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Questions tagged [quadcopter]

A quadcopter, also known as a quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors.

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Why do we need to design controllers (feedback) for controlling a quadrotor?

For example if I want to make my quadrotor hover at a particular height, can't this be achieved by using an altitude sensor, and to correct it's position due to disturbances, can't we just write some ...
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Naze32 flight controller not connecting to RC

Cleanflight reads my Naze32, but the RC values aren't responding at all. Everything is connected and double checked that the wires were connected properly and firmware was flashed. Just not getting ...
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1answer
55 views

Arduino based quadcopter flipping problem [closed]

I have built an Arduino DUE based quadcopter and I am using HC-12 as a transmitter and receiver between my laptop and the quadcopter. What am I doing is just send a speed value from my laptop and ...
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1answer
18 views

what specification required for quardcopter to pickup 5kg weight

For a college student project, I am designing a quadcopter with a payload of 3-4kg. As I am new I don't know what are the implications of such a requirement on the quadcopter design. In particular ...
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does anyone are familiar with ardrone's IMU?

I would like to present a visual-inertial navigation system based on ardrone2.0, so I need to calibrate jointly the forward-looking camera and the inertial measurement units. unfortunately, I don't ...
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15 views

Hover control for quadcopter doubt?

For my project I need to make a hover control using state space approach for a quadcopter. So far I have taken a non linear state space model from a research paper that used 12 states, 4 inputs and ...
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1answer
21 views

DJI E310 Thrust Coefficient

I am reading Denis M. Filatov et al.'s paper "Parameters identification of thrust generation subsystem for small unmanned aerial vehicles" (https://www.semanticscholar.org/paper/Parameters-...
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17 views

Ho to power Turnigy 9X 9Ch receiver through ESC using Multiwii 328p FC?

I am new to RC community and trying to build Quadrotor/Quadcopter for the first time. I am using Mulitwii 328p flight controller and trying to connect Turnigy 9x 9ch receiver . I want to power the ...
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1answer
59 views

How to implement a novel control algorithm for a drone

I and my research team are working on a novel drone design based on trirotor. The difference between this design and a trirotor is that it has an extra propeller to generate additional thrust, ...
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12 views

what is the local minima problem in robot motion [duplicate]

How should we describe the concept of local minima in robot motion in layman's terms? Is local minima a rare or common occurrence in robot motion planning using sampling based algorithms? what is the ...
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2answers
39 views

sampling algorithms in motion planning and local minima

I am trying to run RRT algorithm for motion planning for a quadrotor. The quadrotor ends up sometimes in corners without reaching the goal. I realized from sources online, that it is due to local ...
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1answer
64 views

Wait simulation time in a non realtime ROS simulation en python

I want to control a quadrotor with a Python script and run the simulation as fast as my laptop can, not only in real time. I've modified my world and now the simulation runs with 7-10 real time factor....
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58 views

stable altitude quadcopter

I'm currently working on a project to generate a stable altitude and automatic control for a quadcopter I'm using arduino as the flight controller Ultrasonic sensor HC-SR04 MPU-6050 However my ...
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1answer
71 views

Quad-rotor 1-D Linear Control Simulation with MATLAB

I was Performing Programming Assignment with MATLAB for Quad Thrust and Height for an Introductory Course. The control input for a PD controller was According to the Equation u = mass*(diff(s_des, 2)...
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Human quadcopter

We are doing an engineering project on human quadcopter. We are aiming to lift a maximum payload of 150 kg. I'm almost done with the motors and ESC, but what type of flight controller and power ...
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1answer
71 views

What's the main difference between different motion capture systems (Vicon, Optitrack, etc)?

Last month I visited a quadrotor laboratory ($ 20m^2$ approx). They used both Optitrack and Vicon systems. However, they told me that Vicon cost 10 times as much as Optitrack. Considering that any ...
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1answer
249 views

MSP (Multiwii Serial Protocol) receiving data with pyMultiWii issue

I want to get telemetry data from my flight controller (Matek F405-CTR) and send control commands to it via MSP protocol. I've already configured UART3 port on Matek in Inav configurator (look at pic)...
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2answers
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Powering multicopter with multiple dedicated batteries

I am in the starting phase of building a fairly large octo-copter drone. I am currently thinking about the possibility of powering my octo-copter design using 4 separate batteries where each battery ...
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1answer
25 views

Excessive Heat Coming From Video Transmitter and Motor Electronic Boards

I'm building a quadcopter and I'm finding that certain electronic boards are heating up beyond what I believe the heat should be. In this case I hooked up the video transmitter and then tested it. ...
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1answer
29 views

publishing on rostopics

I want to publish via terminal a particular message format - sensor_msgs/Joy. However, every format I use seems to be wrong and I cannot understand how it is meant to be written on the terminal. On ...
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1answer
40 views

Quadcopter ESC failure on first test flight

One of my four ESCs burnt out on a first test flight of a new quad build. I plugged the battery in, armed the drone, and one of the motors spun for less than a second before stopping. I immediately ...
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1answer
54 views

c++ Library for trajectory correction

I have a trajectory of a quadcopter in 3D. Out of all the poses in the trajectory, I want to correct one of the poses. I then want to adapt the rest of the poses based on the newly corrected pose. I ...
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1answer
44 views

BetaFlight sees motors working, but motors not spinning

I am using FlySky i6 Transmitter and a FS-iA6B receiver. I have it set up using PPM and BetaFlight recognizes the motors in the Receiver section. All the values adjust according to the toggles and ...
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1answer
61 views

Can quadcopters save energy by flying in formation?

If two or more quadcopters are aligned, would the effect of drag due to the lead quadcopter's slipstream lead to measurable energy savings? And if so, how would one determine the optimal distance ...
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What are the considerations when using a sensorless driver

I am planning to build a quadrocopter and consider using BLDC motors. For some of these motors dedicated discrete drivers are available, but they come very expensive. On the other hand, there are ...
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1answer
53 views

More than 6 cameras in Nvidia Jetson boards

A recent startup named Skydio develops autonomous drones for photography. The drone is named as R1 and utilizes 13 cameras to map its surroundings for localization and motion planning. The brain of ...
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Motor propeller combination query

I'm building a drone. It is an octocopter with two propellers on each side. I'm using 2 propellers on each side for redundancy purpose, beacuse it will be carrying a heavy camera. My drone weight is ...
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1answer
60 views

Doing a project for college for a manned drone theortically only

Weight of the Drone in total will be 240 Kg. It Will be a quad copter drone setup but with 8 rotors(two on each corner) for redundancy purpose. Aim is achieve Thrust/weight ratio of 2. So need total ...
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43 views

ZED stereo camera with TX1 for NON-GPS RTL

My question is regarding ArduPilot firmware specific to copter. It is mentioned in the ardupilot documentation that ZED camera may be used as an alternative to GPS based navigation. It actually holds ...
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90 views

Interfacing a Flight Controller with an Arduino?

I would like to know if it is possible to read telemetry data from a flight controller such as the Omnibus F3 or Seriously Pro F3 using an Arduino. The end goal is to be able to program certain ...
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2answers
108 views

Quadcopter mathematical model and controller design

if we just examine the translational dynamics (X and Y direction), the dynamics are coupled, So if I want to design a PID controller to control the position, the outcome will be unpredictable because ...
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197 views

Quadcopter flight controller alternatives

I've built my first Quadcopter following this instructable http://www.instructables.com/id/The-Pi-Quadcopter/ So like it says, the way I achieve communication with the drone is via an Android app, ...
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1answer
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Drones classification based on flying mechanism and communication link

I am confused about autonomous drone flight. Thats why I am asking the question here so that a drone expert can help me to understand. I have heard about tow kinds of drone drones that work through ...
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Dimensions of an X Quadcopter frame

I'm writing a paper on the calculations required to design of an X frame Quad copter for any particular load.There isn't a lot of material available to guide me through what actually needs to be ...
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Compatibility of my quadcopter build

I am building my first quadcopter and have multiple questions. I am using a Crius MWC Multiwii SE 2.6 flight controller which will get input from a Raspberry Pi Zero. I have this 4in1 ESC and this ...
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Quadcopter bldc PID control

Working on stabilizing a Quad using Arduino Due. I have slightly modified one of the examples of Jeff Rowberg's library to give yaw, pitch and roll angles (zero initialized angles). Moreover, I am ...
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0answers
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Multiple antenna styles on FPV without true diversity

I did a search and couldn't find a site that stood out as RC. I was hoping you guys would be closest. Here's my question. I bought a set of Eachine EV100 FPV goggles. Every resource I've looked at ...
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Treatment of euler angles in quadcopter control

In most implementations of quadcopter control systems I've seen, each axis of the quadcopter is controlled independently. For example, to control the rate in the roll axis, the desired output is ...
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how to get velocity of Ar drone 2.0

i have question about AR Drone 2.0. i am using ROS Gazebo and Python. my question is how to get velocity of quadcopter? i need velocity to count position of quadcopter. Thankyou.
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128 views

Quadcopter stable with angular velocity but not with absolute angle

I'm making a flight controller for quadcopter. It is very stable when regulated by angular velocity, but it is horrible when regulated by angle. What are the potential problems when regulating a ...
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0answers
59 views

Quadcopter with wind effect

I drawn the Simulink model of a quadcopter with virtual joystick input and now I want to add the wind but I am little bit confused how to add wind with that model. actually my model is like that input ...
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1answer
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Find IMU based on previous works [closed]

I'm building a quadrotor robot and my supervisor has asked me to make a report of the IMU modules used in previous works, I couldn't find such reports however. Does anyone know how to find such ...
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53 views

Connect Multiple Drones with ground computer over wifi

I want to control Multiple UAVs with Qgroundcontrol (similar to this simulation) over wifi. For single drone control, I can connect my pc to the wifi of a drone but I can't change to select other UAVs ...
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2answers
53 views

Receiver is getting really hot

I am building a quadcopter and I am on the last part of it (normally the exciting part) where I bind the controller to the receiver. I can get the receiver, which is plugged into the quadcopter, to ...
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2answers
132 views

How do I tune the cascaded PID controller in my flight controller?

there is a lot of information out there on how to tune quad PID parameters. However, they mostly regard only the master loop that takes user input and fused absolute angles. How and in which order do ...
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1answer
202 views

MPU6050 inconsistent Gyro data

I'm using an MPU6050 for a custom flight controller and I am facing an issue when reading the values from the IMU. The data shown below represents the angular velocity in the y-axis. When the angular ...
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1answer
74 views

Quadcopter stabilisation

I recently built a quadcopter and programmed a code to stabilise itself. The copter takes the hight from a distancesensors and the angle from a MPU 6050 gyro and accelerometer with a complementary ...
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70 views

How can I use roll, pitch and yaw data to have a quadcopter level itself automatically?

I am creating a quadcopter by using Arduino, Gyro IMU6050 and other electronics equipment. I want to know how to program it to level itself automatically. I also was successful by reading the raw ...
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How can I send commands from raspberry pi model 3B to Seriously Pro 3 Flight controller? [duplicate]

I am trying to make a quadcopter that receives commands from my android mobile phone. I currently have the following: Raspberry Pi 3 Model B running on Raspbian. Pi Camera Seriously Pro F3 Flight ...
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1answer
80 views

Quadrotor 2D Dynamics

I am trying to understand the control of the quadrotor in 2 dimensions from the Penn course on aerial robotics. The attached image describes the linearization of the control efforts assuming that the ...