I've just released ArduPlane 2.62

The main reason for this release so soon after 2.61 is to fix elevon mixing. That was broken completely in 2.61. My apologies to everyone with an elevon plane!

Other changes in this release:

  • new IMU timing code from Randy. This improves the accuracy of the timing in the DCM code, which should give a small improvement in attitude estimation
  • fixed fetching of relative altitude when you save a mission from the APM to a file using the mission planner
  • added support for MAV_CMD_PREFLIGHT_REBOOT_SHUTDOWN. This makes it possible to reboot an APM2 remotely from a ground station
  • added speed scaling for wheeled takeoff. This prevents the rudder from over-correcting in the later parts of a takeoff
  • fixed setting a specific GPS protocol for an APM1-1280. This allows you to select any of the GPS drivers in a APM1-1280.
  • fixed navigation roll in an automated landing, to prevent wings hitting the runway during the last stage of a landing
  • fixed LAND_PITCH_CD to only apply to the final part of a landing
  • fixed noisy PWM output on startup on an APM2. This should help with some cheaper ESCs not booting correctly on startup
  • fix for NMEA parsing from Alexey Kozin (thanks Alexey!)
  • added a AHRS_BARO_USE parameter. This allows you to disable the use of the barometer for vertical acceleration correction. Combined with ALT_MIX, this makes it possible to completely disable the use of the barometer (in case your barometer is very badly shielded from air flow)

Happy flying!

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I'm having the same problem with Arduplane 2.62.  I uploaded this morning and my HUD display does not react to movement around XYZ axises as I am moving it.

Those that are having a problem with slow/no HUD movement: do you have your GPS connected? I can confirm a bug that slows the display if the GPS is not connected (obviously this is only an issue on the bench, not in the real world, where you'd always have GPS)

Do you guys have the GPS plugged in? I can replicate a bug if no GPS is connected. 

Chris - That did it! What a bug.I knew that it had to be something simple. thanks. Great to be back in business. Now to some flying.

I'm having problems with my ulbox lea-6h.  The APM 2.5 board goes dark, when I hook up the GPS to it via the old GPS connection.  I have not been able to figure that out.  My immediate work around was to compile 2.60 and upload it to the 2.5 board.  The board is responding correctly to movements now.

John: check for a bent pin in the connector on the board--it sounds like it's causing a short. I'm not seeing any issues with my board and that GPS.

Chris, it's not the board it's on the GPS.  None of the pins on either end are bent.   I don't have the connections/cables to test what's wrong with it, yet.  I'm ordering them now.

Just from the field.

Want to perform takeoff during auto mission with no success. The plane tends to pitch but with no throttle applied. The last time I was trying auto takeoff on 2.59 release and all was flawless. Also there is no airpeed sensor connected and the code is 2.62..

Hi, I had the same problem: elevator up but no throttle on auto mode with takeoff command. My solution was to enter coordinates for the takeoff command. Takeoff command didn't use to require coordinates. But at some point, something must have changed.

I just tested the new code in stabalize mode and seems to work just fine for my elevons. Thanks for the update. I'll be testing it soon in the field.

Cheers

Dries

When you are in stabilize and the plane is good leveled, how is your right elevon ( the right wing when the end of the plane is front of you )?

Mine is a little bit too high. Not like in manual.

Both elevons are exactly the same in manual and stabalize mode when holding level. You may want to redo your radio calibration?

Today I tested the do_jump command and am glad to say it is working again! Thanks Andrew!

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