Questions tagged [hardware]

For questions about the physical parts and components that make up a UAV.

Filter by
Sorted by
Tagged with
5
votes
1answer
17 views

Can I replace the switches on my taranis qx7s with switches from a X9D?

One of the switches on my taranis qx7s recently broke, and when looking at replacement switches I found two alternatives; X9D and X10/X12. The X9D switches are much cheaper than the other, so my ...
7
votes
1answer
74 views

Is there a method to wire a brushless motor to an ESC so it spins in the required direction first time?

So I know that three phase motors will reverse direction when 2 wires are swapped round, or that the direction can be changed in software (such as BLHeli). But is there a method to get it right first ...
8
votes
1answer
138 views

What can I do with a LiPo whose balance lead has been destroyed?

I'm starting a bit of a collection of batteries which have been ejected during a crash and ended up with a destroyed balance lead. Is there anything other than disposing of them that I can do, ...
6
votes
3answers
106 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 ...
10
votes
1answer
196 views

What do the numbers mean on a brushless DC motor?

Brushless DC (BLDC) motors can have a range of numbers on them: A four-digit number (e.g. 2212) A Kv number (already explained on this site) A number with N and P (e.g 12N14P) What do they mean?
6
votes
1answer
81 views

How can I run 2207 2450Kv motors on 4S with 7” props?

I’m looking to use some spare motors I have to build a 7” rig. The problem is that they are 2450Kv, and I don’t want to burn out my other components. As I understand it, if I set a motor output limit ...
1
vote
2answers
35 views

When evaluating the weight of a multirotor, is there a standard way that the components are grouped?

Let's say we can all agree on that the frame and landing gear are one group, would you group the motors, props, ESC, and Batteries together, or split them out as four separate items? Does the wiring ...
2
votes
1answer
66 views

How to build a buddy box cable for FlySky FS-i6X RC transmitters?

I have a couple of FlySky FS-i6X RC transmitters that I'd like to use to teach my brother how to fly. I've seen other people use "buddy box" cables that connect two transmitters and allow one person ...
5
votes
2answers
38 views

Does motor KV requirement scale linearly with voltage?

There have been myriad questions regarding motor KV, such as this one. Many of these come close to answering my question, however none have given me a definite answer. If I am picking motors for a ...
4
votes
3answers
65 views

How useful is knowing the torque generated by a motor prop combination?

I'm designing a series of small drones for use in a swarm configuration in combination with terrestrial / marine / submarine robots. As part of the process, I've designed a test rig to measure the ...
15
votes
2answers
2k views

Flying a UAV with a banner?

I want to attach a banner to a UAV like this: I have two questions: Firstly, is it even possible to fly a UAV like this with the banner visible? What sort of design considerations would I have to ...
5
votes
2answers
116 views

When I power up my flight controller and ESC's, I hear a series of beeps. What do all of the beeps mean?

How can you use the series of beeps you hear when powering up to diagnose issues with your equipment? Should all of the beeps be synchronized or is it ok if they are slightly off? Are there ...
4
votes
3answers
89 views

How should one chose the correct motor KV for a build?

For a 5 inch, 4S build, the general advice is to go 2300-2750KV. For the same size but 6S, it should be ~1800KV. However the same motors could be used on a 4S 7 inch quad. And all of this scaling ...
5
votes
2answers
108 views

Can I salvage a 4in1 ESC?

I have a 4in1 Brushless ESC that only one ESC burned out on, but the rest should still be usable. Is there a way to salvage it and use a single ESC to replace the burned one or something? If so, how ...
3
votes
1answer
105 views

How does a propeller with more blades create more “grip”

I have heard that the more blades a prop has, the more "grip" it has in the air at the expense of speed. How do more blades create more grip but lose top speed?
3
votes
1answer
66 views

What propellers should I get for my drone?

How do I know what type of propellers to get for my drone and what do the specific numbers for each propeller mean?
12
votes
2answers
60 views

What should I look for when buying FPV goggles?

What features should I look for when I’m buying a new set of FPV goggles?
-3
votes
1answer
43 views

What electronic components does every quadcopter need? [closed]

What electronic components does every quadcopter need? What do they do, and how do they all tie in? Where does software come into play?
9
votes
2answers
72 views

Why is an MPU6000 more well suited for drones than an ICM IMU?

I have seen people say that the MPU6000 is the superior gyro chip, even though the ICM chip has a faster refresh rate and is technically superior in any other use. Why is it better to have a lower ...
7
votes
2answers
67 views

Difference between a 3 and 6 axis gyro

When shopping for drones, I see a 3 and 6 axis gyro available, what is the difference between the two? Does one have a advantage when flying over another?
6
votes
2answers
96 views

What is the advantage of a stretched-X frame over a true-X or squished-X design for racing?

Most racing frames on the market appear to be stretched-X (longer than they are wide). I have heard the argument that a stretched-X allows better airflow to the rear props due to physical distance, ...
9
votes
3answers
67 views

How do you waterproof your electronics?

I fly FPV drones a lot in the winter where it is wet and snowy. What is the best way to protect your equipment from shorting out from water?
7
votes
1answer
39 views

What should I look for when choosing an FPV camera?

I know that cameras are applicable to lots of fields, but FPV cameras are a special category with a very specific set of requirements - what should I look for when picking an FPV camera?
7
votes
1answer
64 views

How fragile are the SMA connectors used in FPV equipment?

I've heard that it is a terrible idea to install and remove SMA antennae from my goggles every time I need to pack it away after a flight session. I know that this is because the SMA connector is ...
5
votes
5answers
74 views

What affects the total flight time for a drone?

What factors would affect a drone's flight time? Battery capacity? Weight? Anything else?
6
votes
1answer
71 views

What are the typical methods of constructing a large airframe?

When building a 5 feet wingspan UAV, what building techniques: used on smaller aircraft can't scale to aircraft of this size? are best used on aircraft of this size? Ideally, I want a simple ...
6
votes
2answers
63 views

Differences between brushed and brushless motors - advantanges and disadvantages of each

When buying a drone I have 2 options to consider: brushed and brushless motors. Are they much different from each other? Does one have advantages over the other?
4
votes
2answers
48 views

How to tell if you have a brushed or brushless motor?

I understand there are 2 main types of motors: brushed and brushless motors. How can you tell visibly what type of motor you have without researching/reading the manual?
9
votes
2answers
61 views

One motor on quadcopter broken

I have a small quadcopter and I realised one of the motors does not turn electronically, meaning it can't fly properly. There is no visible sign of something stuck in the motor, like some string or ...
9
votes
4answers
106 views

How do I pick my gear when getting started with FPV multirotors?

There are a large number of beginner and starter kits out there for people looking to get into multirotor FPV flying, all touting their various advantages over the competition. What should I look for ...
6
votes
2answers
65 views

What are good specifications for a intermediate medium priced quadcopter?

What are good specifications for an intermediate medium-priced quadcopter? I have flown a smaller quadcopter before and developed a bit of an understanding of how they work and how to control it. I ...
6
votes
1answer
33 views

FS RX2A Pro Receiver Not Working

I'm building a drone for the first time following the Prusa tutorial (https://blog.prusaprinters.org/how-to-build-a-3d-printed-micro-drone/) but couldn't get the RC receiver to work. I got my receiver ...
-3
votes
1answer
75 views

How important is the plastic coating around a coax? [closed]

I was swapping over my pigtails and part of the plastic coating around the coax came off. The coax is still firmly soldered to the SMA connector - is this salvageable with some heat shrink, or do I ...
3
votes
1answer
49 views

What are the exact specifications of a RushFPV SMA connector?

I am designing a mount for a RushFPV SMA connector and have not been able to find the technical details. I need: The diameter of the connector The distance between the mounting screw holes The ...
4
votes
2answers
134 views

How can I configure a servo in Betaflight?

I’m looking to make a drone capable of deploying a parachute, so I need a servo release mechanism. How can I configure a servo and map it to a switch in Betaflight? Thanks.
8
votes
3answers
101 views

What should I keep in mind when picking my first drone?

While I don't know much about drones yet, I've seen people use them to make awesome photographs and videos, and I want to be able to do that too. Since I've never flown a drone, I'm looking for a ...
4
votes
1answer
34 views

What is a ground loop and how does a common ground reduce video noise?

To reduce video noise, it is often recommended to add a common ground between VTX and camera to avoid ground loops. What is a ground loop, how does it add video noise and how can a common ground ...
7
votes
1answer
72 views

How to restore LiPo-powered aircraft that have not been flown for years?

I have a bunch of relatively inexpensive battery-powered radio-controlled aircraft that I haven't flown in over a year. I haven't flown some of them in over 3 years. The aircraft are airplanes, ...
16
votes
3answers
160 views

Storing drones during the winter

Up here in Canada, it can get kinda cold during the winter. And just because of where I tend to use my drone, it can be easier for me to store it in an outdoor (dry, but unheated) shelter than to haul ...