A quadcopter, also known as a quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors.
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Choosing battery for quadcopter with optimal capacity [on hold]
let say my quadcopter is weighing 1kg and I'm using a 1000kv motor with 30A ESC then which battery and with what capacity do I prefer for a good flight time
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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
30 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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2answers
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What I need to learn to build drone to monitor climate changes [closed]
Based on this answer to a question about what to learn to create a robot:
I am a telecommunications engineer with a knowldge in different programming languages and electrical/electronic circuits ...
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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
33 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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39 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
36 views
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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20 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
27 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
21 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
46 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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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
60 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
42 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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57 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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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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28 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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1answer
59 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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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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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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2answers
38 views
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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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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58 views
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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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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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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33 views
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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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
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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
80 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
129 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
50 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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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
63 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 ...
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How should I reduce noise in my EKF?
I am estimating orientation of my quadcopter and my EKF is way noisier than the complementary filter I had before.
I am integrating the gyroscope at about 100Hz and I am also integrating my ...
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1answer
93 views
Quadcopter filter and Angular rate vs angle (Arduino programming)
I wrote an Arduino program for my quadcopter that sets to power of the 4 ESC's using software. Now I need to incorporate the gyro and add a "Complementary Filter" to stabilize it.
I am currently ...
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33 views
How do you update the quaternion from an accelerometer or magnetometer in an Extended Kalman Filter?
I'm trying to implement an Extended Kalman Filter to estimate the attitude of my quadcopter. I am following these two papers: Trawny, Sola
Currently using only 4 states:
$$x = \begin{bmatrix} q_x &...
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50 views
Debugging my Quadrotor Controller SE(3)
I am trying to simulate and implement the controller of the paper Geometric Tracking Control of a Quadrotor UAV on SE(3). I have both the dynamics and the controller implemented but there seems to be ...
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1answer
56 views
integrating perfect rate gyro data (noiseless)
Having a perfect gyro (with no noise/drift or bias), the gyro produces angular velocities in the form (wx, wy, wz) in rad/sec.
I would like to convert the rate gyro readings (which are expressed in ...
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1answer
30 views
How do i figure out how much thrust an 150cc Size Brushless Outrunner Motor will output with propellers? [duplicate]
I need to know this as i'm trying to figure out if two of these could lift approximately 170 pounds of wheight. And that's includig batterys and the motors.
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Quadcopter holding algorithm
I am working on a project related to quadcopter. I have also build a algorithm based on PID controller for controlling climb sink rate and also holding but it did not work correctly. My function to ...
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How to create a Position controller for a Quadrotor
I have a controller that uses Theta,Z,Psi and Phi as a command. Now I want to create a position controller so that I can command a trajectory. I have checked a similar question raised in this attached ...
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1answer
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Quadrotor SE3 Controller: Calculating Rd_dot
I am trying to simulate and implement the controller in the paper Geometric Tracking Control of a Quadrotor UAV on SE(3). I have the dynamics implemented, however I am stuck at one part in the ...
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2answers
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How can I protect my props from being damaged?
I have a quad copter and I'm developing my own flight controller to run the code and testing it on the quad.
As you all must be knowing, this means a lot of broken propellers.
I thought of making a ...
