Search found 2578 matches

by Hamburger
Mon Apr 04, 2011 12:27 pm
Forum: Software development
Topic: TRI motor pitch calculation wrong?
Replies: 7
Views: 2447

Re: TRI motor pitch calculation wrong?

I tested your correction and at least on my Tri it works. Somehow it looks like tri is now better controllable. thanks for testing and feedback. I could not find any other piece of code where geometry is taken into calculations. but maybe Alex did it deliberately this way with good reason? Hamburger
by Hamburger
Mon Apr 04, 2011 8:49 am
Forum: Software development
Topic: TRI motor pitch calculation wrong?
Replies: 7
Views: 2447

TRI motor pitch calculation wrong?

Hi, while it works, I think the calculation for pitch in the motor code is wrong. It says: #ifdef TRI motor[0] = rcCommand[THROTTLE] + axisPID[PITCH]*4/3 ; //REAR motor[1] = rcCommand[THROTTLE] - axisPID[ROLL] - axisPID[PITCH]*2/3 ; //RIGHT motor[2] = rcCommand[THROTTLE] + axisPID[ROLL] - axisPID[PI...
by Hamburger
Fri Apr 01, 2011 2:26 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

I did another test series tonight with the new curve you provided earlier. Floating around in my living room, I tried to bounce the quad up and down so that throttle use was a bit more realistic to real flight rather than just hovering in one place until the alarm sounds. The result is not linear, ...
by Hamburger
Thu Mar 31, 2011 11:08 am
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

I figure it should also be easy to add a simple coefficient to your code (result of battery specific calibration) so that the power consumed and the alarm threshold are both represented as mAh. But I'm getting ahead of myself... Zara Zara, I gave that some thought and I think while it is nice to re...
by Hamburger
Wed Mar 30, 2011 11:57 pm
Forum: General discussions
Topic: Wii-bar - MultiWii as Flybarless controller for CP helis?
Replies: 22
Views: 9258

Re: Wii-bar - MultiWii as Flybarless controller for CP helis

why not just remove throttle from the calculation of the 3 outputs for the servos?
Hamburger
by Hamburger
Wed Mar 30, 2011 11:54 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Updated approximation curve data Sorry to bother you all, but from experiments I found that the square curve I used is way too low for throttle above 50%. So here comes a new better one. The foundation data can be seen over at RCG in that theoretical thread - which is becoming more and more experim...
by Hamburger
Wed Mar 30, 2011 11:43 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Zara, thanks for the positive feedback. Please be aware that you may have to callibrate the counter and your alarm threshold when you switch to different type of battery,(but not if using equal batteries). This would in theory the result of diffeent voltage decay over discharge, because the currents...
by Hamburger
Wed Mar 30, 2011 10:51 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

If any of you is interested in some background on this topic, you may find this discussion helpful: m If you feed adventerous, hook up an amperemeter to one of your motors (!with prop!) and measure the current for 0%, 12,5%, 25% etc. up to 100% throttle. Or even better, measure the current for throt...
by Hamburger
Wed Mar 30, 2011 10:15 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

GUI binaries for all supported platforms and code can be found here m in arduino code, change battery pin ! My pin 3 in broken, so in code it is set to 2, but default is 3. If battery monitor worked for you then switch the define from my 2 to default 3. Hamburger It seems I left some people confuse...
by Hamburger
Tue Mar 29, 2011 3:42 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

GUI binaries for all supported platforms and code can be found here
http://code.google.com/p/multiwii/sourc ... Hamburger/

in arduino code, change battery pin ! My pin 3 in broken, so in code it is set to 2, but default is 3. If battery monitor worked for you then switch the define from my 2 to default 3.

Waiting for your feedback,

Hamburger
by Hamburger
Sun Mar 27, 2011 11:47 am
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

with Alex' consent, the code will be available in the code repository as binay package (which always includes source).
May take a day for me to prepare my latest code - twiggling with the underlying theory and algorithm some more.

Hamburger
by Hamburger
Sun Mar 27, 2011 12:45 am
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Thanks! Homework should be done before asking questions... The program for compiling GUI *.pde releases is Processing found here: m Mentioned ControlP5 library could be downloaded from here: m sounds right. I am still wondering how to apply a patch under windows. Is it a Linux feature only ? you ne...
by Hamburger
Sat Mar 26, 2011 12:21 am
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 122692

Re: Serial Bluetooth RF Transceiver Module RS232

Miniquad, @Hamburger, I tried to set up the BT module but couldn't get it to work with MultiWii configuration tool. After I add the BT module on my computer, it creates two new COM ports (Example: port 12, 13) on my computer. But I found that I can communicate only over the first port (port 12) when...
by Hamburger
Sat Mar 26, 2011 12:08 am
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Veljo, forgive my ignorance. I am used to *nix development environments. There you find a tool called patch which does exactly that, a) create patch by comparing to versions and b) applying a patch to one file and thus create a modified version. Very interesting code. I'd like to test it but...forgi...
by Hamburger
Fri Mar 25, 2011 1:10 am
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter /wattmeter for 1prebis7 - final - testers wa

Hi, this is a powermeter / wattmeter implementation - purely software. the software has been tested, but use at your own risk. Beta testers wanted, please provide feedback. Fully configurable via LCD or GUI. Motivation: the alarm based on battery voltage is cool, but on new generation of lipos (for ...
by Hamburger
Sun Mar 20, 2011 11:55 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Hi Alex, Hi, Your a) assumption is very interesting. It's a sort of wattmeter approximation. I didn't thing it would be precise enough to give something accurate enough. yes, the term Wattmeter has a nice ring. And surprising it is. I had the chance to have a long talk with an ESC firmware developer...
by Hamburger
Sun Mar 20, 2011 9:51 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Sorry, I forgot to mention: to read the separate powermeters for your motors is still only possible via LCD - I do not want to flood the data transmission between arduino and GUI with too many data. So if you are interested to see how much more load is on your rear motor(s) compared to front, you ne...
by Hamburger
Sun Mar 20, 2011 9:11 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

Re: power meter for 1prebis7 - beta testers wanted

Hi, first update: completely configurable via GUI, no LCD needed. Now added features: - monitor battery voltage via LCD configuration - send voltage, power and power alarm threshold to GUI - set power alarm threshold from GUI to arduino So in the GUI you can watch the power meter as the motors drain...
by Hamburger
Sat Mar 19, 2011 1:22 pm
Forum: Software development
Topic: power meter for 1prebis7 - beta testers wanted
Replies: 56
Views: 22642

power meter for 1prebis7 - beta testers wanted

Hi, the software is in beta stage - beware - beta testers wanted. For the moment you need a LCD display to configure and use. The buzzer alarm code is untested Please help to finalize this, I do not yet have a working buzzer, so I cannot at the moment test the actual alarm. That should be relatively...
by Hamburger
Thu Mar 10, 2011 10:43 pm
Forum: Shields, boards and sensors
Topic: WM+ with ITG3205
Replies: 84
Views: 53972

Re: WM+ with ITG3205

@Hamburger - I have a few pieces of this WMPs (batch from 2010, without "B" mark) and these sensors works great, standalone or in connection with NK. But there is no perspective to get another batch with these date of manufacturing because we have now 2011 Rurek, thanks for clarification....
by Hamburger
Thu Mar 10, 2011 11:56 am
Forum: Shields, boards and sensors
Topic: WM+ with ITG3205
Replies: 84
Views: 53972

Re: WM+ with ITG3205

Hi, are all ITG3205 faulty and need the fix in the code? I do have one whre the board and chip are labeled as follows (if I read the microscope correctly) IN&PA-V1.6. <---- no "B" here, just a trailing dot The chip is ITG3205 and further readings are Q2f028-G2 EL 1039 J Does this WMP n...
by Hamburger
Thu Mar 10, 2011 11:51 am
Forum: Shields, boards and sensors
Topic: WM+ with ITG3205
Replies: 84
Views: 53972

Re: WM+ with ITG3205

yes please.
Pleasse post your info how to connect directly.
Thanks, Hamburger
by Hamburger
Thu Mar 10, 2011 2:02 am
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 122692

Re: Serial Bluetooth RF Transceiver Module RS232

Nosepo wrote:Take a look....
http://www.youtube.com/watch?v=R8mlekQzIQE


do you have any more info on this?
link to the author/the software?

Thanks, Hamburger
by Hamburger
Thu Mar 10, 2011 2:02 am
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 122692

Re: Serial Bluetooth RF Transceiver Module RS232

Thanks Hamburguer for the reply. Can you explain me how can do work the bt conection with the Gui in PC?? attach BT module to MultiWii (power and serial RX,TX) have BT in computer (inbuilt or usb-dongle) start pairing (only once - make permanent on computer) start gui select BT-related device wait ...
by Hamburger
Sun Mar 06, 2011 7:36 pm
Forum: Shields, boards and sensors
Topic: Serial Bluetooth RF Transceiver Module RS232
Replies: 154
Views: 122692

Re: Serial Bluetooth RF Transceiver Module RS232

yes, the module works together with MultiWii and a computer with BT.

But where do you get the smartphone software from?

Hamburger
by Hamburger
Sat Mar 05, 2011 2:06 pm
Forum: Shields, boards and sensors
Topic: monitor total battery drain with current sensor? - closed
Replies: 6
Views: 2665

monitor total battery drain with current sensor? - closed

Hi, we already have a powerful CPU onboard, so I do not see any need to use a separate full fledged datalogger for this simple task. I find that monitoring only the voltage is not a good indicator of remaining energy in the battery as the decay of voltage over usage varies over time and batteries. W...
by Hamburger
Fri Mar 04, 2011 10:44 pm
Forum: Software development
Topic: MultiWii v1.pre7 released
Replies: 61
Views: 20940

Re: MultiWii v1.pre7 released

I have a serial LCD question I got the 20*4 sparkfun display...[...] What baud rate should I run the display at? Do I need to change something in code to fit the 20 character lines? default in the original MultiWii code is set to 9600 baud. The code inverts the use of RX,TX pin funktionality (was m...
by Hamburger
Tue Mar 01, 2011 2:20 pm
Forum: Software development
Topic: MultiWii v1.pre7 released
Replies: 61
Views: 20940

1.pre7patched GUI on MacosX does not run properly

Hi, sorry for the crosspost, I also posted on RCG at m (did not find any rules? I cannot run the 1.pre7-patched GUI on MacosX 10.5.8 with latest java installed. Starting from shell I see <some path>/JavaApplicationStub Invalid memory access of location 0x8 eip=0x37ef77d Bus error or when starting ap...