# PX4 Sync / Q&A: Feb 05, 2025 **URL:** \ **Category:** PX4 Autopilot\ **Created:** [February 4, 2025, 2:19am UTC](https://discuss.px4.io/t/px4-sync-q-a-feb-05-2025/43562 "2025-02-04T02:19:28Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![farhang](https://discuss.px4.io/user_avatar/discuss.px4.io/farhang/32/17881_2.png) [@farhang](https://discuss.px4.io/u/farhang)\ **Post date:** [February 4, 2025, 2:19am UTC](https://discuss.px4.io/t/px4-sync-q-a-feb-05-2025/43562/1 "2025-02-04T02:19:28Z")
PX4 Sync / Q&A: Feb 05, 2025 [Dronecode Calendar](https://dronecode.org/calendar/) ## Agenda - Announcements - Future Events - Flight Testing Update - Release Discussion - Bug Report / Q&A ### Announcements New ARK Flow MR is out: > **[ARK Flow MR – ARK Electronics](https://arkelectron.com/product/ark-flow-mr/)** ### Future Events - [OSS NA 2025 - Denver CO - June 23-25](https://events.linuxfoundation.org/open-source-summit-north-america/program/cfp/) - CFP Closes February 17th - [ICUAS](https://uasconferences.com/2025_icuas/) May 14-17, Charlotte, USA ### Flight Testing Update We are running a beta program with [Ascend Engineering](https://www.ascendengineer.com) (Chicago). They will be running flight testing for the community as part of an arrangement with Dronecode **How to reach out to the team** - GitHub: Tag user **@PX4/testflights** - Discord: [#flight-testing](https://discord.com/channels/1022170275984457759/1330992113835311266) - 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](https://github.com/orgs/PX4/projects/52) - Make sure to specify any hardware/software requirements as much as possible Flight Testing board: 👇 👇 👇 > **[Flight Testing ✈️ • PX4](https://github.com/orgs/PX4/projects/52)** > > Flight Testing ✈️ ### Release Discussion **Project Board** For release coordination, we will be using the project board. 👇 [Project Board Link](https://github.com/orgs/PX4/projects/45) v1.16 Release **Discussion** ### Bug report / Q&A 1- [[Bug] Multi EKF vehicle local positions starting with large offset on quad indoors · Issue #24206 · PX4/PX4-Autopilot · GitHub](https://github.com/PX4/PX4-Autopilot/issues/24206) 2- @Teddy_Zaremba Running into an issue in 1.16 alpha where EKF2 isn’t fusing vision data. Does anyone know if something changed between 1.15.3 and 1.16 alpha with how external vision gets fused? [http://flight-review.modalai.com/plot\_app?log=039356e2-3ed3-4356-b315-5b43f6aec4e0](http://flight-review.modalai.com/plot_app?log=039356e2-3ed3-4356-b315-5b43f6aec4e0) The log before and after is better to be provided. 3- @AWilkins_Ascend Hold mode without GPS fusion: How different 1.15 and 1.16 are interacting with the Hold mode without a global position. The tests are going to be done by the flight test team first in SITL and hardware to figure out how the navigator is handling the situation. 4 - [[Bug] Failed to get DroneCAN (UAVCAN) parameters list · Issue #24268 · PX4/PX4-Autopilot · GitHub](https://github.com/PX4/PX4-Autopilot/issues/24268) ### PRs needing review > > > \### Solved Problem > Provides support for spacecraft-like vehicles available in h…ttps://github.com/DISCOWER/PX4-Space-Systems . This PR introduces spacecraft board for SITL, as well as a barebones allocator for preliminary spacecraft build targets. > > \### Solution > \- Add spacecraft SITL board > \- Add barebones spacecraft control allocator > > \### Changelog Entry > For release notes: > \`\`\` > Feature/Bugfix: Support for spacecraft vehicles > New parameter: > Documentation: > \`\`\` > > \### Test coverage > \- Simulation/hardware testing: more info here http://atmos.discower.io/ ---
**Author:** ![rroche](https://discuss.px4.io/user_avatar/discuss.px4.io/rroche/32/17635_2.png) [@rroche](https://discuss.px4.io/u/rroche)\ **Post date:** [February 4, 2025, 8:24am UTC](https://discuss.px4.io/t/px4-sync-q-a-feb-05-2025/43562/2 "2025-02-04T08:24:43Z")
Team I won’t be able to join you this week again. Please ping me if there are any action items for me. ---
**Author:** ![Patrik\_Pordi1](https://discuss.px4.io/user_avatar/discuss.px4.io/patrik_pordi1/32/18104_2.png) [@Patrik\_Pordi1](https://discuss.px4.io/u/Patrik_Pordi1)\ **Post date:** [February 5, 2025, 12:18am UTC](https://discuss.px4.io/t/px4-sync-q-a-feb-05-2025/43562/3 "2025-02-05T00:18:30Z")
Could we have a discussion on our issue we talked about 3 weeks ago, regarding the indoor flights without gps? > > > \### Describe the bug > > I’ve been facing significant issues with quads using opt…ical flow for localization indoors(no GPS and EKF2\_HGT\_REF=RANGE). The estimators have a large offset from each other(20-500 m), if the estimator switches the drones tries to compensate. It happens occasionally. > > \### To Reproduce > > Fly indoors with no GPS and EKF2\_HGT\_REF=RANGE in the latest main in position/offboard. > > \### Expected behavior > > If the estimator switches the drone should should stay where it is since the estimates should align. > > \### Screenshot / Media > > !\[image\](https://github.com/user-attachments/assets/108a8736-d2ea-4a50-b458-ea4694f5b745) > !\[image\](https://github.com/user-attachments/assets/c3d5fc08-51a5-4910-af74-54e3372ba70f) > > > \### Flight Log > > https://review.px4.io/plot\_app?log=6c072e4a-e0aa-4a46-9833-78db51355d37 > https://review.px4.io/plot\_app?log=6e490f75-ed41-477a-9d91-771896215a7d > > \### Software Version > > Main > > \### Flight controller > > ARKV6X Flight Controller > > \### Vehicle type > > Multicopter > > \### How are the different components wired up (including port information) > > \_No response\_ > > \### Additional context > > I am also having issues with dist\_bottom\_valid behaving weirdly and invoking fail safe even though the drone seemed fine otherwise. ![Screenshot from 2025-02-04 16-36-54](https://discuss.px4.io/uploads/default/original/3X/6/2/62fedf40ed2cfe9adcb1cc3391d3c2dea3f43545.png) ![Screenshot from 2025-02-04 16-32-13](https://discuss.px4.io/uploads/default/original/3X/0/4/045e7a12f0d116f9c60838f19f8443a468621b42.png) ---
**Author:** ![farhang](https://discuss.px4.io/user_avatar/discuss.px4.io/farhang/32/17881_2.png) [@farhang](https://discuss.px4.io/u/farhang)\ **Post date:** [February 5, 2025, 12:33am UTC](https://discuss.px4.io/t/px4-sync-q-a-feb-05-2025/43562/4 "2025-02-05T00:33:17Z")
Thank you Patrik, Added.