MultiWii

waltr

YES, a successful first flight. Good going and it was worth persevering. Sounds like you have the basics of general flying so you'll do fine. The second build will be much easier. I have a new build going and maidened in the basement last night. Its it was 15°F (-9°C) as a high today so way too cold...

waltr

The config.h is a text file that can be edited in NotePAd, NotePad++, WordPad (or MAC equivalents) or in the Arduino IDE editor. The Arduino Web site has some getting started guides that may be worth reading. The Arduino IDE is not hard to use and I think it does run on a MAC. In the config.h file y...

waltr

Ok, that isn't it. The way I setup for flight battery telemetry is (using CF): With the proper Voltage Divider (FrSky FBVS resistor values) connect to the D4R's AD2 pin. Then in the Taranis set the AD2 scaling for the max Voltage of the divider you selected. I use the 6:1 divider so the full scale V...

waltr

Yes it is but is this correct?????????????????

waltr

Read the MultiWii WIKI, Beginner's troubleshooting and follow the entire setup procedure.
This is a common beginner's problem due to misconnecting motor/esc, RX and/or improper TX setup.

waltr

set vbatscale = 110 ???

waltr

Never flew helis but have read the MultiRotors fly like a CP Heli. However, any heli flying experience should be helpful for flying a MR. You will just have to try flying in Arco mode and if you have trouble then switch to Angle mode. I flew MR's for the first couple of months in Angle mode and then...

waltr

Sounds like you are making good progress now. I like the motors running when armed. This is also due to me flying Aerobatics and never want the the motors to stop since they don't start quickly. I have minthrottle up higher, between 1150 and 1350. This is lower enough not to left but high enough to ...

waltr

ridgeracer wrote:My second problem is that I have a slight drift to the back and left in all modes. How do I correct for this?

This is typically caused by improper TX stick center value setup. Re-check that the sticks values are the same as the mid_rc value read out in the CLI.

waltr

The Pro Micro (32U4) is a great board/processor for simple copters like Aerobatic copters (use these on my Warp Quads) but is limited in hardware and memory including serial ports. If you really want multiple serial ports, BT, OSD, etc then I suggest one on the STM32 boards and run CleanFlight. Then...

waltr

Read about the MSP in the MultiWii WIKI.

waltr

yes, Congratulations! Transmitter throttle trim set very low (on a scale of 0 to -100 my setting is -90). On the Futaba 9C, the trim settings are centered at 0. You can adjust the trim up (+) or down (-) from 0 to 100. There is also a sub-trim for fine tuning. I now have full range of throttle contr...

waltr

I haven't seen that issue but:
What FC board are you using?
Which Firmware did you install?
No one can guess of what the Angle mode issue is without this info.

If the copter is NOT IN THE AIR then the motor speeds will NOT be steady.
Read thew MultiWii WIKI, beginner's troubleshooting.

waltr

"With all sensors calibrated correctly and mag declination set"; what does mag declination set mean? Mag declination is the difference of Magnetic North from True North. Look this up on Wikipdeia and then Goggle for a Mag Dec map for your location. Note: this is onle needed if you use any...

waltr

1- looks like the min_throttle value is a bit too low. What is it set to? 2- Once it lifts off there is an oscillation. This can be: a. Prop and/or motors out of balance. Check and balance the props and motors. b. The Roll & Pitch 'P' or 'I' PID values may be too high. Once the props/motors are ...

waltr

Did you follow the recommendations in the files on HK product page? m Are the ESC's getting power? Do they beep? They are "opto" which really means they do not have a BEC to power the FC & RX. Do you have a BEC powering the FC/RX? When you connected the ESCs directly to the RX do they ...

waltr

Motors/ESCs connected to correct pins?
Sig to Sig, gnd to grn? Double check this.

Correct #defines used in the Config.h file?

FYI:
Do not double post or start a new post of the same issue.

waltr

Which method did you use to Cal the ESCs?

Are you ARMing with TX stick commands?

waltr

They have worked very well for lots of people (check the Warp Quad thread in RCGroups forum).
There have been a few go bad but no more than any other RX.

waltr

Go read the MultiWii Wiki to learn how to properly setup and trim (look up the ACC TRIM stick command).

You will also need to tune the PIDs, Rates and Expo.
Copters crash and crashing is part of learning how to fly.

waltr

Did you Cal the ESCs???
Are the ESCs connected on the correct FC pins?
Ground to ground, signal to signal?
Are the motors correctly wired to the ESCs?

Everything else looks ok and since the LED comes on when Armed and the Gui show motor values this is not in the MW code.

waltr

Some thing is terribly wrong. Back up and re-do the basic TX setup using the MWconf.exe GUI to check the stick values. Do remove the props for this. Check the MultiWii WIKI, beginner's troubleshooting and check everything in the list. Re-set all parameter is MW back to defaults to fix anything you c...

waltr

Yes, works well with MW. Go to the Warp Quad web site and check the "How To'" for detailed info on using a lemon sat with MW.

waltr

Thanks. I couldn't find him last night. Updated the link in my bookmarks.

waltr

You install these "Other" components wrong on onto the wrong places.
Remove them one by one until the aux starts working again. Then the last component removed to wrong.

waltr

TeslaK20 wrote:First, what is a control loop?

Well you really need to know and understand control loops very, very well to do what you want.
Start by doing a lot of google searches and a lots of reading.
Otherwise you will not get any of this the work.

waltr

Look up MSP in the MultiWii WIKI and also study the MW code as well as do some google searches on this since it has been done.

waltr

Real sorry you bought those junk ESCs and the motors are pobably not much better.
Many people have built tri-copter and they fly well.

Send them back to the seller and buy well know ESCs and motors.

waltr

Lets see if I understand. You have some RF device with control inputs. You have a matching RF device (RX) that receives the control inputs. This RF device passes the control inputs to an Arduino. The Arduino then sends the control values to the MWC. If this is correct then: The MWC can accept 4 (or ...

waltr

Sounds like you might have the wrong board type defined.
Is this MW2.3?

I take it you see the stick values in the MW GUI, right?

waltr

Ok, at least it is now flying and you can move on to tuning.

It is unfortunate that there is such junk being sold and you bought some of it.

waltr

Ok, thanks for reporting back your results.
It does sound like it is the FC board. Could be the XTAL drifts badly with temperature or there could be a bad solder joint that acts up when cold.

I have not had problems with any of the FCs I run in the cold.

waltr

My question is instead of receiver can i use ardunio nano or mega? What??? How would an Arduino receive the radio's control signals????????? What radio do you have? You really need to do an lot of reading then goggle searches and much more reading. Start with the MultiWii WIKI, then read the Nazs32...

waltr

I did not see that ESC in the pdf from BLHeli. So don't know which one it is yet. You may not need to re-FLASH but only change the settings (Timing,V Cut-off, etc). For FLASHing through the connector requires the Atmel chip to have the boot-loader in FLASH. Did find these: m Here is a link to SimonK...

waltr

Well they do state this about the ESC: Programmable items: Brake setting: brake enabled / brake disabled. Battery type: Li-xx(Li-ion or LiPo) / Ni-xx(NiMh or NiCd). Low voltage protection mode (cutoff mode): gradually reduce the output power / cutoff the output power. Low voltage cutoff protection t...

waltr

Ahh...sorry I missed the 8 motor part.
Does the Fyduino app create .h and .ccp files? Or does it just produce the hex file with lots of magic?

I'm sure the MotoWii code could be modified to support more motors.
PM Moto Moto and ask him if he can do this.

waltr

What if its long cable problem? PWM signal somehow is reduced and ESC cannot read it? But its digital communication and not at high frequencies. This can be a problem if you do not have the signal ground wire also connected. But it sounded like you are using all three ESC control wires so this shou...

waltr

This is really the wrong forum to discuss FPV.
Try the FPVLAB forum and then read the beginners 'sticky' in the FAQ sub-forum. This will answer all your questions.

waltr

I use the V3 code in this RCG post:
http://www.rcgroups.com/forums/showpost ... ostcount=3
Works well on Flip Pro, NanoWii and MotorWii.

waltr

A bad ESC can cause that problem so hopefully this is fixed. I have read that the Yaw Servo can be tricky. So search and read. It depends on several factors as to whether you can connect all the ESC's BECs together. Typically this can be done if they all use a linear regulator (7805) but do check th...

waltr

There is basic info on the MSP in the multiwii wiki.
The command table is not up to date therefore you will need to study the source code to get all of the Valid commands and how they are used.

waltr

That is working exactly as it should when in ACRO flight mode.
This is also called Rate mode and Does Not self-level. this is the only mode I and many others fly in since it gives the most direct control.

Go read the MultiWii WIKI to learn how to setup the MWC for self-level.

waltr

#define FREEIMUv035_BMP // FreeIMU v0.3.5_BMP

is probably the wrong board.
Read the docs for the board you have to select the correct board type in the config.h file.

Also, double check the RX to FC connection for the Pitch RC channel. It could be just a bad cable or the cabled connected backwards.

waltr

Read the MultiWii Wiki, beginner's section.

waltr

Did you properly setup the TX's stick center and end point values?

waltr

There is MW Code with OneShot only for Atmega32U4 processors. These are the NanoWii, MotoWii and Flip Pro (& clone) boards. Code can be found in the Warp Quad thread in the RCGroups/multirotors/multirotor Talk sub forum and maybe on the Flyduino wen site for the NanoWii. The 328 based MWC's are ...

waltr

There are many Arduino Projects on the Web to use this sensor. Just do some goggle searches. As for hardware the typical Arduino processor run on 5V and this sensor runs on 3.3V. Therefore you need to have a 3.3V PS and then a level converter on the I2C data and clock lines. Again, this is covered i...

waltr

First the sticks at center are not EXACTLY 1500. Fix this with the TX sub-trims. What are the stick end point values? If they are outside the mincheck & maxcheck values then they are ok (this is needed for stick commands to work). Tri-copters can be a little tricky to setup. Ensure that the prop...

waltr

Could be a PID tuning issue. Did you put in the PIDs you used on the previous MW version?

waltr

Ok, that's better. At less than idle speed there will be some variation in the motors. Yaw just needs some trimming, is the Yaw stick value exactly 1500 when centered? If not fix this. Also ensure that all the motors are exactly square with the frame. If a motor is slightly tilted then this will cau...

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