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Watchdog after a flight with temporary loss of control. No crash, soft landing
Hi All! I am experimenting with some aerodynamically unstable designs. The drone lost stability in flight and started tumbling (this was expected), got back under control, and landed softly. On the...
View ArticlePixhawk 2.4.8 - why rotors are not moving?
Hi I have a Pixhak 2.4.8 FC and I am trying to make my drone. I tested ESC and rotors separately with the transmitter and they are working but when I connected my FC rotors are not powered. I...
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Asking the community for help, especially experienced plane people
Hi all, I am asking the community for help, especially from people who actually fly and tune planes. I built a small live stand for seeing ArduPilot loops - which blocks the current mode closes, and...
View ArticleQuick question about whether if EK3_IMU_MASK variable?
Running Arduplane 4.7.1 and I am noticing when I look/download my parameter file that EK3_IMU_MASK goes from 1 (which is what I know I set it to) then it changes to 3 (which shows in my downloaded...
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CUAV Neo 3 IST8310 Compass Internal ERROR
@rmackay9 I am getting Following Compass internal error with following Arducopter Firmware versions. Hardware FC -CUAV x7+ GPS : CUAV NEO 3 IST8310 Compass. Scenario 1: AC 4.4.4 After bootup FC...
View ArticleHeewing T-1 S VTOL on 4.7.1 parameters
So I got me a T-1 S VTOL and the first thing I did was upgrade it to 4.7.1 which has more VTOL improvements… then I was like oh no, the parameters Andy made for 4.4 wouldn’t apply. Then I went to work...
View ArticleESC calibration on Nimbus 1800 VTOL receiver not binding with usb power
Hi everyone, I am setting up a Nimbus 1800 VTOL with ArduPilot v4.0.1 and I am having an issue with ESC calibration. My receiver works normally when the flight controller is powered from the flight...
View ArticleSafest autotune axis
Hi I was going to run autotune this weekend but since my quad is little low quality because of the ‘generic pixhawks’ it might crash in autotune. I have followed all steps from the wiki as it suggests...
View Article905 nm LRF modules over UART: the two protocol families, the 10% reflectivity...
Hi all — I work on the 905 nm rangefinder module line at ERDI (Chengdu). Posting it here because it is the kind of thing people keep asking us over email and there is no good public write-up of it....
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ArduPilot EU Dev Call 2026-09-16
Attendees (unique): 11 UTC0801 github.com/ArduPilot/ardupilot Save gobs of resources in parameter conversion code (#34397) master ← peterbarker:pr-claude-wt/dangling-pointer-warnings opened 07:42AM -...
View ArticleDifferent wire lengths on a Hexa X
Hello, I am building a Hexa X using a Cube Orange+ as the flight controller. Due to the geometry of the frame, the Cube Orange+ is mounted slightly forward of the frame’s center of symmetry. This...
View ArticleInflight optical flow calibration fail or pass
Unable to get a Scalar for Micoair MTF-02P during optical flow in-flight calibration. Why? Is it normal? Arducopter 4.6.3 FCU: MicoAir MicoAir743v2-AIO-45A 145679 15/9/2026 17:11 MSG 126447485...
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Prototype ArduPlane TAKEOFF analyser — looking for user feedback
I’ve been developing a TAKEOFF analysis tool in my ArduPilotTools fork and would appreciate feedback from Plane users on whether the report is useful and what is missing. It analyses firmware-owned...
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Crash with Tailsitter after transition handoff
Hi Team! I need help with a twin motor tailsitter I am designing and testing. It is a plank foam wing, with an SLS nylon printed fuselage. CG is at 18-20% back from LE for dynamic stability. wing...
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Betaflight Community's 'WOW' moment for Arducopter!
Betaflight community is coming to the terms that Arducopter can perform on the par!! Here’s a snapshot of Discord group chat (PIDToolBox by Brian White) - I couldn’t resist sharing it with this...
View ArticleToilet bowling when switch from optical flow to gps
I’d like to use a rangefinder & optical flow(MTF-01P) when within range of the optical flow for loiter mode & later switch to GPS being the source once the quad climbs beyond the range of the...
View Articlebicoptor tiltrotor plane
what frame class and tilt type does a two-motor tiltrotor actually use in current ArduPilot? 1 post - 1 participant Read full topic
View ArticleHere 3 plus external compass detection issue
I have connected here 3 plus with cube orange plus but the external compass UAVCAN is not detectable that appears in the compass section of mission planner. What can be the issue if the firmware is...
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An open source sonar survey pipeline autonomous boats, recording to chart
I’m working on software pipeline for turning sonar recordings from fishfinders into usable charts on an android device. I think it’s still pretty clunky. I’d appreciate any advice, if you want to be...
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Plane TAKEOFF mode can reuse prior level-off height on later takeoffs
I think I have found a state-reset issue in Plane TAKEOFF mode (Mode 13). Environment ArduPlane 4.7.0 stable (1511f271) Conventional fixed-wing TAKEOFF mode (ModeNum 13) TKOFF_PLIM_SEC = 2...
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