Search found 77 matches

by Rob
Tue May 02, 2017 6:42 am
Forum: General discussions
Topic: Drone rolls left
Replies: 3
Views: 682

Re: Drone rolls left

Which BL-ESC' s you are using? Maybe you need to reflash them with beter software
by Rob
Tue May 02, 2017 6:34 am
Forum: Connecting elements
Topic: Quadcopter don't take off
Replies: 2
Views: 1328

Re: Quadcopter don't take off

Can you see the stick movements on the multiwi software?
by Rob
Tue May 02, 2017 6:31 am
Forum: Getting Started - MultiWii config and setup
Topic: Help me fly! QuadX takeoff and crash directly
Replies: 2
Views: 733

Re: Help me fly! QuadX takeoff and crash directly

Check motor connections, it looks like they are exchanged
by Rob
Mon May 01, 2017 11:39 pm
Forum: Getting Started - MultiWii config and setup
Topic: MOSFET driven quad question.
Replies: 3
Views: 567

Re: MOSFET driven quad question.

Which firmware are you using?

Regards,

Rob
by Rob
Mon May 01, 2017 10:12 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134496

Re: Alternative ESC firmware (reflashing)

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 !...
by Rob
Tue Apr 07, 2015 10:52 pm
Forum: General discussions
Topic: What happened here?
Replies: 2
Views: 493

Re: What happened here?

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

Best regards,


Rob
by Rob
Tue Mar 03, 2015 8:33 pm
Forum: Software development
Topic: GPS NAV
Replies: 964
Views: 168976

Re: GPS NAV

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 ...
by Rob
Tue Feb 24, 2015 8:58 pm
Forum: Software development
Topic: GPS NAV
Replies: 964
Views: 168976

Re: GPS NAV

Nice test Leo..... Looks good....
by Rob
Tue Dec 30, 2014 9:46 am
Forum: Software development
Topic: Why development has stopped?
Replies: 230
Views: 19894

Re: Why development has stopped?

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

With good quality components and designed with Multiwii toughts.......
by Rob
Thu Aug 14, 2014 10:17 pm
Forum: Ideas
Topic: Support for complex drone presentation on October 1st Berlin
Replies: 3
Views: 651

Re: Support for complex drone presentation on October 1st Be

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
by Rob
Mon Aug 11, 2014 6:10 pm
Forum: Boards
Topic: PSoC 4 CY8CKIT-049 4xxx Prototyping Kits
Replies: 3
Views: 525

Re: PSoC 4 CY8CKIT-049 4xxx Prototyping Kits

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?
by Rob
Wed Jun 18, 2014 4:53 am
Forum: Boards
Topic: PSoC 4 CY8CKIT-049 4xxx Prototyping Kits
Replies: 3
Views: 525

Re: PSoC 4 CY8CKIT-049 4xxx Prototyping Kits

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

Best regards,

Rob
by Rob
Sat May 03, 2014 1:42 pm
Forum: Ideas
Topic: Add datas to GUI for PID tuning
Replies: 11
Views: 3776

Re: Add datas to GUI for PID tuning

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

Rob
by Rob
Sat Apr 26, 2014 8:49 am
Forum: Software development
Topic: Need processing libraries for build Multiwii GUI
Replies: 3
Views: 450

Re: Need processing libraries for build Multiwii GUI

Google controlp5 and you Will find.......
by Rob
Sat Apr 12, 2014 5:39 am
Forum: General discussions
Topic: Walking with a drone project with Multiwii 2.3 Nav.
Replies: 1
Views: 582

Re: Walking with a drone project with Multiwii 2.3 Nav.

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

Best regards

Rob
by Rob
Mon Feb 24, 2014 9:54 am
Forum: Shields, boards and sensors
Topic: ACS758 Current Sensor
Replies: 2
Views: 241

Re: ACS758 Current Sensor

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


Rob
by Rob
Sun Jan 12, 2014 10:44 pm
Forum: Software development
Topic: GPS NAV
Replies: 964
Views: 168976

Re: Quick update

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 : ...
by Rob
Sat Jan 11, 2014 11:37 pm
Forum: Software development
Topic: GPS NAV
Replies: 964
Views: 168976

Re: Quick update

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 : ...
by Rob
Tue Oct 22, 2013 9:57 pm
Forum: Ideas
Topic: Use DJI Naza GPS with MultiWii
Replies: 14
Views: 3016

Re: Use DJI Naza GPS with MultiWii

;)
by Rob
Thu Apr 04, 2013 12:38 am
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

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

Rob
by Rob
Sun Mar 24, 2013 9:00 pm
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

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...
by Rob
Sun Mar 24, 2013 8:21 pm
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

@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...
by Rob
Sat Mar 23, 2013 10:31 pm
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

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

Rob Keij
by Rob
Sat Mar 23, 2013 10:15 pm
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

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
by Rob
Sat Mar 23, 2013 6:10 am
Forum: Ideas
Topic: Changing PID Values with a Pot
Replies: 73
Views: 27379

Re: Changing PID Values with a Pot

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


viewtopic.php?f=7&t=978

Rob keij
by Rob
Sun Feb 17, 2013 1:14 pm
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20842

Re: UART Radio project

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
by Rob
Sun Feb 17, 2013 11:53 am
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20842

Re: UART Radio project

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
by Rob
Sun Feb 17, 2013 5:26 am
Forum: Software development
Topic: UART Radio project
Replies: 112
Views: 20842

Re: UART Radio project

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
by Rob
Fri Feb 15, 2013 11:30 pm
Forum: Shields, boards and sensors
Topic: Qynx with Multiwii?
Replies: 1
Views: 274

Re: Qynx with Multiwii?

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...
by Rob
Thu Feb 14, 2013 11:09 pm
Forum: Getting Started - MultiWii config and setup
Topic: Setup Problems
Replies: 10
Views: 715

Re: Setup Problems

If pin 28 DTR is connected. To produce the reset pulse by programming.
Toggle power to reset is also possible.
by Rob
Wed Feb 13, 2013 10:13 pm
Forum: Shields, boards and sensors
Topic: Qynx with Multiwii?
Replies: 1
Views: 274

Qynx with Multiwii?

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...
by Rob
Sun Feb 03, 2013 1:06 am
Forum: ESCs, propellers , servos and radios
Topic: servo burnt out and notchy movement
Replies: 7
Views: 571

Re: servo burnt out and notchy movement

Normal there is a switch, jumper or potmeter to set the voltage.......
by Rob
Sat Feb 02, 2013 12:55 am
Forum: ESCs, propellers , servos and radios
Topic: servo burnt out and notchy movement
Replies: 7
Views: 571

Re: servo burnt out and notchy movement

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


Rob
by Rob
Sat Feb 02, 2013 12:51 am
Forum: Getting Started - MultiWii config and setup
Topic: impossible to fly mwc se --Solved--
Replies: 6
Views: 344

Re: impossible to fly mwc se

Video is private? We can' t see him
by Rob
Sat Aug 25, 2012 2:41 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134496

Re: Alternative ESC firmware (reflashing)

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 ...
by Rob
Mon Aug 20, 2012 10:02 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134496

Re: Alternative ESC firmware (reflashing)

@ 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...
by Rob
Wed Jun 06, 2012 6:33 am
Forum: ESCs, propellers , servos and radios
Topic: Cheap 6 channel transmitter? Let's rip it apart and hack it!
Replies: 64
Views: 12023

Re: Cheap 6 channel transmitter? Let's rip it apart and hack

d1 is placed upsidedown, anode to the ground, Now you have a shortcircuit.
by Rob
Mon Apr 30, 2012 4:55 am
Forum: Ideas
Topic: Should we fork code for Mega2560?
Replies: 17
Views: 2122

Re: Should we fork code for Mega2560?

@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
by Rob
Fri Mar 23, 2012 7:28 am
Forum: Getting Started - MultiWii config and setup
Topic: How come nobody builds their own ESCs?
Replies: 12
Views: 1633

Re: How come nobody builds their own ESCs?

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
by Rob
Thu Mar 22, 2012 11:36 pm
Forum: Getting Started - MultiWii config and setup
Topic: How come nobody builds their own ESCs?
Replies: 12
Views: 1633

Re: How come nobody builds their own ESCs?

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...
by Rob
Thu Mar 22, 2012 7:35 am
Forum: Getting Started - MultiWii config and setup
Topic: How come nobody builds their own ESCs?
Replies: 12
Views: 1633

Re: How come nobody builds their own ESCs?

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
by Rob
Wed Feb 22, 2012 10:08 pm
Forum: Ideas
Topic: Add datas to GUI for PID tuning
Replies: 11
Views: 3776

Re: Add datas to GUI for PID tuning

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 :D


Rob
by Rob
Mon Feb 20, 2012 6:47 pm
Forum: Ideas
Topic: Inflyght PID adjust
Replies: 1
Views: 1630

Re: Inflyght PID adjust

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...
by Rob
Wed Feb 01, 2012 7:42 pm
Forum: General discussions
Topic: Playing with RFM22 lib
Replies: 5
Views: 747

Re: Playing with RFM22 lib

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);
by Rob
Wed Feb 01, 2012 7:40 pm
Forum: General discussions
Topic: Playing with RFM22 lib
Replies: 5
Views: 747

Re: Playing with RFM22 lib

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));
by Rob
Tue Jan 31, 2012 8:35 am
Forum: General discussions
Topic: Playing with RFM22 lib
Replies: 5
Views: 747

Re: Playing with RFM22 lib

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
by Rob
Mon Jan 09, 2012 8:36 am
Forum: Ideas
Topic: Re: vt100 as input device for config&telemetry - please test
Replies: 47
Views: 9345

Re: vt100 as input device for configuration and telemetry

@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...
by Rob
Sun Jan 08, 2012 9:35 pm
Forum: Ideas
Topic: Re: vt100 as input device for config&telemetry - please test
Replies: 47
Views: 9345

Re: vt100 as input device for configuration and telemetry

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

Rob
by Rob
Tue Dec 27, 2011 6:24 pm
Forum: Getting Started - MultiWii config and setup
Topic: Throttle range multiplex tx with multiwii
Replies: 5
Views: 932

Re: Throttle range multiplex tx with multiwii

What is your min/max in the Gui ?
by Rob
Mon Dec 12, 2011 11:40 pm
Forum: ESCs, propellers , servos and radios
Topic: Alternative ESC firmware (reflashing)
Replies: 640
Views: 134496

Re: Alternative ESC firmware (reflashing)

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.........