so, at the very beginning of any flight with my 3DR quad, roll/pitch both work as expected. After about 30 seconds of flight, if I push the roll stick the quad behaves as if I am pushing the stick diagonally i.e. if I roll right, the right arm close
Read more…I've been in the embedded software business for a decade or so, but typically I've used the Keil IDE on Arm and Infineon C166 hardware, with mainly straight C and some C++ code. I'm totally unfamiliar with Arduino hardware and software builds, and un
Read more…Hello, i received my APM 2.5 kit few days ago.
i connected all, and all is working fine on screen, but motors doesnt move
I tried with "motors test" in CLI (Terminal) and in ESC calibration; motors doesnt move.
TX and RX radio work fine and i can see th
Read more…Hi,
I flew manually in stabilise and collected this log, drawing PITCH vs PITCH IN (and THrottle):
Is it normal that the two curves picth and pitch IN look so different ? Or do I have something wrong ?
Randy , what do u think of such a graph ?
Read more…
Hi!
I pretend to use the arducopter in a work for college.
I want to implement the control algorithm, but i don't want to implement the Kalman Filter.
Do someone know where is the Kalman Filter implemented, so I could just use inertial estimation in my
Read more…So I have 2.9.1 on an APM2.5+ and have been doing some bench testing without props.
A striking anomaly occurs at low rpm/throttle, it may also happen at high rpm but isn't as clear.
If I put the stick up just enough to start all the motors spinning. Mo
Read more…Hello all.
Since I've bought this awesome machine RTF from udrones in december and that arm has always given this "nuisance" of beeping for a while untill it stops and gets ready to fly normaly.
Since I started flying with it I had a few crashes and ch
Read more…Hi, I need to find the ArduPilot's serial communication protocol but I can't find it anywhere. Does anyone know where the communication interface is defined?
Read more…Hello everyone. I'm new to this forum and new to the APM 2.5. I need a little help please.
First off, here is what I'm flying:
Frame: QAV500
FC: APM 2.5 w/software v2.9.1
GPS: UBlox LEA 6
Motors: Turnigy 2217/16
Props: APC 10x4.6 SF
Lipos: Zippy 3S, 5000MaH
Read more…I know this is probably an easy electronics problem, but I'm looking for some direction.I plugged in my Arducopter hexa to a battery for the first time and got beeps and lights, but I also got smoke. The black wire leading from the PDB to the No. 5 a
Read more…dear friends,
i am new and working as lecturer in one of technical university in malaysia. recently i was asked by the university to advice the student who registered as participants in uav competition. they will be given one 3dr radio 433mhz air an
Read more…Hello all,
I have built a quadrocopter with a custom frame and I have been testing it over the past month and I have an issue with the altitude I am hoping someone can help with.
The main problem is getting the copter to fly at a fairly low altitude of
Read more…Hello,
I've "build" my own version of a hexacopter - and I just can't get it to fly stable with the APM. I am close to rip my hair off.
The hexa is nothing fancy. "Regular" 800-type electric motors, 3-blade props (9x5), diameter from center of one moto
Read more…Hello!
I'm just a bit new to Quads,having flown a handful of times since late last year.
I just got an APM 2.5+ w/ uBlox GPS,and was looking at a video review that stated
that the angle for pitch & roll can be set. In other words, I don't want to give t
Read more…I have a TREX450 with a Spectrum DX7 transmitter and Spectrum AR7000 receiver.
Servo's are digital are Robbe FS61BB, and Align GP780 gyro.As a traditional heli without APM it flies fine with smooth servo movements and stable tail.
The APM have been se
Read more…I purchased this kit with the larger motor/prop sizes. Does anyone know what the payload is?
The goal is to attach telemetry as well as my canon 60D and video tx. Will I need arm adjustments and motor upgrades to achieve this?
Thanks!
Read more…I've been flying a copter with a mix of new and old batteries and I've seen this several times. It looks like the copter loses partial power to one or more motors, almost immediately after takeoff. I'm wondering if the batteries have been improperl
Read more…Hi!
I've just recived my AMP 2.5 and now I have one important question. How can I connect mi LiPo battery to it? That's an important part of the project. We're not going to use an RC controller, so the tutorials I saw doesn't work with what I want to
Read more…Hey all,
I wanted to poll the community to see what people were using for FPV gear on their copters and get some comments on what works and what doesn't.
From what I have heard, Fat Shark seems to be the way to go. Browsing their website (with the bro
Read more…As an engineer and software developer I feel confident we could write software that auto tunes the PIDs in the air or possibly on a fixed jig that holds it in place. Has anyone done any work on this?
Read more…