MultiWii

rbirdie001

Hi! I don't want to open new thread for my obsevations when there is similar topic . I think I may have a found bug in the MWI 2.2 code and it seems to be present even in next developement versions. It is in accelerometer I term influence in default "tradional" PID loop (option 1) in HORIZ...

rbirdie001

Hi Roman, I think FAILSAFE_RTH is enabled in latest dev. It makes the plane Autoland at home #define FAILSAFE_RTH true // Enable RTH for failsafe incl Auto DisARM at home for autoland /Patrik Hi Patrik, thanks for ideas, I'll gradually test them but I don't think FAILSAFE_RTH is right hint. I activ...

rbirdie001

Hi, sorry but on my flying wing altitude control in last RTH PID version doesn't work. With older version 130322 when plane returned home, it remained circling in safe height and was keeping the same height until I switched RTH off or batery was discharged. Navigation wasn't so nice as is now , but ...

rbirdie001

What is the effect of different mode on the Plane/FLYING_WING ANGLE = PITCH stabilisation ? HORIZON = ROLL stabilization ? Angle and horizon are similar - both stabilizing PITCH+ROLL to horizontal level. The only difference is that angle is active always but horizon supress levelling when you give ...

rbirdie001

mariusmelc wrote:And about mode setings ...
This is ok ?
No others mode for Airplane/FlayngWing ?

THANKS

You can try also HORIZON mode, could be better.
Roman

rbirdie001

Hi! I continued in discovering what is wrong with HORIZON mode I term and found that the strange behavior I found at airplane dev. version is present also in stock 2.2 tricopter configuration so it seems to be hidden software bug. Here is short description: Tricopter is lying on the ground and tail ...

rbirdie001

Hello Guys I download the version PatrikE MultiWii_dev_2013_07_15_r1539 with NAV_PID. I add : need to setup servo directions here; no need to swap servos amongst channels at rx */ #define PITCH_DIRECTION_L -0.5 // left servo - pitch orientation #define PITCH_DIRECTION_R 0.5 // right servo - pitch o...

rbirdie001

Hi! finally tested new FW NAV PID version in the air and improvement of the navigation is just GREAT! Also servo trimming from GUI is for me big help. No more snake flight but very smooth and straight navigation towards home. Simply big improvement I noticed only one problem of ACC mode generally: I...

rbirdie001

Failsafe must be not only function to return plane to home. Failsafe also must mind "what if something goes wrong" - stalled or broken servo, too strong wind, preventing plane go home, programming errors, unwanted motor start on the ground, etc. Altitude check to stop nav functions can be...

rbirdie001

.. Also I observed stange wobble: when plane passed GPS_HOLD coordinates, and get out of GPS_WP_radius[i], plane starts wobbling for 3-5 times and only after some more wobbles turns and goes back to GPS_HOLD coordinates. Because was no wind, I take presumption that in the point after wp_distance > ...

rbirdie001

Hi surf_akinys! Nice to see another "obsessed" Generally great idea to work out new functions - can be always usefull but for emergency save and return the plane is current code more than good enough. If you have enough landing place at home position, it's sufficient to stop the engine whi...

rbirdie001

I have read most of this thread, and first of all, big thank you to PatrikE I will be trying this on a (yet to buy) flying wing, and a multiwii Pro + MTK GPS that Im re-purposing from my quad. Am I right in understanding that the barometer is not used for RTH ? Or will it automatically use the baro...

rbirdie001

I have a flying wing with this software. Balanced prop, lpf on 20hz, default gyro smoothing, pitch P on 1.8 and TPA on 0.9. And I still get oscillations on high speed for acro and level. Any ideas? Could I get the Ps from other flying wing owners? Hi Peter, as I promised, here are my actual working...

rbirdie001

I have a flying wing with this software. Balanced prop, lpf on 20hz, default gyro smoothing, pitch P on 1.8 and TPA on 0.9. And I still get oscillations on high speed for acro and level. Any ideas? Could I get the Ps from other flying wing owners? Hi Peter, I'm now on holidays so I have only laptop...

rbirdie001

Hi all! Just to wake up this little sleepy thread: During last month I did many flights using RTH with my flying wing (to be honest I got now quite lazy and when my plane got into some uncomfortable or risky situation, I simply call RTH and plane saves itself and returns ). This is maybe bad for my ...

rbirdie001

Hi All, I am trying to test multiwii airplane code too. I am using a Crius AIOP V2.0 board. I uploaded the firmware, But I could find pin for second aileron servo (wing 2). Any idea ? connection diagram etc ... Aydin Hi Aydin, try to look here: m I hope you can find all necessary there. Regards Roman

rbirdie001

Hi Guys, finally everything works! I removed elevator filtering and just reduced GPS_ALTCORR from 6 to 2 and everything now works just GREAT! Today I tested RTH in the wind about 8 m/s and it worked perfect including height control. It was funny to see the plane in such wind as it was hanging above ...

rbirdie001

Hi all, today i tested my Teksumo with a level pid of 5. It doesn´t make a roll of death anymore. But when i switch to ACC the control of the plane realy rough. I must give full elevator that the plane put his nose up. Gyro mode works very well. I only fly in Gyro mode. But ACC mode doesn´t work fo...

rbirdie001

Patrik, thanks for explanation about the units - I'll look into the code with the new info in head. I was again flying my flying wing with GPS_ALTCORR 4 and GPS_MAXCLIMB 15 and it still looks like that during RTH there isn't any elevator control at all . Plane seems to remain in the same level as I ...

rbirdie001

Hi! Perfect Today I tested modified navigation on my flying wing Toro 900 with reduced #define GPS_ALTCORR 2 and with elevator control filtering 5 segments long and it was navigating home and circling around it PERFECTLY. I'll have to go back higher with GPS_ALTCORR value because now the autopilot d...

rbirdie001

Hi Patrik, thanks for quick reply! I meantime I was still thinking about the possible reasons and have one more idea: I could have too big P value in #define GPS_ALTCORR 6. Other navigation values I usually lovered for my planes but this value I kept default. I'll play with it and see. For this new ...

rbirdie001

Hi Guys! I'm back after some time! I sadly looked into the box with pieces of my Easystar scatered during the last RTH test (http://www.multiwii.com/forum/viewtopic.php?f=7&t=2456&start=210#p35774) and then rather decided to build new 900mm flying wing and tune-up RTH on it... IMG_0788cs.jpg...

rbirdie001

ACC is calibrated. On ground the control throws goes in correct direction. So i think i have to much vibrations when Motor is in Kayle Hi Kayle, not everything is caused by vibrations... If the gyro mode is OK, easy test for ACC: Calibrate ACC with plane levelled in all axis. Then if it's in the sa...

rbirdie001

Hi Guys, last years I did some tricopter flying and movie taking using 1280*720 keychain camera with quite good results. Sometimes I had very little rolling shutter (jello) effect , but generally the video quality was acceptable. For this year I decided to upgrade and bought 1920*1080 Boscam HD came...

rbirdie001

Ugly crash! but while the plane was falling I tried to stick control the plane at least to slowdown the fall but it looked that no stick input had any effect. It is quite possible that during descend the plane was in very stable stall turn and thus the lack of stick control. While the plane was fal...

rbirdie001

Hi guys, I have some bad times now because last two RTH testing days ended up in plane scaterred into pieces. On the 1st May I was testing servo slowdown function to make navigation more fluent and my plane experienced bad crash with these results: easystar_broken1.jpg In short it was probably cause...

rbirdie001

I will try to install it int o 330+ km/h rc plane Hi dr.tom, also I agree with Andrej, that FPV on such plane can be quite dangerous! If you are going to fly in the middle of desert or wide fields, it can be quite OK, but when you (or someone else) get idea compete with cars on the highway or flyin...

rbirdie001

I use a function to slowdown Flaps. It could be possible to use similar function for Nav if Nav error is bigger than ex.100. And if the error is less use full speed. It could look like this. // Test to slowdown servos NOTE!.. Untested #define SERVOSPEED 3 // zero to disable Increase for faster spee...

rbirdie001

Hi Roman, thanks for reply. My Plane is a HK Teksumo Flying Wing with "big" control throws. During gliding the "shaking" is not so much like with motor is on. So i think i have to much vibrations. First i fix the vibration and then i will lower my P Pid value. Kayle Probably you...

rbirdie001

The main problem was that when i switch to "angle" mode my flying wing shakes so much that i don´t can fly with it. So the most time i use "passthrough" mode. I have a lot vibrations and use LPF Filter on 98hz and gyro smoothing. I think i must tune my pid ( at the moment the pi...

rbirdie001

... I use a function to slowdown Flaps. It could be possible to use similar function for Nav if Nav error is bigger than ex.100. And if the error is less use full speed. It could look like this. // Test to slowdown servos NOTE!.. Untested #define SERVOSPEED 3 // zero to disable Increase for faster ...

rbirdie001

...Some entertaining math 250km/h with 45 deg. dive means that the plane is loosing aprox. 35m/s Andrej, we don't have to go far to see such *** guy who points his plane nose from 300m towards ground and tries how much speed his plane gains when levelled after 250m of free fall . One day long time ...

rbirdie001

Even very fast planes will not break apart when actual turns are limited to 15 deg. in bank turns. Since the G force is proportional to degree of banking (m) the only difference is that the radius of turns will be bigger. Hi Andrej, I can be wrong, but I'm afraid that degree of banking is relative ...

rbirdie001

regardless of the motor speed the plane should fly. if not then adjust the cog. That definitely goes for normal planes without auto leveling electronics but in our case level/horizon mode tries to keep plane level disregarding speed and thus aerodynamic forces that governs planes during glide desce...

rbirdie001

If not than there must be problem with my setup (Spektrum DX7, and AR7000something) since when I switch of my TX it only sets TH to 0 and MWII does not activate anything. Andrej, with the new failsafe code for me failsafe state works even with Spectrum DX6i. First check whether MWi goes into failsa...

rbirdie001

Hi guys! also I finally tested FW_Nav_130322 and can confirm that it works fine! I think it's really time to merge it to the project You can check video here: m I have to say that this video is a little boring so I put few points to check for impatient people... Launched with #define RTH_BAILOUT tru...

rbirdie001

Please turn Box Names off and save (simulator is one thing and the FC other) After doing so, you will be OK. I know that it creates some confusion , we will fix that for r 2.2 and explain it better on the WIKI. Yes, thanks, I did so and it works now! I guess that BOX NAMES is the an old protocol an...

rbirdie001

use BOX ID´s, that does not suppose to happen anymore... did you checked box ID´s as well? KV Dear kataventos, as I wrote, I'm quite new in Minim OSD and I don't understand difference between BOX ID's and BOXNAMES so I resume situation once more: In my config, there is as default commented : //#def...

rbirdie001

Hi Guys, Great project I'm new owner of that OSD board and now I'm learning how to configure it. I think I already understand most of features and more-less everything works as I want to, but I have one problem: I'm using r345 and with my copter with MWi 2.2 the OSD doesn't show flying modes (triang...

rbirdie001

Have the same problem. With dev version I think it was r1122 with baro code from mahowik...this was the best AltHold for me. Yeah copter did fell down for about 50cm when althold was turned on but then copter stayed at same altituted all the time. Does it mean that in final 2.2 there isn't baro cod...

rbirdie001

Hi! I installed in my Tricopter with Crius SE board (baro BMP085) firmware MW 2.2 instead 2.1 and now I can't tune up altitude hold. I noticed that there were some changes in altitude hold code, but those should be to better, shouldn't be? With 2.1 AH wasn't perfect but in calm wather with AH active...

rbirdie001

Hi, thanks for suggestions, I should know something about that matters (in fact I'm an electronic ). Unstable power was my suspect, but theoretical situation isn't as bad as you described. These four servos in my plane are 12g digital servos and they draw maximum 250mA each, i.e. ~1A total max. curr...

rbirdie001

5 meter was just a example.. In the code i only use gps values comming from MWii. Direction to waypoint and distance. One thing that can cancel navigation is if you loose 3D fix.(5 Sats.) In my calculation I anyway mixed up diameter and radius so for cancelling servo jitter during 4 secs @ 6m/s I w...

rbirdie001

Hi Patrik, Thanks for ideas! Yes I2c coded was overflowing on distance to home. I dont know if it's fixed yet. This shouldn't be the case because I'm using Promini serial GPS. Additionally I don't think that I'd be more than 500m away. Easystar have wingspan 130cm and from my experience it's difficu...

rbirdie001

Hi Guys, during the Eastern vacation I finally tested RTH functionality on my Easystar with version FW_Nav_130322. It was very little wind so I set quite low throttle values for automatic navigation to avoid "crazy horse" ride. I kept defaults for navigation corrections and it was resultin...

rbirdie001

OK, if I used English dictionary I wouldn't look like stupid... . Of course I know this angle, just didn't know that English term. I have old 35 MHz radio and it has one 2 state swich (GEAR) on CH5 and to CH6 can be mapped POT (intended for flaps) which can be used as 3 state switch. I suppose that ...

rbirdie001

Yes Andrej, I'm using the same settings MOTOR_STOP FAILSAFE_RTH true DONT_RESET_HOME_AT_ARM - that's logical for an airplane. When I wrote "disarm when THRO is moved all the way down" I really ment "disarm", not stopped engine. You can check, that if a switch is assigned for ARM,...

rbirdie001

No it was not a mistake AUX1 is ARM in mid and low position (both checkboxes) but only in low is RTH otherwise MWII would disarm and activate RTH About speed: normal RC flying is done based on TH position and perceived angle of attack, glider pilots (RC and real ones) are trained to fly just by obs...

rbirdie001

For Bailout there should be a Speed limit set to avoid stall. if gpsSpeed is higher than xxx cm/sec its ok to climb. else only accelerate strait forward. Good idea but risky: If bailout is used as autolaunch, you launch usually against wind. My plane minimal is about 20km/h, if the wind is 25km/h, ...

rbirdie001

Hi guys, thanks both for great ideas! @Andrej: 3 state switch as 0 - passthu, 1 - gyro(acro), 2 - level/horizon 1st 2 state switch ARM 2nd 2 state switch ARM+RTH With that approach I only disable RTH routine and plane is armed again! Yes, that configuration is exactly what I needed, my mind was just...

Search found 178 matches