Dev Call Mar 18 2019 2300 UTC

Development Team
2

Attendee count (max): 17

UTC2304 - https://github.com/ArduPilot/ardupilot/pull/10837

  • Mark ready this is ready for further testing

  • 3-vs-2 tailsitter

  • One has integrator the other doesn’t

  • Target attitude vs target rate

  • Not really an integrator

  • Early return in qacro?

    • MarkW has been considering this in terms of tailsitters

    • So early-returned from qacro

    • Check is_tailitter

    • Pete’s been thinking in terms of ordinary quadplane

      • What about the AddictionX?

        • What happens to its control surfaces?

          • Tested and it worked

      • Feature-creep to consider QuadPlanes?

        • Have to refuse QACRO for a normal quadplane

          • Or stop control surfaces (moving and motor)

            • Separate work to get those working in qacro for a normal quadplane?

  • Tested on both old and new airframes

  • Merged!

UTC2313 - https://github.com/ArduPilot/ardupilot/pull/10836

  • Fixing a bug in attitudes

  • Couldn’t arm

  • Attitudes_consistent

  • Still something going on with ahrs trim

  • Some tailsitters require 0.2 radians (1 degrees) trim

    • In fixed-wing mode

    • Won’t arm because of threshold in test

    • Convert all to common frame then compare

    • Or add trim values to margin

  • Accounting for dog-chewed propellors

UTC2320 - https://github.com/ArduPilot/ardupilot/pull/10828

  • AC_AttitudeControl - fun mathematics matrix algebra

  • _M and _P

    • Multicopter and Plane

  • Docstrings

  • Quaternion inverse expensive?

    • Inversion multiply functions can be much more efficient

    • No, not expensive - sign change

  • Need to look hard for things like division-by-zeroes

    • Particularly any state change which will be persistent

  • Constrain floats?

    • Wrap pi

  • Tridge relies on Mark and Pete to maintain tailsitter

    • Means they have to be very careful as tridge won’t be checking extremely hard

  • Would be nice to get some video

UTC2329 - https://github.com/ArduPilot/ardupilot/pull/10819

  • Tridge thinks its good

  • merged

UTC2331 - https://github.com/ArduPilot/ardupilot/pull/10818

  • We should have a clang++ thing in CI

  • Need a MacOSX CI option

  • We’ll be killing AppVeyor

UTC2334 - https://github.com/ArduPilot/ardupilot/pull/10806

  • Three bugfixes in one

UTC2337 - https://github.com/ArduPilot/ardupilot/pull/10748

  • Add 0,0 functionality

  • Can be merged after that

UTC2344 - AP_AHRS: add new method get_quat_body_to_ned()

  • There was a TODO to add this

  • So Mark added it

  • merged!

UTC2345 - https://github.com/ArduPilot/ardupilot/pull/10720

  • Needs Randy to look at it

  • It is a safety thing

UTC2348 - https://github.com/ArduPilot/ardupilot/pull/10634

  • Should we move rebooting up in the HAL

  • Too many concepts of armed in the code

  • merged

UTC2353 - https://github.com/ArduPilot/ardupilot/pull/10614

  • Crow flaps

  • Tridge still needs to look at it

  • Video!

  • Added dlg glider model

UTC2355 - https://github.com/ArduPilot/ardupilot/pull/10570

  • Hard to review this one

  • If MdB is OK with it then we can merge it

UTC0002 - https://github.com/ArduPilot/ardupilot/pull/10499

  • Needs testing

  • Will test this week

  • Memory reclamation discussions to be had!

    • Over-allocation of buffer sizes

    • Scaling buffers

    • Stop allocating buffers on DMA buffers

    • [11:09 AM] To Weekly devcall: We could add some state logging into our memory allocation routines so we know where we’re allocating?

UTC0010 - https://github.com/ArduPilot/ardupilot/pull/10457

UTC0020 - https://github.com/ArduPilot/ardupilot/pull/9716/files

  • Requires Randy to look at it

UTC0021 - https://github.com/ArduPilot/ardupilot/pull/9143

  • Add license boilerplate

  • Add explanation of what it does

  • Do not add underscores to variables

  • A few more comments would be nice!

  • Enum shouldn’t be 32-bit

  • Enum should be declared with (1<<1) etc etc

  • Can be merged after these changes are made

UTC0027 - https://github.com/ArduPilot/ardupilot/pull/9017

  • RTL changes need Randy to look at them

UTC0029 - fuel flow battery issue

  • Fixed problems Michael saw

  • Worked with Buzz on this one

  • MdB has no complaints left

  • Someone else wants to do another backend

    • Some PWM values

    • Some give pulse-per-volume

    • Which channel is it coming in on?

      • Use RC_Channel option for it!

  • How does this work on a mixed-input thing?

    • E.g. with sbus

  • Using RC options for RPM etc etc would allow us to solve the reuse problem

    • Brd_pwm_count stuff

  • Merged!

UTC0034 - warn-if-unused on AHRS

UTC0042 - https://github.com/ArduPilot/mavesp8266/pull/2

  • Still doesn’t work for tridge

  • Peter will iterate

    • Dash! Gah!

UTC0046 - GSoC

  • GSoC section on Discourse

    • Need to answer students who post stuff there

  • Also on Gitter

  • Need a good project

  • [11:48 AM] (Channel) …: Maybe harsh, but it’s made it clear enough that if theycan’t figure out how to propose a project I’m not sure we need to be obsessing about that person…

  • Perhaps repost this:

UTC0049 - Plane update

  • Others are doing the hard work!

  • Tom is keen on getting Onion in

UTC0053 - going up as part of RTL - is it in stable?

  • MdB think it

  • May have already been fixed in stable

    • Nate to supply information

UTC0054 - backport of PWM rangefinder

  • this should get into stable

UTC0100 - developer conference

  • Many people on this call will be in CBR shortly!

  • Good start yesterday with Miro, Yibo, James and Jonathon

  • Lots of people starting to roll in

  • Tridge yet to come up with something to talk about

  • CAN peripherals

    • Compass and GPS libraries

  • Currently in pre-conference-week

    • Weekend conference coming up!

  • Possible live-stream of panel discussion

UTC0104 - some quick live-patches for master

  • Compilation fix

  • Warnings fix

UTC0111 - rebase of Amilcar’s stuff

  • On top of current corrected branches