10
votes
What should I look for when choosing an FPV camera?
When choosing an FPV camera, there are several things that you need to look out for:
Sensor Technology
Most modern FPV cameras use a CMOS sensor. These are digital sensors that generally tend to have ...
- 4,432
7
votes
Accepted
why do drone frames have spaces and holes
A major consideration is weight reduction; if material can be removed without significantly reducing the strength of the item, this will result in an increased payload or flight duration. This is ...
- 6,081
5
votes
Accepted
Diy drone Digital control/communication
There isn't an easy solution, because this isn't a common thing to do.
The main issue is that real-time control for FPV requires very little lag. Wifi requires several layers of processing, on a ...
- 7,418
4
votes
Accepted
How to choose a flight controller for my DIY drone?
You need a few things from a power system/flight controller. I don't think you should use an AIO, but that's personal opinion
Cell count
First things first - you say you're using "8 to 12" ...
- 1,049
4
votes
Are the power connections for BECs of ESCs made in parallel or series with each other?
Most multicopters use ESCs that do not have a BEC, which saves space and weight (and the red wire).
Instead they use a single BEC, usually built into a power distribution board (PDB) that can be ...
- 7,418
4
votes
Are the power connections for BECs of ESCs made in parallel or series with each other?
The exact wiring architecture will differ between flight controllers, but (if the BEC is used at all for board power) it's likely that only one BEC is actively used to power the FC. The others would ...
- 6,063
4
votes
Accepted
what is the voltage output from the ESCs of drone motors?
As you point out, the Teensy 4.0 online documentation mentions that neither the digital GPIO nor analog I/O are 5v-tolerant pins. It appears that the ESCs in the kit you linked to only have a PWM ...
- 6,063
3
votes
What drone or drone kit allows long range {SD FPV and payload data forwarding}
I doubt you can grab something off the shelf that can help you with your use case. In any case you will need to put your sensors and payload onboard and set up the logging and data transmission by ...
- 183
3
votes
Kk2.1.6 falling in mid air and losing control
The loose nuts that you hear may be the prop nuts. If this is the case, the props are not held down with enough force and so will be slipping, not providing the torque or the RPM to be able to lift ...
- 4,432
3
votes
How useful is knowing the torque generated by a motor prop combination?
Not very useful.
If you're designing at the absolute limit of what a frame can handle, such that it's as light as possible, then maybe you'll want to know the maximum torque, but you should be ...
- 1,049
2
votes
How to choose a flight controller for my DIY drone?
In addition to the other answer, you need to consider whether you want a flight controller with features such as:
a barometer (for pressured based altitude hold)
a GPS input (racing drones don't use ...
- 7,418
2
votes
Can I replace the 433MHz modules on my homemade remote controller with an NRF24 transreciever?
Building your own radio system is a good exercise for understanding and appreciating the technology, but always remember to include a failsafe.
Regarding swapping modules, it looks like you are using ...
- 6,081
2
votes
Accepted
"Rogallo wing" balsa rubber-band model plan - do you have one?
I found this plan online, which might be similar to what you want. The wingspan is about right, it uses a Rogallo wing and the text in the bottom-right suggests it was in a magazine called the "...
- 6,081
2
votes
Accepted
Can I re-flash the Hubsan fpv1 controller with built-in fpv screen?
I'll start by warning that you may have misconceptions that are leading you in the wrong direction. The reason that FPV screens built into transmitters are not more popular is that screens aren't ...
- 7,418
2
votes
Accepted
Drone Controller, PID Is Enough, or ODE Modeling Required?
You can certainly use a PID based design and tune it from there. This design is simple enough that if you just have XYZ PID controllers and proper output mixing it should work just fine.
I'd recommend ...
- 316
2
votes
Are the power connections for BECs of ESCs made in parallel or series with each other?
Contrary to the previous answers, on a traditional flight controller (taking the KK2 board as an example), all 4 BECs can be connected together if the user blindly wires it that way. Whether this is ...
- 1,049
2
votes
Do I need anything else for this drone build?
This has all of the items needed to build a drone.
Flight Controller
Remote Control and Receiver
Frame
Motors - 4
Electronic Speed Controllers - 4
Propellers - 2 CW, 2 CCW
Assemble it and you will ...
- 501
1
vote
DIY or Custom Quadcopter
It sounds like you are dropping some cell phones in prison fences.
I will hit these point by point:
2lb capacity: Anything 5"+ can do it.
5mi range:
You will need a BVLoS waiver to be legal. Good ...
- 1,078
1
vote
Accepted
How can I calculate the weight needed in the nose?
This aircraft is "close coupled" meaning the tail is very close to the wing. Lengthening the fuselage will make it easier to balance. This can be done both fore and aft of the main wing. ...
1
vote
Why wont my 1000kv brushless motor work with a 10x4.5 propeller?
I think you're most likely running into current limits with your battery setup. The motor you linked to is spec'd for even more aggressive propellers (e.g. 10x5 and 10x6), so it's likely not the ...
- 6,063
1
vote
How useful is knowing the torque generated by a motor prop combination?
The torque a brushless motor is capable of producing is particularly important when dealing with control loops. The torque is directly proportional to the rate of change of RPMs, which is directly ...
- 1,220
1
vote
Accepted
How useful is knowing the torque generated by a motor prop combination?
I am a fan of "More information is better". I believe that torque can be used to calculate system efficiency. I just do not know what those calculations are. I have seen one commercial ...
- 415
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