PX4 Sync / Q&A - 2025-06-04T15:00:00Z
List of all Dronecode events
Agenda
Announcements
Future Events
Flight Testing Update
Release Discussion
Bug Report / Q&A
Announcements
PX4 Release Testing
PX4 v1.16.0-rc1 is out, and we need your help with testing!
QGC v5.0.0-rc2 Alert
The QGC team expects a stable release next week! Please test and report issues now.
Next Dronecode Meetup
Nothing scheduled yet. If anyone is interested to host a Meetup please reach us out. Always happy to have it organized.
Future Events
Flight Testing Update
About the Test Team
The team at Ascend Engineering (Chicago). are running flight testing for the community.
How to reach out to the team
GitHub: Tag user @PX4 /testflights
Discord: #flight-testing
Weekly on the PX4 Dev Call
How to Request Testing (GitHub)
Write down the steps to test your issue/pull request
Make sure to note the risk involved in flying
Write down things to look out for / anticipate - eg: “we are looking for no yaw jumps”
Add issue/pull request to the Flight Testing project board
Make sure to specify any hardware/software requirements as much as possible
Resources:
Comments / Discussion:
The flight testing team is building the VTOL
Release Discussion / Updates
v1.16 Release Discussion
Release Candidate v1.16.0-rc1
The first release candidate for the upcoming release is finally available through github and QGC.
@rroche has prepared the draft of release notes which will be completed as the next RC is cut:
We need help with flight testing, especially for early adopters and users with free time who can provide logs from flights with their drones.
Release Testing
Testing Tracker
opened 04:08PM - 08 Jan 25 UTC
bug-report
## :exclamation: About
💡 For the upcoming v1.16 release, we are asking the Commu… nity for flight tests. This issue will be used for keeping track of all the tests from the Community.
If you're unsure about upgrading, please read the preliminary release notes on the PX4 docs. Pay close attention to the Upgrade Guide before deciding if v1.16 is right for you.
- [v1.16 Release Notes](https://docs.px4.io/main/en/releases/1.16.html)
## ❓ Why we need flight testing
🌏 Thousands of people around the world depend on the stable release of PX4.
🖐️ Before every major release, as much testing as possible is needed to ensure that our release actually works!
😯 Simply said, **more testing = better release**
🤗 We would like to encourage every community member to join us in improving PX4!
## 🤷 How you can help with flight testing
😱 Even if you have never contributed a flight testing report, fear not! Please follow the steps below for the details of how you can contribute to flight testing.
1. **Select** a category from the "flight testing matrix" below
1. **Flash** the firmware (documented below)
1. **Test**
1. **Upload** the log (documented below)
1. **Report** the test in this issue thread!
## Test Procedures
https://docs.px4.io/main/en/test_and_ci/test_flights.html
### How to flash v1.16 pre-release firmware

1. Open QGC
3. Click the Q icon on upper right > Vehicle Setup > Firmware (Step 1 in picture)
4. Connect your flight controller to the computer
5. When the Firmware setup window pops up, click "Advanced settings" checkbox
6. Select "Beat Testing (beta)" from the drop down (Step 2 in picture)
7. Click "Ok"
This should automatically flash & reboot your flight controller with the latest v1.16 beta release!
### How to share your log
First, retreive the log from the flight controller in QGC Q icon > Analyze Tools > Log Download, and find the log you want to download.

Then:
1. Go to https://logs.px4.io/
2. Click on "Flight Report" tab (this allows public viewing of the log in the [browse page](https://logs.px4.io/browse))
3. Add the ULog file
5. Fill in the description, feedback, and video URL (if available)
6. Click "Upload"
7. Copy and paste the link of the log, and share it to this thread
When posting on this thread, please mention what kind of test it was (especially if it is one of the testing matrix options) & general info behind it!
## Questions?
Feel free to ask any questions regarding flight testing in the #dev-team channel in the [discord server](https://discord.gg/dronecode)!
## Results (05/12/25)
💪 **Release Testing**
| Date | Status | Submitter | Release | Platform | Flight Controller | Flights / Logs | Notes | Link |
| --------- | ------ | ------------ | -------------- | ---------- | ----------------- | -------------- | ------------------------------------------------------------------------- | --------------------------------------------------------------------------------- |
| 1/16/2025 | ❌ | afwilkin | v1.16.0-alpha1 | Quadcopter | Pixhawk 4 | 2 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2596594336) |
| 1/23/2025 | ✅ | afwilkin | v1.16.0-alpha1 | Quadcopter | Pixhawk 4 | 2 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2611482935) |
| 1/29/2025 | ✅ | afwilkin | v1.16.0-alpha1 | Quadcopter | Pixhawk 4 | 6 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2622581014) |
| 1/29/2025 | ✅ | afwilkin | v1.16.0-alpha1 | Quadcopter | Pixhawk 4 | 2 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2622581014) |
| 2/10/2025 | ✅ | afwilkin | v1.16.0-alpha1 | Quadcopter | Pixhawk 4 | 5 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2649177017) |
| 3/5/2025 | ✅ | DroneWuKong | v1.16.0-rc1 | Quadcopter | Pixhawk 6X-RT | 11 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2851994468) |
| 5/9/2025 | ✅ | afwilkin | v1.16.0-rc1 | Quadcopter | Pixhawk 6C | 2 | | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2867864092) |
| 5/13/2025 | ✅ | TeddyZaremba | v1.16.0-rc1 | Quadcopter | VOXL 2 | 8 | [Precision land issue](https://github.com/PX4/PX4-Autopilot/issues/24850) | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2880662926) |
| 5/19/2025 | ⚠️ | dk7xe | v1.16.0-rc1 | Quadcopter | Pixhawk 6X-RT | 9 | Various inconsistencies | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2895445954) |
| 5/20/2025 | ✅ | dirksavage88 | v1.16.0-rc1 | Quadcopter | Pixhawk 6X | 8 | QGC v5 Crash | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2898223625) |
| 5/21/2025 | ⚠️ | DroneWuKong | v1.16.0-rc1 | Quadcopter | Cube Orange+ | 1 | No GPS | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2899811372) |
| 5/21/2025 | ⚠️ | JulianOes | v1.16.0-rc1 | Quadcopter | Cube Orange+ | 1 | Tuning required | [Link](https://github.com/PX4/PX4-Autopilot/issues/24188#issuecomment-2901915380) |
Issues Tracker
opened 12:55PM - 20 Jan 25 UTC
bug-report
### Describe the bug
When configuring the autopilot to be in Generic Standard P… lane the actuator outputs seemed to be glitchy. When putting the scope on the signal I noticed this.

As you can see shortly after `DShot::Run()` is called it get called a second time and then it operates @ 400Hz.
When using multicopter (MC) I don't see this behaviour
### To Reproduce
Reset FMU, select "Generic Standard Plane" airframe.
In actuators select dshot, and set MAIN1 to Motor 1.
Then connect scope on the Pin and you see the double output
### Expected behavior
A periodic pulse of the Dshot output without bursts
### Screenshot / Media
_No response_
### Flight Log
_No response_
### Software Version
Main
### Flight controller
V6X-RT
### Vehicle type
Fixed Wing
### How are the different components wired up (including port information)
_No response_
### Additional context
_No response_
Community Q&A / PRs for Review
Q1: @stevejohn163 While flying the drone in Position mode using MANUAL_CONTROL joystick inputs, I want to temporarily override the yaw axis — for example, to automatically yaw the drone 90 degrees when a button is pressed. Is it possible to override the yaw input using a MAVLink message while still receiving manual joystick input via MANUAL_CONTROL? If so, which MAVLink message allows overriding specifically the yaw axis in Position mode?
Q2: @alexcekay What would be the possible way to save flash size for specific frames or board variant?
Discussed PRs:
Fix reporting of connected battery by DonLakeFlyer · Pull Request #24800 · PX4/PX4-Autopilot · GitHub
CC: @dagar ready to merge maybe?
feat: configurable board pwm freq from Kconfig by Pedro-Roque · Pull Request #24787 · PX4/PX4-Autopilot · GitHub
feat: spacecraft tooling for commander and VehicleStatus by Pedro-Roque · Pull Request #24716 · PX4/PX4-Autopilot · GitHub
3dr_ctrl-zero-h7-oem-revg: Adding missing module which prevented the USB interface to start by TOTON95 · Pull Request #24938 · PX4/PX4-Autopilot · GitHub
Discussed Issues:
Question: While flying the drone in Position mode using MANUAL_CONTROL joystick inputs, I want to temporarily override the yaw axis — for example, to automatically yaw the drone 90 degrees when a button is pressed. Is it possible to override the yaw input using a MAVLink message while still receiving manual joystick input via MANUAL_CONTROL? If so, which MAVLink message allows overriding specifically the yaw axis in Position mode?