Questions tagged [quadcopters]
A multirotor that uses four non-coaxial motors/propellers to fly.
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Why new/recommended MEMS IMU for AHRS for drones are 6-DOF instead of 9-DOF?
I'm developing an quadcopter as an DIY project.
I'm in nascent stage of development.
I've just finalized the design/working philosophy.
I'm planning to fuse data from 9-DOF (9-Axes) IMU + GNSS + ...
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Why is my drone oscillating on position hold after I move it a few meters?
I have built a 5 inch quadcopter using inav 5, mateksys f722, and M8q-5883 gps. When I enable position hold with gps, the drone is relatively stable, but when I move it a few meters forward, it will ...
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How to connect my propellers to my drive shaft? and collet gripping force?
Okay so just to explain my problem. I have a central shaft that has two belt drives connected to it. Each belt goes to a propeller on either side of the drone. I need to connect the shaft that is ...
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Is my FC for regular rc planes or for drones with multiple props?
recently I decided to build a drone. While I'm learning everything I picked a FC. While researching about the FC I'm not sure if I picked the right one.
https://www.alibaba.com/product-detail/2023-New-...
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LiPo battery voltage keeps dropping when connected to PDB
I have an F450 quadcopter frame with the integrated Power Distribution Board. In order to use this feature, I soldered the battery (XT60) and the four ESC (Dean-T) connectors. I tested the continuity ...
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FPV system with camera synchronized to IMU
I'm looking for a drone who has an IMU synchronized to a camera. Global shutter would be nice but I would even tolerate rolling shutter if it's time stamps lock to the IMU. Does a hobby priced ...
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Effective Area estimation for drag calculation in coaxial quadrotor
I have a coaxial quadrotor with a propellor size of 34 inches & i want to calculate effective rotor area for drag calculation.what will be the area whether it is summation of both upper & ...
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Parrot AR Drone 2.0 full battery shows as empty
A friend of mine gave me a Parrot AR Drone 2 that had been lying unused for a number of years. It was in working condition when he last used it. I had also flown it then.
When I got the drone, the ...
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Location of Flight Controller in drone (PX4 specific)
I have a question for experienced users of PX4. Can the flight controller be placed anywhere in the drone, as long as it is pointing in the right direction and the calibration is made in the correct ...
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Do mounting motors at different height each other has any impact on performances?
Multirotor motors are typically mounted on same height.
I'm wondering what should I expect if they are mounted at different eights each other.
Model will work exactly in the same way as if they are on ...
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How to calculate the motor size needed from load requirements?
In quadcopter model creation is needed to choose components in order to have enough thrust ratio to grant the hovering plus some extra for movement performances, taking in account other constraints as ...
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Raspberry Pi 4 between flight controller and receiver
I have TBS Crossfire Micro TX, Nano RX and Raspberry Pi 4, I haven't bought a flight controller yet because I have a problem:
Until the drone receives a special command from the transmitter - I ...
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1
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quadcopter specification
https://www.droneassemble.com/product/quadcopter-drone-90-minutes-endurance/ This quadcopter offers a 90-minute flight time on a 14S-14000mah Li-ion battery. The propellers being used have a 22-inch x ...
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Is this quadcopter specification realistic in terms of endurance?
According to the specifications, this quad-copter offers a 90-minute flight time on a 14S-14000mah Li-ion battery.
The propellers being used have a 22-inch diameter and have 8-inch blades and the ...
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Custom flight mode in pixhawk flight controller
I am trying to convert a pixhawk drone into a quadrotor biplane tailsitter. Is there a way to create a transition flight mode where a motor pair will lower its RPM for a while until the drone's axis ...
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How to add custom betaflight code to obtain data from I2C device and pass to OSD?
I successfully obtained data from my I2C device in Arduino:
...
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Pro and cons of each quadcopter type of rotor arrangement
To design a quadcopter there are 4 main types you can decide to implement
What are the advantages and disadvantages of each of these types?
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How to maximize range with 2212 1400Kv motor and 30A ESC?
Premise, I'm not interested in speed or any type of sporty flight attitude, but only on range maximization I have
30A ESC,
2212 1400Kv motors 180W max with maximum efficiency current in the range ...
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How do those cheap drone camera apps work?
I have a cheap drone, and I was wondering how the inner software works. Mine works like any other cheap drone camera/ufo apps work (Connecting to the drone's wifi and you launch the app when you do ...
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Control algorithms for drones
I am hobbyist trying to understand control architecture of quadcopter.Cascaded control helps rejecting any disturbances, giving a fast response. But then why are using a square root controller instead ...
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Correct Flight Controller mixer settings for quadcopter with non-centred Centre of Gravity
I have a HobbyKing KK2.0 Flight Controller (FC) on a quadcopter. I have been trying to work out the correct mixer settings for a new H configuration I'm trying however the documentation isn't that ...
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(Beginner) I have a Radiolink Mini OSD with a not so clear schematic. How do I know if it can handle the input voltage needed to power my VTX?
My VTX and FPV camera can both handle my battery voltage (6V-36V input for the VTX and 4V-25V input for the camera). My mini OSD, unfortunately, only has an input voltage of 4v-6v and an operating ...
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What should I do if the radio and micro receiver don't run on the same protocol?
I recently got started on FPV and I got a cheap Tyro 69 toothpick and a Flysky fs-i6 radio, but the micro receiver won't bind to the radio, should I get another micro receiver that run on ibus, or buy ...
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How shall I get smooth servo output from pixhawk?
I am getting improper servor output. A slight increase in throttle suddenly increases servo output of the pixhawk.
This is the link to my servo output
As this can be seen I get sudden jump from 1000 ...
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Which setup for tilting rotor quadcopter?
I'd like to build a quadcopter with rotors that can tilt to increase the drone's flexibility. So far, I have only used a KK 2.1 board as a flight controller which doesn't really have this capability ...
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Help getting this flight controller to work with this receiever
I am working on building a drone. I have the DJI NAZA M LITE flight controller, and this receiver. The pinout for the battery and ESCS is pretty clear, but I'm not sure how I should go about ...
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Drone Suggestion Model - Linux Based
I need to buy a drone like the 3DR Solo that can allow me to program it and work with different features. I mean, I would like to have a drone where I can access towards SSH, I can deploy C scripts (i....
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Can I use a MJX bugs 5w battery and/or charger for the MJX Bugs 5w 4k (upgraded version)?
I am wondering if I can use the MJX bugs 5w battery for its upgraded version (MJX bugs 5w 4k) as it seems they both are the same dimensions, so it can slide into the drone. Also, I am wondering if I ...
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Connecting 2 Pixhawks to 1 Raspberry Pi
I want to connect my Raspberry pi 4 to two Pixhawks such that when I'm using one other will be in sleep mode.
One way of doing it is by assigning address to an individual and then switching. But I'm ...
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Do I need anything else for this drone build?
So far, I have these parts as all I need for a drone build. Is there anything else that I need or should have?
Flight controller: DJI Naza-M Lite
TX/RX: FS-i6
Drone body: F450
Motors: 2212 920kv
...
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Could using a 2.4GHz controller frequency interfere with an onboard computer trying to access 2.4GHz WiFi networks?
My situation is this:
I will be building a quadcopter drone (and later a hexcopter) that will most likely use 2.4GHz RC with a Pixhawk. I will also have a computer onboard (Raspberry Pi, either 4B or ...
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DJI Mavic Mini Specs
There are some specifications I was wondering about the DJI Mavic Mini.
First of all, is there a minimum or maximum temperature the drone can operate at?
What is the capacity and C rating on the ...
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Which drone kit is this
Which drone kit is shown here:
https://www.youtube.com/watch?v=QJOONKjX9xQ
What are your opinions of it?
R
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Home made simple drone- need some directions
I made this small foam board frame.
I attached 4 motors after taking care that diagonally opposite motors rotate in same direction and adjacent ones in opposite direction. I ensure I wired the ...
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What drone or drone kit allows long range {SD FPV and payload data forwarding}
I am looking for a drone which is able to:
maintain an RF link between 5-10km from the receiver
get easily modified to carry an external payload (assume another IMU+GPS) and transmit the payload data ...
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Lift off without receiver
Can I make a small drone frame achieve lift using 4 coreless 3.7 v motors of 55000 rpm, 3.7 v lipo batteries having 40c without a receiver and remote. Motors are all alike. The propellers I have are ...
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Control a servo through the flight controller PPM output and a ppm to pwm card
I have a quadcopter on which I want to connect a servo, I bought a ppm to multiple PWM converter to connect on the flight controller PPM output, but I don't find how to tell betaflight to control the ...
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What is the standard setting for the Ele stick in FPV mode
I've been flying quads for quite a while both line of sight and FPV. I started with Liftoff simulator FPV where I had the settings set the way that when I move the Ele stick backwards, the drone moves ...
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Is my drone battery too large?
I'm new to the drone game. I'm building an Arducopter S500,(2015) with 2212 KV920 max 1200 gram, brushless motors, 10/45 blades, SimonK ESC's, Lipo 5200 11.1V battery, and GPS 2.8. My controller is ...
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Why doesn't my GPS get any satellites?
I got a new GPS for my Matek f405, and after I set it up and got betaflight to recognize it, I can't get any satellites. It's a BEITIAN BN-220T.
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ArduCopter motor spins at full throttle when armed
When I arm the drone the motors start rotating at some throttle percentage may be (7%) and the drone will automatically disarm after 14sec and again the process repeats after I arm the drone.
After ...
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Quadrotor sizing
I am trying to make a quadrotor UAV (with inverted props) which has 4 circular/semi-circular attachments to help it glide for a longer distance. I have a constraint on the mass, but I don't have any ...
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Dshot 600 ESC is not responding to the transmitter
I'm building a drone with arducopter 2.8 (ArduCopter V3.2.1) and I'm using the DSHot 600 (BLHELI_S) Opto ESC's as my ESC and when I connect the Opto ESC to the arducopter and arducopter to the ...
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I am looking for a board like the Multiwii Crius SE. It is currently discontinued and I really need an alternative that supports Multiwii firmware
Here is a link to Multiwii and it's site --> http://www.multiwii.com/
Multiwii was really popular around 2011 to 2015. Ever since, their best board, the Crius SE, has been discontinued. I am really ...
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Are the power connections for BECs of ESCs made in parallel or series with each other?
I see the 5V power pin of BECs all are connected to the flight controller, but within the flight controller, is this registered as a 4 5V batteries in series or parallel? In series would not make ...
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Remote controll via Mavlink with iNAV 3.0?
I'm not that familiar with Mavlink, but try to find a way to controll my FC Omnibus F4 nano v5 via a serial connection to a RPI (which is itself connect to a wifi).
Using mavproxy, I'm able to ...
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Drone show and swarm robotics
I am working for my company and we are studying swarm robotics
we would like to host a drone show for starting, and then implement swarm robotics (maybe with Agent Oriented Programming?)
We have ...
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why do drone frames have spaces and holes
This may sound like a very dumb question, but I am building my first quadcopter and I just realized that some frames have these perfectly symmetrical holes/spaces.
I used up all the screws on mine, so ...
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Working on a Quadcopter. Unsure if this flight controller supports an FS-IA6 receiver
I am really new to drone building and I have had some awful luck trying to figure out what is compatible with what. Here is the link to the AIO flight controller I chose to use for my build. It won't ...
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Is it possible to hijack a quadcopter?
Is it possible to hijack a quadcopter?
Like an attacker would jam the controller's signals and send his/her own signal to controll the drone. If so, what would be the technical steps?
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