All Questions
892
questions
0
votes
0
answers
3
views
Drone back propellers not lifting it up
This is a second toy drone I got my son because I do not want to spend fortune on a DJI drone if controlling in an issue. It was fine but lately it hasn’t been lifting up. As you can see from picture, ...
- 111
1
vote
1
answer
20
views
Nano drone propeller keep flying off
I got my son a drone for his birthday but less than 24 hours and one of its propellers got lost 3 times and because it’s a nano drone. It is hard to find. I was hoping to find a solution here. ...
- 111
1
vote
1
answer
22
views
Is UART on SpeedyBee F405 V3 a 3.3 volt one or a 5 volt one?
I want to connect SpeedyBee F405 V3 to a Raspberry Pi via UART.
Raspberry Pi uses 3.3 volt for GPIO, so it sounds like connecting a 5 volt UART to it may damage it - and most online documentation ...
- 111
-1
votes
0
answers
50
views
How to decide the diameter of a propeller and number of propellers for uav [closed]
I designing Kamikaze Uav which engine is 20 horsepower and its used propeller with 1220mm. Its too many for my Uav. Sorry for my English.
Fedor
0
votes
0
answers
13
views
Motor phase loss due to fc or esc?
When I plug DC input on esc, the fc won’t boot up, and the 5v output on board is gone.
I can hear a clear sound different from which one is losing phase, and also I tested the resistance of each phase ...
3
votes
1
answer
357
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 ...
1
vote
1
answer
25
views
Indoor GPS or autonomous control Solution
Is there any budget solution to operate a drone indoors? I want to use it with Pixhawk 2.4.8.
As GPS does not work indoors, autonomous flight becomes impossible. So, is there any solution to provide a ...
- 11
1
vote
0
answers
28
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 ...
-1
votes
0
answers
25
views
Coordinated Array of Drones (different makes / models) [closed]
I'm an experienced programmer but a complete novice when it comes to drones. What I'm looking to do is probably not completely legal so consider this question to be hypothetical unless you believe ...
2
votes
0
answers
39
views
Trying to bind xm+ to tx12 radiomaster
Hello I am trying to bind xm+ to a radiomaster tx12 w cc2500 mode inside ive tried rolling back the firmware on the xm+ but to no prevail. Also tied version 2 with frsky x2 (d16) Nothing seems to be ...
- 21
1
vote
0
answers
12
views
Mavic Air Given Up The Ghost?
I have a Mavic Air - Not a Mavic Air 2!
It has now decided that the software cannot link to the RC or Drone - what has happend and how do I fix it?
1
vote
1
answer
59
views
Enhancing antennas to fly from within a building
I have an Ardupilot drone with a 5.8GHz video transmitter - xf5804 which sends video to goggles. Furthermore I have Jumper T18 radio transmitter and Jumper R900 receiver. I would like to be able to ...
- 315
0
votes
0
answers
58
views
Video streaming from drone to multiple Android phones
I have an Ardupilot drone with a 5.8GHz video transmitter - xf5804 which sends video to goggles. I would like to be able to stream my video to multiple Android smartphones in real time (latency of 1-3 ...
- 315
0
votes
1
answer
17
views
Flight properties vs Energy Storage, is it a linear relationship?
I found an interesting drone platform from the brand: Dji Drones.
From the spec sheet found here, I realized it had some limitations... but was curious if were to modify by adding more batteries, ...
- 101
0
votes
1
answer
36
views
Can I connect an action camera with FPV transmitter?
I'm working on a project involving using a quadcopter for surveillance. For that, I need a live video feed, that will be transmitted wirelessly to a ground control system. The live video feed needs to ...
- 3
0
votes
0
answers
16
views
How to reduce fixed-wing FPV wobble?
I've been flying fixed wing and quadcopter FPV for a while, and one problem all the planes have is they wobble or get bumped around by turbulence, even on relatively calm days.
Are there types of ...
- 7,068
2
votes
1
answer
29
views
What should a LiPo's voltage be at full charge?
How can I determine what the voltage of a LiPo should be when at full charge? Specifically, what should the voltage at full charge for a 2200mAh 20c 3-cell LiPo be?
- 23
0
votes
1
answer
76
views
What is the best way to transmit real-time-video with the minimum latency and the maximum range?
I'm trying to create a drone that will mount this infrared camera Kuman Pi 5MP and will have as controller a raspberry pi zero 2w.
So the main thing is that I want to send the video captured with the ...
0
votes
0
answers
6
views
How to set up Spektrum wireless buddy-box in Pilot Link mode?
Spektrum's wireless buddy-box trainer is very nice, but how do you set it to use Pilot Link (where only the stick positions are read from the student)?
On the instructor's DX8, we set it to 'Pilot ...
- 7,068
0
votes
0
answers
17
views
How to use GY-86 i2c module (MS5611 baro and HMC5883 mag) with MAMBA F405 MK2 in iNav?
I soldered this module to Mamba F405 by I2C pins. It worked successfully with Betaflight but is not working after I installed iNav 6.0.0 (battery is connected).
I see red baro and mag icons in ...
- 187
0
votes
1
answer
39
views
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 ...
- 3
0
votes
0
answers
15
views
Drones location Beacons over 2.4GHz, flight ID regulation
Two Questions:
First one: Does the general use drones (like DJI products) are mandatory regulated to transmit its location & control's location or Drone ID as beacon over Wi-Fi, BLE or SDR link?
...
- 101
2
votes
2
answers
40
views
IMU Redundancy from different IMU models
I've noticed that a lot of flight controllers have multiple IMUs and Barometers, which makes sense from a redundancy standpoint. But the interesting thing is that they use different models of IMUs. ...
- 121
0
votes
1
answer
28
views
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 ...
- 11
0
votes
1
answer
66
views
How to calc the best center of gravity for quadcopters?
Usually it is recommended to balance the quadcopter drone in order to have the center of gravity in the center of the drone body, but this choice seems with the assumption the drone thrust is just ...
- 225
0
votes
0
answers
22
views
Is a recreational drone operator considered remote pilot in command?
A drone pilot flying under part 107 is referred to as "remote pilot in command." Does this term also apply to someone operating a drone under the exemption for recreational flyers?
- 175
1
vote
1
answer
24
views
ESC Powerbehavior when throttling up or down
for my flight control system I want to track my motor rpm (more or less to feed orientation estimation with thrust and moments).
I wrote a simple class based on following formula
$$ \dot \omega = \...
1
vote
0
answers
26
views
How Carbon-Nylon propellers compare to other materials
Carbon fiber propellers consensus seems: more precision but lower flight time compared to common plastic propellers.
But... what about Carbon-Nylon composite propellers that are basically made in ...
- 225
0
votes
1
answer
25
views
How to check whether receiver is damaged?
I am a beginner. I have bought RadioMaster TX12 and turned it on without an antenna and with an extra module for 915mhz for 1 minute. Internal RF was not off. How can I check whether something got ...
1
vote
0
answers
15
views
JST-PHB does not seem to exist?
I am trying to find connectors with 2 pin rows and a lock mechanism and 2mm pitch.
The only source I can find them are chinese sellers, and they label them as JLT-PHB, however, looking through the ...
1
vote
0
answers
28
views
Is there 3D printed PLA propellers efficiency comparison?
I have seen many tests about the resistance of PLA 3D printed propellers, and they are very strong and able to withstand a considerable high RPM level, not really a surprise considering that the weak ...
- 225
0
votes
1
answer
28
views
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 ...
1
vote
0
answers
18
views
Is there is a need to continously send command via DSHOT protocol?
I am building a flight controller and was implementing the Dshot protocol for esc communication. What I could not find is that if you need to send the data frame continuously to the esc. Because when ...
- 11
0
votes
1
answer
29
views
How to calibrate DIY Brushed ESC powered by 3.7v
I build a DIY Arduino drone. I also build a working DIY brushed ESC. I use 720 DC brushed motor. Let me please inform you that the min Throttle and the Max Throttle not working as expected.
Min ...
-1
votes
1
answer
52
views
Brushless motor runs for 10 seconds and shuts down
I armed the ESC and set the throttle and the motor spins up for about 10 seconds. However, it is slow and then shuts down. After turning the throttle back down and then back up the motor starts again. ...
0
votes
0
answers
13
views
confusing ESC Sound as soon as i move the sticks on transmitter
there is this confusing sound which pops out of the esc as soon as i move the sticks on the transmitter. This never happened before. Normally when i plug in my battery there appears a sound but this ...
- 21
1
vote
1
answer
25
views
Receiver and transmitter issue
I am trying to build a drone from scratch. I purchased Fly Sky FS-CT6B 6 transmitter. but unfortunately the receiver is not supporting PPM communication. I am using pixhawk 2.4 as flight controller.
I ...
- 11
0
votes
0
answers
20
views
Nitro to Electric Conversion
Attempting to convert a ThunderTiger Ready MkIII nitro to electric.
Manufacturer recommended engines are:
Thunder Tiger Aircraft Engine GP-42:
1.10 BHP @ 14,000 RPM, 357.2 g / 12.60 oz., 6.90 c.c. / ....
- 101
0
votes
0
answers
26
views
can I use PiSBUS with python
is it possible to use PiSBUS library with python?
I know you can use it programming with Arduino IDE or something similar, but is it possible to use it with a Raspberry Pi and python?
Link to the ...
0
votes
0
answers
16
views
Is it possible to connect security IP camera by wired connection to drone's flight controller and transmit this video by VTX?
I'm seeking for camera that I can use on gimball of my selfmade drone. This variant https://vi.aliexpress.com/item/1005003252272933.html looks as ideal solution but I'm not sure that I can use it with ...
- 187
0
votes
1
answer
20
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?
...
2
votes
1
answer
124
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 ...
1
vote
0
answers
23
views
I'm building small solid rocket motors, and I'm having difficulty developing sufficient power [closed]
I'm building these motors from a combination of directions from WikiHow and the King of Random... for fuel, I'm using Potassium Nitrate (KNO3) and Sugar, in a ratio of 2:1 by mass. The casing is built ...
- 111
2
votes
1
answer
29
views
How 70C 2Ah batteries can have XT60 connector if it rated only for 60A current and not 140A?
Can it fit higher currents than nominal? Is it safe?
- 187
1
vote
0
answers
16
views
How to understand "continue current" parameter of drone motor?
I installed to drone four motors which has continue current parameter of 30A. So, I assume that my drone should take 120A from battery, but maximum value that showed in my goggles is 7A.
So, how does ...
- 187
1
vote
1
answer
50
views
Can be ESC connected to battery directly if PDB has not enough power?
I want to use FC Matek F405-TE http://www.mateksys.com/?portfolio=f405-te#tab-id-4 but it's PDB allow only 35A of ESC. I want to use 50-60A ESCs (motors are 40A each) with this controller.
Can I ...
- 187
1
vote
1
answer
43
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 ...
- 111
1
vote
2
answers
141
views
How much amperes should ESC have?
How to choose power of ESC? Manufacturer of motors said that maximum amperes for this motor is 40A. Does it mean that I need to put separate 40A ESC for each motor or 160A 4-in-1 ESC? How to choose ...
- 187
1
vote
1
answer
182
views
How do i make 2 Cetus X Drones use different frequencies, so I can fly them at the same time?
Me and my friend both have a Cetus X Drone.
We want to fly them at the same time, however both the video and the controller signal interfere.
As a controller I use the BetaFPV LiteRadio that came with ...
- 13
0
votes
1
answer
41
views
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/...
