MultiWii

demands

Well wapko, I'm pretty satisfied with the 6dof itself, but it's not very good for MW... Although I still use it (the acc), if I were to build another *copter, I would use I2C sensors only... I have the acc working, you can use the "standard" ADCACC code with a new value for acc_1g (somethi...

demands

Haven't been able to find a good list of pre-flight steps... Could someone please explain which steps should be carried out before flying?? What needs to be done once (only once, or every now and then), and what should be done before each flight? I'm thinking about calibration etc, not PID tuning......

demands

Lucky me

And thanks Lapino!
I actually cut the frame before you answered, and they're 45 cm motor to CG... Should be a good start (I can shorten them if needed in the future)...

//demands

demands

Common problem, when you move from a public hosted to a private solution... Personally I don't think it's much of an issue, but I'll throw in two different suggestions: Since you have access to the DB on this new forum, one way would be to simply create a script which will search/replace "wbb.m...

demands

Well, not that I'm an expert, I'm a beginner myself, but I'd suggest you start by taking some high-res detailed photos of your board and soldering so that people may have a look and determine if everything looks alright.

demands

Help My new frame is now partially assembled, but so far the arm length is ~75cm (~30"), waiting to be cut... I have been trying to read as much as possible online, but almost all threads talk about quad, very few cover tri's... So, how big should my (newbie) tri frame be? It's square CF tubes,...

demands

Only because I have one , I'll throw in: How about mounting an ultrasonic range sensor, faced down, and mixing with? Should be good up to at least 7-10 meters, depending on sensor (possibly even more)... Of course it makes the terrain a new factor, but maybe it also makes it possible to fly e.g. 1m ...

demands

Thanks Alex, I've now tested this setup on a breadboard, and it seems to be working really nice!

demands

Hi, Just started building my carbon fiber frame, I will upload pictures eventually... Right now I can't decide on how to attach the booms to the center body. The booms (10mm square carbon fiber tubes) will be attached between two 1mm carbon fiber plates... I know I could just use epoxi, and any addi...

demands

Bump Would very much appriciate some feedback on my last post... Got my last parts from HK and ELFA today (feels like christmas ) so I'll start assembling soon... My biggest questionmark is when to use Raw and when to use VCC (on a 5v Arduino) Shouldn't the power from the ESC BEC be regulated 5v (th...

demands

Ok so I've thought some more about this... #1, the FAQ states it should be fine to power the WM+ with 5v as it has a built-in regulator. #2, the FAQ states the WM+ should be the only sensor which may be required to reset through pin 12. So, my new thoughts are, and I wonder if this is a better/worse...

demands

Ahh, thank you as well mr.rc-cam! Now I understand it better... Regarding the current draw, can anyone tell me the (approx) peak current draw of a WM+? That would be very helpful, as I don't have a working amp-meter at the moment... The rest of the circuit (all sensors except WM+) should have a peak...

demands

Helps alot, thank you Patrik!
Turns out pretty much as I expected, but I wanted to be 100% sure...
I didn't think of the Baro being sensitive to wind, lucky I haven't started assemble the tri yet...
Is keeping it away from prop thrust enough, or should I shield it in some way??

demands

I thought this was going to be a "no-brainer" for you guys with knowledge

No one with experience of these sensors want to answer?

demands

Thanks Alex! But I must ask, are you sure the LLC is optional?? The Arduino itself is 5v, and all sensors 3v3... I risk frying my sensors if I connect I2C directly (as the Arduino uses 5v logic)... Or? Does it hurt to have the LLC? I don't want to risk seeing magic smoke... If I keep the LLC, should...

demands

Hi, I was hoping maybe someone could have a quick look at a schematic I made, before I start soldering my tri... Don't care about the actual placement/direction of sensors, I have another thread for that here http://www.multiwii.com/forum/viewtopic.php?f=6&t=574, I just want a confirmation on th...

demands

Hi, I just wanted to hear if sensor placement has any significance. I don't have any board like the PARIS, just a bunch of BoB's... Though I haven't started on the tricopter frame yet (waiting for carbon fiber), I think I'm going to build a multi-layer body (sandwich-style), with different parts in ...

demands

290 - -1g 425 - +1g Ok, I think I understand it New day, new brain Full range from +1g to -1g is 425-290 = 135 To center 0g at 0 in MWC, divide by 2 (=67,5) giving -1g = -67,5 and 1g = 67,5, thus 0g = 0 As I see it, my biggest mistake was assuming 290 represented 0g. Didn't know it was -1g. Think I...

demands

Just reverted back to original ADCACC code, though setting acc_1g to 68 as proposed in this thread: http://www.multiwii.com/forum/viewtopic.php?f=8&t=561 Worked perfectly, I'd suggest you read the thread... It turned into a "acc_1g for Z axis on ADXL335"-thread Well, the axis' seems in...

demands

Well ziss_dm and Alex, you're both saying the same thing, so I don't mean to argue, you know this better than I do... I'm just hoping to understand But I thought, when lying flat (i.e. 0/360 deg, no rotation around either X nor Y), the Z axis experienced 1g, and when upside down (i.e. 180 deg), 0g. ...

demands

The rest of application uses acc_1G as a reference of the resolution. Ah, why didn't I think of that, makes sense... This is strange, could you please describe what was wrong? Well, I'll try, here it comes: I'm using a 3v3 sensor (ADXL335) connected to a 5v arduino without AREF, which doesn't give ...

demands

Well, it answers some questions, such as values being signed 16bit, i.e. -32767 to +32768. Calibration is also clear, measuring the zero point through averaging 400 readings (think I saw this in the code somewhere)... But how can the program account for different ranges and resolution for accADC??? ...

demands

In the code I've seen that the common function calls after reading ACC and GYRO values are ACC_ORIENTATION(X, Y, Z) and GYRO_ORIENTATION(X, Y, Z). When adding new sensors (such as an analogous gyro), how should one use these functions? Are the values supposed to be in a specific range/format. Positi...

demands

New code looks good, I have acc X = A1, acc Y = A2 and acc Z = A3... I'm currently using Arduino Duemilanove, which has a regulated 3.3v... I think everything looks good (remember my noobie status ) in MWConf GUI, although the animations are very very slow compared to when I turn the the breadboard,...

demands

Just tested your code... Seems to be working good... One question though, are you using this with or without 3.3v AREF?? I tested without AREF, which seems to be working (resolution is so-so)... With AREF, nothing's working, the Tx on Duemi stops working if I have 3.3v AREF... Since my ADXL335 is pa...

demands

Just replaced (uninstalled) JDK 6 with JDK 7... Now I get an error "can't find javaw.exe" when trying to run a compiled standalone version of MWConf (tried 32 and 64 bit)... Running through Processing works though, and javaw.exe does exist (i.e. it can be manually executed from a command-p...

demands

I get the exact same problem as mac...
Tried 1.7 and trunk, sometimes the program starts, sometimes it doesn't
Sometimes I can establish a connection, sometimes only Rx blinks on the Duemi, and sometimes it just doesn't connect...
Any help would be appriciated...

demands

Just tested, I don't know where I got the idea it wouldn't work *stupid*...

My bad

demands

Hi, Although I still haven't compiled and uploaded any version to my Duemi yet, I've noticed one big difference between 1.7 Tag and Trunk/Dev version. 1.7 is one file only, I guess it's the only file needed, which can be compiled/uploaded through Arduino IDE...(??) But, trunk/dev version consists of...

demands

Thank you very much guys! This weeks shopping list from HK looks like this (ordered yesterday): ⋅ Turnigy 9X 9Ch Transmitter w/ Module & 8ch Receiver (Mode 2) (v2 Firmware) ⋅ Turnigy 9X LCD Backlight Kit - Blue (DIY) ⋅ FrSky DHT 8ch DIY Telemetry Compatible Transmit...

demands

I happen to have som GWS EP props I'd like to try... I have both 1047 and 8040 (though mine are black): m m They have a drilled 3mm hole, and I want them mounted on 3mm motor shafts... Can someone Please tell me how to make this happen?? Can't seem to find any (normal) way of mounting them... If it'...

demands

Thanks captaingeek, I've looked at the FlySky's you suggested. But I haven't found any retailer shipping to Sweden... As of right now, I'm looking at HK, and have a couple of suggestions myself (maybe bad ones, I don't know). I would appriciate comments/rating on the following, all found on HK. Is t...

demands

Hi all, I would very much appriciate help in chosing a radio to use for my tricopter build. I'm building my first *copter, and want a radio which is "future-proof" though not to expensive. I would also like a receiver which provides PPM directly, so I don't need to hack/convert it... So fa...

demands

Thanks Alex, I guess the code in "ADXL335 analog ACC" (http://wbb.multiwii.com/viewtopic.php?f=6&t=521) is sufficient for the ADXL335, it seems to account for the acc_1G... I'll try it out with the Config GUI and my Duemi... And, I'll try to figure out how to add functionality to handl...

demands

Hi everybody, To start with, I'm completely new to multicopters, just started to build (get the parts) to my first tricopter. I have some components, and I would very much like to know if they will work. I bought most of my parts a year ago, before I heard about MultiWii, thinking I'd write the sw m...

MultiWii

Search found 35 matches

Re: Sparkfun Razor 6DOF and Duemilanove

Pre-flight check/prep

Re: Tricopter size???!

Re: Redirect old URLs to the new forum URLs

Re: Need help with my multiwii!!

Tricopter size???!

Re: Improving Altitude Hold Performance

Re: Double check my wiring

Carbon fiber Tri frame

Re: Double check my wiring

Re: Double check my wiring

Re: Double check my wiring

Re: Sensor placement

Re: Sensor placement

Re: Double check my wiring

Double check my wiring

Sensor placement

Re: Sensor values

Re: ADXL335 analog ACC

Re: Sensor values

Re: Sensor values

Re: Sensor values

Sensor values

Re: ADXL335 analog ACC

Re: ADXL335 analog ACC

Re: V1.xxx7 GUI display problem

Re: V1.xxx7 GUI display problem

Re: Explain trunk/dev source usage

Explain trunk/dev source usage

Re: How to chose radio transmitter/receiver

Mounting GWS EP props

Re: How to chose radio transmitter/receiver

How to chose radio transmitter/receiver

Re: Sparkfun Razor 6DOF and Duemilanove

Sparkfun Razor 6DOF and Duemilanove