MultiWii

PatrikE

PA3040 wrote:Dear Kbev5709

MY multiwii unit USB shocked get damaged can you please advice to connect the unit other way

Thanks in advance

http://www.rctimer.com/product-765.html
You can connect it on the small white connector next to the USB marked SD/FTDI.
Using a FTDI programmer.

PatrikE

Code: Select all

servo[5] = axisPID[PITCH] + axisPID[YAW]; // Full(VTail)
servo[6] = axisPID[PITCH - axisPID[YAW]]; // Full(VTail)

This should do it.
You might have to switch directions though.

PatrikE

To see if it's the controller..
Connect the esc direct to the Rx and test if it works then.

PatrikE

If you set Yaw-I to zero it will stop.

PatrikE

There's a minimum 5 sat set generally in the code for FIX.
Gps code is blocked if not FIX.

I guess you can modify the limit if you want.
But the thing is Planes use GPS also for altitude and a good 3D fix is a key.

PatrikE

If the speed is lower than 5m/s it will increase throttle to force the plane forward.
When speed and altitude is correct it will use cruise throttle setting.

PatrikE

Make sure motors is plugged to correct outputs.
Check that board orientation is correct.
That is the issues in 99% of the cases with this behaviour.

PatrikE

Looks really Good!

PatrikE

The code simply uses the Altitude and heading data from the Gps together with the loc data..

PatrikE

Arm is used on planes too.
You must ARM before throttle activates.

PatrikE

The colored bar graph layout depends on the creator of the Gui.
Multiwii Gui have TAER so don't worry about that.

Just make sure TX and Gui have same order.
Do you see any channels working at all?

To activate SBUS

Code: Select all

feature SERIALRX
set serialrx_type = 2

PatrikE

Hi,
First All mixing is done in the FC.
Baseflight airplane Mixer have two wing servos, elevator and Rudder.
Hence you should set up the TX as a normal 4ch airplane plus the AUX channels.
No mixing in the radio.

PatrikE

Hi great you got the problems solved.. The GPS PID's is generally the half in BF compared to MWii. I don't really understand the first question. But if you lower throttle to min it will stop the motor in RTH mode. The plane will try to return as long as it have air under the wings. It will not add a...

PatrikE

If the banking is 45 degree and the plane don't turn.
Then you must apply more elevator compensation.
There's a cli setting and standard is 1.0.
Max is 2.0
Try to play with it.

PatrikE

NavR.
Increase P to maybe double.
I think it is 1.4 default.

And maybe increase I term to later.

Does the plane bank 45 degree?
It should with this settings you have.

PatrikE

ardufriki wrote:thx Patrik, so I dont't have to touch mag_declination, isn't it?

If you don't have a mag leave it on zero.
The code uses data from GPS if you don't have a MAG.

PatrikE

fw_gps_maxcorr is the maximum banking allowed.

Increase to 30 - 35 for tighter turns.
35 should give a radius around 25-30 meters.

Baseflight fixed wing Howto
http://fotoflygarn.blogspot.com/2015/01 ... dwing.html

PatrikE

There was some changes made in servomixer recently.
Unfortunately it broke most of the servo functions.
Hopefully it will be fixed soon.

Use my Dev version instead of the stable Baseflight
https://dl.dropboxusercontent.com/u/975 ... 150711.rar

PatrikE

Online Mixer
http://www.iforce2d.net/mixercalc/

PatrikE

You might have to press the reset button in the gui.
And maybe uncomment some more buzzer options in config.

PatrikE

MISO is digital pin 14. // PB3 So this should work. #define BUZZER #define OVERRIDE_BUZZERPIN_PINMODE pinMode (14, OUTPUT); #define OVERRIDE_BUZZERPIN_ON PORTB |= 1<<3; #define OVERRIDE_BUZZERPIN_OFF PORTB &= ~(1<<3); To assign function to a switch is done in the Gui. Simply check a box in the p...

PatrikE

Hi Patrik, I have been reading in fpvlabs something about the "UBLOX BUG" and a fix to it. May be that my problems with 3D fix in ublox mode have something to do with that? It could be if you have used it on a Baseflight FC before. Mwii don't change that setting at init like BF do. Use U-...

PatrikE

Just a few thought's... If you don't have a ground element on the olrs antenna you can get all kind of weird things happen.( ex. original whip antenna) A diapole antenna is better in all ways. You can easily modify the original antenna by attaching a ~165 mm cable to the ground of the antenna connec...

PatrikE

All Naze32 Acro/Full, Afronini or a Afromini Amaze or any clone will work fine.
Afromini Amaze rev3 seems like a really nice FC.
The code uses GPS data for altitude and heading on Airplanes.

Latest dev code for planes
https://dl.dropboxusercontent.com/u/975 ... 150711.rar

PatrikE

Basflight is still very similar to the MWii code.
Cleanflight is too clean for me...
To many files in the structure.
But anyone who have better knowledge about cleanflight can merge it.

Sorry

PatrikE

There is soulutions.
search for"javaw"
search.php?keywords=javaw

PatrikE

http://ez-gui.com/manual/multiwii-clear ... ui-how-to/

PatrikE

There's also a save button in the Gui that save the PID settings to a file.
Not sure about the AUX

PatrikE

You can see the Pinout on the first picture.
On the second You can see +5v marked as +.
Reset and gnd is closest to the edge.

To reset the board just connect RESET pin to GND quickly.

PatrikE

Either DIY with mosfets controlled from motor pins.
There is settings for running brushed motors cin config.

Or Buy a ESC for Brushed motors.

PatrikE

There's a Arm function...
You need to start with reading wiki.

PatrikE

That is normal!.
See it as a warning that the copter is Armed.(Do not touch it)

To stop the motors from starting when Armed.
#define MOTOR_STOP

It's just a matter of taste how you want it.

PatrikE

You can control a copter with EZ-gui on a Android.
And you can find others have experimented with PC control on the forum.

PatrikE

Actually the navigation engine is still active even without waypoints! I have done some slimming on my FixedWing dev. MultiWii_FW_150431.zip It undefines Baro and MAG plus lots of GPS code. But when i add the sensors it it compiles smaller on a Crius_SE Sketch uses 25 952 bytes (84%) of program stor...

PatrikE

amperage = MWAmperage / 100; Which is assuming that the value from the MSP_ANALOG message is in milliamps, but it is in 1/10 of amps - the same scale that MW Osd uses. When I removed the / 100 from that line and recompiled, I got the same values in the OSD as MultiWiiGui. I hope this is able to hel...

PatrikE

I have a HK mini multiwii with dsm2 receiver controller and there is no D12 available for connecting the nick servo. Are there any other possibilities? Hi and welcome. Assuming you use 2.4. You can use A0 -A2 with some trix. In def.h find this. #elif defined(HELICOPTER) Change the row after to #def...

PatrikE

Correct..

PatrikE

GPS connected in RX2, TX2, GND, VCC. But actually RX2 pin is broken now. so what can I do??
is it work that connect to RX1 TX1 or RX3 TX3??

Change #define GPS_SERIAL 2 to the port you plugged your GPS.

PatrikE

A drop of CA on a prop blade is heavier than you would imagine..

PatrikE

Hi PatrikE, will check the Yaw-I... Version I use: FW_NAV_140402 ... i thought this was the last stable official thanks, bigcheese The 2.3 based version (FW_NAV_140402) is recommended if you don't plan for Waypoints. Even though i have a newer unpublished version of that too. The newest version bas...

PatrikE

axljackass wrote:Is the model for flying wing in the multiwiiconf still airplane?

FLYINGWING have a own define in config and also in the gui.

PatrikE

axljackass wrote:Thanks patrik, just for clarification P for roll and pitch right need to change?sorry just a newbie here.thanks again

Yes change both.

PatrikE

The tutorial for plane setup.
http://fotoflygarn.blogspot.com/2012/03 ... plane.html
And when you add GPS
http://fotoflygarn.blogspot.com/2014/04 ... plane.html

For a flying wing you can start with P=2 and see if you need to decrease later.
Good luck

PatrikE

I tested to set up servos on a plane today with EZ-GUI.
It seems the app crashes if you set rates to negative.
Gui claims -120 to 120

Used 2.3nav protocol if it matters.

PatrikE

what can be done about the rudder wiping? is this a setting in the PIDs ? Make sure to zero the Yaw-I to avoid some known issues on rudder on planes. This can occur when the plane have problem deciding to go right or left. And maybe a bit when it's close to home position. I would erase the Eeprom a...

PatrikE

I have not tested it on a plane without ailerons.
But i think it can work if you connect the rudder to a aileron Port.
When plane roll right rudder should steer left.

If you try and can confirm it i can add the information to the Setup Guide.

/Patrik

PatrikE

Gps functions don't use the standard althold.
Just enable Angle and RTH.
It have alt hold integrated in the function.

PatrikE

The original AltHold code is written for copters and have been modified for Airplanes by someone. But i'm not sure if it ever been verified as working. It seems it even use throttle position to change Alt. I have not looked at it since I use a different Althold in gps modes. Maybe some PID tweaks ca...

PatrikE

Yes Thats the setting. I rather think your servos can draw high current during Short time and reboot Fc. Do a test on the bench. Start engine and run all servos hystericly . Or rock the plane to simulate turbulense. This can overload the Bec. A reboot will defenatly send your plane on a oneway trip ...

PatrikE

Hi. You can increase the maxvalue for roll. Flying wing need around 35 degrees to titten the cirkling. If you use a Mega board they is sensitive to voltage drops. And can reboot in air. I have browned out Board several Times. Servos can draw higher current than you think. Now i have a large capacita...

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