Questions tagged [flight-controller]

The electronic component responsible for controlling a drone or model aircraft based on inputs from the receiver and outside forces acting upon the drone or model aircraft.

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Claw using brushed ESC in conjunction with brushless ESC on Kakute H7

For a challenge, my club and I have been building a drone with a claw on the bottom. We found a good lightweight claw, but it uses an N20 Geared brushed motor. We have a brushed motor ESC(Quicrun 1625 ...
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1 answer
148 views

Betaflight and Mamba F405 mk2: no gyro after flashing the FC

I flashed my Mamba F405 into latest firmware by Betaflight Configurator and gyro is not working after this. Everything was OK on the dafault firmware but now it don't work on any. How to fix it? Did ...
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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 ...
1 vote
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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
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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 ...
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1 answer
208 views

Raspberry Pi 4 between flight controller and receiver

I have TBS Crossfire Micro TX, Nano RX and Raspberry Pi 4, I haven't bought a flight controller yet because I have a problem: Until the drone receives a special command from the transmitter - I ...
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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? ...
1 vote
1 answer
49 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 ...
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1 answer
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How much current can float through all pads of the PDB (Power distribution board)?

I want to buy the „PDB-HEX, 12S“ Power Distribution Board. Are the current values of PDB/current sense resistor and ESC power pads meant for the summarized current of all motors or for each Motor? Why ...
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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 ...
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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 ...
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1 answer
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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 ...
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385 views

How to add custom betaflight code to obtain data from I2C device and pass to OSD?

I successfully obtained data from my I2C device in Arduino: ...
2 votes
2 answers
205 views

Which setup for tilting rotor quadcopter?

I'd like to build a quadcopter with rotors that can tilt to increase the drone's flexibility. So far, I have only used a KK 2.1 board as a flight controller which doesn't really have this capability ...
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183 views

Pinout Wiring of f4 v3s plus flight controller

I have a f4 v3s Plus flight controller. I want to wire it to a 4-in-1 ESC using micro JST connectors. There are 8 pins in my flight controller and 7pins in my ESC board. I understand that there is one ...
1 vote
2 answers
100 views

Should I physically solder the components to the flight controller, or should I solder the quick disassemble connectors? How is the community do it?

Should I physically solder the components to the flight controller, or should I solder the connectors so I can disassemble the model? Which type of connectors can I use? I plan to use XT60 for motors ...
1 vote
0 answers
63 views

How to use odometry provided by external Raspberry Pi device on Matek F405-WMN with Ardupilot?

I build device based on raspberry pi that calculates odometry for navigation without GPS. Now I want to test it in real conditions on drone. How can I do it in Ardupilot? RPi calculates current ...
1 vote
1 answer
261 views

How to connect TBS Crossfire nano rx to Matek F405-WMN?

How to connect crossfire nano rx to FC Matek F405-WMN? I don't see commands receiver connection on the wiring diagram http://www.mateksys.com/?portfolio=f405-wmn#tab-id-4 Is it possible to connect two ...
0 votes
1 answer
219 views

To which device should the fpv camera be connected: flight controller or video transmitter?

I have FC Matek F405-WMN and 5.8GHz transmitter TBS UNIFY PRO32 HV. The F405 wiring diagram (http://www.mateksys.com/?portfolio=f405-wmn#tab-id-4) shows that two cameras can be connected to it. But I ...
4 votes
1 answer
1k views

What's the purpose of airmode and idle up?

What are airmode and idle up and what do they do improve my freestyle flights?
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how to replicate motor signal from flight controller among multiple motors?

i would like to build a tailsitter and fly it with a flight controller such as ardupilot. ardupilot seems to support single/dual airplane motor configurations, or standard copter rotor layouts. ...
2 votes
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57 views

Why new/recommended MEMS IMU for AHRS for drones are 6-DOF instead of 9-DOF?

I'm developing an quadcopter as an DIY project. I'm in nascent stage of development. I've just finalized the design/working philosophy. I'm planning to fuse data from 9-DOF (9-Axes) IMU + GNSS + ...
1 vote
1 answer
37 views

Is my FC for regular rc planes or for drones with multiple props?

recently I decided to build a drone. While I'm learning everything I picked a FC. While researching about the FC I'm not sure if I picked the right one. https://www.alibaba.com/product-detail/2023-New-...
6 votes
4 answers
2k views

What's the difference between F4 or F7 flight controllers?

What is the difference between the STM32F411 and the STM32F722RET6 processors in flight controllers? What are the advantages of having the F7 processor over the F4 processor?
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Connecting a RS232 sensor to the Pixhawk

I have an airspeed sensor that outputs a RS232 signal. This is the sensor: https://www.aeroprobe.com/micro-air-data-system/. I want to connect this sensor to the Pixhawk in order to use the data for ...
3 votes
2 answers
5k views

How to use real DJI controller in simulator

I've got a DJI Mini 2 and I'm aware their official application (DJI Simulator) does not support it. Anyway, I wonder if I can use the real Mini 2 controller in any third-part simulator. I'm more ...
1 vote
2 answers
96 views

How to choose a flight controller for my DIY drone?

I am assembling a drone. So far, I have learned that it is 450mm. I'm using 8 to 12 21700 Li-Ion batteries. When I search for AIO flight controllers, I believe I have to search for "30A" and ...
6 votes
1 answer
2k views

Wiring a 4-in-1 ESC to an Arduino Uno

I have four brushless motors that I want to control using an Arduino Nano. I was looking at getting a 4-in-1 ESC controller similar to this one on amazon. At this point in my project, I'm more ...
2 votes
3 answers
105 views

What kind of drone could be remote controlled over 4km of open water?

Aparently Taiwan shot down a civilian drone near the Lion islet of the coast of Xiamen (source). The island is 4km away from the Chinese city of Xiamen. Question, what kind of drone would be able to ...
1 vote
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20 views

Location of Flight Controller in drone (PX4 specific)

I have a question for experienced users of PX4. Can the flight controller be placed anywhere in the drone, as long as it is pointing in the right direction and the calibration is made in the correct ...
0 votes
1 answer
184 views

Can I use BAT and GND pads for wiring BetaFPV SMO4K?

I'm trying to wire BetaFPV SMO4K camera to my IFlight Evoque F5D which uses BLITZ F7 Stack (F7 V1.1 + 55A 4in1 ESC) stack. Official SMO4K manual suggests connecting camera power cable to ...
4 votes
2 answers
344 views

Drone which can be controlled via 4g network

Hello everyone pls I want to know if a drone can be controlled via a 4g network. Using 4g towers. This could be beneficial in sense that, it can be remotely controlled from anywhere. Also transmitting ...
5 votes
1 answer
490 views

Control a servo through the flight controller PPM output and a ppm to pwm card

I have a quadcopter on which I want to connect a servo, I bought a ppm to multiple PWM converter to connect on the flight controller PPM output, but I don't find how to tell betaflight to control the ...
5 votes
3 answers
855 views

Can "toy" drone FC firmware be tweaked?

Can the flight controller of cheap "toy" grade quads, such as the Blade Inductrix, be programmed at all? I'd assume that even if it's possible, it wouldn't be practical. I don't have any ...
2 votes
0 answers
31 views

Custom flight mode in pixhawk flight controller

I am trying to convert a pixhawk drone into a quadrotor biplane tailsitter. Is there a way to create a transition flight mode where a motor pair will lower its RPM for a while until the drone's axis ...
1 vote
0 answers
95 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 ...
3 votes
1 answer
122 views

Help getting this flight controller to work with this receiever

I am working on building a drone. I have the DJI NAZA M LITE flight controller, and this receiver. The pinout for the battery and ESCS is pretty clear, but I'm not sure how I should go about ...
4 votes
0 answers
64 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 ...
3 votes
0 answers
218 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 ...
5 votes
1 answer
183 views

Can I use a quadcopter AIO FC (or stack) to control a micro helicopter via Arducopter or iNAV?

I have found a lot of resources on building your own quadcopter(drone)...but none on micro helicopters. The only helicopter resources I have found were large model helicopters. However I want to ...
3 votes
3 answers
407 views

How to program drones that have old flight controllers?

I have a few components of drones like some old FCs and old ESCs and I don't want them to go to waste. Is there any way to configure a drone that I built with those parts, as I don't think the FCs are ...
1 vote
1 answer
105 views

How to program a flight controller?

I am using a HolyBro Kakute F4 V2 flight controller loaded with ArduPilot firmware. I am using Mission Planner currently. I wish to know how can I program the board so that I have some additional ...
5 votes
6 answers
1k views

Drones capable of smooth plane/bird-like flight

Multirotors are small rotorcraft with flight dynamics which result in an unnatural "flight experience". Are there multirotor autopilots which would be able to simulate a more "natural&...
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What should I do if the radio and micro receiver don't run on the same protocol?

I recently got started on FPV and I got a cheap Tyro 69 toothpick and a Flysky fs-i6 radio, but the micro receiver won't bind to the radio, should I get another micro receiver that run on ibus, or buy ...
5 votes
2 answers
254 views

Will different brushless motor sizes work with the same flight controller and esc

I recently built a 5-inch quad using: Diatone Mamba F405 Mk2 F40 Mk2 3-6S 30x30 Stack/Combo (F4 FC / 40A 4in1 ESC) Motors: iFlight Xing-E PRO 2207 1800Kv Motor with DShot 600 and 4S battery cell. I ...
3 votes
0 answers
138 views

How can I read the recording status of a Runcam Split 4 through UART?

I am working on a project where I need to interface with a Runcam Split 4 using its UART protocol. You can find the protocol documentation here I am able to get info about the device features through ...
5 votes
1 answer
2k views

FC won't go into boot mode

I can't get to get my FC (a JHE MCU F722 BT dual) into boot mode. I have tried: under Linux (pop-os 21.04) and win 10 pressing the boot button when powering it up via USB entering DFU mode via ...
4 votes
1 answer
135 views

Choosing ESCs for an Autonomous Drone

I'm about to build my first drone. I chose the PixHawk 4 with PX4 as a flight controller and the Raspberry Pi Model 3B as the companion computer. I am not sure about the ESCs yet. So far I'm ...
4 votes
0 answers
84 views

Can I use an RX6R's PWM and SBus outputs simultaneously?

I'm looking at options to build a pan/tilt system for FPV. The FC that I have available has only 4 servo outputs, and the airplane has 3 servos. Given this, I can't run the pan and tilt through the FC....