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I have a design for powering four motors, could someone verify that it will work as I planned?

My question: This is a simple design that I have created using everything that I know about electronics so far. Is there anything missing in my design or are there any concepts which I have ...
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1 vote
1 answer
19 views

Can poor soldering of ESC wires lead to low voltage draw from a Lipo battery?

Question: Would improper soldering of the power wires of my electronic speed controller limit the amount of voltage that my ESC draws from the Lipo battery? My situation: I have to solder an XT60 male ...
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0 answers
6 views

Compass stick calibration: no "beep"

Could anyone help me? I've build a long range 7" quad with Matek F-405SE FC. I've successfully instal INAV 5.0 firmware. It works like a charm, but the only confusing point(besides unexpected RTH ...
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  • 1
2 votes
1 answer
25 views

Access drone footage over WiFi

I have a drone (E520S) which transmits its video footage over WiFi to an app (eachine pro) and I was wondering if I could view the footage without using the app or learn how it is transmitted.
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3 votes
1 answer
33 views

What is this pad on the HappyModel EP2 2.4G ExpressLRS Receiver?

I have soldered wires to "HappyModel EP2 2.4G ExpressLRS Receiver". There is one pad I don't know and can't find what it is for. See the pic "EP2 RX connection diagram". The ...
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1 vote
2 answers
31 views

Amperage of FC, ESC

There is something I totally don't understand about an amperage. According to spec. AIO FC has 5 A and 6 A ( 5 seconds). However, sometimes I see in OCD far beyond 5A and 6A. And FC, ESC are OK. ...
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2 votes
2 answers
29 views

Motor voltage, kv, and battery weight saving

I would like to ask abt motor and prop size and efficiency. So I was thinking to get either some 2203.5 motor with 1600kv wingspan of about 1,6m and 16x5 prop(prop lenght of 25%of wingspan), however ...
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  • 21
2 votes
1 answer
40 views

Rewiring 2S2P as 4S

I have LiPo battery that is in 2S2P configuration, however I need higher voltage (4S) battery for my project. From my understanding 2S2P battery has 4 cells same as 4S (2 in series and 2 in parallel). ...
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  • 123
1 vote
0 answers
24 views

Bidirectional DShot not working after 5 beeps (BLHeli_32)

I have a 4in1 ESC (Mamba 45A 96k) with BLHeli_32, my FC is running Betaflight 4.3. Since the last crash one ESC only works with normal unidirectional DShot. As soon as I enable bidirectional DShot, I ...
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3 votes
1 answer
39 views

Proper procedure for collective-pitch RC helicopter autorotation

I intend to get a collective-pitch RC helicopter in the future; in the meanwhile I purchased an imitation radio with USB connection and AccuRC to practice in my PC to gain some experience. I've gone ...
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  • 131
2 votes
2 answers
21 views

PhaseOne iXM-100 IIQ to JPG

I was given some PhaseOne iXM-100 .IIQ photos and I need to convert them into .jpg format. The iXM-100 was used with a DJI drone,...
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  • 143
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0 answers
13 views

Flysky receiver blinking slowly after binding

I have a flysky receiver which I have already bind to the remote. Today u was doing a range test. When I connected the rx to tx it connected securely but after moving few distance away from the rx, ...
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  • 11
-1 votes
0 answers
67 views

Identify unwanted drone

Sometimes during night a drone is hovering near my windows, especially while we are sleeping or my wife is breastfeeding our daughter. You can imagine how happy she is having a stalker recording ...
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-1 votes
0 answers
12 views

Motor Pad As Active Servo

i intend to develope an active servo as suspension on my rc car. my idea was when the car moves, the gyro will detect and moves the servos to counter the absorber. (4 servos) how to replace the action ...
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0 votes
0 answers
28 views

Mini 3 Pro Legal in Mexico?

I'm getting confusing information regarding taking my DJI Mini 3 Pro drone to Mexico. Can anyone clarify if non citizens can fly sub 249g drones without red tape?
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  • 101
1 vote
1 answer
23 views

Esc beeping on first channel

I have a Flysky fai6s transmitter which I used to control my ESCs. When I put the wires of the ESC on channel 1 of the receiver the ESC starts beeping, but on other three channels it works fine. I ...
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  • 11
2 votes
1 answer
41 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?
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  • 161
1 vote
2 answers
32 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 ...
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  • 161
0 votes
1 answer
14 views

Generic Brushless motors equivalence for calculations with ecalc

The ecalc website is very useful to do estimations for models, however I haven't found how to choose correctly the motor options for generic brushless motors like these In motor choice option there ...
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  • 161
3 votes
1 answer
42 views

Aside from the question of cost, is there any other reason why the cellular network is not used for drones (apart rare exceptions)?

Nowadays cellular networks offer very fast connection and have very high coverage of the territory and in most countries areas out of coverage are uncommon. So, I would assume a drone that use ...
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  • 161
1 vote
1 answer
34 views

RC Airplane Fuel Tank Issue

I am using a RC Fuel tank which looks like: Is there anything special about the cap? The problem is I opened the cap. Should it never be opened? There are a few drops that leak in intervals when I ...
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  • 13
0 votes
0 answers
19 views

How do those cheap drone camera apps work?

I have a cheap drone, and I was wondering how the inner software works. Mine works like any other cheap drone camera/ufo apps work (Connecting to the drone's wifi and you launch the app when you do ...
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1 vote
0 answers
23 views

Are there any high-fidelity open-source drones?

Are there high-fidelity open-source drones out there? We're looking for some models-- aka digital twins-- to run through some simulation models, in order to analyze them for full system performance. ...
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  • 1,842
2 votes
1 answer
64 views

DJI Mavic Pro Navigation System Error, After Crash

After repairing my hardly crashed Mavic Pro, I encountered this error: "Navigation system error, check redundancy state", and here's what I did to clear out this error: IMU calibration ...
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  • 21
0 votes
0 answers
12 views

Import Cinema 4D produced animation as a mission plan

I'm looking for a way to convert animation paths and features that I created in Cinema 4D to something that Ardupilot can understand and import as a mission plan. Is there anything out there for this ...
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  • 101
2 votes
0 answers
40 views

How to calculate roll and pitch from an accelerometer in whatever orientation?

I’m trying to use a tri-axial accelerometer as an inclinometer, measuring the so called roll and pitch angles. The underlined principle is that in stationary conditions an accelerometer senses only ...
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1 vote
2 answers
42 views

FPV System recommendations

Here are my desired specs for an FPV camera - let me know if they are impossible: 5.8 Ghz Digital rather than Analog, for less interference/artifacts? CCD instead of CMOS, because a global shutter ...
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2 votes
1 answer
40 views

How to know current image bands?

I work with sets of images from sensors such as: DJI P4 Multispectral DJI P4 PRO MicaSense RedEdge-MX MicaSense RedEdge-P Then I extract attributes from the images. For this, I need to know the ...
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2 votes
1 answer
32 views

Can additional meta information be automatically stored with DJI-mini-2 images

When a dji-mini-2 drone makes a photo, is it possible to automatically store the information that the drone clearly knows at the time of snapshot. For example: lat/lng of the location height of the ...
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0 votes
0 answers
8 views

PIXHAWK 2.4.8 | EMAX Formula Series 45A ESC | No motor is rotating

I'm building S550 Hexacopter from a combo kit. I've made all the connections correctly. I've calibrated the ECS individually & motors run without any issues. But when I arm the drone to test all ...
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  • 1
1 vote
0 answers
24 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 ...
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1 vote
0 answers
64 views

Looking for a drone with Microcontroller

I am looking for a drone with a microcontroller, that I can access (preferably Raspberry PI). In my research, I found plenty of drones with an API (for example DJI Tello), but I could not find one, ...
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4 votes
0 answers
31 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 ...
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  • 191
3 votes
0 answers
54 views

BLHELI32 DShot600 or DShot150 is not activated in my ESCs from my code written in c c++ in testing with 3 different ESC

My question is more related to inner working of ESC than coding. Particularly how to activate a particular protocol like DShot600 or Dshot150. Assuming a generic BLHELI ESC has all these protocols. I ...
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  • 31
1 vote
1 answer
40 views

Flying regulations vs recreational drone range

I'm trying to figure out how balanced are drone flying regulations (say, in the EU) when compared against the range most small modern drones offer right out of the box. From what I can tell a drone ...
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  • 111
3 votes
1 answer
40 views

Are ultrasonic sensors good for obstacle detection?

I am trying to fit front looking ultrasonic sensor for object detection in my small drone. It will be an outdoor drone and I want to build a reliable system to detect objects and avoid collision. How ...
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  • 31
3 votes
1 answer
52 views

Advice on correct linkage to use to rotate motor mount

I'm designing a VTOL based on a conventional airplane design that will use a tilt-rotor to move the motors 90 degrees around a carbon fibre tube that also acts as the wing spar. Each motor is tilted ...
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  • 191
1 vote
0 answers
32 views

Calculate the total energey required to fly drone

How much energy will drone batteries consume if I have the following inputs, By using provided GPS flight path data I've calculated total horizontal distance using Haversine formula, and multiplying ...
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0 votes
1 answer
42 views

Can a push-prop model plane use control surfaces forward of the propeller, but which do not extend beyond the perimeter of the propeller's swept area?

While reading about various drone airframe configurations, in particular the trade-offs between various wing designs, I thought of a propulsion and control pairing which I have yet to find in the ...
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  • 41
2 votes
1 answer
42 views

Can I use a 1.5 amp 5v or 12v supply to power the esc and cd rom brushless motor?

I'm new here on the site, and I want to start the cd rom motor you see in the image below: but can i use a 1.5amp 5v or 12v supply to power the esc and start the cd rom brushless motor? the source of ...
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  • 21
1 vote
1 answer
55 views

Drone recommended for quality shooting but for non-experts

I would need to buy a serious drone to make quality videos and footage. However, searching online there is a lot of stuff that is passed off as "better than others". Could someone recommend ...
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  • 13
0 votes
2 answers
39 views

Taranis x 7 will not turn on

Hey guys I'm having a issues with my transmitter when i press the power there is a click from speaker and nothing happens after. I tried also press the bottom two left and power at the same time, same ...
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  • 1
4 votes
1 answer
80 views

In the United States, what are the legal distinctions between a rocket powered RC plane, an actively stabilized model rocket, and a drone?

Model rockets launch and fly autonomously, and can be either actively or passively stabilized. Their powered flight is generally confined to vertical trajectories. Drones fly predominantly horizontal ...
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  • 41
0 votes
0 answers
35 views

How to calculate the ESC and the LiPo?

I would like to know how many amps the ESC needs in order to use my brushless motor, and also which LiPo battery I'm going to need. I want the know how to calculate this, so that I can do it myself ...
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0 votes
1 answer
34 views

How can I use a Pixhawk 4 power distribution board (PM07) to power an older pixhawk?

I have the PM07 power distribution board designed for the Pixhawk 4 but I currently have a Pixhawk 2.8.4. On the data sheets I can clearly see a 5V output but I am not getting any power from those ...
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  • 43
2 votes
2 answers
297 views

How does the Switchblade 300 drone maneuver?

I was wondering how the Switchblade 300 drone (https://www.avinc.com/tms/switchblade) is able to maneuver? On all photos I can find, there is no sign of any ailerons - so does it wiggle the wings at ...
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0 votes
0 answers
13 views

What is lighest possible octa copter frame?

I am building a octacopter which produces thrust of around 4.8kgs (2200kv motor with 8inch prop, I checked single motor thrust on weigh scale, i got around 750gms on full throttle so I am assuming ...
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0 votes
1 answer
44 views

Radius of drone when hovering in circles

According to Energy Minimization for Wireless Communication With Rotary-Wing UAV, it is better to fly in circles than to hover at a single place (if hovering is required). Flight requires less power. ...
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  • 143
3 votes
2 answers
79 views

How to dispose of a burnt lipo battery?

It caught on fire while charging. I am not sure if it is fully "discharged" =] Is it safe to soak it in water first?
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  • 131
2 votes
1 answer
39 views

Finding new props that will fit

I have an old wifi drone with 2-blade props that I would like to upgrade to 3-blade props, but I'm having a hard time finding any that will fit my drone and I'm not familiar with the different methods ...
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