PX4 Dev Call: November 16, 2022

November 16, 2022

Join us


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

:loudspeaker: Community Announcement

PX4 Irchel SITL Site meetup happened!

This is not SITL!

Log is here: https://logs.px4.io/plot_app?log=1bc00b8c-b61c-4e2b-b9e0-b8e2cb78ee53

If any issue is found, please share on Discord / Github!

: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 : HITL Takeoff fails on JSBSim

I’m trying to do HITL simulation for a FixedWing aircraft on JSBSim, I can connect and ARM the plane, when trying to takeoff, it rolls / goes haywire and crashes. I have tried every takeoff method. SITL works already.

Manual takeoff ( RC and Joystick ) , Mission mode, Offboard mode.

I’m have tried HITL simulation on CubeOrange on PX4 version 1.12.3 / 1.13.0. and ran the simulation HITL Branch on Ubuntu 20.

  • RASCAL XML was changed

Diagnosis: Vehicle’s Actuator ouptut is probably not correctly configured.

Actuator doc on actuator ouput: Actuator Configuration and Testing | PX4 User Guide

Q.2 : Camera Trigger not working - Jay :camera:

With A7R Camera, the camera isn’t triggering.

Camera_Trigger: Output to trigger camera. Enabled when TRIG_MODE==0. Configured via TRIG_* parameters.
From here: Actuator Configuration and Testing | PX4 User Guide

Using camera trigger test app. Seems like it is trying to focus the camera or sth.

Matthias: Maybe it’s because trigger pulses are too frequently being sent out (e.g. When you press camera trigger quickly, it usually focuses).

TODO: Will check the actual PWM output via Signal analyser.

:construction_worker_woman: Project Updates

P.1 :

:thinking: General Discussions

D.1 : MAVLink PR Revert - Alex

TODO: Catch Hamish to discuss why this broke QGC Communication part of PX4.

:calendar: Weekly Overview

:mouse2: Github

Recently updated Issues / PRs in PX4-Autopilot Link

Pull Requests

:purple_heart: Discord

:phone: Last Dev-Call

PX4 Dev Call: November 09, 2022

:exclamation: High priority queue

Discussion based on: High-Priority Queue · GitHub

:ear_of_rice: Release