Dev Call Sept 27, 2021

OSD Sidebars

ArduPilot:master ← squilter:max7456-sidebars

opened 02:23AM - 26 Jan 21 UTC

squilter

+535 -417

Adds sidebars. Video here: https://youtu.be/xC-qTiLY_2U Discussion points: …1. Current artificial horizon is slightly off-center, so I made this off-center to match it. Is that a problem? 2. Any downside to increasing the OSD update rate to 20Hz (from 10)? It looks much smoother in sitl, but I'm not sure if there will be any negative side-effects on hardware. Currently only works with clarity font. I can update the other fonts later.

AP_GPS: correct GPS switching when GPS blending disabled

ArduPilot:master ← peterbarker:pr/gps-primary-fixes

opened 02:32AM - 06 Aug 21 UTC

peterbarker

+10 -3

`GPS_BLENDED_INSTANCE` was used to hack out the guts of `update_primary` when we… wanted to save space on `AP_Periph`. That broke primary selection in the case that blending was disabled but more than one receiver was allowed. AFAIK we don't use that in any configuration we compile by default, so while this PR should fix a problem, probably nobody would ever notice.

Tools: Enable Unit Testing for SITL

ArduPilot:master ← hendjoshsr71:pr/sitl_unit_testing

opened 07:52AM - 20 Aug 21 UTC

+121 -55

This enables units tests to be run by CI when built under SITL. The reasoning fo…r this came from PR #18365 & #18363 where I was trying to fix simulated drivers and spent far to long in the debugger when a unit test would have worked perfectly. It enables GTest to catch exit events such as an abort. Thus we can test that SITL creates Internal_Errors where required and prevent regressions as a bonus. There are some details, such as the method to detect if the unit tests or running inside the `Panic()`, that I'm not sure will work across all platforms? Log from the "test unit tests ...." tab in this PR showing the `Panic: AP_Internal_Error` being printed and caught by GTest for evaluation. ![image](https://user-images.githubusercontent.com/69225461/130198335-5069c3cf-3443-4b4e-9e9b-604423f3c9d1.png)

SITL: Add build sitl32 option for SITL, autotests, & unit tests

ArduPilot:master ← hendjoshsr71:pr/build_sitl32_option

opened 10:09PM - 07 Sep 21 UTC

+64 -17

This adds a `sitl_32bit` board to allow easier compiling of sitl, autotest, unit… tests, etc using the flag `--sitl-32bit` Unit_tests: Tested and found my addition to the MS5611's simulated driver was missing int64_t() in 4 spots so I fixed that as well here. Autotest: I built with this option using plane & copter and then ran `test.Plane.AirspeedDrivers` & `test.Copter.BaroDrivers` simvehicle.py: tested it built and launched with copter and plane I think I got all the spots that hard coded `\sitl` but possibly I missed some cases or some caveats? Also there are probably betters ways to do this? But no better way to learn the build system then to try :)

Plane: Quadplane: add new mode: loiter to alt then Qland.

ArduPilot:master ← IamPete1:loiter_to_alt_then_qland

opened 11:23PM - 18 Sep 21 UTC

+178 -28

This work is supported by ARACE. This adds a new mode that will loiter to QRT…L altitude in forward flight then switch to QLAND. For use when a QLAND would result in trying to loiter down from a large altitude. If in VTOL flight it will switch straight to QLAND, if in forward flight it will loiter down first. This is just the mode, still to be done is adding it to the various fail-safe options, mode switches ect.

Sub: auto & circle mode keep controllers initialized when disarmed

ArduPilot:master ← hendjoshsr71:pr/sub_auto_initialize_control_when_disarmed

opened 08:37AM - 20 Sep 21 UTC

+7 -3

This fixes an issue reported on discuss [here](https://discuss.ardupilot.org/t/m…emory-error-after-gcs-failsafe/76208). Auto_mode starts in `auto_loiter`. However, while disarmed it does not keep `wp_nav` and `pos_control` initialized for the next time when the vehicle is armed and pos_control_run() occurs. Thus when `pos_control_run()` happens we get the internal error in SITL below because we have not initialized the controllers recently. Same happens in CircleMode. To replicate the issue: -upload a mission with a few WPs `mode auto` (or 'mode circle`) `arm throttle` You should get this internal error (just a difference between modes) ![image](https://user-images.githubusercontent.com/69225461/133974511-da4be996-94f6-4b63-9924-b33a86b43f65.png)

Plane: Tailsitter: add param for VTOL transition throttle and fix throttle scaling

ArduPilot:master ← IamPete1:tailsitter_throttle_scaling

opened 06:12PM - 20 Sep 21 UTC

+78 -32

Team effort by @Hwurzburg and myself. Combination of https://github.com/ArduPilo…t/ardupilot/pull/18428 and https://github.com/ArduPilot/ardupilot/pull/18419 Firstly this fixes a bug where tailsitter was applying throttle scaling twice when in a Qassist transition. Secondly it adds a param to hard code throttle level for transition to VTOL. For copter tailsitters like the H wing where throttle mix will bump the throttle to keep attitude control you can set the throttle to 0 and gain very little height. @lthall In order to maintain the current tailsitter behavior I have had to add inverse functions for thrust to throttle scaling to AP_MotorsMulticopter. In the process for that I have made a small tidy up to the normal `apply_thrust_curve_and_volt_scaling` function and added battery scaling to the expo = 0 case.

AP_BLHeli: use correct enum for rover PWM type

ArduPilot:master ← IamPete1:brushed_bipolar_fix

opened 11:56PM - 21 Sep 21 UTC

+104 -74

Fixes #18729 The AP motors enum is not the same as the rover one. This is …rover: https://github.com/ArduPilot/ardupilot/blob/d853d16c42acc21ce762a8db8299926f752b71a4/libraries/AP_Motors/AP_Motors_Class.h#L222-L230 This is AP motors: https://github.com/ArduPilot/ardupilot/blob/d853d16c42acc21ce762a8db8299926f752b71a4/libraries/AR_Motors/AP_MotorsUGV.h#L15-L25 Rover has `PWM_TYPE_BRUSHED_BIPOLAR` slotted in at 4 so it was showing up as digital when compared the to the AP motors enum. The short term fix is to use the right enum. But we really should only have one. This mistake could well exist in other places too, although I could not see any after a very quick look. I would guess this also means its impossible to override to `PWM_TYPE_BRUSHED_BIPOLAR` on rover using the `BLH` params.

Add ESC_TELEMETRY_1_TO_4 to the mavlink_id_to_ap_message_id table

ArduPilot:master ← amilcarlucas:pr/add-TELEM_1_TO_4-to-request-table

opened 04:06PM - 22 Sep 21 UTC

amilcarlucas

+1 -0

Tested with mavros, works fine, and will automatically trigger the 5_TO_8 and 9_…TO_12 messages if necessary. ``` Binary text data bss total --------------- ------------ ----------- ----------- ------------ ardusub 8 (+0.0005%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0004%) arduplane 8 (+0.0005%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0004%) blimp 8 (+0.0006%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0005%) arducopter-heli 8 (+0.0005%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0004%) antennatracker 8 (+0.0006%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0005%) ardurover 8 (+0.0005%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0004%) arducopter 8 (+0.0005%) 0 (0.0000%) 0 (0.0000%) 8 (+0.0004%) ```

AP_BattMonitor: capacity_remaining_pct add checks for healthy status

ArduPilot:master ← hendjoshsr71:pr/batt_remain_pct_checks

opened 05:39AM - 23 Sep 21 UTC

+19 -5

This adds checks to ensure that when retrieving the capacity_remaing_pct the mon…itor `has_current()` reading capability and is in a healthy state. There are few spots in GCS_Mavlink() where we do these checks already and I think they should always be checked instead when using this function. Electrically, `has_consumed_energy()` would fit better here, but then all monitors would need to override that as well... I choose the smaller change set. Tested in SITL that switching to Analog::Voltage_only returns -1 capacity out via mavlink Battery Status and that Analog::Voltage_and_Current returns the capacity_remaing correctly

ChibiOS: allow GPIO alt config

ArduPilot:master ← IamPete1:ALT_GPIO

opened 06:14PM - 23 Sep 21 UTC

+78 -29

This work is supported by CubePilot. This allows changing pins to GPIO using …`BRD_ALT_CONFIG`. This should work for all the existing types, I have also added support for changing UART RTS and CTS pins to other things. I have not added the ability to change other things to RTS and CTS. This also hides `BRD_ALT_CONFIG` on builds where it will not do anything. I have implemented this for CubeOrange telem1 RTS CTS. Tested with both relay and button work with `BRD_ALT_CONFIG` = 1 and don't with `BRD_ALT_CONFIG` = 0. I have not tested that the RTS CTS pins still work with `BRD_ALT_CONFIG` = 0, any tips on the best way to do what would be appreciated.

AP_IOMCU: Change ADC scaling to 3.3V

ArduPilot:master ← TunaLobster:pr/fix-iomcu-adc

opened 08:54PM - 23 Sep 21 UTC

TunaLobster

+26 -13

This is a fix for reading the correct voltage on the IOMCU ADC pins. This was fo…und while using the scripting AnalogIn bindings and wonder why the script was reading exactly 3 times that of the multimeter. The scaling used [here](https://github.com/ArduPilot/ardupilot/blob/master/libraries/AP_HAL_ChibiOS/AnalogIn.cpp#L464) is correct for 3.3V 12-bit ADC. I think fixing this is a good idea as the unexpected and required divide by 3 in my Lua scripts is not intuitive. Mapping parameter changes might be a little difficult and I'm not familiar with how to do that. Another option would be to add a wrapper method for scripting that does the divide by 3 for the IOMCU pins. That doesn't sound appealing though.

Move SBP GPS logging into AP_GPS log structures

ArduPilot:master ← peterbarker:pr/move-sbp-logging

opened 11:12AM - 25 Sep 21 UTC

peterbarker

+92 -101

``` 2021-09-25 20:51:49.39: SBPH {TimeUS : 10404170, CrcError : 0, LastInject :… 0, IARhyp : 0} 2021-09-25 20:51:49.59: SBPH {TimeUS : 10604090, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:49.80: SBPH {TimeUS : 10804843, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.00: SBPH {TimeUS : 11004763, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.20: SBPH {TimeUS : 11204683, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.40: SBPH {TimeUS : 11404603, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.60: SBPH {TimeUS : 11604523, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.79: SBPH {TimeUS : 11804443, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:50.99: SBPH {TimeUS : 12004363, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:51.19: SBPH {TimeUS : 12204283, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:51.39: SBPH {TimeUS : 12404203, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:51.59: SBPH {TimeUS : 12604123, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:51.79: SBPH {TimeUS : 12804043, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.00: SBPH {TimeUS : 13004796, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.20: SBPH {TimeUS : 13204716, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.40: SBPH {TimeUS : 13404636, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.60: SBPH {TimeUS : 13604556, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.80: SBPH {TimeUS : 13804476, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:52.99: SBPH {TimeUS : 14004396, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:53.19: SBPH {TimeUS : 14204316, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:53.39: SBPH {TimeUS : 14404236, CrcError : 0, LastInject : 0, IARhyp : 0} 2021-09-25 20:51:53.59: SBPH {TimeUS : 14604156, CrcError : 0, LastInject : 0, IARhyp : 0} ```

Plane

Plane: stable 4.1.0 issues list

opened 03:33AM - 01 Dec 20 UTC

tridge

Plane VTOL-Plane DevCallTopic ReleaseAdmin

This is an issue to gather key issues for the plane 4.1 release - [ ] report… of poor wind estimation on takeoff with no compass: https://discuss.ardupilot.org/t/plane-4-1-0-beta/72434/179?u=tridge #18718 - [x] new quadplane landing system #14938 - [ ] asymmetric qlanding speed/accel limits - [x] new ACPID for fixed wing PIDs #15377 - [ ] disable SMAX when in QAUTOTUNE twitch - [x] EKF3 long distance issue - [x] investigate GPS lag issue - [ ] hybrid landing with RTL/QRTL from high alt #10559 - [ ] need fence status on MissionPlanner - [x] fix log listing stopping logging, which corrupts replay logs - [x] on quadplane land adjust pos for change in EKF position reset to cope with GPS change - [x] clarify GPS pos as vs CoG or vs IMU - [ ] obey primary sensors with EK3_AFFINITY - [ ] rangefinder offset applied twice (#17424) - [ ] ~interrupt storm with misconfigured camera (#17465)~ (not a blocker as it was caught and a misconfiguration) - [x] add API for lock-step detection to suppress panic in pos controller init check - [ ] motors spinning when they shouldn't? https://github.com/ArduPilot/ardupilot/issues/16630 - [ ] main loop stuck when arming MatekF405-STD with soaring enabled - [x] test VTOL approach option for loiter to alt landing - [ ] force arm bypass of logging start and fence auto-enable - [ ] need force_descend change for quadplane: #17824 - [x] fuse sideslip when airspeed enabled - [ ] surface control while booting not working: #17966 Pending quadplane features from Kris: - [x] When the safety switch is disabled, the Tilt servos may oscillate considerably once when connected to the battery. This causes the propeller to strike the wing and damage it. Possible solution: Move BoardConfig.init_safety() in system.cpp to run BoardConfig.init_safety() 2 seconds after init has finished. Update: fixed in #15942 - [ ] In some cases, failsafe will change the flight mode before entering failsafe, which results in the AUTO mode not continuing. Need example log Features for later 4.1.x releases: - [ ] ship landing code #14888 - [ ] sort out CAN baro ordering for plane, maybe option bit in BARO_OPTIONS, on plane default to can baro last - [ ] support rangefinder correction of AP_Terrain data, with configurable time constant

Copter

Copter: 4.1.0 issues list

opened 10:34AM - 02 Feb 21 UTC

rmackay9

Copter DevCallTopic ReleaseAdmin

This is a list of known issues especially blockers for the 4.1.0 copter release.… (also see [Rover-4.1](https://github.com/ArduPilot/ardupilot/issues/17116), [Plane-4.1](https://github.com/ArduPilot/ardupilot/issues/15941), [Wiki-4.1](https://github.com/ArduPilot/ardupilot_wiki/issues/1756)) Blockers before stable release (of 4.1.0): - [ ] Yaw change after Guided mode takeoff completes ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-rc1-released-for-beta-testing/75878/24), [PR](https://github.com/ArduPilot/ardupilot/pull/18700)) - [ ] shift_wp_origin_to_current_pos() not working? (see PR https://github.com/ArduPilot/ardupilot/pull/17294) Nice to have for stable release: - [ ] KDECAN unreliable with more than 2 motors - [ ] update MP's auto analysis because it complains of compass offsets being too large, NaNs ([discussion](https://discuss.ardupilot.org/t/7inch-quadcopter-ac-4-1-0-beta5-inflight-exk3-lane-switch-root-cause-analysis-request/73507/15)) - [ ] 3D Loiter to allow simple avoidance to backaway in 3D - [ ] Avoid "PreArm: Bad GPS Position" if using only optical flow ([issue](https://github.com/ArduPilot/ardupilot/issues/17401)) Existing 4.0 issues: - [ ] SmartRTL can trigger flow-of-control internal error (issue https://github.com/ArduPilot/ardupilot/issues/17416, PR: https://github.com/ArduPilot/ardupilot/pull/17419) - [ ] POS oscillation on unusual EKF condition ([discussion](https://discuss.ardupilot.org/t/ekf3-position-still-going-mad-in-beta5-drone-crashed/73859), [issue](https://github.com/ArduPilot/ardupilot/issues/18169)) - [ ] EKF altitude reset handling ([discussion](https://discuss.ardupilot.org/t/7inch-quadcopter-ac-4-1-0-beta5-inflight-exk3-lane-switch-root-cause-analysis-request/73507/6), [issue](https://github.com/ArduPilot/ardupilot/issues/14224)) - [ ] DO_CAM_TRIGG_DIST doesn't turn off after exiting Auto ([discussion](https://discuss.ardupilot.org/t/camera-trigger-does-not-turn-off-after-switching-to-another-flight-mode/72867), [issue](https://github.com/ArduPilot/ardupilot/issues/17858)) - [ ] loiter-to-alt moves too quickly (4.0 issue) ([code](https://github.com/ArduPilot/ardupilot/blob/master/ArduCopter/mode_auto.cpp#L977-L984)) Reports requiring investigation: - [ ] autopilot reboot if batt monitor changed ([issue](https://github.com/ArduPilot/ardupilot/issues/18780)) - [ ] Scary Guided ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-rc1-released-for-beta-testing/75878/36)) - [ ] GPS instability thread: - [ ] GPS_DRV_OPTIONS not setting UBlox baud rate to 115200? ([discussion](https://discuss.ardupilot.org/t/gps-instability-reinitializiation-during-flight-bn880-mambaf405/74184/71)) - [ ] CRSF + GPS not working well together on MambaF405v2 (GPA.Delta spikes, [discussion](https://discuss.ardupilot.org/t/gps-instability-reinitializiation-during-flight-bn880-mambaf405/74184/38)) - [ ] Mamba losing GPS connection ([discussion](https://discuss.ardupilot.org/t/gps-instability-reinitializiation-during-flight-bn880-mambaf405/74184/5)) -- maybe fixed by GPS_DRV_OPTIONS - [ ] GPS-for-yaw issues - [ ] continuous yaw drift with NMEA GPS-for-yaw ([discussion](https://discuss.ardupilot.org/t/continue-yaw-drift/74997/2)) - [ ] gps-for-yaw fail-over testing leads to GPS glitch and ability to arm ([discussion](https://discuss.ardupilot.org/t/gps-glitching-when-we-have-two-gps-for-yaw-and-make-fail-the-rover-one/74486)) - [ ] 2nd F9 GPS not updating at 5hz during GPS-for-yaw, probably does not have DMA on serial port ([discussion](https://discuss.ardupilot.org/t/unhealthy-gps-signal-when-using-gps-for-yaw/71308)) - [ ] GPS-for-yaw will not use compass at startup ([discussion](https://discuss.ardupilot.org/t/issues-with-gps-for-yaw-and-compass-fall-back/71305)) - [ ] 7-inch quad thread: - [ ] AP_Periph HAL battery monitor default for Matek board ([discussion](https://discuss.ardupilot.org/t/ap-periph-batt-monitor-forced-to-hal-batt-monitor-default-after-reboot/74205), [discussion2](https://discuss.ardupilot.org/t/7inch-quadcopter-ac-4-1-0-beta5-dual-barometer-dps310-i2c-uavcan-error-compass-not-healthy/73783)) - [ ] Matek Slim pre-arm check "Compass not healthy" if external CAN baro is enabled ([discussion](https://discuss.ardupilot.org/t/7inch-quadcopter-ac-4-1-0-beta5-dual-barometer-dps310-i2c-uavcan-error-compass-not-healthy/73783)) - [ ] quadsour reports: - [ ] oscillating pitch in Loiter ([discussion](https://discuss.ardupilot.org/t/loiter-acting-up-with-beta/75178/15)) - [ ] Ground effect compensation not working as well as 4.0 with no GPS? ([discussion](https://discuss.ardupilot.org/t/gnd-effect-comp-not-working-as-good-as-in-copter-4-0/71421/12)) - [ ] quadsour's Pixracer Pro BLHeli passthrough issues but stable works ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta-released-for-beta-testing/70075/36)) -- fixed with latest? @andyp1per knows. - [ ] acro mode loses control when throttle at zero even in airmode ([discussion](https://discuss.ardupilot.org/t/acro-mode-motor-authority-lost-when-rc-throttle-drops-to-zero-even-with-air-mode-enabled/75080)) - [ ] Small EKF alt oscillations when using GPS for alt ([discussion](https://discuss.ardupilot.org/t/altitude-testing-of-beta-5/73228)) - [ ] IMU1 failure handling not working ([4.0.x discussion](https://github.com/ArduPilot/ardupilot/issues/12477)) - [ ] EKF3 yaw drift with no compass higher than EKF2 ([issue](https://github.com/ArduPilot/ardupilot/issues/17030)) - [ ] EKF2 regains GPS while falling, produced invalid climb rate (using modified 4.0.5) (Randy, Tridge, PaulR have logs) - [ ] watchdog reset on modified omnibusf4pro ([issue](https://github.com/ArduPilot/ardupilot/issues/15915)) - [x] FS_OPTIONS not working with RC failsafe? ([issue](https://github.com/ArduPilot/ardupilot/issues/17483), [issue2](https://github.com/ArduPilot/ardupilot/issues/17527)) -- GCS failsafe was disabled. need to improve docs or add pre-arm check? SCurve known issues: - Vehicle will fly below target speed if waypoints are too close together even if vehicle will not stop at waypoints -------- Unresolved issues that will not be resolved in time for 4.1.0 - [ ] Lumenier LUX-H7 (ultimate) F7 board missing 2nd IMU (apaprently same as MatekH743) ([discussion](https://discuss.ardupilot.org/t/arducopter-firmware-on-lumenier-h743-f7-flight-controller-matekh743-firmware-target/72917/2)) - [ ] pre-arm "EK3 sources require RangeFinder" if only 2nd rangefinder is setup [discussion](https://discuss.ardupilot.org/t/prearm-ahrs-ek3-sources-require-rangefinder-error-message-copter-4-1-0/74323/9), [issue](https://github.com/ArduPilot/ardupilot/issues/18205)) - [ ] DShot passthrough not working on Nora and Tekko 35A ESCs ([discussion](https://discuss.ardupilot.org/t/dshot-passthrough-not-working-in-4-1/74186/2)) - [ ] Morse simulator Loiter unstable after PR https://github.com/ArduPilot/ardupilot/pull/17345 (reported by rishabh). Morse closing down it seems so we recommend users move to AirSim -------- Resolved issues that will be included in future releases (but not 4.1.0) - [x] Guided mode not ignoring pilot yaw during takeoff is GUID_OPTIONS bit is set ([issue](https://github.com/ArduPilot/ardupilot/issues/17951), [PR](https://github.com/ArduPilot/ardupilot/pull/18559)) - [x] allow aligning viso yaw when using GPS-for-yaw ([discussion](https://discuss.ardupilot.org/t/vio-alignment-in-primary-lane/72308/5), [issue](https://github.com/ArduPilot/ardupilot/issues/13903)) -- in master, maybe 4.1.1 -------- Resolved issues: - [x] Drift mode controls reversed? ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-rc1-released-for-beta-testing/75878/18)) -- could not reproduce, seems to be fine. - [x] Matek H743-Slim serial1 not working ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-rc1-released-for-beta-testing/75878/10), [PR](https://github.com/ArduPilot/ardupilot/pull/18661)) -- resolved for -rc2 - [x] Dijkstra's in Guided mode not working (reported by Yamaguchi-san, [PR](https://github.com/ArduPilot/ardupilot/pull/18603)) -- resolved for beta9 - [x] Ch6 tuning of WP speed causes div-by-zero in SITL ([discussion](https://discuss.ardupilot.org/t/wp-speed-on-in-flight-tuning-not-functioning/75226/2), [PR](https://github.com/ArduPilot/ardupilot/pull/18560)) -- resolved for beta9 - [x] laggy suface tracking ([discussion](https://discuss.ardupilot.org/t/altitude-overshoot-on-ascent-descent-tuning-help-please/74756/3), [PR](https://github.com/ArduPilot/ardupilot/pull/18531)) -- resolved for beta9 - [x] uLanding driver broken ([discussion](https://discuss.ardupilot.org/t/ainteins-us-d1-radar-not-working-with-arducopter-4-1-beta/75414), [PR](https://github.com/ArduPilot/ardupilot/pull/17660)) -- resolved for beta9 - [x] check Andy Piper's items in comments below (RunCam, etc) -- all but one issue seems resolved in -beta8. The one remaining issue seems to be a 4.0 issue as well so not technically a blocker. - [x] FrSky on KakuteF7 with R9 MX OTA Receiver ([discussion](https://discuss.ardupilot.org/t/frsky-f-port-telemetry-issue-on-kakute-f7-with-r9-mx-ota-receiver/70747), [issue](https://github.com/ArduPilot/ardupilot/issues/17332)) -- resolved with beta7 (or earlier). - [x] mRo Pixracer Pro gyro & accel health failures + GSF constrain nan internal error (ask Randy for logs) -- could not reproduce - [x] DJI MSP OSD requires turning off serial flow control on H7 ([issue](https://github.com/ArduPilot/ardupilot/issues/17814)) -- hardware issue - [x] SBusOut setup for Matek (and other) boards ([discussion](https://discuss.ardupilot.org/t/sbus-out-functionality-missing-brd-sbus-out-not-in-my-parameters/71148/3), [Wiki](https://ardupilot.org/copter/docs/common-sbus-out.html)) -- resolved through documentation on how to setup SBUS on any serial port - [x] SmartAudio setup with Crossfire TBS ([discussion](https://discuss.ardupilot.org/t/controlling-tbs-vtx-power-with-smart-audio/71687)) -- seems resolved. many questions and answers - [x] SegFault: `./Tools/autotest/autotest.py --gdb --debug build.Copter test.Copter.OpticalFlow --force-ahrs-type=2` ([PR](https://github.com/ArduPilot/ardupilot/pull/18456)) -- resolved for beta8 - [x] QGC doesn't allow changing params with 4.1.0 with blank params? ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/53)) -- QGC issue - [x] motor test causes main_loop_stk internal error ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta5-has-been-released-for-beta-testing/73110/30)) -- cannot replicate, might have been fixed with logging improvements in subsequent betas - [x] Internal error 0x1000000 (imu_reset) on PXFmini ([discussion](https://discuss.ardupilot.org/t/prearm-internal-errors-0x1000000-l-168-imu-reset/71658/19)) --we assume this is a hardware issue - [x] Matek fails on boot if ESC Telemetry used ([discussion](https://discuss.ardupilot.org/t/help-about-using-dshot-on-tail-rotor/73269/13)) -- follow-up request received no answer so closing - [x] OSD range finder panel not visible on omnibusf4pro even though rangefinder is present (reported by Henry) -- re-checked with Henry and seems resolved. - [x] I2C ports not working on CubeOrange if UAVCAN GPSs are used ([issue](https://github.com/ArduPilot/ardupilot/issues/17879)) -- was issue with tfluna lidar - [x] position controller safety improvements from Leonard -- resolved for beta8 - [x] Internal error in position controller on Matek H743 (https://github.com/ArduPilot/ardupilot/issues/17763. [PR](https://github.com/ArduPilot/ardupilot/pull/18416)) -- resolved for beta8 - [x] Sergey reports OSD on iFlight Beast7 does not show flight time ([discuss](https://discuss.ardupilot.org/t/copter-4-1-0-beta-released-for-beta-testing/70075/44), [youtube](https://www.youtube.com/watch?v=JYFzID5rUBk)) -- user resolved it. seems to be related to a low output throttle. - [x] bad heading after 10min ([discussion](https://discuss.ardupilot.org/t/mag-failure-copter-4-1-0-latest-is-that-a-bug/71963)) -- no response to request for logs. note: involves non-default AHRS_ORIENT. - [x] M8030 based GPSes do not work due to autobauding issue ([issue](https://github.com/ArduPilot/ardupilot/issues/18252), [PR](https://github.com/ArduPilot/ardupilot/pull/16007)) -- resolved for beta7 (we think) - [x] BAT_ARM_VOLT not working? ([discussion](https://discuss.ardupilot.org/t/orange-cube-won-t-arm/74868/8)) -- works fine - [x] circle mode does not respond to changes in CIRCLE_RADIUS parameter (reported by Arace, [PR](https://github.com/ArduPilot/ardupilot/pull/18434)) -- resolved for beta8 - [x] Internal Error after 68ms delay on Matek ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta7-has-been-released-for-beta-testing/74794/4), [issue1](https://github.com/ArduPilot/ardupilot/issues/18196), [issue2](https://github.com/ArduPilot/ardupilot/issues/18376)) -- resolved for beta8 - [x] Flywoo external compass support still broken? ([PR](https://github.com/ArduPilot/ardupilot/pull/18340)) -- merge for beta8 - [x] Helicopter Guided mode takeoff issue (PR: https://github.com/ArduPilot/ardupilot/pull/15826, PR: https://github.com/ArduPilot/ardupilot/pull/17043) -- resolved for beta8 - [x] MP's PX4flow "focus mode" seems broken ([discussion](https://discuss.ardupilot.org/t/px4-flow-sensor-image-no-calibration-in-mission-planner-or-q-ground-control-when-connected-via-micro-usbb/74878)) -- fixed in beta MP on 20-Aug-2021 - [x] tricopter crash after wp2 ([discussion](https://discuss.ardupilot.org/t/unexplained-crash-on-auto-mode-with-beta-6/74787/3)) -- we think this is a power issue. no indication of Watchdog reset and radio seems to lose power with autopilot - [x] Pixhawk4 LEDs are swapped ([issue](https://github.com/ArduPilot/ardupilot/issues/15739), [discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta6-released-for-beta-testing/74139/14), [PR](https://github.com/ArduPilot/ardupilot/pull/18235)) -- resolved for beta8 - [x] Very slow main loops based on RC out configuration (https://github.com/ArduPilot/ardupilot/issues/17891) -- resolved for beta6 (or earlier) - [x] request that Guided velocity control go beyond WPNAV_SPEED_UP/DN limits ([discussion](https://discuss.ardupilot.org/t/set-position-target-global-int-velocity-bound-by-wpnav-speed/73988/7)) -- resolved for beta7 - [x] GSF Yaw source can only be executed EK3_GSF_RST_MAX times ([discussion](https://discuss.ardupilot.org/t/loss-of-correction-after-switching-couple-times-between-yaw-compass-source-and-gsf-source/72687/18), [PR](https://github.com/ArduPilot/ardupilot/pull/18225)). This hopefully resolves these items too -- resolved for beta7 - [x] EKF3 Core x unhealthy if using GSF for yaw ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/67)) -- resolved for beta6 or beta7 (we think) - [x] GPS glitch and emergency yaw reset (GSF) ([discussion](https://discuss.ardupilot.org/t/testing-compass-less-copter-gsf-gps-glitch-yaw-aligned-using-gps/73338)) -- resolved for beta6 or beta7 (we think) - [x] issues switching between GSF and Compass yaw sources ([discussion](https://discuss.ardupilot.org/t/loss-of-correction-after-switching-couple-times-between-yaw-compass-source-and-gsf-source/72687), [discussion2](https://discuss.ardupilot.org/t/gps-yaw-and-gsf-in-different-sources/74011)) -- resolved for beta6 or beta7 (we think) - [x] Flywoo external compass support ([PR](https://github.com/ArduPilot/ardupilot/pull/18219)) -- resolved for beta7 - [x] vehicle may crash into terrain in Guided ([discussion](https://discuss.ardupilot.org/t/terrain-following-in-auto-may-hit-terrain/74365/2), [PR](https://github.com/ArduPilot/ardupilot/pull/18212)) -- resolved for beta7 - [x] support very fast auto missions ([discussion](https://discuss.ardupilot.org/t/high-speed-auto-mission/74217/10), [PR](https://github.com/ArduPilot/ardupilot/pull/18190)) -- resolved for -beta7 - [x] Position controller target velocity vibration ([issue](https://github.com/ArduPilot/ardupilot/issues/17702)) -- lthall thinks the vibration is not a significant issue. - [x] Guided with high rate position target updates don't work (see issue https://github.com/ArduPilot/ardupilot/issues/17795, [PR](https://github.com/ArduPilot/ardupilot/pull/17539)) -- resolved with -beta6 - [x] remove parameter reset internal error ([issue](https://github.com/ArduPilot/ardupilot/issues/17628)) -- Randy and Tridge decided to leave this in place. It happens so rarely that it is not annoying for users. - [x] copter reversing with spline waypoints switching from rel to terrain ([discussion](https://discuss.ardupilot.org/t/terrain-following-question/74224/2)) -- expected behaviour - [x] rapid POS oscilliation when using GPS-for-yaw ([discussion](https://discuss.ardupilot.org/t/ekf3-position-still-going-mad-in-beta5-drone-crashed/73859)) -- resolved in -beta6 - [x] Arming check does **not** trigger with EK3_SRC1_YAW = GPS (2) but GPS is not actively providing yaw ([discussion](https://discuss.ardupilot.org/t/gps-yaw-let-the-drone-arm-in-loiter-mode-when-rtk-is-not-fixed-but-it-was-fixed-before/74197/2), [PR](https://github.com/ArduPilot/ardupilot/pull/18154)) -- resolved for beta7 - [x] yaw rate timeout bug ([PR](https://github.com/ArduPilot/ardupilot/pull/18156)) -- resolved for beta7 - [x] QMC compass not detected on Goku autopilot ([discussion](https://discuss.ardupilot.org/t/external-compass-not-detected-on-flywoo-goku-f745-nano/73921)) -- not an officially supported autopilot (yet) - [x] do-set-speed broken in Auto? ([issue to add autotest to stop this from happening](https://github.com/ArduPilot/ardupilot/issues/18078)) -- not sure if it was really broken, certainly resolved for beta6 - [x] S-Curves OA PR: https://github.com/ArduPilot/ardupilot/pull/17003 -- resolved for beta6 - [x] Auto terrain following may hit terrain (or fly too high) if terrain is too steep ([issue](https://github.com/ArduPilot/ardupilot/issues/17952), [PR](https://github.com/ArduPilot/ardupilot/pull/18049)) -- resolved for beta6 - [x] XTrack reporting broken? ([PR](https://github.com/ArduPilot/ardupilot/pull/17631), [PR2](https://github.com/ArduPilot/ardupilot/pull/17734), [PR3](https://github.com/ArduPilot/ardupilot/pull/18076)) -- resolved for beta6 - [x] Heli tail rotor control check broken ([issue](https://github.com/ArduPilot/ardupilot/issues/17937), [PR](https://github.com/ArduPilot/ardupilot/pull/17981)) -- resolved for beta6 - [x] AP_Logger: stuck thread (write)" on a Matek-405 ([discussion](https://discuss.ardupilot.org/t/bi-directional-dshot-support/70210/59), [issue](https://github.com/ArduPilot/ardupilot/issues/17767)) -- probably fixed in -beta5 with logging improvements - [x] watchdog reset on Pixhawk1MB ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/75)) -- probably fixed in -beta5 with logging improvements - [x] logs not created on force arm ([PR](https://github.com/ArduPilot/ardupilot/pull/17912)) - [x] Copter: guided mode update to use PosControl tools ([PR](https://github.com/ArduPilot/ardupilot/pull/17539)) - [x] Copter: guided mode update (PR https://github.com/ArduPilot/ardupilot/pull/17539) - [x] Guided terrain following may hit terrain (or fly too high) if terrain is too steep -- resolved before beta6 - [x] Internal Error 1048576 in Guided mode if velocity control used after attitude control ([issue](https://github.com/ArduPilot/ardupilot/issues/17954)) -- resolved before beta6 - [x] build env on mac ([discussion](https://discuss.ardupilot.org/t/errors-setting-up-build-environment-on-mac/72882/4), [PR](https://github.com/ArduPilot/ardupilot/pull/17860)) -- resolved post beta5 (need to backport?) - [x] SITL Tri frame still broken ([discussion](https://discuss.ardupilot.org/t/sitl-fly-away-in-land-mode-with-tricopter/73001)). SITL issue https://github.com/ArduPilot/ardupilot/issues/17876 - [x] Terrain following in Auto bouncey (aka "Dolphin") and "ERR:Terrain" in logs ([discussion](https://discuss.ardupilot.org/t/dolphin-fly-big-altitude-oscillation-in-rangefinder-based-auto-mission/72008), [PR](https://github.com/ArduPilot/ardupilot/pull/17765), [PR](https://github.com/ArduPilot/ardupilot/pull/17852)) -- resolved for beta5 - [x] "loiter bucketing" when EKF origin is far from vehicle position ([issue](https://github.com/ArduPilot/ardupilot/issues/17793), [PR](https://github.com/ArduPilot/ardupilot/pull/17803)) -- resolved for beta5 - [x] MP still evaporating for XinChengGe and others ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/38)) -- fixed for beta5 (MP version 1.3.74.2 and higher OK) - [x] position jump during OptFlow->GPS source switch ([discussion](https://discuss.ardupilot.org/t/regarding-lane-switching-between-optical-flow-position-and-gps-position/72777), [discussion2](https://discuss.ardupilot.org/t/optical-flow-for-loiter-mode/72641/7), [PR](https://github.com/ArduPilot/ardupilot/pull/17850)) -- resolved for beta5 - [x] rocking loiter - loiter braking active, non-zero desired climb rate when sticks in mid position ([discussion](https://discuss.ardupilot.org/t/drone-rocking-back-and-forth-in-loiter-mode-before-taking-off/72630), [PR](https://github.com/ArduPilot/ardupilot/pull/17838)) -- resolved for beta5 - [x] Auto WP->RTL alt drop (reported by Tridge in copter channel, [PR](https://github.com/ArduPilot/ardupilot/pull/17826)) -- resolved for beta5 - [x] EKF position going bad on CubeOrange with GPS-for-yaw ([discussion](https://discuss.ardupilot.org/t/ekf3-position-going-mad-bug-in-4-1-0-beta3-or-defective-cube-orange/72369), [PR](https://github.com/ArduPilot/ardupilot/pull/17787)) -- resolved for beta5 - [x] FLTMODE_CH and RCx_OPTION conflict ([PR](https://github.com/ArduPilot/ardupilot/pull/17788)) -- resolved for beta5 - [x] EKF3 origin alts not consistent across cores ([issue](https://github.com/ArduPilot/ardupilot/issues/17789), [Plane issue1](https://github.com/ArduPilot/ardupilot/issues/16450), [Plane issue2](https://github.com/ArduPilot/ardupilot/issues/10812), [PR](https://github.com/ArduPilot/ardupilot/pull/17786)) -- resolved for beta5 - [x] Vibration failsafe is broken ([issue](https://github.com/ArduPilot/ardupilot/issues/17834) [PR](https://github.com/ArduPilot/ardupilot/pull/17837)) -- resolved for beta5 - [x] low LOIT_ACC_MAX leads to incorrect loiter speed ([issue](https://github.com/ArduPilot/ardupilot/issues/17747), [PR](https://github.com/ArduPilot/ardupilot/pull/17815)) -- resolved for beta5 - [x] 6DOF frame broken ([PR](https://github.com/ArduPilot/ardupilot/pull/17819)) -- resolved for beta5 - [x] AP_Motors: correct expo parameter description and internal limits ([PR](https://github.com/ArduPilot/ardupilot/pull/17540)) -- resolved for beta5 - [x] Sergbokh's low desired climb rate when switching from Stab->AltHold while falling ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/65)) -- seems OK. this is input shaping - [x] UAVCAN GPS can't get satellites on 4.0.7 but works on 4.1 ([discussion](https://discuss.ardupilot.org/t/gps-neo3-suddenly-stopped-working/72310), question only, can then be moved to resolved) -- hardware power issue - [x] brake accel not reset ([4.0.7 issue](https://github.com/ArduPilot/ardupilot/issues/17709), [PR](https://github.com/ArduPilot/ardupilot/pull/17717)) -- resolved for beta5 - [x] BLHeli current reporting incorrect ([issue](https://github.com/ArduPilot/ardupilot/issues/17656), [PR](https://github.com/ArduPilot/ardupilot/pull/17657)) -- resolved for beta5 - [x] SCurve internal error when origin and destination very close ([PR](https://github.com/ArduPilot/ardupilot/pull/17671)) -- resolved for beta5 - [x] SCurve issues ([discussion](https://discuss.ardupilot.org/t/copter-4-1-scurve-issues/69961)): - [x] internal error after arming from auto (AUTO_OPTIONS=3) (reported by Peter Barker) -- old, marking as resolved - [x] twitch when switching from SCurves to Loiter (reported by Giacomo Pinagli, awaiting log) -- old, marking as resolved - [x] at end of RTL, vehicle spends more time waiting above home (reported by Giacomo Pinagli) -- old, marking as resolved - [x] wild movement getting to the first waypoint (reported by Andy Piper in "copter" discord channel) -- old, marking as resolved - [x] TeraRange Evo 60m has large spikes, no readings under 80cm ([discussion](https://discuss.ardupilot.org/t/tera-ranger-evo-60m-driver-issue/71806), same issue with 4.0.7) -- IR sensor has low range outdoors, updated wiki - [x] EKF3: becomes unhealthy beyond 38km from origin (EKF2's limit is about 130km) https://github.com/ArduPilot/ardupilot/issues/16736 -- probably SITL only 'cuz real-flights at up to 120km done with EKF2 and EKF3 - [x] scheduler jump due to overflow ([issue](https://github.com/ArduPilot/ardupilot/issues/17642), [PR](https://github.com/ArduPilot/ardupilot/pull/17708)) -- resolved for beta4 - [x] MOT_PWM_MIN/MAX not being set to 1000/2000 when MOT_PWM_TYPE is set to a DShot type, but SERVO_BLH_* parameters not setup. Looks like a regression from 4.0 -- resolved for beta4 - [x] PreArm: Internal errors 0x1000000 l:168 imu_reset on Matek H743 ([discussion](https://discuss.ardupilot.org/t/prearm-internal-errors-0x1000000-l-168-imu-reset/71658)) -- we believe it is a hardware issue, reported to Matek. - [x] SITL tri broken. Appears to move yaw in wrong direction ([issue](https://github.com/ArduPilot/ardupilot/issues/17645)). Fix here #17695 -- resolved in beta4 - [x] DO_SET_MODE command segfaults in SITL ([discussion](https://discuss.ardupilot.org/t/segmentation-fault-with-mav-cmd-do-set-mode/72191)) -- intentional to find unsupported messages. - [x] "PreArm: DCM **Roll/Pitch** inconsistent by X deg" when actually **yaw** is inconsistent ([issue](https://github.com/ArduPilot/ardupilot/issues/17442), [PR](https://github.com/ArduPilot/ardupilot/pull/17630)) -- resolved in beta4 - [x] EKF3 is still using ExtNav even when source is switch to Baro (reported by David Astesas, Randy has log) -- cannot reproduce - [x] improve SITL yaw tuning ([discussion1](https://discuss.ardupilot.org/t/unstable-yaw-angles-in-octa-frames/71935), [discussion2](https://discuss.ardupilot.org/t/high-yaw-oscillations-when-descending-fast-in-sitl/71216), [PR](https://github.com/ArduPilot/ardupilot/pull/17634)) - [x] do-change-speed requires fractional speeds (?!) ([discussion](https://discuss.ardupilot.org/t/4-1-vehicle-speed/70752/4)) -- could not reproduce (think fixed as part of SCurves) - [x] EKF ground effect compensation not working with EKF3? ([discussion](https://discuss.ardupilot.org/t/gnd-effect-comp-not-working-as-good-as-in-copter-4-0/71421), [issue](https://github.com/ArduPilot/ardupilot/issues/17552), [PR](https://github.com/ArduPilot/ardupilot/pull/17575)) -- fix included in -beta4 - [x] Yaw imbalance warning too tight for Helicopters at least ([discussion](https://discuss.ardupilot.org/t/yaw-imbalance-how-to-troubleshoot/70259), PR: https://github.com/ArduPilot/ardupilot/pull/17574) -- fixed in beta4 - [x] Serial passthrough not working on serial ports configured to "GPS" with GPS protocol set to ublox (issue: https://github.com/ArduPilot/ardupilot/issues/17269) -- also happens with 4.0. workaround is to set the SERIAL_PROTOCOL = -1 or GPS_TYPE = 0. [updated docs](documentation.) - [x] SITL copter-optflow.parm file out-of-date ([issue](https://github.com/ArduPilot/ardupilot/issues/17400), [PR](https://github.com/ArduPilot/ardupilot/pull/17590)) -- developer issue but fixed for beta4 - [x] MP crashing after trying to load params using MAVFTP ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta3-has-been-release-for-beta-testing/71489/14)) -- fixed in beta MP before beta4 - [x] dma.txt file can't be downloaded the first time (PR https://github.com/ArduPilot/ardupilot/pull/17615 makes it return an emtpy file the firs time, MP's error message has been improved) -- included in beta4 - [x] Pix32v5 IMU heater not operations? reported by holybro ([PR](https://github.com/ArduPilot/ardupilot/pull/17605)) -- included in beta4 - [x] EKF terrain estimate incorrect? ([PR](https://github.com/ArduPilot/ardupilot/pull/17561)) -- probably not a problem but will go out with beta4 - [x] little motor cuts ([discussion](https://discuss.ardupilot.org/t/little-motor-cuts-in-gps-mode-beta-3/71759)) -- could not reproduce, no logs. - [x] EKF3 becomes unhealthy if source is switched to Optflow and then T265 (ok if switched to GPS). Reported by Randy -- user error in EK3_SRCx_YAW. - [x] do change speed not working ([discussion](https://discuss.ardupilot.org/t/4-1-vehicle-speed/70752/4)) -- known limitation of Scurves - [x] SITL crashes if optflow enabled but rangefinder disabled/unhealthy ([issue](https://github.com/ArduPilot/ardupilot/issues/17565), [PR](https://github.com/ArduPilot/ardupilot/pull/17577)) -- fixed in beta4 - [x] firmware version is not displayed in banner ([issue](https://github.com/ArduPilot/ardupilot/issues/17515), [PR](https://github.com/ArduPilot/ardupilot/pull/17549)) -- fixed in beta4 - [x] Holybro Pix32v5 is not automatically understood by MP during upload ([PR](https://github.com/ArduPilot/ardupilot/pull/17563)). -- fixed in beta4 - [x] HC-SR02 sonar not working? ([discussion](https://discuss.ardupilot.org/t/copter-4-1-0-beta-released-for-beta-testing/70075/62), [wiki](https://ardupilot.org/copter/docs/common-rangefinder-hcsr04.html)) -- PeterB could not reproduce - [x] Copter/QuadPlane: set yaw rate to zero during arming ([PR](https://github.com/ArduPilot/ardupilot/pull/17541)) -- included in beta4 - [x] No PSZ logging unless in mode with 3D control ([issue](https://github.com/ArduPilot/ardupilot/issues/17441), [PR](https://github.com/ArduPilot/ardupilot/pull/17548)) -- included in beta4 - [x] CUAV X7 rebooting and getting hot ([discussion](https://discuss.ardupilot.org/t/cuav-x7-safety-led-not-working-on-copter-4-1/71444)) -- USB power issues, not software. - [x] CUAV X7 safety LED not working ([discussion](https://discuss.ardupilot.org/t/cuav-x7-safety-led-not-working-on-copter-4-1/71444), [related issue?](https://github.com/ArduPilot/ardupilot/issues/17481)) -- somehow fixed in beta3 - [x] MP's link status is very low for Matek H743-slim (same as 4.0) ([discussion](https://discuss.ardupilot.org/t/terrible-link-quality-over-usb-mavlink-is-this-expected/71647)) -- problem went away when switched to Sik radio - [x] Visual Odometry "Calibration" (aka yaw alignment) via aux switch seems to have an issue which means that after the aux switch is moved, VISP.Yaw does not equal ATT.Yaw. ([PR](https://github.com/ArduPilot/ardupilot/pull/17551)) -- fixed in beta4 - [x] ACRO_RP_EXPO constraint incorrect ([PR](https://github.com/ArduPilot/ardupilot/pull/17486), [discussion](https://discuss.ardupilot.org/t/acro-rp-p-and-acro-rp-expo-range-check/71385)) -- included in beta4 - [x] Copter: position controller updates (PR https://github.com/ArduPilot/ardupilot/pull/17345) - [x] new bootloader fails on trad heli firmware at least on some boards ([issue](https://github.com/ArduPilot/ardupilot/issues/17487)) -- bootloader changes reverted in master and for beta2 - [x] yaw oscillations during high speed descent ([discussion](https://discuss.ardupilot.org/t/high-yaw-oscillations-when-descending-fast-in-sitl/71216)) -- SITL tuning issue - [x] EKF3 does not regain position estimate after loss of GPS (see PR https://github.com/ArduPilot/ardupilot/pull/17104) -- could not reproduce - [x] PSC_ACCZ_FLTx param defaults don't match recommendations from @lthall and @andyp1per? ([discussion](https://discuss.ardupilot.org/t/psc-accz-fltd-function/70528/27)) -- Leonard says it's fine as it is and it's his page - [x] EKF3: GPS-for-yaw timeout broken (issues: https://github.com/ArduPilot/ardupilot/issues/17314, PR https://github.com/ArduPilot/ardupilot/pull/17342) -- included in beta2 - [x] RC failsafes with KakuteF7 & CRSF & Yaapu telemetry during mode changes ([discussion](https://discuss.ardupilot.org/t/radio-failsafe-with-crsf-with-yaapu-telemetry-with-frsky-taranis-log-analysis-help-requested/70544), [discussion2](https://discuss.ardupilot.org/t/4-1-beta-autotune-failsafe/70698)) -- fixed with "latest" (should become beta2) - [x] KakuteF7, DShot150 motor failure when using 6s ([discussion](https://discuss.ardupilot.org/t/quad-tilted-to-the-left-and-hit-ground/70680)). User was on 4.0.7 - [x] PixRacer, luminousbee5, Radiolink Mini Pix LED/Buzzer issue ([discussion](https://discuss.ardupilot.org/t/radiolink-mini-pix-with-radiolink-buzzer-led-switch-k170725-problem/70587)). -- fixed in beta2 - [x] MatekF9 GPS almanac upload (AP_Periph) ([discussion](https://discuss.ardupilot.org/t/ublox-assistnow-with-gps-via-ap-periph/70631/2)). enhancement request added to issues list https://github.com/ArduPilot/ardupilot/issues/17305. - [x] Splines require terrain database (see issue https://github.com/ArduPilot/ardupilot/issues/17250, PR: https://github.com/ArduPilot/ardupilot/pull/17280. reported by Peter Barker) - [x] FPort not supported on VR Brain? ([discussion](https://discuss.ardupilot.org/t/ac-4-1-and-vr-ubrain/70330/6)) -- board has very few serial ports so user wanted an enhancement to all usign FPort on the regular RC input (I think). Not a bug but rather just a question. - [x] Flywoo board's onboard logging not working ([close issued](https://github.com/ArduPilot/ardupilot/issues/17245) - should have been raised on discuss) - [x] EK3_DRAG_BCOEF_Y param are reset to default on reboot (see issue https://github.com/ArduPilot/ardupilot/issues/17167, PR https://github.com/ArduPilot/ardupilot/pull/17228) - [x] Move DEV_OPTIONS bit "2" (thrust as thrust) to GUIDED_OPTIONS (issue https://github.com/ArduPilot/ardupilot/issues/17161, PR https://github.com/ArduPilot/ardupilot/pull/17185) - [x] Sebbb's "PreArm: Internal errors 0x800000 l:57 stack_ovrflw" when using SmartAudio on master (discord, general, PR: https://github.com/ArduPilot/ardupilot/pull/17226) - [x] S-curves PR: https://github.com/ArduPilot/ardupilot/pull/15896 - [x] Durandal Vcc fix - [x] COMPASS_USE=0, COMPASS_USE2=1 results in no compass being used (issue: https://github.com/ArduPilot/ardupilot/issues/16509, PR:https://github.com/ArduPilot/ardupilot/pull/17047) - [x] UAVCAN GPS ordering PR: https://github.com/ArduPilot/ardupilot/pull/16156 - [x] DMA Locking with Thread Priority Inheritance PR:https://github.com/ArduPilot/ardupilot/pull/15984 - [x] mRo Pixracer Pro Baro issue: https://github.com/ArduPilot/ardupilot/pull/16993, PR:https://github.com/ArduPilot/ardupilot/pull/17054 - [x] All boards building on autotest server (see below) SCurve resolved issues: - [x] apparent "climb away" in RTL after spline mission (reported by Peter Barker, Randy has logs). Caused by Rallypoints alt=90 - [x] waypoints in a straight line can cause the vehicle to not reach top speed (reported by Ryan Beall). Leonard says expected behaviour - [x] vehicle took-off in Guided but then descended (reported by @tridge). no problem. - [x] Auto mission Loiter-Turns broken (issue: https://github.com/ArduPilot/ardupilot/issues/17126, PR: https://github.com/ArduPilot/ardupilot/pull/17142)

Rover