From the number of viewers I see that many peoples are interested in EKF topic, so I try to describe the algorithm as I understand. Although this decription still lacks the information of measurement and process noise, and of covariance's initializat
Read more…I've posted http://diydrones.ning.com/forum/topics/apm-2-5-and-arduplane-2-65-description on the forum under Arduplane 2.x topic because I didn't know about this group. Now I think it may be appropriate and useful to have the post here in the group.
Read more…On Thursday with the help of my friends field test was done to see if the bug of adding a dummy waypoint to the end of the flight plan is fixed. We started with modified Arduplane 2.65 with the flight plan
QGC WPL 110
0 1 0 16 0 0 0 0 21.062670 105.797
I've just received new APM 2.5. When testing its log data seem problematic: altitude mix and altitude GPS are of very high value, about 170 m although I tested on the ground. Then I tried to install a new Mission Planner, version 1.2.22, but the PC c
Read more…In July I posted "APM 1.0 and Arduplane 2.26 code description". Then on friday I updated to "APM 2.5 and Arduplane 2.65 description" and put under the old title But then I think this title may be misleading so it would be better to put under a new ti
By mistake I posted this on aerial photography
Recently I've used a flight plan with the last command DO_JUMP as below
0 1 0 16 0 0 0 0 21.062668 105.797707 2.000000 1
1 0 3 16 0.000000 0.000000 0.000000 0.000000 21.063231 105.797684 30.000000 1
2 0 3
Recently I've used MP to add a DO_JUMP command toward the end of the waypoint list. But it had no effect at all, when reaching the last waypoint, the plane flew home. At close look, I see that MP sets DO_JUMP command parameters as P1 = WP#, P2 = rep
Read more…As I can see on the forum that many people like to understand the code of Arduplane like me. But there's no appropriate documentation on the web because it's hard to understand the software without undrstanding the hardware, so I decide to find out m
Read more…Coding error, can anyone confirm?
I tried to understand Arduplane's code. In calc_nav_roll (Attitude.pde) there's a command:
nav_roll = g.pidNavRoll.get_pid(bearing_error, dTnav, nav_gain_scaler);I understand that dTnav is the time interval between cal
Read more…So far I can't find the APM block diagram, so I decided to make one myself to better understand APM firmware. Hope this would help others too
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