MultiWii release 2.1 is here :)

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Alexinparis
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Joined: Wed Jan 19, 2011 9:07 pm

MultiWii release 2.1 is here :)

Post by Alexinparis »

http://code.google.com/p/multiwii/downloads/list

with the relevant change.txt

Code: Select all

2.0 -> 2.1

Some things everyone should be aware before upgrading to this version.

  WMP and NUNCHUCK are no longer auto recognized.
  You must explicitly declare them (or just WMP) in config.h

  Pullups are now undefined by default
    (think about activating it if you use a WMP only conf)
  LCD is not activated by default

  Failsafe is not activated by default

  VBAT monitoring is not activted by default

  There is no more .pde files
  You must use Arduino 1.0 or greater to compile the sketch (and open Multiwii.ino)

  If the GUI does not work on your setup,
    try to deactivate hardware acceleration for your display board
    or use an alternative GUI like WinGUI

  MultiWii is not a product, nor a plug and play solution.
  Don't expect to buy a compatible board and run it without a minimum knowledge.


Receiver part
  OpenLRS Multi board support done
    This is a board including an OpenLRS receiver where the atmel
    is used also to run multiwii code.
    more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1438


Multiwii Serial Protocol
  It's a new protocol to communicate with the FC
  It was introduced by me and tuned by Tommie
  It's a huge change, but it should ensure a generic way to communicate with the FC
  which is less dependant to version evolutions.
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1516
 
  Now, there is no mod to multiwii code if we want to add a GUI/OSD/conf tool/...

  Compatible GUI:
   open source code, compatible with the new serial protocol:
    WinGUI from EOSBandi, which is fully equivalent with the original one,
     with a better look
      more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1229
    mwGui from kos
      more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1791
    Android ones via serial bluetooth:
     - adding a bluetooth module to multiwii
       more info here: http://www.multiwii.com/forum/viewtopic.php?f=6&t=133
     compatible apps:
      https://play.google.com/store/apps/details?id=net.xrotor.andmultiwiiconf
      https://play.google.com/store/apps/details?id=net.loide.games.bicopter
      https://play.google.com/store/apps/details?id=com.naze32.configurator

  Compatible OSD:
    open source code, compatible with the new serial protocol
    Rushduino:
      more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=922
    mobiDrone:
      more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1498

LCD config
  OLED display
    thanks to contributions of howardhb and Hamburger
    more info here: http://www.multiwii.com/forum/viewtopic.php?f=7&t=1350

  VT100 terminal type addition
    thanks to contribution of Hamburger
    more info here: http://www.multiwii.com/forum/viewtopic.php?f=7&t=1096

  A multiline option is added to allow the configuration on more than 2 lines
    useful for displays like OLED or VT100

  We have now a lot of possibilities regarding LCD:
    SERIAL3W : original 2x16 line from Sparkfun
    TEXTSTAR : Cat's Whisker LCD_TEXTSTAR Module CW-LCD-02
    VT100 : vt100 compatible terminal
    ETPP : Eagle Tree Power Panel LCD
    LCD03 : an i2c LCD
    OLED_I2C_128x64

New proc: ATmega32U4
  Thanks to the work from ronco.
  This proc can be found in the Arduino pro micro board, or Teensy 2.0
  The Pro Micro is similar in size to the Pro Mini except it has a ATmega32U4 on board.
  The USB transceiver inside the 32U4 allows us to add USB connectivity on-board.
  ronco also designed a custom board named nanowii.
  One of the smallest 6DOF Multiwii board with usb, which can be now purchased.
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=6&t=1337

Servo:
  Higher refresh rate:
    Some servo (mostly digital ones) can work with a higher frequency than 50Hz.
    The benefit to use a higher refresh rate is a sharper response.
    ronco adapted the code to make this frequency configurable
    more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1644
  Hardware PWM output:
    On MEGA boards, it's now possible to drive the gimbal servos with
    a 11-bit PWM servo resolution. Thanks to ronco.
    The hardware PWM output ensures a jitter free response.

LED flasher
  A way to set a flash LED sequence from Tommie
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1505

Throttle expo
  There is now another curve in the GUI to configure the Throttle expo.
  It's a way to smooth the throttle stick response around the hover point.
  In order to help the setting, there is a small cursor in the graph to show
  where is the current throttle input.

ACC LEVEL improvement
  The LEVE mode is improved since 2.0 thanks to new choice of
  other complementary filter coefficients and a floating point low pass filter

Headfree checkbox:
  It's possible to reset the headfree direction while flying via a checkbox.
  thanks to Tommie

Sensor:
  MPU6050: there was a bug which prevents using the gyro LPF. correted now.
  SONAR: I2C sonar SRF0x code was added but is not currently used.
  HMC5883 axis calibration factor was added
  NUNCHUK is fusioned with ACC in GUI
  many new boards was also added in config.h file

Internal code:
  - the Serial part uses now less RAM (thanks to Tommie first mod)
    RX/TX buffers are smaller than before.
  - EEPROM parameters are stored in a struct, and are written in the
    EEPROM in a single step.
  - MAG declination was added by EOSBandi, to have more accurate orientation.
    In some countries, it's really mandatory to set this variable right,
     otherwise it's impossible to use GPS.
  - Flag var was introduced for global boolean type variables.
  - Hamburger introduced some "copter exemple" in order to check
    if compilation is ok. (should be a way to remove some trivial bugs)
  - code style (indentation, variable naming convention etc.) started
  - GUI requires new ControlP5 library to compile
  - interval variable activate[] is now 16 bit long
  - new config.h structure

GUI:
  - thanks to Danal, there is now the PIN number and the propeller direction
  drawed in the graph representation
  - thanks to kos, we can now load and save parameters into a file
  - there is now a reset button to set all parameters to default
  - there is now a GUI visual feedback on all states (checkbox items)

GPS code:
  Thanks to the work of EOSBandi, we have now a working GPS code !
  The navigational routines are based on the works of Jason Short
  and the Arducopter team (another great open source project).
  EOSBandi adapted it to multiwii.
  basically, there are 2 main options for GPS: SERIAL option and I2C option.

    - If you have a spare serial port AND an AtMega1280 or 2560 microcontroller
    based FC, you can connect your GPS to that port and enable the serial GPS
    code in the code.
    Patrick introduced a way to switch automaticly between GUI message parsing
    or NMEA message parsing on the same Serial port
    (useful for promini because you can use the same port for GUI and GPS
    in an exclusive mode)
   
    - You can use an I2C_GPS board, which contains a secondary AtMega328 processor
    with a serial GPS and runs the GPS parsing and navigational computations.
    This board communicates with the FC via the I2C bus.

  more info here: http://code.google.com/p/i2c-gps-nav/downloads/list
  and here in this huge post: http://www.multiwii.com/forum/viewtopic.php?f=8&t=649

  There is also a specific GPS_FROM_OSD option:
    it's a way to use the GPS device of OSD to feed Multiwii with GPS data
    MIS OSD uses this functionality

ESC calibration
  experimental
  It's a special #define which allows to calibrate all ESCs with exaclty
   the same signal.
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=13&t=1517

Telemetry
  new telemetry manual stepping mode

Arming option
  configurable TX stick combos for arm/disarm
  this way, it's possible to arm/disarm the multi via:
    - one AUX switch like before
    - YAW stick and/or ROLL stick

AIRPLANE mode
  experimental, more info here:
  http://www.multiwii.com/forum/viewtopic.php?f=8&t=364
  https://code.google.com/p/multiwii/wiki/MWiiAirplane

HELICOPTER mode
  experimental
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1562

Dual & Single copter
  experimental
  more info here: http://www.multiwii.com/forum/viewtopic.php?f=8&t=1882

VTAIL mode
  motor rotation has changed:
  Front Left & Rear Right: CCW, Front Right & Rear Left: CW , YAW_DIRECTION=1

An attempt to improve the documentation via wiki
  wiki from googlecode:
   https://code.google.com/p/multiwii/w/list
  wiki from multiwii.com
   http://www.multiwii.com/wiki/index.php?title=Main_Page
  We all know the overall documentation is still to improve :)


I hope this version will animate a lot of multi in the air :)

signal15
Posts: 37
Joined: Sat Jun 23, 2012 8:44 pm

Re: MultiWii release 2.1 is here :)

Post by signal15 »

Sweet!

When I upgrade, is it going to erase all of my PID settings?

Also, will I have to retune my PIDs at all?

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EOSBandi
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Re: MultiWii release 2.1 is here :) and WinGUI 2.1 too

Post by EOSBandi »

Thank You Alex and all other developers who worked on the code! This version is a giant leap compared to the pervious release.

To put some toppings on the cake, I'm also releasing the 2.1 version of the WinGUI.
Detailed training video for WinGUI also will come soon.
You can download WinGUI 2.1 from here : https://code.google.com/p/mw-wingui/downloads/list

And if you missed it, the 2.1rc version of I2C-GPS code also released. Updated documentation will follow soon.

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Hamburger
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Re: MultiWii release 2.1 is here :)

Post by Hamburger »

Stick Configuration Sheet is updated to reflect v2.1
available at http://code.google.com/p/multiwii/sourc ... FHamburger

lalalandrus
Posts: 15
Joined: Mon Sep 05, 2011 7:57 am

Re: MultiWii release 2.1 is here :)

Post by lalalandrus »

I seem to have a bug where the estimated ROLL and PITCH angles are still not level right after a ACC calibration. See in the screen shot that Z acc is 201 and all others are close to zero yet on the right the ROLL and PITCH diagrams way off from flat! I didnt have this issue in 2.0 or previous.

Image

p25o1
Posts: 33
Joined: Thu Mar 29, 2012 3:19 pm

Re: MultiWii release 2.1 is here :)

Post by p25o1 »

congratulation,

looking forward to try it out asap :D

gps is pending for me since i'm waiting for an i2c board ;)

sismeiro
Posts: 173
Joined: Tue Feb 21, 2012 12:33 pm

Re: MultiWii release 2.1 is here :)

Post by sismeiro »

Hi,

lalalandrus wrote:I seem to have a bug where the estimated ROLL and PITCH angles are still not level right after a ACC calibration. See in the screen shot that Z acc is 201 and all others are close to zero yet on the right the ROLL and PITCH diagrams way off from flat! I didnt have this issue in 2.0 or previous.

I just verified and I don't find the problem you have:

MultiWii • View topic - MultiWii release 2.1 is here ) - Mozilla Firefox_2012-07-15_21-37-20.png


Regards,
Luis Sismeiro

alexia
Posts: 85
Joined: Sun Jun 17, 2012 10:23 pm

Re: MultiWii release 2.1 is here :)

Post by alexia »

thanks alexander and thanks at all the great team for this huge improvement!!!!!!!

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shikra
Posts: 783
Joined: Wed Mar 30, 2011 7:58 pm

Re: MultiWii release 2.1 is here :)

Post by shikra »

ANother epic release ! One of the bigger ones.... Well done guys

Tazzy
Posts: 75
Joined: Sun Jun 19, 2011 4:45 pm
Location: Sweden

Re: MultiWii release 2.1 is here :)

Post by Tazzy »

sismeiro wrote:Hi,

lalalandrus wrote:I seem to have a bug where the estimated ROLL and PITCH angles are still not level right after a ACC calibration. See in the screen shot that Z acc is 201 and all others are close to zero yet on the right the ROLL and PITCH diagrams way off from flat! I didnt have this issue in 2.0 or previous.

I just verified and I don't find the problem you have:

MultiWii • View topic - MultiWii release 2.1 is here ) - Mozilla Firefox_2012-07-15_21-37-20.png


Regards,
Luis Sismeiro


I have seen this before, the good news is that it always work to use the stick combo to calibrate it right to exact level also in the gui .... so try to do it with the stick instead :)

// Tazzy

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ezio
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Re: MultiWii release 2.1 is here :)

Post by ezio »

MultiWii Stick View for Android also supports 2.1 :)
https://play.google.com/store/apps/details?id=com.ezio.multiwii (should be available very soon)
Image

signal15
Posts: 37
Joined: Sat Jun 23, 2012 8:44 pm

Re: MultiWii release 2.1 is here :)

Post by signal15 »

signal15 wrote:Sweet!

When I upgrade, is it going to erase all of my PID settings?

Also, will I have to retune my PIDs at all?


For those wondering, it does wipe everything. I put my old values in for pitch and roll, and left the rest at defaults, and it flies great.

LenzGr
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Location: Hamburg, Germany
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Re: MultiWii release 2.1 is here :)

Post by LenzGr »

Excellent news. Congratulations and kudos to all developers for making the 2.1 release happen!

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UndCon
Posts: 293
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Re: MultiWii release 2.1 is here :)

Post by UndCon »

Cool work - tanks to all involved!

I tried with my paris v4 board
(genuine WMP/NK and a BMP085)

Some issues as the GUI crashes after a while. Cannot calibrate sensors from GUI without GUI-crash - have not yet connected a RX but I will try today with a PPM-RX as mentioned above that calibration with sticsk work.

I will try this fully on my desk before I transfer 2.1 to my Quad (currently running 2.0)
//UndCon

dodecopter
Posts: 35
Joined: Fri Jan 21, 2011 7:37 am

Re: MultiWii release 2.1 is here :)

Post by dodecopter »

its almost perfect , thank you :)

just tested with my vtail.
as i hadnt time to change motor spindirection, i used Y4 define.

seems Y4 is very good matching my setup (4 x 1000kv motor, front 10x4, back 8x4 props)

used stock settings.

2.1 is sooo nice - first flight i forgot to test autolevel. no need for that ACC , even for noob pilot like me :)
flies very stable with gyro only + stock settings.

MAg works fine too.
ALT hold works, but tested just short, due much wind here.
think its time for me to order GPS....


btw , the GUI hung up after a minute... (winxp32) , but it works like a charme with wingui2.1 from EOSbandi

Tifani
Posts: 63
Joined: Sun Nov 06, 2011 5:15 pm

Re: MultiWii release 2.1 is here :)

Post by Tifani »

Hi !
Thanks for 2.1 !!!
On bench test FailSafe is only turning motors off - no switching Level ON and no (MINTHROTLE+200) then TX is back on FC is also back on.
Can somebody explain ?
My config.h :

Code: Select all

  #define FAILSAFE                                 
    #define FAILSAVE_DELAY     10                     
    #define FAILSAVE_OFF_DELAY 200                   
    #define FAILSAVE_THROTTLE  (MINTHROTTLE + 200)   

Regards
Tom

skytor
Posts: 48
Joined: Tue May 29, 2012 5:14 pm

Re: MultiWii release 2.1 is here :)

Post by skytor »

Hi @ALL

thumbs UP to the "Update Crew" nice work :-)

to TOM

the failsafe works 100% fine ( i used a 7 Channel M-Link Multiplex Receiver) ... normal i must DISARM + Throttel LOW to reaktivate the kopter ..... I think your receiver have a internal failsafe .. and the kopter ""see"" alltime a signal

Regards
Thorsten

Tifani
Posts: 63
Joined: Sun Nov 06, 2011 5:15 pm

Re: MultiWii release 2.1 is here :)

Post by Tifani »

I tested FailSafe with Spectrum AR6200, AR6110 & HK OrangeRX R610.
After TX off Throttle graph in WinGui drop to 910 and motors drop to MINTHROTTLE value (1120 for SS ESC).
If Yaw stick is hold left during TX power of FC will disarm after little time - this indicate than RX is sending some signal.
Looks like I can't use FailSafe with Spectrum radios - is this true ???
Tom

Edit:
P.S.
I tested all RX's with logic analyzer, all of them send only THROTTLE signal when TX is OFF other lines are flat.
Can FailSafe procedure check other than throttle channel to be activated ???
Tom

skytor
Posts: 48
Joined: Tue May 29, 2012 5:14 pm

Re: MultiWii release 2.1 is here :)

Post by skytor »

Hi !
and many Thanks for 2.1Version

i have my airborne today ... all works great :mrgreen:
for testflight is used the standard PID setting i changed NOTHING !
an it works fine inklusive the Failsafe ;-)

Hardware
Flyduino MEGA Flight Controller CPU Board (ATMEGA 2560)
IMU Freeimu 0.4.3 10DOF ( MPU6050 Gyro/ACC- HMC5883L Mag- MS5611 Baro)
FMP04 GPS Modul (10Hz update) on Flyduino BOB
HobbyTronic Bluetooth Module -> Naze32 Configurator on Samsung Galaxy S3
25cm Frame with Warthox Centerplate
ESC from SUPPO 18Amps (original firmware)
Motors SUPPO BL-2212/13 with 8x4,5 props
TX/RX -> Multiplex M-Link Cockpit SX 7 channel RX Multiplex (RX-7)
OSD Rushduino (status not online -> wating for 2.1 update) on GoPro Hero HD / 5.8 Ghz TX/RX "selfmade"

copterrichie
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Re: MultiWii release 2.1 is here :)

Post by copterrichie »

Just wanted to say, thank you one and all that had a hand in the new release, works really well on my Mini-Bicopter's home made shield, ATmega328 Nano and MPU6050. Got her dialed in with only three adjustments. Hooray!

jpsabo
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Re: MultiWii release 2.1 is here :)

Post by jpsabo »

Wow! Very nice release. I loaded this to my Quadrino Zoom with the new MS5611 barometer, which is on my HT-FPV frame. Default PIDs are near perfect and I might not need any tweaking. Tested the baro and mag hold and it works very nice.

Many thanks to the entire development team...very much appreciated.

Regards,
John

rbirdie001
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Re: MultiWii release 2.1 is here :)

Post by rbirdie001 »

Wow! The same feeling like in previous post. Big thanks to all developers!
Loaded into my tricopter (800kV Motors, 10x4.7 props, about 1 kg AUW, Crius SE board, I2C GPS) little PID tunning and flies just great!
Much improved "calmness" in level mode and position hold is incredible - in calm weather it stays in about 2m area!
The only thing which still not perfect is altitude hold (I was never able to tune it well :( ). It remains in about 2-3 meter heigh range, but always "pumping".
Can someone point me to some good guide which I can use to tune alt hold parameters?
Thanks!
Roman

copterrichie
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Re: MultiWii release 2.1 is here :)

Post by copterrichie »

I believe there is work presently being done to incorporate the Accelerometer Z axis in the Altitude holding. May be possible is the hover throttle zone is addressed, no two copters will have the same zone.

tovrin
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Re: MultiWii release 2.1 is here :)

Post by tovrin »

interesting thought rich, if you configure your hover throttle within RC settings in gui, maybe there could be code to reflect better control...

copterrichie
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Re: MultiWii release 2.1 is here :)

Post by copterrichie »

Yea, here is the link: viewtopic.php?f=8&t=1982

I have toyed with the throttle Curve in the GUI, need a little more tuning but I don't fully understand how it works within the MWC code yet.

nhadrian
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Re: MultiWii release 2.1 is here :)

Post by nhadrian »

Dear Alexinparis!!!

I'd kindly ask you to put in a selectable serial speed setting into the GUI!
RCTimer just released his new extension board which contains a slot for XBee Pro modules!
So maybe others than me would use XBees for telemetry soon.
But, unfortunatelly, XBee only supports 57600 speed for full 2way communication. So is is important to have the chance of modifying speed in the GUI too.
Thanks in advance!!!

BR
Adrian

ps.: I personally interrested in the MAC version but once you modify the sketch of the GUI it'd be easy to generate GUI to other platforms...

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EOSBandi
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Re: MultiWii release 2.1 is here :)

Post by EOSBandi »

nhadrian wrote:Dear Alexinparis!!!

I'd kindly ask you to put in a selectable serial speed setting into the GUI!
RCTimer just released his new extension board which contains a slot for XBee Pro modules!
So maybe others than me would use XBees for telemetry soon.
But, unfortunatelly, XBee only supports 57600 speed for full 2way communication. So is is important to have the chance of modifying speed in the GUI too.
Thanks in advance!!!

BR
Adrian

ps.: I personally interrested in the MAC version but once you modify the sketch of the GUI it'd be easy to generate GUI to other platforms...


Adrian, as long as the refresh rate is not settable, there is no reason to lower the serial speed, the current update rate and number of messsages are going to saturate the serial line at 57600.

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jevermeister
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Re: MultiWii release 2.1 is here :)

Post by jevermeister »

Thanks for that release.
I just implemented my new GY-86 with MPU6050 and she flies great with stock settings.
GPS Code is epic!
The VT100 code really helps.
All the small improvements are great.Also the GUI is getting better and better.
Thanks to everyone who contributed betatested and reported bugs.Was nice working with you guys.
Nils

Tazzy
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Re: MultiWii release 2.1 is here :)

Post by Tazzy »

jevermeister wrote:Thanks for that release.
I just implemented my new GY-86 with MPU6050 and she flies great with stock settings.
GPS Code is epic!
The VT100 code really helps.
All the small improvements are great.Also the GUI is getting better and better.
Thanks to everyone who contributed betatested and reported bugs.Was nice working with you guys.
Nils

Did you need filter settiings to get it ok ?

// Tazzy

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jevermeister
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Re: MultiWii release 2.1 is here :)

Post by jevermeister »

Yep I applid 98Hz lpf to it. I have some vibrations from the motors i could not get rid of.
it flies fine now

rbirdie001
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Re: MultiWii release 2.1 is here :)

Post by rbirdie001 »

I'm still trying to tune alt hold in 2.1 for my tricopter and can't get rid of "pumping" of altitude within 1-2 meters.
Of course I know that the code isn't perfect yet for this feature, but others multicopters I saw on the YT perform AH much better than my so maybe I'm doing something wrong...
From previous versions I remember that especially for altitude hold there were standard named values (PID) used for something little different (I think "D" for limiting influence or something). Can someone cnfirm me what exactly "I" and "D" values really mean for alt hold in 2.1?
Thanks Roman

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Crashpilot1000
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Re: MultiWii release 2.1 is here :)

Post by Crashpilot1000 »

Main baro code is still unchanged, so its still not working well. Perhaps with ms Baro, but def. not with BMP085. I am really disappointed to see no official movement/statement in this direction. Implementing a new feature is more exciting, than getting a bad working feature to work properly.

Sebbi
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Re: MultiWii release 2.1 is here :)

Post by Sebbi »

The "D" alt value is the one you need to tweak. The copter will oscillate ("pump") when it is too high. Same goes for the "P" value, but with less effect. The "I" value has almost no effect ...

rbirdie001
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Re: MultiWii release 2.1 is here :)

Post by rbirdie001 »

@Sebbi: Thanks for the idea! (Anyway I'd like to know if the "D" value in alt hold is really "D" term or something else.)
@Crashpilot1000 - you are right, but please remember that MWC is a free project so you can't complain that people in their free time do what they like to have and not what you need... ;)
I'm also very glad that GPS is integrated and works nice! :D
Roman
BTW: Today I tested GPS position hold in some wind and my tricopter danced crazy dances around me (in the still weather it was perfectl stable.)
So also naviation values will need some tunning... :(

Tifani
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Re: MultiWii release 2.1 is here :)

Post by Tifani »

Hi !
Is Roll and Pitch switched in 2.1 or I did something wrong ?
If I move Pitch Stick or sensors in Pitch axis my "servos" go in opposite direction.
If I move Roll Stick or sensors in Roll axis my "servos" work in the same direction.
Also no ACC stabilization
No servos connected, only GUI readout.
Thanks for any help
Tom
Edit: just tested with v.18p2 everything work fine including AAC stabilization
Attachments
Roll_max.png
Pitch_max.png

Vilhelmsson
Posts: 8
Joined: Sun May 20, 2012 7:09 am

Re: MultiWii release 2.1 is here :)

Post by Vilhelmsson »

Hi, am i the only one using S-bus, tryed 2.1, r964 and no AUX cha, revert to 120622 and it's ok ?

mahowik
Posts: 331
Joined: Sun Apr 10, 2011 6:26 pm

Re: MultiWii release 2.1 is here :)

Post by mahowik »


mahowik
Posts: 331
Joined: Sun Apr 10, 2011 6:26 pm

Re: MultiWii release 2.1 is here :)

Post by mahowik »

Hi guys,

Which Arduino IDE version is preferable to use for compile 2.1? I'm still using Arduino 1.0, but probably Arduino 1.0.1 is more right for some special features of 2.1?

thx-
Alex

flyrobot
Posts: 73
Joined: Thu Apr 05, 2012 3:59 pm

strange behaviour after acrobatic on MWI 2.1

Post by flyrobot »

Hi,

I have strange quad behavior using 2.1 quadrino after i do acrobatic using headfree, acc on.
the quad become uncontrollable and tend to fly infront. the first try i broke one motor and 2 arm was bended, and the second try still remain same strange behavior, but luckily it fly low and small damage.

anyone have same problem? may be its something bugs on software?

thanks,

John

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dramida
Posts: 473
Joined: Mon Feb 28, 2011 12:58 pm
Location: Bucharest
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Re: MultiWii release 2.1 is here :)

Post by dramida »

I also noticed a bug in mwc regarding yaw autospin. Here is the behaviour filmed. http://www.youtube.com/watch?v=bCrAMUykk1o
This autospin i induced also by violently turning the copter with my hand during flying.

chris ables
Posts: 317
Joined: Wed Feb 08, 2012 8:42 pm
Location: United states

Re: MultiWii release 2.1 is here :)

Post by chris ables »

dramida wrote:I also noticed a bug in mwc regarding yaw autospin. Here is the behaviour filmed. http://www.youtube.com/watch?v=bCrAMUykk1o
This autospin i induced also by violently turning the copter with my hand during flying.

In the firmware did you uncomment the reverse yaw gyro for tri ? That looks like whats happening to your tri in your video ! :D

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dramida
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Joined: Mon Feb 28, 2011 12:58 pm
Location: Bucharest
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Re: MultiWii release 2.1 is here :)

Post by dramida »

That video was intended to be a stunt launch, but instead it turned to be a software bug revealer. My tri was flying perfect as long as i didn't force it by hand to rotate too much on yaw, causing an variable overflow.

crashlander
Posts: 506
Joined: Thu May 05, 2011 8:13 am
Location: Slovenia

Re: MultiWii release 2.1 is here :)

Post by crashlander »

dramida wrote:That video was intended to be a stunt launch, but instead it turned to be a software bug revealer. My tri was flying perfect as long as i didn't force it by hand to rotate too much on yaw, causing an variable overflow.

I have noticed something like that on one of dev. releases before 2.1 on a QuadX with Crius SE (spinning hand launch) and concluded it was pilot error. So I have not tried that again. :)
My Quad is super stable on other axis (roll, pitch) and can be flipped easily.

Regards Andrej

flyrobot
Posts: 73
Joined: Thu Apr 05, 2012 3:59 pm

Re: strange behaviour after acrobatic on MWI 2.1

Post by flyrobot »

flyrobot wrote:Hi,

I have strange quad behavior using 2.1 quadrino after i do acrobatic using headfree, acc on.
the quad become uncontrollable and tend to fly infront. the first try i broke one motor and 2 arm was bended, and the second try still remain same strange behavior, but luckily it fly low and small damage.

anyone have same problem? may be its something bugs on software?

thanks,

John


today, i tried flying without acrobatic flying. It seem the quad flying very well.
it might be the compass become unstable if the quad flying acrobatic rolling.

john

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dramida
Posts: 473
Joined: Mon Feb 28, 2011 12:58 pm
Location: Bucharest
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Re: MultiWii release 2.1 is here :)

Post by dramida »

Today i observed that my mag was changing the arrow as i tilt the copter, also nothing was changed but the placement of the LiPo. After some unsuccessful calibration i found that if your mag gets disturbed (by my nearby battery), it become very sensitive when tilting. Check if your mag arrow keeps its heading when banking, and if not, first step try to recalibrate then check your power distribution wirering to be at least 5 cm distance from your mag HMC5884.

crono
Posts: 14
Joined: Thu Aug 16, 2012 2:52 pm

Re: MultiWii release 2.1 is here :)

Post by crono »

remzibi osd is not integrated?? the first was built not anymore?? people buy things and then not use them more?


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mOuchadino
Posts: 15
Joined: Sat Jul 07, 2012 3:51 am

Re: MultiWii release 2.1 is here :)

Post by mOuchadino »

:mrgreen: :mrgreen:

my successful maiden flight :D

http://www.youtube.com/watch?v=5_wXOjbDxI8

THX mULtiwii,.... :idea:

supafly
Posts: 2
Joined: Thu Dec 27, 2012 5:10 pm

Re: MultiWii release 2.1 is here :)

Post by supafly »

[quote="lalalandrus"]I seem to have a bug where the estimated ROLL and PITCH angles are still not level right after a ACC calibration. See in the screen shot that Z acc is 201 and all others are close to zero yet on the right the ROLL and PITCH diagrams way off from flat! I didnt have this issue in 2.0 or previous.

I have noticed the same problem. in 2.0 all works perfectly. what are your sensors lalalandrus? i am using genuine nunchuck connected through WMP. maybe is some bug in 2.1 according this config. my friend using flyduino is fine with 2.1..

Donjuanzx9
Posts: 4
Joined: Sun Mar 03, 2013 6:53 pm

Re: MultiWii release 2.1 is here :)

Post by Donjuanzx9 »

lalalandrus wrote:I seem to have a bug where the estimated ROLL and PITCH angles are still not level right after a ACC calibration. See in the screen shot that Z acc is 201 and all others are close to zero yet on the right the ROLL and PITCH diagrams way off from flat! I didnt have this issue in 2.0 or previous.

Image

Im having same problem,were you able to fix it?

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