Search found 64 matches

by doppler
Sun Jun 08, 2014 1:29 am
Forum: Software
Topic: Cleanflight aka Multiwii port to STM32 F10x and F30x
Replies: 761
Views: 1355536

Re: Cleanflight aka Multiwii port to STM32 F10x and F30x

i'll add that to my list of things to look into. feel free to have a go at merging the code yourself and submit a pull request. Do you have any links to the specific code changes you're referring to in Multiwii? links/file/method/line numbers? That would be most helpful. Hi Dominic, appreciate the ...
by doppler
Sat Jun 07, 2014 2:18 pm
Forum: Software
Topic: Cleanflight aka Multiwii port to STM32 F10x and F30x
Replies: 761
Views: 1355536

Re: Cleanflight aka Multiwii port to STM32 F10x and F30x

@doppler don't know the yaw improvements you're thinking of but for me , with Cleanflight version june 3, Naze32 on Y4 config, default yaw PID , yaw rate=0 , align_board_yaw=-90 and no expo on the Tx, the yaw behaviour is quite precise, fast and smooth. Best way to find out is to try it. I loaded a...
by doppler
Sat Jun 07, 2014 2:14 am
Forum: Software
Topic: Cleanflight aka Multiwii port to STM32 F10x and F30x
Replies: 761
Views: 1355536

Re: Cleanflight aka Multiwii port to STM32 F10x and F30x

Does cleanflight contain the Yaw improvments made in versio 2.3 of Mwii, or is it a copy of baseflights? I found I couldn't get acceptable yaw, well ever, but basic usable yaw without -90 expo on my transmitter. I've currently switched to Harakiri testcode3 which has incorporated 2.3's yaw improveme...
by doppler
Mon May 26, 2014 1:44 pm
Forum: Software
Topic: Harakiri aka multiwii port to stm32
Replies: 1502
Views: 234424

Re: Harakiri aka multiwii port to stm32

EDIT: Concerning cutting traces look at the bottom of this page: m http://dev.ardupilot.com/wp-content/uploads/sites/6/2013/06/apm2_mag_cut_2.jpg Been contemplating on putting an external mag for a while now, but every time I look at the mag chip on the rev5 board, I drop the idea. How is it possib...
by doppler
Fri Apr 11, 2014 12:51 pm
Forum: Software
Topic: Harakiri aka multiwii port to stm32
Replies: 1502
Views: 234424

Re: Harakiri aka multiwii port to stm32

FYI Compiling in Linux is easy as all you need is the gcc-arm-none-eabi toolchain. Windows is so complicated for just a compile. I cant remember but I think this would work for toolchain as well in linux sudo apt-get update sudo apt-get install build-essential sudo apt-get install gcc-arm-linux-gnu...
by doppler
Mon Dec 09, 2013 6:41 pm
Forum: Getting Started - MultiWii config and setup
Topic: Basic understanding, which motors have to run faster
Replies: 11
Views: 969

Re: Basic understanding, which motors have to run faster

No I don't think you have a problem with props and motor selection, I run a few of my quads with 8" 4.5 props with 1450kv motors and they don't flip unless I make them. When things are setup right you can even put in mis-matched equpiment i.e. I was testing 8" x 6" props, i put one on...
by doppler
Wed Nov 27, 2013 11:05 pm
Forum: Software development
Topic: Atmega328 with fet output for motor brushed
Replies: 39
Views: 12704

Re: Atmega328 with fet output for motor brushed

+1 I've got a few 32u4 boards as well, only one is on a brushed system so far, but looking at sticking a nano board into a custom brushed setup.
by doppler
Sat Nov 16, 2013 9:02 pm
Forum: Ideas
Topic: What you don't like in EZ-GUI?
Replies: 51
Views: 6157

Re: What you don't like in EZ-GUI?

Leonardo should work right now. Just select CDC/ACM insted of FTDI Ezio Thanks, I got it working, but it took some interesting steps to get there. Selecting Other (CDC/ACM) resulted in the application crashing when I tried to connect. I then for giggles tried FTDI, when hitting connect I got an and...
by doppler
Thu Oct 17, 2013 11:48 am
Forum: Ideas
Topic: What about using BlinkM - like Naza style led
Replies: 5
Views: 1109

Re: What about using BlinkM - like Naza style led

BlinkM is ok, but I'm thinking these instead;

https://www.sparkfun.com/products/12025

Would require a dedicated AVR, or some code in MultiWii to support the WS2812 protocol, but you could do so much with these.

Andrew
by doppler
Thu Oct 10, 2013 6:40 pm
Forum: Ideas
Topic: What you don't like in EZ-GUI?
Replies: 51
Views: 6157

Re: What you don't like in EZ-GUI?

Not a I don't like, but the recent addition of Android Serial Port connections via USB, the addition of Arduino Leonardo type devices (MultiWii Nano) would be awesome, given I can't plug a bluetooth into it.... Andrew Leonardo should work right now. Just select CDC/ACM insted of FTDI Ezio Thanks, I...
by doppler
Wed Oct 02, 2013 3:39 pm
Forum: Ideas
Topic: What you don't like in EZ-GUI?
Replies: 51
Views: 6157

Re: What you don't like in EZ-GUI?

Not a I don't like, but the recent addition of Android Serial Port connections via USB, the addition of Arduino Leonardo type devices (MultiWii Nano) would be awesome, given I can't plug a bluetooth into it....

Andrew
by doppler
Mon Sep 23, 2013 4:32 pm
Forum: Ideas
Topic: What you don't like in EZ-GUI?
Replies: 51
Views: 6157

Re: What you don't like in EZ-GUI?

The switch between portrait and landscape, I use my devices almost always in portrait, dashboard 2 being a portrait option would be great!
by doppler
Thu Aug 08, 2013 3:13 pm
Forum: General discussions
Topic: Control acrotrainer via TX switch?
Replies: 6
Views: 618

Re: Control acrotrainer via TX switch?

Thank you PatrikE that clears things up greatly for me! I'll check my radio against the GUI before I make the software change, 200 was too high for sure for my liking.

Andrew
by doppler
Thu Aug 08, 2013 11:59 am
Forum: General discussions
Topic: Control acrotrainer via TX switch?
Replies: 6
Views: 618

Re: Control acrotrainer via TX switch?

This thread caused me to go and try acro trainer for the first time, very neat but I have a question. What is the 200 in config.h mean? +/-200 from stick centre?

Thanks
Andrew
by doppler
Tue Aug 06, 2013 12:12 pm
Forum: Boards
Topic: Naze32 hardware discussion thread
Replies: 3249
Views: 676927

Re: Naze32 hardware discussion thread

Looking good, your power to weight ratio is going to be off the charts!
by doppler
Fri Jul 26, 2013 1:04 pm
Forum: Getting Started - MultiWii config and setup
Topic: erratic yaw
Replies: 7
Views: 598

Re: erratic yaw

Very nice... now back to my waffling, CNC machine (basic one) or 3d printer first....
by doppler
Thu Jul 25, 2013 2:41 pm
Forum: Getting Started - MultiWii config and setup
Topic: Motor Rotation
Replies: 3
Views: 294

Re: Motor Rotation

I use a servo tester to check these things while building, I used to do it the put it all together, guess and cross fingers, I hurt myself a couple of times with killer quads... servo testing each motor is much safer (even better with no props).

Andrew
by doppler
Thu Jul 25, 2013 1:50 pm
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

the yaw jump problem is caused by not taking in account the MINTHROTTLE motor lower limit. When a sharp yaw correction is required one motor will spin up the other will slow. If the slow motor is to be commanded below MINTHROTTLE it will be instead tied to MINTHROTTLE but the opposite motor will be...
by doppler
Thu Jul 25, 2013 1:44 pm
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

Thanks Alex, I've added the line but haven't had a chance to test it yet, hopefully today. I will also play with P, you mentioned somewhere that D has no impact? I swore in my testing it did, but perhaps that was just placebo effect? yes, yaw D has absolutely no impact. it is just not used. On your...
by doppler
Mon Jul 22, 2013 11:56 am
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

the yaw jump problem is caused by not taking in account the MINTHROTTLE motor lower limit. When a sharp yaw correction is required one motor will spin up the other will slow. If the slow motor is to be commanded below MINTHROTTLE it will be instead tied to MINTHROTTLE but the opposite motor will be...
by doppler
Mon Jul 22, 2013 11:51 am
Forum: Software development
Topic: NOTICE: Trunk has been migrated to .cpp/.h files
Replies: 64
Views: 11224

Re: NOTICE: Trunk has been migrated to .cpp/.h files

Thank you both Hamburger and timecop.
by doppler
Mon Jul 22, 2013 12:27 am
Forum: Software development
Topic: NOTICE: Trunk has been migrated to .cpp/.h files
Replies: 64
Views: 11224

Re: NOTICE: Trunk has been migrated to .cpp/.h files

So, which is right? I saw the 57k too, left it alone but remember setting my MKS to 115, maybe binary mode switches rates anyway....
by doppler
Sun Jul 21, 2013 3:56 am
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

So I flew today with r1539 with the extra line Alexinparis asked me to try. P for Yaw was anywhere from 4.7 to 9.0. At 4.7 it drifts and then slowly brings itself back to where it should be, it's a little unsettling to watch, feels so loose. Up'd the P to 9.0 holds much better. Now for the YAW hoppi...
by doppler
Sun Jul 21, 2013 3:51 am
Forum: Software development
Topic: NOTICE: Trunk has been migrated to .cpp/.h files
Replies: 64
Views: 11224

Re: NOTICE: Trunk has been migrated to .cpp/.h files

I have GPS working on a HK Mega with MKS GPS, MKS16 defined. RTH works, and its the first time I played with it, kinda neat.

Version is 1539.

Andrew
by doppler
Sat Jul 20, 2013 6:28 pm
Forum: Shields, boards and sensors
Topic: wanted: mega 2560 board smaller than 5x5
Replies: 23
Views: 2230

Re: wanted: mega 2560 board smaller than 5x5

I think the 8-bit cpu board market is shrinking fast. ARM is hitting 8-bit MCU manufacturers hard with very competitive solutions, the only real issue I see is toolchain for them which is maturing (especially on the OpenSource front) quickly. I was watching a FreeScale M0->M4 presentation on Thursda...
by doppler
Sat Jul 20, 2013 5:36 pm
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

Noctaro; I'm seeing the altitude gain, quite significantly after some strong yaw movement, if you find PID's that address it, can you please share it? You might also want to try adding the link that Alexinparis indicated may help. I still haven't tried it yet, it's loaded and ready to go, just need ...
by doppler
Fri Jul 19, 2013 12:40 pm
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

Most testing tonight, Yaw holds great as long as I is set to greater than 0.00, the default which I think was 0.024 is good on my quad. Played with P, I, D and rate to see if I could get rid of the Yaw hop, if I reduce yaw to very slow it's fine, but significant yaw causes a jump, letting it spin l...
by doppler
Thu Jul 18, 2013 11:51 am
Forum: Software development
Topic: GUI on windows 64bit ?
Replies: 13
Views: 3067

Re: GUI on windows 64bit ?

Damn.... that's actually really nice.... I however get nervous being reliant on chrome (google) as my interface to things given their ways of depreciating things (Reader, Latitude) etc...
by doppler
Thu Jul 18, 2013 2:31 am
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

Most testing tonight, Yaw holds great as long as I is set to greater than 0.00, the default which I think was 0.024 is good on my quad. Played with P, I, D and rate to see if I could get rid of the Yaw hop, if I reduce yaw to very slow it's fine, but significant yaw causes a jump, letting it spin li...
by doppler
Wed Jul 17, 2013 10:54 pm
Forum: Getting Started - MultiWii config and setup
Topic: erratic yaw
Replies: 7
Views: 598

Re: erratic yaw

Got a picture of your mast? I've been struggling with a "nice" way to do this....
by doppler
Wed Jul 17, 2013 2:43 am
Forum: Software development
Topic: Request for yaw test on r1539
Replies: 32
Views: 5271

Re: Request for yaw test on r1539

Tested it. Hold does seem better than 2.2, but yaw hop is, well frightening. I have Yaw rate at 0.50 (1.00 in 2.2), and when I Yaw in either direction there is a small jump up at start of yaw and a big jump up at end. If I move the quad with my hand there is a very big jump upwards.. I can lower the...
by doppler
Mon Jul 15, 2013 11:10 pm
Forum: Shields, boards and sensors
Topic: wanted: mega 2560 board smaller than 5x5
Replies: 23
Views: 2230

Re: wanted: mega 2560 board smaller than 5x5

Hamburger; I hear you, Eagle isn't for the faint of heart. Your idea makes sense and there is no reason it can't be done (putting chips on both sides of the board), however it makes reflowing the board more difficult which would mean more expensive for production runs, or difficult to impossible for...
by doppler
Fri Jul 12, 2013 10:12 pm
Forum: Software development
Topic: VBAT Problem with R1512 on 2560 based FC
Replies: 17
Views: 2027

Re: VBAT Problem with R1512 on 2560 based FC

http://www.atmel.ca/Images/doc2549.pdf

ADMUX references start on page 271.... don't drown in that sucker...

Andrew
by doppler
Fri Jul 12, 2013 4:00 pm
Forum: Shields, boards and sensors
Topic: wanted: mega 2560 board smaller than 5x5
Replies: 23
Views: 2230

Re: wanted: mega 2560 board smaller than 5x5

The mega2560 is a big chip unless you go with the CBGA package.... you'd need a 4 layer board for that, and well it's just ugly for hobbists, I don't see any boards with that package on it already. Found these but they don't meet your criteria, which I think is telling.... m m m m If you have any Ea...
by doppler
Fri Jul 12, 2013 3:33 pm
Forum: Software development
Topic: KV Team Multiwii OSD
Replies: 1021
Views: 161322

Re: SW Development on Minim Osd

bad grounding? As described it sure seems that way.
by doppler
Fri Jul 12, 2013 3:31 pm
Forum: Getting Started - MultiWii config and setup
Topic: use of ext. 6050 in case of faulty gyro on HK MultiWii?
Replies: 1
Views: 309

Re: use of ext. 6050 in case of faulty gyro on HK MultiWii?

First thing would be to make sure you don't have a conflict for addressing of the I2C bus; here's a handly little arduino sketch for scanning ID's // -------------------------------------- // i2c_scanner // // This program (or code that looks like it) // can be found in many places. // For example o...
by doppler
Tue Jun 25, 2013 12:04 am
Forum: Ideas
Topic: wishlist for v2.3
Replies: 104
Views: 17769

Re: wishlist for v2.3

felixrising wrote:You can add all the numbers together you want, Hamburger beat you to it :)

https://code.google.com/p/multiwii/source/detail?r=1501



w00t!! w00t!
by doppler
Sun Jun 23, 2013 10:17 pm
Forum: Ideas
Topic: wishlist for v2.3
Replies: 104
Views: 17769

Re: wishlist for v2.3

-ralf- wrote:Please implement the Alex.K-PID-Mod ... maybe as a selectable "#define ALEXK" - option ...


+1
by doppler
Thu May 23, 2013 2:16 am
Forum: MultiWii tweaking - flying experience
Topic: MultiWii - Yaw Hold... not holding.
Replies: 14
Views: 3361

Re: MultiWii - Yaw Hold... not holding.

Interesting, will try it also, i too don't really like the mwii yaw implementation. I thought Alex will change this in the next release? Alex? manu I see Alex has replied with an affirmative to that request, that is great news! In the mean time, I've been doing some more experimentation, as I menti...
by doppler
Mon May 20, 2013 8:12 pm
Forum: MultiWii tweaking - flying experience
Topic: Yaw rate too low.
Replies: 4
Views: 1411

Re: Yaw rate too low.

I agree Yaw and Multiwii on Quadcopters is definitely not the same experience as other boards. I've struggled with Yaw hold, rate, and Yaw hop, hold and rate I've improved on, read this thread on custom motor mixing I did; http://www.multiwii.com/forum/viewtopic.php?f=17&t=3490 This simply makes...
by doppler
Sat May 04, 2013 6:59 pm
Forum: Shields, boards and sensors
Topic: Mag integration question...
Replies: 7
Views: 542

Re: Mag integration question...

Take a look at viewtopic.php?f=17&t=3490 I was having similar problems and made a custom mixer to handle it. Works so far and would like to know if it helps for you.

Andrew
by doppler
Fri May 03, 2013 3:56 pm
Forum: MultiWii tweaking - flying experience
Topic: MultiWii - Yaw Hold... not holding.
Replies: 14
Views: 3361

Re: MultiWii - Yaw Hold... not holding.

So I've had time to take it for some outdoor flights and have some very promising results. With the Yaw mix set to +-5, Yaw holds perfectly, my quad on 2 cell flies very smoothly. On 3-cell there is excessive yaw hop on aggressive yaw movements. I have now also tried +-3 for Yaw, looks like hold is ...
by doppler
Wed May 01, 2013 3:08 am
Forum: MultiWii tweaking - flying experience
Topic: MultiWii - Yaw Hold... not holding.
Replies: 14
Views: 3361

Re: MultiWii - Yaw Hold... not holding. - Updated

Update, it was occuring to me, that Yaw just wasn't being given the strength to hold the quad in yaw place. I noticed that when I twist the quad with my hand, very little force is applied by the blades to reverse this, my kk boards and even my MQX give noticeable reactions to the twisting to resist ...
by doppler
Tue Apr 30, 2013 2:26 am
Forum: MultiWii tweaking - flying experience
Topic: MultiWii - Yaw Hold... not holding.
Replies: 14
Views: 3361

MultiWii - Yaw Hold... not holding.

I've still been very much struggling with MultiWii on Quadcopters with Yaw Holding. The software just simply doesn't try and counter any yaw noted in the gyro that happens without stick input. See picture, yellow highlight is the yaw in question, and the purple highlight is my yaw input to put the c...
by doppler
Fri Apr 26, 2013 2:30 am
Forum: Software development
Topic: MultiWii EZ-GUI
Replies: 1434
Views: 256059

Re: MultiWii EZ-GUI

Awesome, thanks so much!
by doppler
Thu Apr 18, 2013 11:56 pm
Forum: Software development
Topic: Change Angle Mode maximum angle
Replies: 2
Views: 922

Re: Change Angle Mode maximum angle

Ah, you're right, I also need to find where the stick input scaling is done as well.... more searching required....

(any hints also appreciated to those in the know)

Thanks
Andrew
by doppler
Thu Apr 18, 2013 1:53 am
Forum: Software development
Topic: Change Angle Mode maximum angle
Replies: 2
Views: 922

Change Angle Mode maximum angle

It has been described that in Angle mode the maximum pitch/roll is 50 degrees in either direction. My quadcopter appears to obey this number fairly well. I'd like to adjust it, make it more tame, say 20 degree's instead, so I can let the kiddies play with the copter a bit with less concern. Now I co...
by doppler
Thu Apr 11, 2013 3:59 pm
Forum: ESCs, propellers , servos and radios
Topic: Wanted: Motor for fun-flying, ~700g thrust@3S, 8"prop,1400kv
Replies: 11
Views: 1866

Re: Wanted: Motor for fun-flying, ~700g thrust@3S, 8"prop,14

Hamburger wrote:finally, I went for this HP2212-1450KV (from rctimer again)
http://www.rctimer.com/index.php?gOo=go ... oodsid=856
because they have low line prop adaptors for those motors http://www.rctimer.com/index.php?gOo=go ... oodsid=821
and sunysky have only the airplane style prop adaptors


How do those adapters work? Do they slide over the shaft of the motor?

Andrew
by doppler
Tue Apr 09, 2013 9:32 pm
Forum: Getting Started - MultiWii config and setup
Topic: Yaw counter clockwise ~ 90 deg/sec (solved)
Replies: 6
Views: 1064

Re: Yaw counter clockwise ~ 90 deg/sec

Ok.... +2 on motor inclination.... I am shocked at how sensitive it is, given the way the ties hold the X mounts on the motors they actually click against the ties, so I notched two of the motors that kind of looked off in the right direction, no more Yaw.... See attached image for how the cork moun...
by doppler
Tue Apr 09, 2013 12:13 pm
Forum: Getting Started - MultiWii config and setup
Topic: Yaw counter clockwise ~ 90 deg/sec (solved)
Replies: 6
Views: 1064

Re: Yaw counter clockwise ~ 90 deg/sec

Thanks scrat, that could be possible. I mount the motors to the 1/8 thick 1/2 wide aluminum rod using zip ties, with a cork lining on the bottom otherwise you can't get the zip ties tight enough. This time I put cork between the motor and aluminum rod, and at the bottom, could leave room for the mot...