Questions tagged [quadcopters]

A drone which uses four motors to fly.

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4
votes
2answers
105 views

are the power connections for BECs of ESCs made in parallel or series with each other?

so i see the 5V power pin of BECs all 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 sense ...
4
votes
0answers
18 views

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 ...
5
votes
0answers
26 views

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 ...
5
votes
1answer
365 views

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 ...
5
votes
1answer
51 views

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 ...
2
votes
2answers
126 views

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?
5
votes
2answers
56 views

Proper rotor fastening (Nyloc nut)

I am trying to figure out how to properly fasten my rotors on my quadcopter. I am pretty sure the nuts are Nyloc, but here is a picture for reference: I read online in many places that you should ...
5
votes
3answers
98 views

Why can't quadcopters handle failure of one rotor?

Ardupilot can detect (and it logs) motor output mismatch. I think detecting in flight motor failure is possible with modern firmware and flight controllers. Then if one rotor fails, why can't we have ...
6
votes
1answer
54 views

Diy drone Digital control/communication

Is there a solution for digital drone communication through Wifi for diy fpv drones? I'm searching for a way to build a drone that have multiple cameras and communicate with my computer through wifi, ...
6
votes
1answer
48 views

Connecting 4 in 1 esc with power module

I have a 4 in 1 iflight esc currently connected to my motors. I am attempting to interface it with my flight controller (Pixhawk 4), which comes with a power module (https://docs.px4.io/master/en/...
5
votes
1answer
73 views

How to tune a Deadcat Quadcopter with 10 inch props and asymmetrical mass distribution along the roll axis with a low power to weight ratio?

I have a quadcopter with TBS discovery frame and 10inch props running on 810Kv motors on 3S. The quadcopter has an asymmetrical mass distribution since the heavy battery pack at the back causes the ...
4
votes
1answer
45 views

Can something be mounted underneath a quadcopter rotor?

I am a bit of a beginner, so I don't fully understand the way the air flows around the rotors in a quadcopter. My question is in the title, and I am basically wondering if something can be mounted ...
4
votes
1answer
47 views

Can I re-flash the Hubsan fpv1 controller with built-in fpv screen?

the only radio transmitters, also called remote controllers, that embed a fpv screen, for seeing what the drone sees, near the joysticks, instead of having to get obstructed vision by goggles, that I ...
4
votes
1answer
55 views

AliExpress drone vs DJI Pro 2

I can buy a drone in US or Canada like the DJI Pro 2 for over 1000$. But when I search professional drones on Ali they advertise many that share many features such as 4K video, dual camera, 20minute ...
4
votes
1answer
86 views

How to debug a non-working Eachine E010?

I have two Eachine E010 drones. One drone (green color) stayed outside for a night with rain. I inspected the circuit board and it shows no damage: no cut cables that I could solder, nothing corroded. ...
4
votes
1answer
42 views

If AUW is 90 grams, will 4500Kv motors be better than 7500Kv?

I have a build that is 90 grams and runs great with 7600Kv motors. My question is, if everything stays the same and I put on 1204 4500Kv motors on it, would I get more flight time? More power or ...
1
vote
0answers
26 views

BS 220 GPS NMEA - UBLOX using U-center

I have a quad with an omnibus f4 v3 flight controller an FS-ia6b receiver. I also have a bs 220 gps wired in correctly to the flight controller however it is outputting NMEA and this has many errors. ...
7
votes
2answers
57 views

DJI F450 ESC calibration fail

everyone. I am building a DJI F450 clone. I've got everything attached except for the propellers. The Pixhawk connects to my mission planner via USB. The remote controller is paired with the drone. ...
4
votes
1answer
71 views

Accessing the video feed of a cheap FPV drone

A while ago, I bought a small and cheap WIFI FPV drone to fly in the office and at home (not outside). It's very funny (It's my first drone ever) and now I would like to access the video stream ...
3
votes
1answer
53 views

Flight controller or ESCs on Eachine Viswhoop not booting properly

After last flight my Eachine Viswhoop stopped booting properly and arming (link to gfycat with sound). When connecting battery to drone I can hear FC beeping but don't get second set of "beeps&...
3
votes
1answer
46 views

Vibrating like a jelly when takeoff

I have Kotleta 20 UAVCAN ESCs. When I trying to increase throttle, motors are vibrating like a jelly. How can I configure my ESCs via development port? What are best options for non vibrated flight? ...
1
vote
1answer
192 views

Is there a benefit to using multiple capacitors on FPV drones?

From what I've heard, you need at least one capacitor on the ESC of a drone so that it can smooth out the voltage spikes to prevent electrical noise and improve the longevity of the ESC. If this is ...
5
votes
1answer
210 views

Visual references when driving a Quad Copter through gates

I am a complete beginner, starting to learn to fly. So far I managed to control the altitude and do some basic turns, I can also do figure eights if the flags are well far from each other. I realised ...
2
votes
2answers
65 views

Would it be possible to inductively recharge a drone battery?

Regular drones can only fly around 15-30 minutes before the battery runs out, which is annoying. Newer smart phones use inductive loading, so it is possible to load a battery through such a field. ...
3
votes
3answers
342 views

Why are micro pusher-prop quadcopters becoming more popular?

Recently, I've seen a rise in popularity of small drones using pusher props. Some of these include the FullSpeed TinyPusher, BetaFPV Beta95X/Beta85X V2, Diatone Taycan and Tinawhoop, and originally ...
1
vote
2answers
83 views

What is the best drone for beginner fliers?

My brothers would like to start drone flying, as they haven't ever flown my Syma before. I am looking for a small, inexpensive pocket or medium drone for beginners that will probably get thrown into ...
9
votes
2answers
635 views

What are the advantages and disadvantages of a “plus” and “cross” quadcopter configuration? Is one preferred over another?

I'm not really an expert when it comes to quadcopters, I heard about the "plus" and "cross" configurations and that the "cross" configuration provides more stability. I ...
2
votes
0answers
36 views

Multi GP gate sizes

Multi GP Gate sizes are given in square inch/ft like so: 25 sq ft (5’x5’ – 1.52m x 1.52m) - those are obviously the size requirements for a square gate. If I want to have a "Multi GP compliant&...
5
votes
1answer
393 views

Betaflight with Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors problem

I build a quad using Mamba F405 MK2 stack 40A ESC's and XING-E 2207 motors. Here are some pictures of my configurations on Betaflight and BLHeli Configurator: https://imgur.com/a/mFLDiVp Also video of ...
6
votes
2answers
78 views

Are these methods of Drone Localization Techniques for a dark environment plausible?

I am working on a project where I need a quadcopter to accurately know its location relative to a starting point in a GPS denied environment in the dark. A quick overview of the project: The drone ...
3
votes
0answers
23 views

What is the frame system defined for Orientations comptutation using Quaternions [Madgwick filter/ Mahony filter]?

I am working with MPU9250 and I have implemented attitude & heading reference system based on Madgwick/Mahony filter. I capture the raw data [accel, gyro, mag] and pass to the Madgwick filter in ...
7
votes
2answers
99 views

Vertical Flight Paths

I've been searching around for software to allow a vertical flight plan. For example I want to flight 50m across a building at 20m AGL. Then drop 1m and fly back 50m. So on and so forth. I've read a ...
4
votes
1answer
210 views

Why don't solutions exist for a 3-axis helicopter flight controller?

So I've been searching around for a 3-axis flight controller for my 450-size helicopter. It seems that nearly every flight controller which is sold today is configured for solely the control of quad/...
5
votes
1answer
35 views

Quadcopter Stability Modelling

We know software like XFLR5 to model fixed-wing aircraft to determine aircraft dynamics and stability. Is there any software which we can model our quadcopter geometry in so we can know it's CoG, ...
2
votes
1answer
56 views

F450 frame all legs are not stable

I have one of the so called popular F450 frames. Not the original dji one, but chinese part. Now, I have assembled motors and ESCs. The assembling process was harder than it should be, probably ...
3
votes
0answers
44 views

What are the steps to connect the Pixhawk to Auvidea J120 board using a telemetry cable?

I'm looking to get a connection between my Pixhawk and Onboard GPU using telemetry. However, it doesn't seem to be connecting for some reason. I followed the instructions given on this page - https://...
5
votes
1answer
95 views

Is WiFi drone control protocol standardized?

I'm searching for an app to control a Zerotech Doby drone. The official app "DoFun" is no more available, but surprisingly it works with another Chinese app "FlightGo". I wonder if ...
5
votes
1answer
81 views

What is a good 3'' BNF that can be used indoors and outdoors?

I am looking to get a new quadcopter that will work in a variety of places. I want it to be a 3'' drone so that I can fly it both outside and inside. I would prefer if it had prop guards or ducts of ...
5
votes
2answers
615 views

Will this set up fry my components?

Frame: Carbon fiber 250mm Motors: 2300Kv 2204 Power board: Matek built in BEC’s 12V + 5V FC: CC3D ESCs: HLGRC 30A opto (no BEC) Battery: Turnigy Graphene 14V 75C 4S Receiver: Turnigy iA6B My question ...
5
votes
1answer
109 views

Finding a ready-to-fly Taranis compatible, Eachine compatible, S4 compatible under 200€ drone

The question I'm looking for a drone under 200€, preferably 5" (as that's what I'm used to) but other sizes are ok, that can be purchased/delivered to France, is compatible with a Taranis X7 and ...
7
votes
2answers
154 views

What are the benefits to different types of frame arrangements?

When looking at different frames, there are lots of descriptions for different ways the arms are set up. Are there objective descriptions of how these arrangement change the flight characteristics ...
4
votes
1answer
93 views

How do you use the PID controller to compensate for a higher weight?

How should you adjust the PID values if you add weight to a quadcopter (For example a GoPro), so that the flight characteristics stay as close as possible to how they were before? I assume that the ...
3
votes
3answers
72 views

Wired drone using very high voltage?

For those of you who don't know: electricity can be "stepped up" to carry the same amount of power over a thinner wire, over much longer distances with minimal losses. Once the power reaches the ...
4
votes
1answer
72 views

Suitable ready-to-fly micro copter for a beginner

I read several docs on the ardupilot website, in particular about building a copter. It was suggested that total newbies (like me) should buy a small inexpensive copter first and learn how to fly/use ...
6
votes
3answers
339 views

How to determine the lowest safe ESC current rating for a drone build?

I was planning to build a quadcopter and was wondering how I should decide what ESC to get. I'm asking about ESC current ratings. I am building a 7 inch drone using 4s with 2306 1900Kv motors. I have ...
6
votes
1answer
139 views

Quadcopter rotates too slow

When I flew my drone yesterday, all the manoeuvres I did felt really slow. I then went into the OSD and changed the rates a bit. The drone then acted as it should, but when I then changed back it ...
3
votes
1answer
228 views

Serial Communication Not working in APM 2.8

I have being trying to establish Serial Communication connection between APM 2.8 and Raspberry Pi Board. But the connection is not being recognized in the Raspberry Terminal Console. Configuration ...
6
votes
2answers
102 views

How to pick parts for a quadcopter flying on Mars?

So let's say I wish to build a quad to fly a GoPro around in Mars. How should I go about planning the build (target AUW [all-up weight], motor to motor distance, propulsion & power system, etc.)? ...
5
votes
1answer
55 views

How to clean dirt out of my miniquad motors?

I accidentally crashed my 250 class quadcopter into the dirt today and got dirt all over it, including into the motors. I managed to clean the dirt off of the frame and electronics, but I have no idea ...
1
vote
2answers
322 views

How to prevent an ESC from overheating?

I have a 5-inch drone with individual ESCs on the arms of the frame. The ESCs tend to get very hot (somewhere around 70°C) and I'm not sure what is causing this and how to keep them cooler. Are there ...