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paul riseborough
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paul riseborough's Groups

paul riseborough's Discussions

Batch of faulty 3DR Pitot/Static probes - check yours for leaks

Started this discussion. Last reply by Peter Wlodarczyk Jun 23, 2013. 1 Reply

Two out of three of the 3DR pitor/static probes I have purchased have had significant air leaks where the internal tube joins to the machined aluminium end. In the first instance this resulted in a…Continue

Repeated mid-air APM reboot - only happens at one flying site - possible weather radar interference

Started this discussion. Last reply by paul riseborough Apr 21, 2013. 13 Replies

I have three flying sites that I use depending on weather and availability. My primary flying site is located only 800 meters from a weather radar and I have been having repeated in-air reboots when…Continue

Please help - 3DR USB radio will upload firmware but won't enter command mode

Started this discussion. Last reply by Marcin Krawczyk May 31, 2013. 7 Replies

I have a 3DR 915 MHz v1.1 USB interface radio that will not enter command mode using the 3DR radio config tool and does not respond to any commands. The unit was communicating whenfirst received, but…Continue

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paul riseborough's Page

Latest Activity


Developer
paul riseborough commented on Arthur Benemann's blog post DroidPlanner 2 - Official Stable Release
"Arthur, I noticed when testing follow me, it is setting MNT_MODE to 4 so that the camera tilt (or pan if fitted) follows the point which is great. However, when follow me is disabled, MNT_MODE is not set back to the previous value, so that it can…"
Friday

Developer
paul riseborough replied to Drone-University.com's discussion Arduplane vs Pixhawk in the group ArduPlane User Group
"Pixhawk is just the hardware. You have the choice of running code from the PX4 project or code from the ArduPilot project on that board. ArduPilot on PixHawk now runs a full inertial nav that gives better flight accuracy. It also provides support…"
Aug 5

Developer
paul riseborough replied to Mapper905's discussion Plane always flies to right of waypoints in the group ArduPlane User Group
"In auto, the plane is flying sideslipped as it it needs bank at 5 degrees to fly straight and is generating a positive yacc value. This is also generating a rolling moment that is causing a couple of degrees offset between demanded and achieved bank…"
Jun 5

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Falling at 18m/s from 2800m whilst tumbling is not gentle."
Jun 5

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"EKF looks OK. It is however detecting significant inconsistencies between the magnetometer and inertial data in the X and Z axes when the copter rotates in pitch. This indicates a problem with either the offsets or possibly the alignment of the…"
Jun 2

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Those small differences in flight on switch-over are to be expected. Unfortunately there is no pre-arming logging available, but there is nothing in your logs to indicate you have a problem with the EKF after arming, although both DCM and EKF are…"
Jun 1

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"it was running ArduCopter V3.1.5 (3c57e771)"
Jun 1

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Something I forgot to mention is that the EKF does reinitialise the heading and magnetic field estimates on arming in case the start-up estimate was corrupted (eg being powered up inside a metal vehicle or on a steel bench). EKF is running in the…"
Jun 1

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"EKF initialises to the DCM roll and pitch angles and uses the declination and magnetometer readings to set the yaw angle, so there should be no warm-up period required. Are you able to post you .BIN file? Thanks"
Jun 1

Developer
paul riseborough replied to Randy's discussion ArduCopter-3.2 beta testing
"Are you able to post your .BIN file ?"
Jun 1

Developer
paul riseborough replied to Carl Davis's discussion Is this a stall spin? in the group ArduPlane User Group
"Carl, A few observations: 1) Your roll PIDS need tuning - see the lose roll differences between demanded and achieved roll angle prior to the divergence 2) Its not a stall spin for the following reasons - the bank angle is between 60 and 70…"
May 29

Developer
paul riseborough commented on Chris Anderson's blog post New APM-powered Phantom clone at HobbyKing
"It looks like HobbyKing are giving lip service to open source but not actually providing design files. The file they provide is a PCB layout, but I can't see where it shows what the components actually are (eg C3). You couldn't build from…"
May 29

Developer
paul riseborough replied to Mapper905's discussion Plane always flies to right of waypoints in the group ArduPlane User Group
"Make sure it flies properly in FBWA before testing AUTO and post your log."
May 27

Developer
paul riseborough replied to Carl Davis's discussion Beginner with autotune problems in the group ArduPlane User Group
"Carl, It needs to be able to fly in FBW-A before you can do auto-tune. Auto-tune effectively uses FBW-A mode.  You could have the board orientation parameter set incorrectly - the log shows the pitch diverging upwards when elevator diverges…"
May 23

Developer
paul riseborough replied to Carl Davis's discussion Beginner with autotune problems in the group ArduPlane User Group
"Have you checked that on the ground when in FBWA or stabilise, that the elevator goes the right way? http://plane.ardupilot.com/wiki/arduplane-setup/first-time-apm-setup/reversing-servos-and-setting-normalelevon-mode/"
May 23

Developer
paul riseborough replied to Miguel Garcia Almeida's discussion PixHawk 3.1.4 - Help me analyse this crash - X8 craft
"Looking at your log I reckon you had a brownout. 1) Your Vcc log (board voltage) shows sudden dips associated with throttle increases. You should not be seeing variations in board voltage due to throttle movements. 2) You battery voltage also shows…"
May 22

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