Recently, I tested the jdrones Arducopter Hexa V2.5.5, stock pids with Rate Roll P = 0.1, Stabilize control P = 3.5, I = 0.01, Imax = 2.000, Trim throttle = 450.
Flight: Stabilize mode

I controlled the hexa using only the throttle stick; No Roll/ pitch movements.

Problem No 1: Hexa tends to move in the backward direction i.e. in case of Hexa-X in the direction of the RC pins as shown in the video https://www.youtube.com/watch?v=UE9QEdZ4PPY&feature=youtu.be

We can say that its the wind but i observed the same problem in an indoor (without wind) gymnasium testing; Anyone got any idea what may be wrong?

Problem No. 2: As a noob RC controller, i was initially flying the hexa with a throttle exponential of -100% ( to have smooth takeoffs and landing) BUT when i changed the throttle exponential to -50 %, my hexa now leans to one side (i lost my two landing gears due to this). What is wrong at the higher throttle exponential?

https://www.youtube.com/watch?v=IKU5dYMm3Po&feature=youtu.be

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Umer, 

    Do you have solution for this problem? I hexa have the some problem. The hexa tens to move

  • Hello Umer,


    on 1.) stabilize does not mean it stays still in one position. You still have to correct the position manually a bit. Real stable only works using e.g. GPS with Loiter.

    on 2.) I have found out that i can fly best not using expo at all. Maybe just connect a standard servo to your receiver and check if your output is linear - alternatively use the APM planner and see your stick responses (without motors armed and also rotor blades removed, for safety) to be linear.

    Maybe this fixes your problem.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @knightsautoteam: Hi @diyrobocars, we are Orlando's first Autonomous racing club and would love your support. We are hosting our first K…
yesterday
DIY Robocars via Twitter
RT @Heavy02011: #VirtualRaceLeague: @DIYRobocars Race #14 - #ParkingLotNerds join us January 15th for #AutonomousRacing #RoboRace ⁦@DAVGtec…
Monday
DIY Robocars via Twitter
RT @chr1sa: And after that came our races, 50 in all. This battle between these two Russians was the best we've ever seen -- incredible fig…
Monday
DIY Robocars via Twitter
RT @chr1sa: Before our @DIYRobocars virtual race this weekend, we had a presentation from the team that won the Indy Autonomous Challenge i…
Monday
DIY Drones via Twitter
Dec 12, 2021
DIY Robocars via Twitter
Dec 12, 2021
DIY Robocars via Twitter
RT @chr1sa: Just a week to go before our next @DIYRobocars race at @circuitlaunch, complete with famous Brazilian BBQ. It's free, fun for k…
Dec 4, 2021
DIY Robocars via Twitter
How to use the new @donkey_car graphical UI to edit driving data for better training https://www.youtube.com/watch?v=J5-zHNeNebQ
Nov 28, 2021
DIY Robocars via Twitter
RT @SmallpixelCar: Wrote a program to find the light positions at @circuitlaunch. Here is the hypothesis of the light locations updating ba…
Nov 26, 2021
DIY Robocars via Twitter
RT @SmallpixelCar: Broke my @HokuyoUsa Lidar today. Luckily the non-cone localization, based on @a1k0n LightSLAM idea, works. It will help…
Nov 25, 2021
DIY Robocars via Twitter
@gclue_akira CC @NVIDIAEmbedded
Nov 23, 2021
DIY Robocars via Twitter
RT @luxonis: OAK-D PoE Autonomous Vehicle (Courtesy of zonyl in our Discord: https://discord.gg/EPsZHkg9Nx) https://t.co/PNDewvJdrb
Nov 23, 2021
DIY Robocars via Twitter
RT @f1tenth: It is getting dark and rainy on the F1TENTH racetrack in the @LGSVLSimulator. Testing out the new flood lights for the racetra…
Nov 23, 2021
DIY Robocars via Twitter
RT @JoeSpeeds: Live Now! Alex of @IndyAChallenge winning @TU_Muenchen team talking about their racing strategy and open source @OpenRobotic…
Nov 20, 2021
DIY Robocars via Twitter
RT @DAVGtech: Live NOW! Alexander Wischnewski of Indy Autonomous Challenge winning TUM team talking racing @diyrobocars @Heavy02011 @Ottawa…
Nov 20, 2021
DIY Robocars via Twitter
Incredible training performance with Donkeycar https://www.youtube.com/watch?v=9yy7ASttw04
Nov 9, 2021
More…