PX4 Dev Call: September 21, 2022

September 21, 2022

Join us


  • Community Announcement
  • Community Q&A
  • Project Updates
  • General Discussions
  • Weekly Overview
  • High priority queue
  • Release

:loudspeaker: Community Announcement

PX4 Slack is currently on Pro plan trial (till October 6th)

  • @ryanjAA has archived the whole history of Slack, since the history will be lost soon again
  • @junwoo0914 is also archiving, including all the attachments

About migrating to other chatting platforms without history limit (Slack: 10,000 messages):

  • Mattermost: Open source, self hostable chatting app, no fee for the “Starter” package, which offers everything we need.
    • We need to figure out how to afford the Server. @rroche ?
  • Discord: Free, unlimited-history and used for a lot of other open-source projects.
    • NuttX, Ardupilot, DroneCAN are already on Discord
    • Need to check if we can migrate ‘out’ of discord (i.e. do we have a back-up?)

Both of the platforms mentioned above are migrate-able (using the utility used for archiving the Slack history)

Previously replacement via ‘Matrix’ was tried. The Linux Foundation was hosting them for projects. However, when PX4 project tried to use it, Matrix was too outdated and users didn’t like them so much. So Migration was cancelled.

Linux Foundation should have updated Matrix, but seems like it’s not on their roadmap to update Matrix. It’s not a priority for now.

Slack doesn’t have open-source project special trial. And we don’t qualify as ‘non-profit’ according to their standards.

Conclusion: Let’s try discord. We don’t need to self-host.

  • Channels to pertain:
  • @ryanjAA and @junwoo0914 will make the transition & share the Discord Server to the PX4 Slack for trial & feedback this week.
  • Can the history be publicly indexed?
  • Can discord have the ‘thread’ like Slack?

:people_holding_hands: Community Q&A (No deep technical discussions)

:exclamation: Guideline for asking a Question

  1. Specify what you are trying to achieve
  2. Specify what environment / platform you are using
  3. Prepare a Link or Document to help understand if possible
  4. First, ask the question on the Slack or create a Github Issue!
  5. If you take over 5 minutes for the question, please continue in Slack or a Github Issue.

Q.1 : Mechanical vibration dampening solution - Chris

:construction_worker_woman: Project Updates

P.1 : Altitude calculation improvement for underwater vehicles - Charles

Work in progress.

:thinking: General Discussions

D.1 : RSSI / IO racing condition - Ryan

D.2 : Splitting out ‘Focus’ groups bi-weekly - TJ

Our dev-call is quite broad. Proposing organising a focus group (VTOL / Multicopter / Fixed Wing / etc.) meetings separately.

Tuesday 5pm CET (UTC +1) could be our schedule. Starting next week, Fixed-Wing/VTOL meeting will happen.

It was added to Dronecode calender: Dronecode Calendar — Dronecode Foundation
@tstastny will post on fixed-wing/vtol slack group chat for visibility.

:calendar: Weekly Overview

:mouse2: Github

Recently updated Issues / PRs in PX4-Autopilot Link

Pull Requests

:computer: Slack

:phone: Last Dev-Call

PX4 Dev Call: April 27, 2022

:exclamation: High priority queue

Discussion based on: High-Priority Queue · GitHub

:ear_of_rice: Release

Ahah, this is cool that calls are going to be separated, I will not need to hesitateto talk and ask my questions afterwards. We will have enough time. :joy:

1 Like