Attendee count (max): 15
UTC2300 - https://github.com/ArduPilot/ardupilot/pull/17521
- FF tuning items for quadplane TX tuning
- A few things to fix yet
UTC2303 - use vehicle physics for multiple sims
UTC2317 - https://github.com/ArduPilot/ardupilot/pull/17668
- Interpolated matrix backends
- Useful for vehicles that can change their shape
- Should be able to support tilting-motor quads with this
UTC2332 - https://github.com/ArduPilot/ardupilot/pull/17870
- Send battery resistance in a separate message
- Alternatively, use a BAT_OPTION bit to send through the resting voltage in the BATTERY_STATUS message
- Needs to make sure information can be supplied
UTC2351 - https://github.com/ArduPilot/ardupilot/pull/17872
- SITL -L can now take addresses
UTC2357 - https://github.com/ArduPilot/ardupilot/pull/17875
- Randy wants to look more closely at this
- Make setting home an arming check
- non-GPS mode like stabilize and GPS location is on other side of planet - should you allow arming?
- Can you then go into loiter if it gets GPS in-flight if origin is > 250km away?
- GPS glitch puts home a long way away?
- Does any of this stuff actually happen in reality?
- Home and origin set before the EKF does its quality checks
- Threshold-based distance checking - 250km or 2km doesn’t make much difference?
- Randy will chase this up
UTC0014 - https://github.com/ArduPilot/ardupilot/pull/17344
- Correct coordinate frame on return mavlink message for position target
- Josh to put an autotest together showing probem being fixed
UTC0025 - https://github.com/ArduPilot/ardupilot/pull/17356
- Double-precision EKF
- Part of effort to get flying at very long distance
- Accuracy of EKF over relatively short distances is also actually noticeable
- This is post-4.1
- Autotests wouldn’t test single precision as-is
- Don’t want to run both single and double tests in autotest
- Use single-precision replay to ensure we get the same results
- build.CopterSinglePrecision and test.CopterSinglePrecision
- Previous PR made 64-bit PID object
- Which one you choose may make a difference when you go to work at distance
- One outstanding issue
- Precision positioning of a vehicle
- E.g. fly to a given lat/lon
- Even with double-precision
- @ 30k
- With cm-accurate GPS
- Won’t land exactly where you ask it to land
- Maybe 0.5m at 30km
- Single vs double using square of a distance?
- Also affects takeoff
- Takeoff did not complete
- Flew to a location 2.5m from takeoff location
- Outside the radius of takeoff controller
- (100km origin-distance)
- Entire mission flown with that error
UTC0039 - https://github.com/ArduPilot/ardupilot/pull/17882
- Tiltrotot bugfix qloiter/qrt with thr_min !=0
- Internal combustion engine with tilts?
- Q_VFWD which controls throttle is assuming one source of forward propulsion
- We kind of assume a single source of forward propulsion
- Too contrived?
- No, they actually do exist
- Canted motors are increasingly popular
- Don’t set throttle min?
- This patch overrides the user’s request
- We know better?
- We’ve traditionally done X when the user specifies X
- Merged as tridge doesn’t want to argue any more
UTC0057 - https://github.com/ArduPilot/ardupilot/pull/16167/files
- Timing as when we get this in?
- Needs Michael to look at it
UTC0128 - https://github.com/ArduPilot/ardupilot/pull/17886
UTC0129 - https://github.com/ArduPilot/ardupilot/issues/15941
- Some autotune problems have come up
- Smax issue?
- waiting for Copter beta5 from Randy before doing another beta
UTC0130 - https://github.com/ArduPilot/ardupilot/issues/16478
- Pretty good shape for beta5
- Want Leonard’s most recent guided-mode PR before we do the beta
- Many successes over last week
- Inc dolphin issue
- Inc loiter bucketing
- 3, 4 or 5 new issues
- Multiple reports on CubePilot side that i2c ports aren’t working if uavcan gpss are enabled
- Build env setup on mac (Sid looking at)
- Some reports of ground effect compensation not working as well as it did
- Has changed a lot since 4.0.7
- Beta5 this week sometime
UTC0136 - https://github.com/ArduPilot/ardupilot/issues/17116
UTC0136 - ArduPilot Configurator Demo