Official ArduPlane repository

ArduPilot Mega Project News

The ArduPilot Mega (APM) community is centered around DIYDrones [ http://diydrones.com/ ], which is the best place to go for daily news, discussion and support. If you have specific comments on the manual you can comment on each manual page here, but general tech and usage questions should be posted on the DIY Drones discussion forums [ http://diydrones.com/forum ].

The below are selected milestones and announcements:

August 22, 2012: ArduPlane 2.60 released. Bug fixes (including one on the dataflash erasing) and performance improvments. Main new features in this release are: wind estimation; long term dead reckoning support; wheeled takeoff and landing support; optional new roll/pitch/yaw controllers. Details here [ http://diydrones.com/forum/topics/arduplane-2-60-released ].
July 25, 2012: ArduPlane 2.50 released. Improvement include improved DCM performance, waypoint logic and altitude control. Bug fixes include dataflash erasing, some missing MAVLink parameters and navigation roll control. Details here [ http://diydrones.com/forum/topics/arduplane-2-50-released ].
June 15, 2012: ArduPlane 2.40 released. Supports MAVLink 1.0, new 3DR Ublox GPS module, improved dataflash erase to ensure fast startup on first use, fixed an elevon reverse bug in the setup process. Details here [ http://diydrones.com/forum/topics/arduplane-2-40-beta?xg_source=activity ] and here [ http://diydrones.com/forum/topics/arduplane-2-40-released ].
May 13, 2012: ArduPlane 2.34 released. Fixes a bug that affected some APM 2 boards with a slightly rev of the MPU-6000 sensor. Adds support for MAVLink 1.0. Details here [ http://diydrones.com/forum/topics/arduplane-2-34-released ].
April 9, 2012: ArduPlane 2.33 released. Compass declination can now be set automatically. Includes MAVLink improvements optimized for new 3DR radios.
March 28, 2012: ArduPlane 2.32 released. Includes some compass and baro sensor improvements. Full description here [ http://diydrones.com/forum/topics/arduplane-2-32-released ].
March 17, 2012: ArduPlane 2.30 released. Much improved DCM and compass code for better stability and navigation performance. Many other bug fixes. Full description in the release post here [ http://diydrones.com/forum/topics/arduplane-2-30-released ].
Jan 16, 2012: ArduPlane 2.28 released. Improved compatibility with APM 2, including support for airspeed and battery-monitoring sensors. Some bug fixes on compass and datalogging.
Dec 20, 2011: ArduPlane 2.27 released. Adds geofencing function, improved datalogging and filesystem, faster MAVLink starts.
Nov 19, 2011: ArduPlane 2.26 released. Log files will now overwrite from the beginning of the memory when the dataflash is full (before, logging would halt when memory was full until you manually cleared the logs).
Nov 13, 2011: ArduPlane 2.25 released. Bug fixes, plus changes to mission structure so that conditional and immediate commands are located between associated waypoints instead of after the second waypoint.
Sept 8, 2011: ArduPlane 2.24 released. Mostly bug fixes, including fixes to avoid memory overruns and EEPROM corruption. Also includes a few new features, including improved MAVline comms, improves Crosstrack correction, code to avoid Xbee bricking, improved use of the temperature sensor in barometric sensor reading, etc.
August 25, 2011: ArduPlane 2.23 released. Includes differential aileron/flap functionality. Corrected AIRSPD2PTCH_IMAX Mavlink parameter to work in GCSs. Fixed condition_change_alt command to handle decents properly
August 15, 2011: APM 2.22 released. Many small improvements, including: MAVLink startup is now much faster and will work even if the hardware fails the calibration test. 5883 magnetometer bug fixed. Various (mostly minor) navigation bugs fixed. MAVLink comms improved.
July 3, 2011: APM 2.20 released. Now supports the new standard magnetometer using the HMC5883L chip [ http://store.diydrones.com/HMC5883L_Triple_Axis_Magnetometer_p/br-hmc5883-01.htm ], which is autodetected. Also fixes problem with airspeed sensor autodetection in some setups. For now, to enable your airspeed sensor via the Mission Planner Configuration screen. Change the AIRSPD_ENABLE value to 1 to enable, then click "Write PIDs" to save. You can check that it's enabled correctly with the CLI Test "airspeed".
June 9, 2011: Gorgeous new Mission Planner version (1.0) released, with a new Guided mode for real time "go here now" commands. Details here [ http://diydrones.com/profiles/blogs/introducing-a-new-apm-feature ].
May 2, 2011: APM 2.1 is released, which takes the 2.x project out of beta. Release details are here [ http://diydrones.com/profiles/blogs/apm-2-out-of-beta ]. The manual, Mission Planner and HK GCS have all been updated for APM 2.x.
March 11, 2011; First APM 2.x beta released. This is a major update, including MAVLink-based telemetry, mission planning and two-way communications. Details in the announcement post here [ http://diydrones.com/profiles/blog/show?id=705844%3ABlogPost%3A303363 ].