ArduCopter 2.7.1 will become available on Mission Planner and in the downloads area shortly. This release contains a few important bug fixes as well as the first implementation of the MPU6000 sensor-fusion code.
Detailed changes are in the commit log. Here's a summary:
New:
- Preliminary support for MPU6000 on board sensor-fusion (DMP)
- AP_Limits: Experimental "bounce" mode, for smaller spaces (LIM_RECMODE)
Bugs:
- Bug fix for yaw error buildup on takeoff
- Fix in Auto mode for failsafe handling
- Fixes to 3-axis camera gimbal code
Tags:
Permalink Reply by Eddie Weeks on August 14, 2012 at 6:59pm
Video from my house, on a short mission... 1:20 long
Eddie
There was somebody out here who was having their quad roll-over after about 5~6 minutes of flight...I can't find that post but in case the person who wrote that sees this...I was having a similar issue but I've found that it was caused by a voltage cut-off setting in one of my ESCs being set to medium when it should be low.
Permalink Reply by Johnny Yu on August 14, 2012 at 2:47am Actually, you should set Battery Type to NI-xx (even you are running on Lipo), which will disable voltage cut off completely.
Permalink Reply by dudz on August 14, 2012 at 2:01pm Ah Ha !! ... I know for a fact my ESC's are set to medium. They stop the quad flying when the batt voltage gets to 10.6V . Sometimes it rolls over on landing. I will do this right now ! Thankyou !!
Does this mean I will get longer flight times after I set it to low ? I'm getting 14mins without FPV kit mounted with a 3 cell 8000mah lipo

MMmmm... for me Randy is always better set the esc to "ni-mh" battery and use a timer during flight, or acoustic/visual lipo monitor ... :-)
Permalink Reply by Christiaan van Vollenstee on August 17, 2012 at 4:50am Hello, I have the standard 20 Amp ESC from the 3DR web sitewith the 850kv motors on the 3DR frame. I do not have nice hardware like you how can I check if one of my ESC's is this case. Version 2.6 worked perfectly for me and the next day I loaded 2.7 and life was not wonderfull for my quad as it was before.
Any help will be apretiated
Regards
Permalink Reply by Darren Stan Oakley on August 14, 2012 at 4:29am
Permalink Reply by Graham Miller on August 15, 2012 at 2:29am Hi guys sorry not been posting much lately just been so busy.. anyway I still have mt trusty APM 1 and moved onto the APM 2 but after just bench testing for a month I decided to add this to a frame FM450 but it would not power up at the out rail
this has now been resolved and I now have my APM2 up and running (thanks to everyone involved) So here are a few pic's
As you can see I have mounted the a plate to the frame with anti vibration foam and then mounted the protective box on to that plate with anti vibration foam. I have also fixed the new 3DR GPS to the top with the same foam.
Loaded the new 2.7.1 and with out touching anything it is rock solid :-) a wee bit of fine tuning and it will be there. I hope to do some testing later today and report back and maybe a video if I have time.
I'm using a frame like this for my test quad. With MP32 (Arducopter32 arm), 10x4.7 props, turnigy 1050kv motors and a 3s 6000mah nanotech battery, I'm getting 25 minutes of flight time plus 1/2 minutes for landing :) seems to me a very good time. And I'm not talking of 25m hovering, but really pushing it a bit.

That's very good flight time, around 12-13A average current, I get 15 minutes from a 5000 3S using 15A returning 4000mAh (80%) to the pack using 11x4.7 props, less if I use 10x4.7's.
Permalink Reply by Darren Stan Oakley on August 15, 2012 at 8:23am
Season Two of the Trust Time Trial (T3) Contest has now begun. The fourth round is an accuracy round for multicopters, which requires contestants to fly a cube. The deadline is April 14th.24 members
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