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About the MAVLink navigation commands implementation and navigation accuracy

@Vincent_Wen wrote: Hi, all. I am in a project group and we have a quadcopter with pixhawk 2.1 and a companion computer connected to it as augmentation. I noticed that during sitl simulation(v3.3) and...

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Building an Android app to control an APM 2.x

@Prem_Karnan wrote: Hi all, Is there any feasible way to actually build an android app to properly control a drone with an APM 2.8? I understand that there will be a lot of latency when using Wi-Fi...

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How to disable STAT Parameters?

@R_Q_Robert wrote: Hi All I am using Copter 3.5.5 MP 1.3.56 I want to disable STAT Parameters. Is it possible if i set STAT_RESET to -1 Would this disable STAT parameters … Kindly Help !!! Posts: 2...

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Use Loiter functionality in Guided mode

@JustFineD wrote: Hi, Can the following code from Loiter mode can be also used in Guided Mode? Braking the copter when rc sticks are at zero AC_Loiter :: calc_desired_velocity ()) … if...

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Calibrate Amperes (Amperes per Volt) in Battery monitor settings without Amp...

@chris661 wrote: Basic, only for dummies… I do not garantee this is the safest and accuratest way, but sometimes, with small light drones, like my test drone, it’s difficult to use the Ampmeter tool,...

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Inverted Flight

@ChrisOlson wrote: For Copter 3.6 an inverted flight function was introduced for heli. This was originally put in the code for the collective pitch quadcopter frame, which actually is not a...

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Terra Ranger Evo Rangefinder I2C Issues

@James_Megariotis wrote: Hi Everyone, I am having a problem with the Terra Ranger Evo 60m model. I am able to hook it up and receive valid measurements from this sensor, but it seems to interfere with...

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Problem with one ESC/motor?

@elgarbe wrote: I’m starting to tune my UAV runing pixhawk and arducopter. But, I notice that one ESC/motor don’t work like others. It does not start when arming like other 3. Here a shor video:...

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Fail to calibrate Chinese compass

@mkeyno wrote: I’ve been trying to install Chinese compass QMC5883L to my APM with Arducopter 3.2 firmware , I ran compos test sketch in the library and notice it didn’t initialize. After tracking the...

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Terrain data is not loaded

@aamadeuss wrote: Hey, i try to use the terrain waypoint feature in arducopter. terrain_enable 1 terrain_follow 1 (even if its not needed i think) gps fix mission planner connected and has internet...

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Quad Crash on automission

@ardisd wrote: Crashed my Quad while doing an automission on a nice calm evening. Something started going wrong from the very start as i noticed the Quad was not pointing i the direction of flight it...

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SERIAL 5 pinout on Pixhawk 2.1

@Chernabog wrote: Hi All, From what I have read it would seem that since 3.5.4 we can now connect serial devices to the SERIAL 5 port, which would seem to be the 3 pin console header (labelled CONS)...

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Error building Ardupilot on windows with make

@njwang wrote: Hi, I’m following instructions here http://ardupilot.org/dev/docs/building-px4-with-make.html#building-px4-with-make to build the ardupilot code. After I entering the “make px4-v2” it...

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Update Copter-3.6 master default parameters for the SV

@lordneeko wrote: Can someone point me where in the repo I can start mapping the customized parameters that they programmed into the SV so that I can make the SV build in master produce a build with...

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EKF primary changed in flight

@funth1ngs wrote: Hi! I’m flying with a Pixracer and get “EKF primary changed” errors in flight. It seems they come along with barometer spikes: Is this some hardware problem? Here is the log file:...

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Apm stay in same firmware after update

@111120 wrote: Hi, For some reason I decided to check my apm version. after I checked using the cli I discovered that the firmware has never update. I update the firmware many times but with no...

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Tuning advice for Quad X with 18" props

@vosair wrote: Hey friends! I’m looking for any tuning advice. I’m familiar with tuning, but it’s mostly been on smaller rigs so far. I’m looking for maximum efficiency and smoothness. Build somewhat...

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Lightware LW20 - How to get last return?

@Chernabog wrote: Hi All, I have a new LW20 installed on my agricultural survey rig and it had its first flight test today. It is working very nicely, following terrain over some particularily slopey...

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Hover Point at 75 % collective with symmetrical head setup

@Felix wrote: Hi! I’m currently doing my head setup with a symmetrical pitch range of ±12 deg. I know it’s not really necessary to have -12 deg with a helicopter used with Pixhawk in a UAV operation....

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Collective jerk when disarming after land

@carlosanlley wrote: The problem: During bench test I notice that after the arducopter thinks it has landed and proceed with disarming the motor, the collective servo does a jerk from full negative to...

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