MultiWii

Cereal_Killer

Update, I moved the MAG way out on a boom, heading hold still doesn't function (even a little bit) but mag mode operation has changed quite significantly... Mag mode has such a strong influence on the copter that it overrides not only wind / drift but it actually counters my stick input, I can yaw l...

Cereal_Killer

Iirc I read your RCG thread and Walrt answers (he's here too), he knows what he's talking about so take his advice... The reason the end points are absolutely critical is they control failsafe operation, if any inputs fall below 1000uSec failsafe engauges, if they go above 2000 the FC doesn't have a...

Cereal_Killer

I have tried Horizon mode before but I find that the sticks are a bit too sensitive, all I need is a bit more power than Angle mode at the moment . Your rates are both set to 0! these are the green boxes right of the PID's in MWConfig. Try bumping the ELE/AIL up to .80-1.00 and the yaw to ~.75 and ...

Cereal_Killer

There are several things that might cause that, what other symptoms can you give us now? Take the props off and do some testing; hows it working on the ground? Was it windy? Have you started tuning it or running default gains? What's your RC rate and any expo? Are the RC inputs at an even 1500? Did ...

Cereal_Killer

Very nice, always wondered- what size is it?

After watching this I think it's time I bump my yaw rate up to 1.0 (from .85). You and I seem to have a very similar flying style!

Thank you!

Cereal_Killer

Thank you boaterguy, that's exactly what I was asking!

I wanted to get the physical antenna out of inside of my body but I knew you cant just solder a longer wire whip on it it'll be worse so I wanted to use a shielded cable to get the antenna portion outside of the body.

Cereal_Killer

That can be fixed by trimming the ACC. First make sure your model is PERFECTLY level, I use a bubble level and playing cards. Then initiate the ACC calibrate command and let that finish (~5 sec). Fly, see if its better, if not trim it (again using stick commands) Final note- actually fly it, don't j...

Cereal_Killer

I'd really like to get this working! I'll take any suggestions what to test / try, if you want to see my code or anything else I can post it up, just let me know and I can get it done. Dont know if I should run a debug on it or what (note right now I DO NOT have a wireless link but I have a bluetoot...

Cereal_Killer

FSD sorry for posting in your thread but I have a related question. I read the link above and while it was more than a little helpful in general it didnt answer my question... I know you can not change the length of the whip antennas but lets say I want to run them out threw the body of my drone to ...

Cereal_Killer

You arm with a switch or stick commands. It's not supposed to buzz on arm/disarm by stick commands, only if you arm with a switch.

Cereal_Killer

Can you show us pictures of how you have everything connected? I think the LEASE LIKELY is that there was radio interference... I had a VERY SCARY experience and a very close call a few months ago when I had a strange condition that caused failsafe to activate, deactivate and then miss an error cond...

Cereal_Killer

Hey guy's, I FINALLY stepped my game up and added a MAG sensor (I had been running with only 6DOF [MPU6050] till now). I did tons of reading, picked an HMC5883L, got it hooked up and running with zero i2C errors and found my magnetic declination (W 6, 5x which converted to decimal= -6.93). I entered...

Cereal_Killer

Do you have fail safe setup?!

Cereal_Killer

Can you please post the exact error message you're getting? Are you sure you're trying to open the correct version (for example the windown 32b version on a mac or 64bit PC)

Cereal_Killer

You dont have this active do you?

Code: Select all

#define DISABLE_SERVOS_WHEN_UNARMED

I fly with that line active but for testing I would recommend you ensure it's commented out.

Cereal_Killer

Ok yes that's a mega board. That brings me back to the only_move_servo_when_armed issue, you've tested that it still doesnt yaw even when armed? Do you have another servo to swap in (trying to determine if the servo its self is good) or do you have a servo tester? What gets me is when you say you're...

Cereal_Killer

Are you sure you're using a mega based board? If you're using either a 328P or a 32U4 then D2 is the throttle input, not an output (I say this because you mention the servo allows you to freewheel it, something it wouldnt do if you had it hooked to an output at all) If you are using a non-mega board...

Cereal_Killer

I'll suggest what I use-

Get a Devo 7E, put deviation FW on it (www.deviationTX.Com) and use DSMX receivers. You're looking about $75-85 for the 7E and a Rx. Just whatever you do- DONT buy a 7, it must be a 7E (or any of the other Devo line, just not a regular 7, those don't accept deviation FW).

Cereal_Killer

PM me your address and ill have one in you mail for you Tuesday. No charge, I have about 62517384 of them in my spare crap drawer (you would be surprised how many you find that are actually clamp on if you look close enough at the wire before you trash it).

Cereal_Killer

Wow, you and I should be bro's! (Cause apparently we have off-the-wall problems, not the normal issues...)

Try a clasp type ferrite bead on that line?

Cereal_Killer

Hi Alex, thanks for the detailed description of how it works. That's what I was initially thinking, any why I didn't think about how I might have an issue till just the other day (once I finally got around to building the test setup on a bread board). Unfortunately at the moment, the most detail I c...

Cereal_Killer

Hey guys, I need help... Since last winter, before I was using multiwii, I've been working on a micro tricopter, it's 4" wide and PCB based with all components on the single board that also serves as the frame(it's pretty much the tri version of a ProtoX) but I had a brain fart and overlooked a...

Cereal_Killer

What servo?

Cereal_Killer

I want to caution you about this, you're NEVER going to overcome the turbulence the horizontal motor causes. The main lifting rotors are going to be constantly be sucking in dirty air, it may not even fly and if it does efficiency is going to be HORRIBLE. If you're looking for a crazy project go for...

Cereal_Killer

Every thing your asking about can be done is normal multiwii (yes even the additional motor). However you need a MINIMUM of 4 rc channels for a standard multirotor, you can use a standard transmitter with 2 STICKS, but 4 CHANNELS are required- throttle, pitch, roll and yaw. With your setup of the ad...

Cereal_Killer

It's that white check box right in the middle of the screen that's labeled "YAW". The "gyro/ACC" label is confusing but all I fly is tri's and that's' the setting yo want.

Cereal_Killer

The yaw direction is no longer changed in the code, it's done in the GUI under the servo tab.

Connect, switch to the servo tab, click Go Live then check the reverse servo direction box.

Cereal_Killer

What BARO is it? Are you getting an i2C error count? Sounds now like you have some PID tuning to do, it should catch it's self and correct, not flip. Of course it's always best to have a perfectly balanced model but it shouldn't flip over just cause the battery is to heavy towards one side. Have the...

Cereal_Killer

Now I want to build a brushless Sub-200 for strictly indoors but all the good ones seem to need proprietary motors except the morphite 155 which uses standard 1306 motors. Which is fine but I want one around 120-140mm. Like the LTKR 120mm... Me too bro, I really want a LTKR120 but I've gotten on a ...

Cereal_Killer

Exactly, see how much you've learned! #define MOTOR_STOP (something like that, you seem to know the line and I'm not at my computer). If you're just taking it slow that's fine too but if you're looking for a bit of advic- throttle it up at a good rate and climb quickly to about head to chest level; ...

Cereal_Killer

The GUI data is all ok, it shouldn't reset unless you make it.

What pins / diagram are you using for your RC inputs? That Rx?

Cereal_Killer

Hey friends, i got this C2540 module off ebay , I'm cheap which is why I got it for $9 instead of a standard HM-10 module for a whopping $17 lol. BTW I'm posting in this sub-forum cause it gets the most traffic... So anyway, I've pored threw the datasheet that was provided , as well as the CC2540 pi...

Cereal_Killer

The ACC Z axis reading a random value is fine, as long as that value us steady when the copter is sitting still (mine reads ~500) Having real pull-up is is very important, personally I use 10K pull-up's, to me it's stranger that your other one works without them (only using the internal "pull-u...

Cereal_Killer

Have you verified all the axis' are orientated the right way? Both ACC roll and gyro roll move together (watching the raw data) and ACC pitch / gyro pitch and so on? I don't know you and its not that I doubt your ability, but I really think it's gonna be something basic like prop / motor direction. ...

Cereal_Killer

It's neither Seial nor PWM, arduino's analogwrite WILL NOT work. The signal is a form of PPM, it's actually a simple servo signal (that's th basics of how an RC Rx works; it output's a variable duration pulse between 1-2k uSec). The length of the on pulse controls the event. Do you have a logic anal...

Cereal_Killer

Hey guys, not a MW issue specifically but I'd rather post here than RCG... Is this a bad FET or a simple (or maybe not-so-simple) desync issue happening in this video? It will run for the full battery at <50% power, the jitter / "miss" happens only above ~60-70% and it's nearly constant ho...

Cereal_Killer

What does the tri icon look like in the GUI? Is it facing the correct direction and orientated the right way? If you're sure the motors and props are spinning correctly then most likely the gyro / sensors are getting confused and it's commanding it's self to flip over.

Cereal_Killer

Why on earth are you using internal pull-ups?! Which i2c speed are you using?

2007 is actually better than 2038 but that's controlled with your end points in your Tx

Cereal_Killer

searching for something else and ran across this image, thought it might be helpful to you.

http://www.uv3r.com/images/MultiWii_CP2102.jpeg

Edit tried to post the image directly and it was huge so here's the link...

Cereal_Killer

I dont usually check this sub-forum, sorry we missed your question for a few days... First thing you need to verify is that all your props are spinning the correct direction, some people have problems with Y4's (and Y6's) cause they flip it upside down to work on the bottom motors and then they get ...

Cereal_Killer

That define doesn't available in MultiWii 2.3, right? I found it in Multiwii 2.4. Okay, I'll try. Do I need uncomment this too? #define USE_THROTTLESERVO. As I said before, I've tried my ESC in arduino, and it works with the servo library. So, is it true that my ESC needs a servo signal? I'm sorry,...

Cereal_Killer

Hm, I'm not sure when it was added, you have 2 choices- either switch to 2.3 (or 2.4) or patch 2.0.

Cereal_Killer

I think, if he's dead set on BT control, that he should definitely use PPM, getting individual data streams will be flat out impossible, the BT module just isnt setup for that. It will be a lot easier to get the BT to output PPM data because*, as setup (and as designed). the BT module only has one o...

Cereal_Killer

Near the top, section 2 /******************************** ARM/DISARM *********************************/ /* optionally disable stick combinations to arm/disarm the motors. * In most cases one of the two options to arm/disarm via TX stick is sufficient */ //#define ALLOW_ARM_DISARM_VIA_TX_YAW //#defin...

Cereal_Killer

I'm afraid you're confused about what BT is used for on multiwii...

BT connects to the serial port and is used for configuring / setup / telemetry, no RC data is transmitted from the phone over BT and into the MW. Also there's no way to get a PPM steam out of the BT module.

Cereal_Killer

The problem is that the signal sent to a BLDC ESC is a servo signal, it varies the pulse duration. A brushed ESC works 100% differently, it uses a PWM signal (varies the duty cycle). This is for sure your problem, you must tell it you're using brushed motors... First use this ESC choice //#define MI...

Cereal_Killer

The basics first, you did enable brushed motor ESC output right? Can you post your code? Either as a .zip or in [code] tags in a post. Just so I'm clear, do you need the motor to continue going one direction? I'm not sure how an ornithopter works, does the motor have to reverse back and forth a mill...

Cereal_Killer

Oh man there has been a lot of similar posts recently, I dont understand why people are ok building these multi-hundreds of dollar machines and then trying to fly them with a $35 tx... Just doesnt make sense to me! Anyway bro, to tell you the truth, [not to be a dick] but you'll probably never get i...

Cereal_Killer

Hey man just wanted to let you know I'm not ignoring you, I have no idea, as I mentioned I always but the arduino nano (or other with on-board USB->UART) so I've never actually had to deal with a FDTI type converter. This guys answer (post 2) looks helpful m Maybe Google target search there or spark...

Cereal_Killer

My advice pretty much mirrors FSDrones with the exception that I'd recommend a Devo 7E (for pretty much the same price) but a 9x is a fine choice too. Having said that, are your "sticks" all centered? Are you able to give it stick commands? Does it always happen to drift the same way? Have...

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