Search found 33 matches

by natael
Mon Feb 03, 2014 8:58 am
Forum: Software development
Topic: export vibrations log as csv from multiwiiconf ?
Replies: 6
Views: 857

Re: export vibrations log as csv from multiwiiconf ?

After a few measurements and a deeper look in the Sensors sketch, I am puzzled with the differences of low-pass between MPU6050-ACC and BMA180, could someone help me understand ? Default Low-pass for MPU6050, ACC is 260 Hz. i2c_writeReg(MPU6050_ADDRESS, 0x1A, MPU6050_DLPF_CFG); //CONFIG -- EXT_SYNC_...
by natael
Tue Jan 28, 2014 9:44 pm
Forum: Software development
Topic: export vibrations log as csv from multiwiiconf ?
Replies: 6
Views: 857

Re: export vibrations log as csv from multiwiiconf ?

Alex, merci beaucoup for taking the time for this detailed answer. This little thread helped me finish a Matlab/arduino/multiwii data logger for my vibrations test bench. I'll send a few samples here after i've done a couple tests on different motor brands, which will ultimately go on a comrade's we...
by natael
Mon Jan 27, 2014 11:14 am
Forum: Software development
Topic: export vibrations log as csv from multiwiiconf ?
Replies: 6
Views: 857

Re: export vibrations log as csv from multiwiiconf ?

acc (and gyro) values are usually divided by 4 or 8 for some idiotic reason in multiwii. you better check that the driver doesn't d o something like >> 4 or >> 2 in getADC() function. Thank you for replying timecop. I had a look again. Indeed, it seems to be not only divided by 4, but there's also ...
by natael
Mon Jan 27, 2014 12:56 am
Forum: Software development
Topic: export vibrations log as csv from multiwiiconf ?
Replies: 6
Views: 857

Re: export vibrations log as csv from multiwiiconf ?

Hi, Since i had no luck with this question, i've started coding my own vibration logger that interfaces with Matlab for real time measurements. ITG3205 was easy, lots of tutorials. However, for the BMA180, i had better luck reading through the multiwii code, to get the part that exported the accADC ...
by natael
Fri Jan 17, 2014 3:53 pm
Forum: Software development
Topic: export vibrations log as csv from multiwiiconf ?
Replies: 6
Views: 857

export vibrations log as csv from multiwiiconf ?

Hi, The only sort of related answers to this topic question i could found were at http://www.multiwii.com/forum/viewtopic.php?f=8&t=4348&p=44553&hilit=csv#p44553 and with the EZ-GUI app. I was hoping there'd be a simpler solution, already implemented in the multiwiiconf GUI, to export th...
by natael
Fri Jan 03, 2014 12:45 am
Forum: ESCs, propellers , servos and radios
Topic: One hot ESC
Replies: 11
Views: 2858

Re: One hot ESC

I actually have 30A esc, simonk, from RCTimer, with an external bec, no hot esc. Even after flight, temperature is still reasonable.
by natael
Sat Nov 30, 2013 3:15 pm
Forum: Connecting elements
Topic: I2C GPS with arduino pro mini
Replies: 3
Views: 6630

Re: I2C GPS with arduino pro mini

Hi, I'm interested in your diy I2C Nav for my gps neo 6M. I have a custom FC, using a Pro Mini. Problem is, i'm out of arduino pro mini but i have 2 arduino pro micro lying around ! Can i still follow your tracks ? Are you actually done with this I2C nav ? Are the Pro micro pins the same for this ? ...
by natael
Sun Sep 08, 2013 9:36 am
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Problems with vbat

I don't get it at all. Why would i use a 2.2 release gui with a shared FW ?? i've been using official release 2.2 with its GUI. I found the shared codes, but didn't download them as i didn't know if i needed them. I'm not using a mix of the 2 (i.e official + shared), have i said otherwise ? When i ...
by natael
Sun Sep 08, 2013 8:29 am
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Problems with vbat

Well, i am using the official 2.2, and my multimeter agrees with the GUI. To hit reset solved my vbatscale-related problem. I have also the frsky FBVS01 displaying the voltage on my radio. Gives me another independent check. I have an accuracy of 0.05V on GUI though. Not 0.001 contrary to what the ...
by natael
Sun Sep 08, 2013 1:01 am
Forum: ESCs, propellers , servos and radios
Topic: One hot ESC
Replies: 11
Views: 2858

One hot ESC

scrat wrote:This is not good. Maybe your flight controller is having a problem?


Nope... It works fine with another set of different esc-motors. No excessive heat.
by natael
Sun Sep 08, 2013 12:58 am
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

"Arduino" Pro Micro

I'm trying to connect a baro BMP085 on a flyduino pro micro. So far I was using one of the early V3 board with only gyros + Acc (wmp+ & nunchuck). The SDA and SCL, according to earlier reading are pin D2 and D3. However, connecting my baro to these ports does not work, i2c errors (i've updated ...
by natael
Sun Sep 08, 2013 12:31 am
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Problems with vbat

Ok, problem solved, reset in GUI in official release was enough to display the right voltage. I also found the shared version of the code. Not sure if i need it though ? now that everything is working. I'm pretty sure the release gui by itself will not fix the problem. there is no code behind that ...
by natael
Sat Sep 07, 2013 11:21 am
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Re: Problems with vbat

Ok, problem solved, reset in GUI in official release was enough to display the right voltage.
I also found the shared version of the code. Not sure if i need it though ? now that everything is working.
by natael
Sat Sep 07, 2013 9:25 am
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Problems with vbat

ok, I ran into this issue, as well as the throttle issue. and as others pointed out, the MW GUI is the problem. If you are using code in shared, you must use the Gui from shared, as that has the page that allows you to set the VBATSCALE, MINTHrOTTLE, etc. Without this, I think they just get a value...
by natael
Fri Sep 06, 2013 11:22 pm
Forum: Software development
Topic: Problems with vbat
Replies: 21
Views: 2747

Re: Problems with vbat

Does this also mean that, even if we close the GUI, restart the computer, restart the board, and re Open the GUI, we'd still have to hit Reset in GUI for changes to take effect ?
by natael
Fri Sep 06, 2013 10:40 am
Forum: General discussions
Topic: How to set VBAT (Ver2.1)
Replies: 34
Views: 16931

Re: How to set VBAT (Ver2.1)

I'm currently trying to set VBAT up on my crius all in one pro. Is it my imagination or are R1 and R2 the wrong way around in the diagram at the start of this thread given that R1 = 33K and R2 = 51K? R1 should be the bigger resistor if you want less voltage dropped between the centre point and grou...
by natael
Thu Sep 05, 2013 1:18 pm
Forum: Software development
Topic: What's all this I2C failure stuff, anyhow?
Replies: 27
Views: 13590

Re: What's all this I2C failure stuff, anyhow?

I finally found 2k2 resistors and tried to guess according to the almost-invisible tracks from the pull-up patches up to the Pro Micro pins, in order to find how to position the resistors : IMG_2876.jpg I re-commented the internal pull ups in config.h, uncommented the bmp085 and all problems were so...
by natael
Thu Sep 05, 2013 10:23 am
Forum: Software development
Topic: What's all this I2C failure stuff, anyhow?
Replies: 27
Views: 13590

Re: What's all this I2C failure stuff, anyhow?

Hi, I'm trying to fix some i2c issues after trying to connect a baro bmp085. I have the V3 board for Pro Micro (not mini) from flyduino (see picture of both sides), with wmp+ and ACC nunchk (they alone never caused any i2c issues though), and i'd like to follow the recommended wiring/setup exposed i...
by natael
Tue Sep 03, 2013 11:26 pm
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

"Arduino" Pro Micro

I'm trying to connect a baro BMP085 on a flyduino pro micro. So far I was using one of the early V3 board with only gyros + Acc (wmp+ & nunchuck). The SDA and SCL, according to earlier reading are pin D2 and D3. However, connecting my baro to these ports does not work, i2c errors (i've updated t...
by natael
Tue Aug 27, 2013 1:12 pm
Forum: Getting Started - MultiWii config and setup
Topic: Horizontal horizon off after ACC calibration
Replies: 3
Views: 485

Re: Horizontal horizon off after ACC calibration

Another question, i'm a bit confused with gyros and ACC. Is the artificial horizon reading from gyros or from ACC ??? They're both attached next to each other so not sure which one i should check for orientation, and auto-level needs ACC, hence the question.
by natael
Tue Aug 27, 2013 12:55 pm
Forum: Getting Started - MultiWii config and setup
Topic: Horizontal horizon off after ACC calibration
Replies: 3
Views: 485

Re: Horizontal horizon off after ACC calibration

ok, that's what i had understood, and it is always level when i turn it on. So, my questions remains. Any idea what's causing this inconsistency ?
by natael
Tue Aug 27, 2013 12:36 pm
Forum: Getting Started - MultiWii config and setup
Topic: Horizontal horizon off after ACC calibration
Replies: 3
Views: 485

Horizontal horizon off after ACC calibration

Hi, I'm using Multiwii 2.2, arduino pro micro with wmp gyros and nunchuck Acc. It flies quite steady provided i use a lot of trim. Indeed, using the MultiwiiConf, after i callibrate the ACC, the artificial horizon is always off by about 5 degrees of roll, 2 to 3 degrees of pitch. My sensors are set ...
by natael
Sat Jul 13, 2013 12:02 pm
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

Re: "Arduino" Pro Micro

I tried to connect the buzzer on the pro micro. I tried to connect it with D8, and uncommented also this line (in addition to the #define Buzzer) : /********************************** Buzzer Pin **********************************/ /* this moves the Buzzer pin from TXO to D8 for use with ppm sum or s...
by natael
Sat Jul 13, 2013 10:17 am
Forum: Ideas
Topic: Inflight ACC-calibration
Replies: 127
Views: 43161

Re: Inflight ACC-calibration

Hi, I'm confused with the connection diagrams for the piezzo-buzzer (for the in-flight calibration): m and the bit of code in config.h saying : /********************************** Buzzer Pin **********************************/ /* this moves the Buzzer pin from TXO to D8 for use with ppm sum or spect...
by natael
Sat Jul 06, 2013 11:49 am
Forum: ESCs, propellers , servos and radios
Topic: One hot ESC
Replies: 11
Views: 2858

Re: One hot ESC

That did not solve the pb, in addition, i removed this esc + motor and left the other two plugged in. Then one of the remaining esc is getting as hot, with motor cold. Another thing, everything is cold when the servo cables of the esc aren't plugged in. This doesn't make sense at all. Any idea ? EDI...
by natael
Sat Jun 15, 2013 2:57 pm
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

"Arduino" Pro Micro

Ok, done. Didn't need to change anything in MW 2.2 indeed. Got EZ-GUI from android working perfectly.

Thanks
by natael
Thu Jun 13, 2013 11:26 pm
Forum: ESCs, propellers , servos and radios
Topic: One hot ESC
Replies: 11
Views: 2858

One hot ESC

Hi, I have a similar problem with one esc getting much hotter than the other ones. ESCs are HK blueseries 12A, that i flashed with Simonk. Anyone having these ESCs had that problem ? I haven't tried to exchange ESC with another arm/motor to pinpoint the source of the problem, but i'd like your opini...
by natael
Sun Jun 09, 2013 6:21 pm
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

Re: "Arduino" Pro Micro

Just making sure, does the bluetooth module connect and work with the Pro Micro in the exact same way as the Pro mini ? No difference whatsoever ?
by natael
Fri Oct 26, 2012 7:00 pm
Forum: MultiWii tweaking - flying experience
Topic: Stable or acro mode?
Replies: 13
Views: 4334

Re: Stable or acro mode?

Yes, Acc is calibrated. Got 0,0,200 Thank you very much for this video which really explains things well. I indeed had it all wrong (which i expected !). I had misread one of the early Alexinparis posts that introduced the nunchuk Acc, where i thought that "low" "mid" "high&...
by natael
Fri Oct 26, 2012 1:37 pm
Forum: MultiWii tweaking - flying experience
Topic: Stable or acro mode?
Replies: 13
Views: 4334

Re: Stable or acro mode?

Hi, I added a few days ago a nunchuk acc, thus i only know the multiwii on version 2.1. I'm trying to check if my channel 5 do its job by selecting whether i want the stable mode or not. I don't have other sensors (no baro, no sonar,...). I'm using a turnigy 9x flashed with ER9X. FrSky module. V8FRI...
by natael
Thu Oct 18, 2012 4:55 pm
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

Re: "Arduino" Pro Micro

ok, thanks for the prompt answer, got it already. So, since one does not specify if we're using a micro or a mini, this means the program tests which of these 2 is being used at initial setup and defines the pin numbers accordingly ? is that correct ? Or do I still need to uncomment something in a b...
by natael
Thu Oct 18, 2012 11:28 am
Forum: Software development
Topic: "Arduino" Pro Micro
Replies: 131
Views: 38562

Re: "Arduino" Pro Micro

Hi, This my first attempt at asking for some help, on the programming side. I have finished assembling a pro micro based tricopter, using the one from Flyduino : http://flyduino.net/Flyduino-Pro-Micro-16Mhz-5V-Schwarz-16mm-PCB_1 so, not the one from Sparkfun. The flyduino description says it is mean...
by natael
Sat Sep 15, 2012 12:30 pm
Forum: ESCs, propellers , servos and radios
Topic: How to chose radio transmitter/receiver
Replies: 8
Views: 16000

Re: How to chose radio transmitter/receiver

Hi, I'm digging out this post instead of creating a new one for the same question. I was looking for information on the Turnigy 9x (i'm a noob at rc, not in electronics/programming, I'm just at the beginning of a DIY tricopter), which got me there. I wondered seeing that last reply : if I go for the...