Questions tagged [quadcopters]

A multirotor that uses four non-coaxial motors/propellers to fly.

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Mathematical Model of Drones

I have recently decided to take up a small project at my University involving ML techniques and UAVs. TO get started, I have been looking for mathematical model of UAVs, but a lot of places offer a ...
Prat K.'s user avatar
3 votes
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How to "convert" rotoss thrusts to Yaw/Pitch/Roll/Throttle commands

I'm trying to use Flightmare(home) simulator to create a control model using reinforcement learning. The simulator is great, but its environment accepts step command with four values of rotor thrusts ...
somers's user avatar
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Is it feasible to enhance Google Maps by incorporating drone imagery, similar to satellite views, for improved visualization of locations?

I've been using Google Maps to scout locations for my drone photography, and it's been incredibly helpful for planning my shots. However, I've been wondering if there's a way for me to contribute more ...
Suri Freeman's user avatar
1 vote
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How to connect Matek H743 FC to Raspberry Pi 4

I am using INAV firmware with Matek H743 FC. I want to connect FC to Raspberry Pi and read data from lidar/optical flow and GPS sensors. Culd you please provide me with documentation ? I dont know ...
captain-yossarian from Ukraine's user avatar
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1 answer
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transmitter not connecting in multiwii

i built a drone usiong multiwii controller and uncommented drone x and mpu6050 lines i calibrated the motors using it also but when i operate transmitter using multiwii software the software and drone ...
Rathore Brothers's user avatar
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Why are my motors not spinning at the same time although I calibrated them?

I'm currently working on a DIY project to make my own homemade Arduino based quadcopter drone. I have built the structure and have written the program. The drone consists of 1400KV motors, SimonK 30A ...
Ishaan Manish's user avatar
1 vote
0 answers
32 views

Determining Typical Bandwidth for 2.4GHz Radio Control in Drones for FPV Camera Data Transmission

I'm working on a drone project that involves transmitting FPV (First Person View) camera data using a 2.4GHz radio control system. I'm trying to calculate the potential delay in transferring this ...
hunterlineage's user avatar
3 votes
1 answer
380 views

Would it be possible to perform a manual flip with my camera drone?

I have a Snaptain SP510 camera drone. I haven't flown in a while, but I'm interested in getting back to it. After seeing some videos, I began to wonder if I'd be able to perform a manual flip. I know ...
Sovereign Inquiry's user avatar
1 vote
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45 views

Drone that can send live camera footage, GPS coordinates and maybe IMU readings to a remote PC

I need to acquire a drone for my dissertation project. The main requirement is to be able to transmit camera footage to a remote PC for processing. If possible, it would also help to send GPS ...
Daniel Bancos's user avatar
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1 answer
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How to calculate total moment around Z-axis when the armlengths are not the same for all motors on a hexacopter?

I am trying to build a mathematical model of a hexacopter where armlengths (distance to the center of mass) are not the same for all motors. I have the datasheet of the motor I plan to use together ...
trxrg's user avatar
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Drone is not holding its position

I am working on a quadcopter drone, i am using s500 drone frame, pixhawk 2.4.7 flight controller, dji 2212/920 bldc motor. I am planning to use Raspi-4b to control the drone. But before that, while ...
Aaron Crt's user avatar
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1 answer
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Which DC motors (or others) are good enough for my multi-function drone?

I am planning to make own drone which flies and dives (Some servo motors used to change between fly and dive-mode). But is a normal DC motor or a micro motor good enough (It flies and dives under tens ...
NearEternal's user avatar
0 votes
1 answer
23 views

MINI F7 (HD +OSD +VTX SWITCH)

How does the switch in the MINI F7 (HD +OSD +VTX SWITCH) flight controller works? I know that you have to connect to pads, but then how can you change, for example, from DJI system to a SBUS input? ...
Giol Vinyals i Roca's user avatar
2 votes
1 answer
254 views

Raspberry pi controlled drone: using raspberry pi as a receiver

I build a drone very similar to the Rotor Riot Cinewhoop, I want to use a Raspberry Pi zero to make the drone fly autonomously. I think that the best idea is to use the Raspberry Pi as a receiver, and ...
Giol Vinyals i Roca's user avatar
1 vote
1 answer
47 views

Software for drone navigation around buildings with 2D or 3D maps available?

When you purchase and use a drone, such as a DJI AGRAS drone, you typically gain access to the DJI software (e.g., DJI SmartFarm App) that provides a bird's-eye view of the map. I am looking for ...
Baku Bakar's user avatar
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DIY or Custom Quadcopter

I want a quadcopter with (2)lb payload capacity, (5)mi range, 30mph min. speed, long-range fpv, waypoints, & ZERO enforced geofencing. I am willing to use/accept any combination of hardware/...
Johnny Kirby's user avatar
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1 answer
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Claw using brushed ESC in conjunction with brushless ESC on Kakute H7

For a challenge, my club and I have been building a drone with a claw on the bottom. We found a good lightweight claw, but it uses an N20 Geared brushed motor. We have a brushed motor ESC(Quicrun 1625 ...
demon_of_speed's user avatar
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1 answer
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Which Drones are most popular for speed, durability , long battery life? [closed]

Also I’m having trouble finding good drones tha can do flips and have good quality of winds resistance and durability, which drone will be worth my time and money ; I have had Dij mavic loved it! But ...
Trill's user avatar
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1 vote
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Enabling obstacle avoidance in a cheap Chinese drone (E100 Mini Drone)

I bought the E100 Mini Drone, similar to this - and it seems the obstacle avoidance function doesn't work. I can still return it, or keep it for a refund of roughly half the price. I'd keep it, if it ...
SF.'s user avatar
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Why is my drone unable to fly?

I have made a drone using Arduino on my own, but unfortunately, it is unable to fly. What I mean by that is that the motors are working perfectly fine, but even after going above 70%, my drone is ...
Ishaan Manish's user avatar
2 votes
0 answers
80 views

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 + ...
Dark Sorrow's user avatar
0 votes
1 answer
119 views

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 ...
tinker102's user avatar
1 vote
1 answer
23 views

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 ...
codingnoob's user avatar
1 vote
1 answer
39 views

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-...
dontoronto's user avatar
1 vote
1 answer
75 views

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 ...
Teo Protoulis's user avatar
1 vote
0 answers
37 views

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 ...
FourierFlux's user avatar
1 vote
0 answers
21 views

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 & ...
falcon's user avatar
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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 ...
Hussain Akbar's user avatar
1 vote
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22 views

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 ...
Juan de Dios Flores Mendez's user avatar
1 vote
1 answer
152 views

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 ...
AndreaF's user avatar
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2 votes
1 answer
337 views

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 ...
AndreaF's user avatar
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1 answer
287 views

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 ...
Mike Arkl's user avatar
2 votes
1 answer
36 views

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 ...
falcon's user avatar
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2 votes
1 answer
114 views

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 ...
falcon's user avatar
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2 votes
0 answers
34 views

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 ...
Apoorv Pandey's user avatar
0 votes
0 answers
485 views

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: ...
user255936's user avatar
2 votes
1 answer
295 views

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?
AndreaF's user avatar
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1 vote
2 answers
453 views

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 ...
AndreaF's user avatar
  • 225
1 vote
0 answers
129 views

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 ...
Mihir Salot's user avatar
4 votes
0 answers
70 views

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 ...
Arj's user avatar
  • 191
3 votes
1 answer
90 views

(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 ...
thouxan's user avatar
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39 views

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 ...
Simon McPhee's user avatar
0 votes
0 answers
71 views

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 ...
shivank anchal's user avatar
2 votes
2 answers
225 views

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 ...
Simon Henn's user avatar
3 votes
1 answer
124 views

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 ...
Simon Fox's user avatar
  • 148
2 votes
1 answer
86 views

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....
CipherX's user avatar
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3 votes
1 answer
151 views

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 ...
cool bean's user avatar
1 vote
1 answer
131 views

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 ...
SAVAGE BOI's user avatar
2 votes
1 answer
55 views

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 ...
Proxy303's user avatar
  • 303
3 votes
3 answers
685 views

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 ...
Michael Bonnet's user avatar