIN file. Is there a way to see the quality of the RC radio link? Tribble Mill Park - test mission - 2025-03-02 11-22-40.bin - Google Drive
Thanks!
2 posts - 2 participants
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QWIKTUNE and Q_A_ACCEL_X_MAX
Does qwiktune set the following parameters?
- Q_A_ACCEL_P_MAX: Pitch rate acceleration
- Q_A_ACCEL_R_MAX: Roll rate acceleration
- Q_A_ACCEL_Y_MAX: Yaw rate acceleration
The quik tune wiki says no, but it refers to the lua applet.
I use the quik tune embedded in arduplane 4.6 code.
I checked them and are not to the defaul value. They have been set to 4 times the default values.
4 posts - 2 participants
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Unable to connect to external DPS310 Barometer
As I’ve been testing my copter, in one of its most recent autopilot missions, using the onboard/built-in barometer (SpeedyBee F405 V4 SPL06 barometer), the drone began to suddenly ascend from about 30 feet in the air to above 100 feet in the air. This was not a one time issue and I have had multiple instances in which the onboard/built-in barometer does not reliably help maintain the drone’s altitude and sudden barometer spikes and dips occur. In fact, when sitting at my desk today doing some testing with the drone stationary, the altitude reading ranged from -20 ft to 55 ft! I’m not sure if it’s defective or not but I’d rather not use it.
This prompted me to try to use an external barometer, one integrated into the GEP-M10-DQ GPS module. I have seen a couple discussion on this forum talking about the compatibility of the DPS310 barometer with ArduPilot (ArduPilot only mentions probing of the DPS280 as an external barometer) but users/developers have stated that the DPS310 should still be supported. With this assumption, I have tried to have my FC properly show the DPS310 as one of the barometers detected but to no avail.
I am certain that my I2C connection is not an issue because the only compass in my copter, the one located in the external GPS, is also connected through I2C and functions properly. I’ve cleaned the area between the SDA and SCL connections and can confirm that there is no continuity between the two wires either.
Originally, I tried changing params such as BARO_EXT_BUS, BARO_PROB_EXT, and BARO_PRIMARY. With a lot of trial and error, I found that enabling probing for an MSP barometer seemed to have added a new barometer to the list of my sensors (I am using QGC):
I am unsure of what the “? (MSP0)” means as my barometer is connected through I2C and it is the DPS310 barometer. But, whenever I have this configuration, using either the onboard barometer or the “? (MSP0)” barometer results in a warning of “Baro: not healthy”. The “? (MSP0)” barometer shown also doesn’t seem to be linked to my GPS barometer because when I disconnect the GPS completely from the FC, it still shows up.
A staff member of GEPRC, the company that created this GPS module posted this issue on the iNav github repo: The barometer integrated on GEPRC's GPS is not working - the solution · Issue #10442 · iNavFlight/inav · GitHub. In short, there seems to be an I2C address conflict between the inbuilt barometer and the external barometer. The way to fix this is by removing a 10k resistor on the GPS which changes the I2C address of the barometer. I have done this and now, BARO_EXT_BUS shows a new option in the dropdown: Bus6 (my GPS is connected to UART6 which is probably why it is 6). Yet, the DPS310 does not show up in the list of sensors and the same “? (MSP0)” barometer is shown.
At this point, I am unsure how to proceed. I have seen some methods that mention manually modifying the firmware for changing the I2C bus used and others that remove the onboard barometer so there is no I2C address conflict. I’m wondering if there is a way to disable the onboard barometer? Any help would be greatly appreciated!
9 posts - 2 participants
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How to Export Data as CSV from a .bin File Using MAVExplorer?
Hi everyone, I’m using MAVExplorer to plot data from a .bin file. I wonder how to export the data as a .csv file from a .bin file using MAVExplorer.
1 post - 1 participant
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