Search found 166 matches
- Mon May 20, 2013 3:34 pm
- Forum: Software development
- Topic: Gyro_scale is wrong for MPU6050?
- Replies: 36
- Views: 19602
Re: Gyro_scale is wrong for MPU6050?
OK, thanks. So the values in _shared are correct, and the ones posted by ovaltineo earlier in this thread were the other way around (and wrong?)
- Mon May 20, 2013 12:22 am
- Forum: Software development
- Topic: Gyro_scale is wrong for MPU6050?
- Replies: 36
- Views: 19602
Re: Gyro_scale is wrong for MPU6050?
That is correct, but I would have written it this way coz it's easier to match with the data sheet, and a compile error would alert the user that the GYRO_SCALE is not defined for the sensor: #if defined(MPU6050) #define GYRO_SCALE ((4.0f * PI)/(14.375 * 180.0f * 1000000.0f)) //(MPU6050) #endif #if...
- Tue Apr 23, 2013 10:20 pm
- Forum: MultiWii tweaking - flying experience
- Topic: flying 3D and doing flips
- Replies: 7
- Views: 2544
Re: flying 3D and doing flips
You need to play with the throttle. If the copter is upside down and you don't reduce the throttle, you are accelerating it towards gravity. What worked for me is to start the flip by giving it more throttle, so it shoots upwards. Then reduce the throttle and and as soon as it has reached the peak a...
- Fri Jan 25, 2013 6:30 pm
- Forum: Shields, boards and sensors
- Topic: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Modul
- Replies: 6
- Views: 3305
Re: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Mod
Thanks! I looked at this document and it seems like Multiplex has developed their own communication protocol. So MultiWii does not support this device out of the box, you would have to implement their protocol first. There seems to be an existing Arduino library , but it's certainly not a trivial ta...
- Fri Jan 18, 2013 1:42 pm
- Forum: General discussions
- Topic: Downloading from Googlecode
- Replies: 1
- Views: 1097
Re: Downloading from Googlecode
Not sure what you are trying to accomplish. Do you want to check out a certain revision of the code via SVN? Maybe this page helps?
- Fri Jan 18, 2013 10:16 am
- Forum: General discussions
- Topic: MultiwiiGUI slow on blutooth
- Replies: 9
- Views: 2930
Re: MultiwiiGUI slow on blutooth
If the baud rate is the same, I'm afraid I don't have any better clue. I don't use a Mac, but maybe it's how Mac OS communicates with the Bluetooth adapter? Is it an external one, or built-in? What do you mean by "slow"? Is the GUI reacting sluggish/choppy to changes? Is the slowness depen...
- Thu Jan 17, 2013 12:43 pm
- Forum: General discussions
- Topic: MultiwiiGUI slow on blutooth
- Replies: 9
- Views: 2930
Re: MultiwiiGUI slow on blutooth
Are you using the same baud rate on both connections?
- Wed Jan 16, 2013 9:09 pm
- Forum: Boards
- Topic: Teensy 3.0 anyone?
- Replies: 5
- Views: 3436
Re: Teensy 3.0 anyone?
Primarily it's of course "because we can" and the hack value that brings. I think it provides some compelling features at a very reasonable price (compared to Arduino boards): ⋅ more RAM ⋅ higher clock rates ⋅ better floating point performance ⋅ lots...
- Wed Jan 16, 2013 3:48 pm
- Forum: Software development
- Topic: Software Magnetometer calibration
- Replies: 10
- Views: 4398
Re: Software Magnetometer calibration
Quadraf wrote:Or you can use MWii-Preflight to do all the settings including mag callibration time up to 60 sec .
http://code.google.com/p/mwii-preflight/
Holy cow, that is the most overloaded application window I have seen in a while. No offense
- Wed Jan 16, 2013 3:43 pm
- Forum: Shields, boards and sensors
- Topic: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Modul
- Replies: 6
- Views: 3305
Re: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Mod
Well, the pin assignment and protocol (Serial, I2C or something else) would be the most useful information to begin with. Also the update rate is crucial, 5-10Hz are useful, 1Hz is usually too slow. What I'm unclear about: why this one? Do you already own it? If not, I'd suggest you look into altern...
- Tue Jan 15, 2013 9:01 pm
- Forum: Boards
- Topic: Teensy 3.0 anyone?
- Replies: 5
- Views: 3436
Re: Teensy 3.0 anyone?
(replying to myself)
Not based on MultiWii, it seems, but here's a Teensy 3.0 based flight controller: http://forum.pjrc.com/threads/14953-Tee ... controller
Not based on MultiWii, it seems, but here's a Teensy 3.0 based flight controller: http://forum.pjrc.com/threads/14953-Tee ... controller
- Tue Jan 15, 2013 8:42 pm
- Forum: Shields, boards and sensors
- Topic: Is compatible the Arduino Due board with MultiWii?
- Replies: 3
- Views: 1610
Re: Is compatible the Arduino Due board with MultiWii?
Ah, awesome! I'll take a look at that. Thanks!
- Tue Jan 15, 2013 8:39 pm
- Forum: Shields, boards and sensors
- Topic: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Modul
- Replies: 6
- Views: 3305
Re: Flyduino Pro Micro + 10DOF IMU GY-86 + Multiplex GPS Mod
It's unclear to me what kind of output this device provides. Does it have a serial interface, issuing NMEA sentences?
- Tue Jan 15, 2013 12:09 pm
- Forum: Links
- Topic: Multi-Rotor Form on G+
- Replies: 2
- Views: 3489
Re: Multi-Rotor Form on G+
Very cool. Joined!
FWIW, there is one on Facebook, too: https://www.facebook.com/groups/quadrocopters/
FWIW, there is one on Facebook, too: https://www.facebook.com/groups/quadrocopters/
- Tue Jan 15, 2013 12:07 pm
- Forum: Shields, boards and sensors
- Topic: Is compatible the Arduino Due board with MultiWii?
- Replies: 3
- Views: 1610
Re: Is compatible the Arduino Due board with MultiWii?
Not yet, to my knowledge - but patches are welcome
I had a similar question about the Teensy 3.0, which is somewhat similar to the Due.
I had a similar question about the Teensy 3.0, which is somewhat similar to the Due.
- Thu Jan 10, 2013 12:30 pm
- Forum: Boards
- Topic: Teensy 3.0 anyone?
- Replies: 5
- Views: 3436
Teensy 3.0 anyone?
Hi, I recently got myself a Teensy 3.0 board , which claims to be Arduino compatible, but uses an 32 bit ARM Cortex-M4 48 MHz CPU. Considering that it uses the Arduino IDE, libs and toolchain, I wonder if a port is more feasible starting off the mainline MultiWii code base (potentially supporting th...
- Tue Nov 27, 2012 4:37 pm
- Forum: Boards
- Topic: anykey0x board and MultiWii?
- Replies: 1
- Views: 1386
anykey0x board and MultiWii?
Yet another board that looks interesting: http://www.anykey0x.de/ - has anyone toyed around with it already? I wonder how difficult it would be to port the MultiWii code base to this one...
- Tue Sep 25, 2012 9:27 am
- Forum: ESCs, propellers , servos and radios
- Topic: Alternative ESC firmware (reflashing)
- Replies: 640
- Views: 365860
Re: Alternative ESC firmware (reflashing)
zarkon wrote:hey I have the same ESC mind sharing where is the programming pad for it? can't seem to figure it out
There does not seem to be one - you will have to connect to the solder pads of the CPU directly. Check the info and links from this spreadsheet for more info.
- Thu Sep 20, 2012 8:16 am
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
Try to check debug (acc, velocity) values as described some pages ago in two posts... i suppose you have a lot vibrations on your board... which acc and baro? Thanks, I'll look into that. Yes, vibration might be an issue, but wouldn't that primarly affect the accelerometers on the x/y axis?. I'm fl...
- Wed Sep 19, 2012 12:08 pm
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
EDIT - soundtrack changed. should be viewable by all. Well done mahowik et all..... Thanks, now I was able to watch it. Looks good, I haven't reached that level of stability with mahowik's code yet. I will try the ALT PID values you listed at the beginning of the video. Is the I term ("010&quo...
- Wed Sep 19, 2012 10:57 am
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
shikra wrote:http://www.youtube.com/watch?v=PwntTHftI6Q
"This video contains content from EMI, who has blocked it in your country on copyright grounds"
- Wed Sep 19, 2012 9:44 am
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
I did some more testing with mahowik's code today, tweaking the PID values. Getting there, but my current config reacts very aggressively against changes (you can hear the motors revving up and down quickly). There is a noticeable effect, but I'm still struggling to find the optimal values (it still...
- Wed Sep 19, 2012 9:35 am
- Forum: Ideas
- Topic: wishlist for v2.2 - CLOSED
- Replies: 150
- Views: 46882
Re: wishlist for v2.2
it will be great to have a reverse fonction for motors..it will be easier to mount his motor without desoldering if it s not in the good direction i don t know if it s possible .. Unfortunately that's not possible. The Firmware just sends a pulse signal to the ESC that defines the speed, not the di...
- Mon Sep 17, 2012 4:03 pm
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
FIY, I made some tests with mahowik's implementation yesterday (added on top of the stock 2.1 release, see my previous post for the patch). So far I could not get it fully stable (slow oscillations), I need to toy around with the PID values some more (using a Flyduino MicroWii with MPU-6050 and MS56...
- Mon Sep 17, 2012 11:24 am
- Forum: Software development
- Topic: Code Refactoring: Buzzer/LED goes alarm
- Replies: 36
- Views: 9793
Re: Code Refactoring: Buzzer/LED goes alarm
FWIW, I too would prefer just two warning levels, mimicing what my LiPo buzzer currently provides:
1. a warning that the battery voltage has dropped below a certain level (short beeps/blinks)
2. battery voltage is critically low, land immediately (permanent beep/faster blink frequency?)
1. a warning that the battery voltage has dropped below a certain level (short beeps/blinks)
2. battery voltage is critically low, land immediately (permanent beep/faster blink frequency?)
- Sun Sep 16, 2012 1:34 pm
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
I've extracted mahovik's changes to IMU.ino (against the 2.1 version in trunk, not the _shared repo) and it compiles. I hope to be able to do some outdoor tests later today, once the wind has calmed down. For what it's worth, here's the diff: [lenz@labtop MultiWii]% bzr diff IMU.ino === modified fil...
- Fri Sep 14, 2012 8:13 pm
- Forum: Software development
- Topic: Altitude Hold improvement solution
- Replies: 580
- Views: 1594196
Re: Altitude Hold improvement solution
I also intend to check out this code once I find a minute to merge the changes into my branch and the weather actually allows going outside (it's raining cats & dogs at the moment).
Patience, my young padawan
Patience, my young padawan
- Wed Sep 12, 2012 11:30 pm
- Forum: Ideas
- Topic: ESC programming with Spektrum Satellite?
- Replies: 9
- Views: 3683
Re: ESC programming with Spektrum Satellite?
Hello, the SimonK are of course a great thing. But I have installed on my Little Copter the XP-7A. Have the Sil µC and unfortunately goes no SimonK No worries, there are optimized firmwares for SiLabs-based ESCs as well: m Programming card is also bad because the ESC's are soldered and the Arduino ...
- Wed Sep 12, 2012 10:50 pm
- Forum: Software development
- Topic: Rushduino OSD - Multiwii based open software osd
- Replies: 782
- Views: 247832
Re: Rushduino OSD - Multiwii based open software osd
I have see (with my eyes) Johny yesterday. I know he face a lot of proplem in the last couple of month.. Thats sad no matter what the problems are I hope the go away fast, but he can I think say something... or not! See his last post for a possible explanation of his absence. I just hope he'll full...
- Tue Sep 11, 2012 2:48 pm
- Forum: Pictures & Videos
- Topic: Flyduino MicroWii Maiden flight
- Replies: 2
- Views: 2322
Re: Flyduino MicroWii Maiden flight
nice! those look like the same gemfan props i use, except mine are 11x4.7 and 12x4.7, but i have to guess that mine is significantly heavier than yours with my aluminum frame. Thanks for the kind words! Indeed, these are Gemfan props. Flyduino.net has them in bigger sizes as well. I was flying EPP ...
- Sun Sep 09, 2012 11:24 pm
- Forum: Ideas
- Topic: ESC programming with Spektrum Satellite?
- Replies: 9
- Views: 3683
Re: ESC programming with Spektrum Satellite?
I have to agree with ReadError - I flashed my HK SS20 with the SimonK firmware and this made a big difference (less noise, much more agile flight characteristics). No programming card needed.
But if you insist, here is some Arduino code that supposedly allows you to emulate a programming card: http://www.frank-zhao.com/cache/escprog ... rdhack.php
But if you insist, here is some Arduino code that supposedly allows you to emulate a programming card: http://www.frank-zhao.com/cache/escprog ... rdhack.php
- Sun Sep 09, 2012 11:20 pm
- Forum: Pictures & Videos
- Topic: Flyduino MicroWii Maiden flight
- Replies: 2
- Views: 2322
Flyduino MicroWii Maiden flight
This weekend I finished the rebuild of my quadrocopter. It's now equipped with new props (9x4.7 instead of 8x4.5), landing gear and the MicroWii flight controller (all from m), running stock MultiWii 2.1. It flies pretty stable with the stock PID values already: Video: m http://farm9.staticflickr.co...
- Sun Sep 09, 2012 10:25 pm
- Forum: Software development
- Topic: [PATCH] Add MicroWii support
- Replies: 3
- Views: 2048
Re: [PATCH] Add MicroWii support
Indeed! Thanks Alex for committing it - I did not notice this from the commit log message.
- Sun Sep 09, 2012 1:48 pm
- Forum: Ideas
- Topic: ESC programming with Spektrum Satellite?
- Replies: 9
- Views: 3683
Re: ESC programming with Spektrum Satellite?
Scotch wrote:If I understand correctly, so I can only but prorammieren the gas path.
But I want to change all the settings from the ESC.
I'm confused. What other settings are you referring to? Are you looking into using an Arduino board to replace the programming card?
- Sun Sep 09, 2012 1:40 pm
- Forum: Software development
- Topic: [PATCH] Add MicroWii support
- Replies: 3
- Views: 2048
Re: [PATCH] Add MicroWii support
Just wondering: does anyone with commit privileges have an opinion on this patch? I'm happy to adjust it, if anything is wrong/missing.
FWIW, I'm using that board myself, so this change has been tested.
FWIW, I'm using that board myself, so this change has been tested.
- Fri Sep 07, 2012 12:52 am
- Forum: Software development
- Topic: [PATCH] Add MicroWii support
- Replies: 3
- Views: 2048
[PATCH] Add MicroWii support
Hi, while the Flyduino MicroWii board is already supported by enabling individual #defines, there currently is no dedicated #define in config.h for it. I'd appreciate if the following patch could be accepted, to make it somewhat easier for new users to enable it - this patch is against the _shared r...
- Mon Sep 03, 2012 1:57 pm
- Forum: Connecting elements
- Topic: oled
- Replies: 3
- Views: 1982
Re: oled
I connected mine via I2C: http://farm8.staticflickr.com/7253/7563808670_cd32b0b051_n.jpg Quadrocopter: I²C 0.96" OLED display (128x64) - front http://farm9.staticflickr.com/8019/7563807254_3f13d938fc_n.jpg Quadrocopter: I²C 0.96" OLED display (128x64) - back You need to use the correct int...
- Fri Aug 31, 2012 2:31 pm
- Forum: ESCs, propellers , servos and radios
- Topic: ESC tuning ?
- Replies: 4
- Views: 2151
Re: ESC tuning ?
The powerup tune played when a motor is connected might also give a hint. Most ESCs with a stock firmware can be programmed with the transmitter directly, too - no need for a programming card.
- Fri Aug 31, 2012 11:46 am
- Forum: Ideas
- Topic: wishlist for v2.2 - CLOSED
- Replies: 150
- Views: 46882
Re: wishlist for v2.2
scanman wrote:Why not integrate this as a feature: flick a momentary switch on your transmitter and the quad can do crazy loops. release the switch and it returns stable!
We can call it the #WARTOX option!
Something like this is actually exists and it's merged already: AcroTrainer Mode
- Fri Aug 31, 2012 11:25 am
- Forum: General discussions
- Topic: Copter tilts to side before starting to fly
- Replies: 18
- Views: 5120
Re: Copter tilts to side before starting to fly
I looked at yhe pic of your quad you posted and was wondering how you have the props mounted ? The pic looks like they are just pressed on ! Props cannot spin on shaft or you will never get it to fly right ! If you look closely, you will notice the prop savers - black on black is hard to distinguish
- Fri Aug 31, 2012 11:18 am
- Forum: General discussions
- Topic: [Question] Limp batteries?
- Replies: 3
- Views: 1455
Re: [Question] Limp batteries?
Keep in mind that 39A would be the theoretical maximum, it's unlikely you would reach such a high current drain during normal operations. But yes, a 15C battery might be a bit too "weak" to power this setup. The higher this C level is, the more "responsive" the entire setup becom...
- Tue Aug 14, 2012 11:42 pm
- Forum: Ideas
- Topic: Binding Spectrum SAT via Mega Board ?
- Replies: 2
- Views: 1707
Re: Binding Spectrum SAT via Mega Board ?
There is an Arduino library for that, but I suspect it would bloat the firmware too much. It's probably easier to upload the binding firmware, perform the bind and then re-flash the board with the MultiWii code. In the end, how often do you need to re-bind your receiver?
- Tue Aug 14, 2012 11:36 pm
- Forum: Ideas
- Topic: {idea}[hw+sw]possible to use xbee to replace radio?
- Replies: 1
- Views: 1257
Re: {idea}[hw+sw]possible to use xbee to replace radio?
MultiWii already supports remote controlling via a serial signal - look for the RCSERIAL define in config.h. It should be trivial to pipe that serial stream through Xbee. Exchanging more information in a bi-directional fashion probably requires changes to the serial protocol.
- Tue Aug 14, 2012 11:33 pm
- Forum: Ideas
- Topic: Alternative Buzzer signal generation for Piezo speakers?
- Replies: 6
- Views: 7022
Re: Alternative Buzzer signal generation for Piezo speakers?
Or with a 555 timer. http://www.kpsec.freeuk.com/555timer.htm#astable Yes, I was thinking about that, too! A small PCB with a piezo and an NE555 plus the analog pieces should make a nice little breakout board. No magnetic field and the power consumption should be fairly low. I wonder if this circui...
- Tue Aug 14, 2012 11:27 pm
- Forum: Ideas
- Topic: Failsafe and InflightAccCalibration
- Replies: 16
- Views: 5934
Re: Failsafe and InflightAccCalibration
IMHO The coming home is less dangerous than crash or fast landing at the site of lost control. If the copter climb up to 20-30 meters and start return to home, you have a great chance to quickly restore RC control and manual return to home then land. Only if there are no obstacles between you and t...
- Thu Aug 09, 2012 5:56 pm
- Forum: Ideas
- Topic: Alternative Buzzer signal generation for Piezo speakers?
- Replies: 6
- Views: 7022
Re: Alternative Buzzer signal generation for Piezo speakers?
You can use this : https://www.sparkfun.com/products/7950 Actually, this is not a Piezo speaker, it's a regular buzzer with a magnet. What I am envisioning is either driving a pure piezo with a PWM signal on the buzzer pin, or creating a small PCB that contains a piezo speaker and some circuitry to...
- Thu Aug 09, 2012 5:00 pm
- Forum: Ideas
- Topic: 0.96" SSD1306 128X64 OLED Display Module
- Replies: 207
- Views: 240150
Re: 0.96" SSD1306 128X64 OLED Display Module
howardhb wrote:http://www.wide.hk/products.php?product=I2C-0.96%22-OLED-display-module-%28-compatible-Arduino-%29
Cheapest OLED deal on the web....shipping takes 4 - 5 weeks though
Can't confirm this - they shipped mine (to Germany) within ~10 days.
- Fri Jul 20, 2012 2:58 pm
- Forum: Ideas
- Topic: 0.96" SSD1306 128X64 OLED Display Module
- Replies: 207
- Views: 240150
Re: 0.96" SSD1306 128X64 OLED Display Module
I have benefited from all the work done to get OLED to work therefore I have drafted a Wiki page for MW OLED. Its based on entries in this thread, cut and paste actually, and includes how to activate it and how to change the logo. Very cool, thanks for summarizing this! I am not a member of Google ...
- Thu Jul 19, 2012 4:39 pm
- Forum: Software development
- Topic: "Arduino" Pro Micro
- Replies: 131
- Views: 70357
- Tue Jul 17, 2012 4:49 pm
- Forum: Software development
- Topic: playing with acc-z altitude hold
- Replies: 44
- Views: 18831
Re: playing with acc-z altitude hold
I must admit I too am in the skeptical camp about the benefit of co-mingling the battery voltage with the barometer. These two parameters aren't directly correlated and I concur with dramida that it likely infuses random noise into the PID loop. Shouldn't the combination of ACCZ for quick altitude c...