PX4 Dev Call: May 11, 2022

May 11, 2022

Join us


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

:loudspeaker: Community Announcement

1 MONTH until the PX4 Dev Summit!! :tada:

: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 understanding 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 : Mission index - Safy

Does anyone know why MAVROS topic /mavros/mission/waypoints would give the current_seq: 2 when the list is empty ? shouldnt it be 0 or something that means nothing like -1 ?

  • Posted on Slack
  • Creating a software using Mission in PX4
  • Answer
    • Try to capture the mission_ uORB message through console (MAVLink Console, QGC)

Q.2 : RC input & Joystick - Safy :joystick:

  • Currently when PX4 starts up, it registers Joystick, then uses RC, etc…
  • Feedback
    • Fix for this would be an UI change where it would expose this parameter (COM_RC_IN_MODE) selection - Matthias
    • It’s not safe to configure Joystick to control when RC is already in control :thinking:
    • We could also alert users with an MAVLink message so that it would appear on QGC - Daniel
  • We could add this alert message for the case when an input (e.g. Joystick) gives valid data, but is not configured to be used.
  • TODO : @dagar will check ManualControl module to check if we can add message alerts.

:construction_worker_woman: Project Updates

P.1 : Follow Target Improvement PR got merged!

P.2 : SocketCAN FDCAN driver for STM32H7 merged into NuttX - Jacob Crabill

:thinking: General Discussions

D.1 : Changing the number of Flight Mode slots from 6 → 3

:calendar: Weekly Overview

:mouse2: Github

Recently updated Issues / PRs in PX4-Autopilot Link

Pull Requests


:computer: Slack

:phone: Last Dev-Call

PX4 Dev Call: May 04, 2022

:exclamation: High priority queue

Discussion based on : High-Priority Queue · GitHub

:ear_of_rice: Release