MultiWii

Rob

Which BL-ESC' s you are using? Maybe you need to reflash them with beter software

Rob

Can you see the stick movements on the multiwi software?

Rob

Check motor connections, it looks like they are exchanged

Rob

Which firmware are you using?

Regards,

Rob

Rob

This design from 2011 works great with this firmware. I redesigned the PCB and going to make some prototypes. If there is interest I can publish the design. (after I test the prototypes) Its a very robust and cheap design on a double sided board. Al the credits for the good Quality are for ziss_dm !...

Rob

It looks like unwanted software interrupt...... Floating input somewhere?

Best regards,

Rob

Rob

I've been doing more or less tests to see that mission navigation is working properly. I did change baro calculation from float to integer on this flight in preparation for optimizations in smoothing out the readings. I will continue when 2.4 is officially out. RDAOqBvfwfk Am I the only one flying ...

Rob

Nice test Leo..... Looks good....

Rob

Maybe its time to design a new Multiwii controller with everything we want on it........

With good quality components and designed with Multiwii toughts.......

Rob

I think it helps if you give more information:

- What kind of act
- What do you expect
- what kind of copters are your own

regards,

Rob

Rob

Thanks copterrichie,

Thanks, now I'm also addicted to this PSoc controler.
Already have building Some products with it.

For quick test I use:

http://www.cypress.com/?rid=77780

Time to port Multiwii to PSoc?

Rob

Thanks for this information, I ordered a few for evaluation.

Best regards,

Rob

Rob

Yes, but it's à good start, for most of the models.

Rob

Rob

Google controlp5 and you Will find.......

Rob

I miss the english version, french is hard to read.

Best regards

Rob

Rob

Yes, this works bood, but there are cheaper solutions.

Rob

Rob

I'm working on the code, but weather does not allow outside testing, which is important to dial in the autoland parameters. I hope weather clears out at the second half of the week and I can make the necessary testing and release the next cycle. Meanwhile farnell finally got these in stock again : ...

Rob

I'm working on the code, but weather does not allow outside testing, which is important to dial in the autoland parameters. I hope weather clears out at the second half of the week and I can make the necessary testing and release the next cycle. Meanwhile farnell finally got these in stock again : ...

Rob

Rob

I know.... It works great.
Fine tuning not always needed.

Rob

Rob

For my calculation I set the oscillation frequency on 3Hz if you use a Big and slow multicopter the oscillation is lower. For most of my multicopters 3Hz is ok. I always use a good fast ESC otherwise you can forget good tuning (specialy in bad situations strong wind etc..). Freq = 3; // Frequency in...

Rob

@Hamburger Yes I see that change, but first I have to implement my board to multiwii. I use it in my own software written for a other C compiler. but its now a reason to dive into the Multiwii software. I have a board with ATMEGA644P to use a bootloader I use WIRING not Arduino. But no problem to ho...

Rob

it's no problem for me to intergrate this software in the multiwii software, if there is interest.

Rob Keij

Rob

Yes,

I have tried with different copters.

With one parameter (tune) I have left pot for level PID en right pot for gyro PID.

Als I told.... A 100% Stable result.....

After landing I save the settings en disable the "Tune" parameter.

Rob

Rob

One pot tuning for PID using Ziegler-Nichols calculation 100% result..... :

viewtopic.php?f=7&t=978

Rob keij

Rob

Feature of APC802:
- GFSK transceiver Module
- 433Mhz ISM frequency band
- 9.6k bps data rate
- Multiple channels
- 27dBm Max. output power
- Baud rate configurable
- 256 bytes data buffers
- Standby current < 5uA
- Supply voltage 4.7~8V

9.6k bps data rate is not much.

Rob

Rob

I have look for the max baudrate (on the uart connection) of the rfm22/23 I can't find. Because most modules work with packets for à save transmission. For long range high baudrate van be à problem.

Rob

Rob

Atmega644p has 2 uarts

Zulu modem max 38,400 Baud

Also with arduinen shield:
http://global-4-lvs-turing.opera-mini.n ... UINO-1.pdf

Rob

Before the first flight I already make a modification for the sensor mount. Accelero and gyro works good. Testframe is very sensitive special for testing the sensors. - ATMEGA644P - MPU6000 - HMC5883L - BMP085 - CP2102 http://youtu.be/4MzzPqaccao http://www.robkeij.nl/media/Qynx/qynx2_A_15022013.JPG...

Rob

If pin 28 DTR is connected. To produce the reset pulse by programming.
Toggle power to reset is also possible.

Rob

Qynx 1 In 2008 I made a design of the first Qynx PCB. This board was one of the first with a ITG3200 gyro. Equipped with a 3A switching power supply for the gimbal servos. PCBs are manufactured by a Dutch company. Software is also designed for extreme weather conditions. http://lynxshop.nl/produc...

Rob

Normal there is a switch, jumper or potmeter to set the voltage.......

Rob

Check Your 5 Volt..... Maybe there is somthing wrong with Your regulator.

Rob

Rob

Video is private? We can' t see him

Rob

Hi, @Rob: I have commited support for qynx target. Could you please check that everything is correct. Also could you please describe your problem in more detail? Is it clicking sound on high RPM? Is it without load? Currently there are no "soft" RPM limiter, like it was before. The motor ...

Rob

@ Ziss I have the qynx controller tested, with a small engine one of the controllers hold while flying. I think the settings were not correct for this engine. I must further test. if RC input below RCP_MIN (by powerup) the controller won't arm. Furthermore, with these settings I hear and see a small...

Rob

d1 is placed upsidedown, anode to the ground, Now you have a shortcircuit.

Rob

@EOSBandi

Great idea,

Now it's time for me to make a 2560 Multiwii board.
(low cost to keep Multiwii mind).

It is Alex idea to keep the arduino IDE and to keep it simpele.
So ATMega2560 is a good choice.

Start drawing?

Rob Keij

Rob

I thinking 4 ESC on 1 board is for production ok, for Octo 2 boards is easyer than 8 ESC's.
And I preffere only N fet's.

I design a PCB with 4 of my ESC's

Rob

Rob

I only answered Your question........ There are people who build their own ESC. But most people choose to reflash the $8,- ESC instead of making one of $15,- I like a good quality, thats why I choose to make my own ESC. I have test a lot of ESC'S ......... from lowcost to highcost And if a $8,- good...

Rob

Building your own esc is not lowcost.
This is my own Nfet ESC using good components.
Buying in china is cheaper.
The intension of Multiwii is to build a cheap good working quadrocopter.
If I make 1000 esc's it's still not lowcost.
http://qynx.nl/index.php?title=Motor_Regelaar

Rob

Yes I care,

If there is interest I wil do, but I don't have a multiwii compatible board.

If I'm ready with some heavy programming (2 weeks...) I draw a new multiWII board,
and then I can interfere with the multiwii software

Rob

Rob

Was already hit...... http://www.multiwii.com/forum/viewtopic.php?f=7&t=978 Ziegler–Nichols method Control Type inflight PID tuning if(PMTR_Tune){ if(rcData[AUX3]>1700){ // Safe in eeprom Opslaan_PID_instellingen_in_Eeprom(); PID_programmed=1; } else if((rcData[AUX3]>1200)&&(PID_programm...

Rob

your question was: Can someone explain me how to convert a int to uint8_t ?

uint8_t data;

data = ((char) (analogRead(A0)/4));

rf22.send(data, data);

Rob

a simple explanation:

uint8_t data[4];
uint16_t analog_data;

analog_data = analogRead(A0) ;

data[0] = analog_data
data[1] = analog_data>>8&0xff;

analog_data = analogRead(A0) ;

data[2] = analog_data
data[3] = analog_data>>8&0xff;

rf22.send(data, sizeof(data));

Rob

the_char = ((char) (the_int/4))

send the_char

or

the_char1 = (((char) the_int & 0xff00)>>4)
the_char2 = ((char) the_int & 0x00ff)

send the_char1
send the_char2

Rob

@Hamburger Before send a VT100 command you have to send ESC : #define SENDESC Write_char( 27 ); Write_char( '[' ); So for VT100 you send more data send next position: SENDESC // Send escape sequence start Term_Send_Value_as_Digits( row ); // Convert row byte Write_char( ';' ); Term_Send_Value_as_Dig...

Rob

I have try this already, VT100 is to slow (to many extra bytes) for telemetry.......

Rob

Rob

What is your min/max in the Gui ?

Rob

Hi Rob, I have find 1 bug.... if I slowly decrease the input down to 900us (with servotester) The motor is making (little) sound (startup active?). If I decrease fast everything is shut down correctly. Should be fixed. An I also cleaned-up Qynx20A.inc. regards, ziss_dm Yes its fixed... thanks.........

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