Search found 280 matches

by Katch
Sat May 05, 2012 10:14 am
Forum: Ideas
Topic: Simple mode for beginers
Replies: 70
Views: 21868

Re: Simple mode for beginers

I'm fine as long as I don't hit WOT at any point - at WOT the mag interference kicks in and pulls my heading right off...
by Katch
Fri May 04, 2012 10:46 am
Forum: Ideas
Topic: Simple mode for beginers
Replies: 70
Views: 21868

Re: Simple mode for beginers

Been playing with this headfree mode a bit over the last few days - it's really fun.

Crank the yaw right over and then pitch and roll for spinning circuits of my flying field.
by Katch
Fri May 04, 2012 10:15 am
Forum: Software development
Topic: Improving Altitude Hold Performance
Replies: 98
Views: 36504

Re: Improving Altitude Hold Performance

I'm getting very different results from the 2 main sensors we use. BMP085 on default pids - quite good now as long as I am 20m up or so it holds within 1 or 2m MS5611 on the same frame same settings and same acc etc - yoyos slowly loosing altitude before I have to turn off Alt Hold to avoid landing....
by Katch
Wed May 02, 2012 7:55 pm
Forum: Software development
Topic: GPS integration
Replies: 1724
Views: 486219

Re: GPS integration

Can someone post a summary of what behaviour to expect while testing the i2c GPS code please? I've just installed a Flytron i2c on my Warthox MWC with Free IMU 0.3.5.MS. My headfree mode is working nicely and I get a 3D fix on my GPS. At the moment when I turn on POS hold the Quad goes off on a lit...
by Katch
Wed May 02, 2012 5:12 pm
Forum: Software development
Topic: GPS integration
Replies: 1724
Views: 486219

Re: GPS integration

Can someone post a summary of what behaviour to expect while testing the i2c GPS code please? I've just installed a Flytron i2c on my Warthox MWC with Free IMU 0.3.5.MS. My headfree mode is working nicely and I get a 3D fix on my GPS. At the moment when I turn on POS hold the Quad goes off on a litt...
by Katch
Fri Apr 27, 2012 12:06 pm
Forum: Software development
Topic: Chinese 'Rabbit' FC uses MultiWii code, no credit given
Replies: 59
Views: 20581

Re: Chinese 'Rabbit' FC uses MultiWii code, no credit given

Have we tried talking nicely to the RCG user cmpang - he's Chinese and seems to be in direct communication with the developers. (It wouldn't surprise me if he was a lot more closely linked to the Rabbit FC than he presents himself to be) I also feel the thread over on RCG warning people of the GPL v...
by Katch
Fri Apr 27, 2012 11:33 am
Forum: Software development
Topic: Defines for Chinese IMUs
Replies: 66
Views: 37519

Re: Defines for Chinese IMUs

Engineering of my GY-80 is very clean and nice. Can't say how it performs yet as I haven't had a chance to play.

With the GY-86 it'd be nice to know how they've routed the HMC883L Mag - whether it's on the aux i2c of the MPU6050 or the main i2c of the IMU.
by Katch
Wed Apr 25, 2012 7:31 pm
Forum: Software development
Topic: Defines for Chinese IMUs
Replies: 66
Views: 37519

Defines for Chinese IMUs

So I have received my first Chinese IMU - it has L3G4200D ADXL345 HMC5883L BMP085 sensors and a LLC built in. Looking at the PCB it is called a GY-80 - there are also GY-81, GY-86 and GY-521. I'm just waiting for a replacement Mini Pro to arrive before I can write the defines for the GY-80 (I also h...
by Katch
Mon Apr 16, 2012 10:48 pm
Forum: ESCs, propellers , servos and radios
Topic: Wobble of death
Replies: 9
Views: 2039

Re: Wobble of death

much more likely that you need to tweak PIDs and LPF to calm it down.
by Katch
Mon Apr 16, 2012 8:26 pm
Forum: Shields, boards and sensors
Topic: And another allinone board from ebay.
Replies: 9
Views: 1648

Re: And another allinone board from ebay.

I can't find any anecdotal reports on the l3g4200d gyro - which is why I fancy having a play. I have seen a video or two of quads flying with it - but you can't tell much from that.
by Katch
Mon Apr 16, 2012 6:49 pm
Forum: Shields, boards and sensors
Topic: And another allinone board from ebay.
Replies: 9
Views: 1648

Re: And another allinone board from ebay.

same seller that you linked to.
by Katch
Mon Apr 16, 2012 5:06 pm
Forum: Shields, boards and sensors
Topic: And another allinone board from ebay.
Replies: 9
Views: 1648

Re: And another allinone board from ebay.

hah just ordered one of these so in a week or two I'll be able to tell you more. Only paid £25 for mine - so thought it would be worth a play.

i'm in the same situation as you - had a FC with lots of separate BoBs for each sensor - just wanted to tidy it up.
by Katch
Sat Apr 14, 2012 12:09 am
Forum: Software development
Topic: GPS integration
Replies: 1724
Views: 486219

Re: GPS integration

Hi Guys, After 3 weeks delay (because of a design problem and reproduction) Navigatron I2C GPS modules in stocks . I 'am glad to announce that %10 discount for first 20 units http://www.flytron.com/180-648-large/i2c-gps-for-multiwii-and-others.jpg http://www.flytron.com/180-649-large/i2c-gps-for-mu...
by Katch
Mon Oct 03, 2011 10:17 am
Forum: Ideas
Topic: Alt. Hold Ideas and discussion
Replies: 193
Views: 68677

Re: Alt. Hold Ideas and discussion

Thanks Alex,

I'll try that next time I get out in the field.
by Katch
Sun Oct 02, 2011 10:34 pm
Forum: Ideas
Topic: Alt. Hold Ideas and discussion
Replies: 193
Views: 68677

Re: Alt. Hold Ideas and discussion

Just starting to try and get my Alt hold dialed in too. Having similar experiences as mr.rc and crash. Getting a yo-yo-ing quad but no real hold yet. This is on the MS version of Fabio's freeIMU. Feels like the motor compensation takes too long to respond and then over-corrects. Not very good at PID...
by Katch
Thu Sep 15, 2011 10:55 am
Forum: Connecting elements
Topic: Arduino Nano Wiring to WM+Nunchuk
Replies: 2
Views: 1090

Re: Arduino Nano Wiring to WM+Nunchuk

A4 & A5
by Katch
Tue Sep 13, 2011 2:57 pm
Forum: Software development
Topic: Win7 64Bit GUI Problem !
Replies: 14
Views: 4623

Re: Win7 64Bit GUI Problem !

I'm using x64 Windows 7 with no problems.

Make sure your Java RE is up to date.

Disconnect your multiwii from your computer and run the GUI and see if it starts.
by Katch
Mon Sep 12, 2011 10:16 pm
Forum: Connecting elements
Topic: What's Wrong ?
Replies: 9
Views: 6044

Re: What's Wrong ?

You have defined serial sum PPM, but you have it connected the normal way. Place back the // by serial sum PPM line. Ah yes didn't notice that. Do this //#define SERIAL_SUM_PPM PITCH,YAW,THROTTLE,ROLL,AUX1,AUX2,CAMPITCH,CAMROLL //For Graupner/Spektrum you don't have a SUM connection in your photos....
by Katch
Mon Sep 12, 2011 8:08 pm
Forum: Connecting elements
Topic: What's Wrong ?
Replies: 9
Views: 6044

Re: What's Wrong ?

Your Wii gyro isn't working correctly. I have not seen that one before so cannot suggest how to correctly connect it. It may not be supported.
by Katch
Fri Sep 02, 2011 11:50 am
Forum: Connecting elements
Topic: Hello and help! Trouble with nunchuck wiring/config
Replies: 4
Views: 1164

Re: Hello and help! Trouble with nunchuck wiring/config

Is the nunchuck original or clone?

If it's original are you 100% sure it's original?

Worth watching this. http://www.multiwiicopter.com/pages/videos

did you forget to jumper the 2 pins on the WMP?
by Katch
Thu Sep 01, 2011 4:39 pm
Forum: Shields, boards and sensors
Topic: Understanding I²C, LLC and Pullups
Replies: 2
Views: 966

Re: Understanding I²C, LLC and Pullups

WMP to HV side of LLC and 3.3v BMA020 to HV side of LLC and 5v BMP085 & HMC5883L to LV side of LLC and 3.3v Internal pull ups disabled and external 2k2 pull ups enabled. All the business of pull ups and LLCs is not to control the voltage supplied to the sensor (this is done by choosing where to ...
by Katch
Wed Aug 31, 2011 8:30 pm
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 84246

Re: Serial Bluetooth RF Transceiver Module RS232

Hello guys, this module its compatible with us copters. There are two androids App with works with the MultiWii system. http://wbb.multiwii.com/viewtopic.php?f=8&t=248 http://www.rcgroups.com/forums/showpost.php?p=18050473&postcount=1 Great configuration tutorial from Berkely http://wbb.mul...
by Katch
Wed Aug 31, 2011 8:34 am
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 84246

Re: Serial Bluetooth RF Transceiver Module RS232

Finally worked out how to get a bluetooth connection to the GUI on WIDCOM stack. This was only possible on Toshiba stack before so I thought I'd share the process as it's a little odd. The guide is for Windows XP and my dongle is a Belkin mini but the process may work on 7/Vista. I assume you have a...
by Katch
Tue Aug 30, 2011 1:20 pm
Forum: Software development
Topic: GPS integration
Replies: 1724
Views: 486219

Re: GPS integration

What's a good GPS module to get in order to start testing the GPS dev code?
by Katch
Sat Aug 27, 2011 4:24 pm
Forum: Software development
Topic: Tiny error in config.h
Replies: 0
Views: 532

Tiny error in config.h

It's the smallest error ever but in the interest of correctness. //#define FREEIMUv035_MS // FreeIMU v0.3.5_MS //#define FREEIMUv035_BMP // FreeIMU v0.3.5_MS should read //#define FREEIMUv035_MS // FreeIMU v0.3.5_MS //#define FREEIMUv035_BMP // FreeIMU v0.3.5_BMP
by Katch
Tue Aug 09, 2011 9:32 pm
Forum: Connecting elements
Topic: Paris v4 WP+ BMA020 BMP085
Replies: 3
Views: 2421

Re: Paris v4 WP+ BMA020 BMP085

If anyone cares and has a similar build, diagram 1 is almost correct the green and yellow wires on the bma020 are the wrong way round.

I now have a working Paris v4 with WMP and ACC. I have a BMP085 and HMC5883L on order so we'll see how that install goes next.
by Katch
Tue Aug 09, 2011 7:46 am
Forum: Connecting elements
Topic: Multimeter checking
Replies: 0
Views: 569

Multimeter checking

Just wondering how to check my Paris v4 board with a multimeter. It has HiV and LowV sides for running 5v and 3.3v sensors with a built in LCC so no need for LLC. I assume if I ground my negative meter and probe these pins on my board I can check the right voltage is coming through before attaching ...
by Katch
Thu Aug 04, 2011 4:24 pm
Forum: Connecting elements
Topic: Paris v4 WP+ BMA020 BMP085
Replies: 3
Views: 2421

Re: Paris v4 WP+ BMA020 BMP085

Hmm seems like this is more complicated than I initially thought. After further research I think this is correct. WMP & BMA020 no pullups http://i3.photobucket.com/albums/y88/Katch_Harley/Paris_v4_BMA020-1.jpg WMP & BMA020 & BMP085 - need to move WMP on to 3.3v and activate the 2k2 pullu...
by Katch
Thu Aug 04, 2011 1:51 pm
Forum: Connecting elements
Topic: Paris v4 WP+ BMA020 BMP085
Replies: 3
Views: 2421

Paris v4 WP+ BMA020 BMP085

Ok I'm building my v4 Paris MultiWii board and I have a question about wiring up the various components. Am I right in saying the WM+ gets soldered to the HV I2C on the left of the board and the BMP085 gets soldered to the LV I2C on the left of the board. As I understand it the BMA020 has a built in...