DEV call 22 Aug 2016 4pm PST = 22 Aug 2016 2300 UTC
Craig Elder
- Copter-3.4-beta updates
- DO_LAND_START for copter,
- AFS for copter
- SYSID_ENFORCE,
- Communications Skype, Gitter, Drones Discuss, Discourse
Craig Elder
Linux / Lucas:
Discussion re RTPS - and pull request 4700 ( new publish/subscribe subsystem ) - will be excellent for ROS integration once ROS moves to RTPS in “ROS2”. ( hopefully better than mavros ) . may not work on stm32’s, but will be excellent for linux based boards. This is NOT RTSP (video).
Copter / Randy:
3.4rc2 testing - new issues
- uncontrolled climb into sky occurred followed by uncontrolled descent ( crash ) related to MOT learning of THR MID - http://discuss.ardupilot.org/t/quadcpter-crash-today-climb-up-loiter-till-battery-run-out/10846/8
- Parachute release not working 100% as logic is a bit broken due to not being properly integrated with crash detector - randy says he will improve this - http://discuss.ardupilot.org/t/parachute-not-working/10865/3
Oneshot esc calibration is still an issue.
He has updated a bunch of the wiki, and rc2 is generally going OK.
Next rc planned to go out this week.
SF40c lidar driver testing and AC_Avoid - in theory it will stop the vehicle from flying into stuff. It still relies on gps, and it doesn’t prevent a user walking toward the copter, but it’s a good start. See PR https://github.com/ArduPilot/ardupilot/pull/4712
Tridge:
Discussion of Terrain following in TradHeli in SITL and got a flyaway. It was the virtual lidar/rangefinder configuration, and at 60m, the rangefinder still read 50, so it climbed forever. Will be adding a new param WP_RFND_USE as a result of learnings. https://github.com/ArduPilot/ardupilot/commit/c87fa13e777a98f78965d4afbffcb355eaf6875a
Long and boring discussion of the various ways different lidars/sonars/etc handle and give failure ( fail-long, fail-short, fail-detection, analog variability, 95percentile, etc )
Randy / Vision:
Object avoidance
ZED Camera with TX1 giving some issues, so putting this down.
DWM1000 indoor positioning/swarming is in progress. Also see posyx
Tridge / Copter:
PRs for DO_LAND_START and advanced failsafe (AFS) - OBC, Terminate, WP-based, can jump to a particular part of the mission on failsafe ( instead of rtl ),
SYSID_ENFORCE and Mesh ( etc ) … one serial port for multiple vehicles and multiple GCSs can be a risk of the wrong packet going to the wrong drone. ( ie ignore all packets that don’t come from the correct GCS with SYSID_MYGCS)
Philip / PH2:
Alpha testing ongoing. There is a bug in ppm input for particular receivers ( especially ppm-sum modules )
Has been fixed in hardware for production hardware. … alpha people, please use short cables ( under 10cm ) on PPM!
Aluminium housing is on the facebook page.
Production PCBs have been revised. ( for the carrier board , not the cube)