MultiWii

gompf-2

...but when I am dropping it (ascending) it starts to wobble more and more Thats mainly an aerodynamik problem as you go trough your own downwash/turbulences and suck them back into the rotors. It can be damped by a stiffer control but some wobble will remain I think. Descending with minimal transv...

gompf-2

Don´t know, today it´s fine, you´ve mail.

Regards,
Michael

gompf-2

x8r wrote:The MPU6050 and the MPU9150 both include a Digital Motion Processor. Did anyone implement the DMP?
Jan

Did anyone got the detailed docs for programming the DMP now?

Regards, gompf

gompf-2

Hi Andrej, I couldn´t send a PM to your account. As I´m stuck here and you showed interrest I would send you my second virgin Stellaris board for 5€, payment after delivery via Paypal or by sending back a bottle of Slovenias most famous beer . Don´t take it wrong, I don´t want you to work for me but...

gompf-2

I placed my sample order at the ti store 2-3days after it was announced. First confirmation was for mid september, last info was delivery for mid november.
Watterott.com had a batch of ~30. I got 2, sold out shortly after the google bot found the article in the store;-)

Regards, gompf

gompf-2

Hi, the board seems to be nice but I didn´t get the point about object orientated programming.... It was quite easy to adapt the SysTick timers for micros()/millis(), 16bit hardware pwm works fine, ppm-input capture is fine. I got the "old" style interrupt driven serial working also and no...

gompf-2

Hi, anybody using the library from http://www.billporter.info/playstation-2-controller-arduino-library-v1-0/ ? I realised that it´s very hungry for RAM as the ps2x controller class fills it after init but with cut down/removed debug code it seems to work fine. I build a simple TX without mixing/disp...

gompf-2

crashlander wrote:After seeing TC preordered...

Waiting for delivery, too.
BTW: It´s actually a dual MCU board as the onboard programmer/debugger also is implemented on a LM4F120H5QR.

gompf-2

Hi frogstarb, yes, they work. You just have to find out if you have the older version with p- and n-fets in the powerstage or the newer one with nfets only. If you remove the shrink tubing for programming check if you have 6 identical fets under the heatsink (->nfets only) or 3 each of 2 different t...

gompf-2

Hi ziss_dm, 3) AVRootLoader added as a programmer. I have created command-line wrapper for the AVRootLoader.dll. It supports writing Flash and EEPROM. The boot sign currently hardcoded to the "ESCBL1". Also there are small addition: It before programming it sets DTR, so DTR can be used to ...

gompf-2

Hi ziss_dm, I did some tests with r381 today, setup again BS12A nFet and KDA20-50s,epp8x4,5. I was to lazy to export all the graphs so I uploaded the ods-file. http://www.dateiupload.com/files/lHx71RLdLU.ods I tried to normalize to U=7,5V as my PSU isn´t stable. The comp_PWM firmware feels fine, nor...

gompf-2

Hi ziss_dm,

I will, but unfortunately it´s monday...

I´ll find some time in the next 2-3 days.

Regards,
gompf

gompf-2

Hi, I have found reason for this jump and dip. ;( In latest version it should be corrected, but in expence a litle bit higher noise at low power. Could you also describe your testing procedure? BTW: You can get RPM data from MISO pin, if you enable debugging. I just did some load tests with BS12A, K...

gompf-2

Hi, Meanwhile, I tried comp_pwm in my tree as well, and it definitely has an interesting effect. Have you noticed a decrease in fight time? I need to set up something to measure efficiency, throttle linearity, response time, etc. I just made a quick shoot without load. The current vs. ppm input look...

gompf-2

Hi ziss_dm, Thanks again for your work and answers, got airborn with V2 and everything is fine. I just couldn´t finish adjusting the PIDs, only hat 4 packs with me and needed 2 to feel the satisfaction of poshold after the rough setup 3) Currently there are no reverse, I'll think how to integrate it...

gompf-2

Hi, Updated to "V 2.0.4 alpha": ziss_dm Hi, ziss_dm, Thanks for your work. I just tested the latest sources, again with bs20_nFet/KDA20-28m and bs12a_nFet/kda20-50s. Again fine on the bench, first flight will be tomorrow if the weather is fine. Question: - Complementary PWM support for al...

gompf-2

The original RF module for the T9X, i just need the plastic case to fit a Jeti TU inside. You have pm.

gompf-2

Hi, I just piggy packed 2 Prominis (pins gnd,vcc,sda,scl) and programmed one with multiwii and 2nd with I2C-GPS-Nav. From the I2C-Bus I go to a sparkfun LLC with additional 3.3v regulator. The two "transistor ports" on the LLC are used for I2c, one of the voltage dividers I use for convers...

gompf-2

Hi Nils,

maybe, if you send me back your old one. I would have slaughtered mine to get the module case to fit a Jeti Duplex TX inside. I have one "PCB-type" TX in my MC-12 and don´t want to buy a new module now.

Regards,
gompf

gompf-2

Hi,
Feels fine on the bench with 09-18 bs_nfet: BS12A/KDA20-50S, BS20A/KDA20-26M
btw, its still august

gompf-2

Hi, I really tried to go trough the mixer setup, but the manual I have is a piece of bull****: P.MIX1 (PROGRMA MIXING1) Mix purpose to acuse of form to get rid of little mistake of organism, make it is it can take the heart conveniently even more to have not to handle. The very wanton one mixes accu...

gompf-2

Yes, I use a setup with promini and ITG3200/BMA180 (old freeimu) together with a HMC5883L/BMP085 addon board from ebay(HK). I piggy packed a second promini with I2C-Nav (r33 iirc) on the main FC (via SDA/SCL/GND/VCC) and use a MTK3339 trough on half of sparkfun level converter/additional 3.3V PSU. m...

gompf-2

I would test a HK BS20A at the weekend. On my test ESC I removed the c´s in the back-emv circuite. What would you recommend at the moment: remove or leave them? (full n-FET board, works fine with wii-esc and SimonK´s FW).

gompf-2

Hi,

I just got my T9X today

Look for er9X or open9x firmware. You just need to add an ISP connector to get the firmware upgraded and nearly every kind of mixing is possible.

gompf-2

We could take one as flightcontroller for the next catcopter. I`m just thinking about some kind of bionic motor, something like a hydraulic motor, with a tilted swashplate and some muscles around. ( humming the "Pinky and the Brain" theme ) Maybe someone with access to a larger bullfrog po...

gompf-2

I have seen a few of my pro-minis reboot when connecting the FTDI I only have this if I connect usb after rs232 or the copter wasn´t grounded to the PC before connecting RS232. In my opinion calib code works as expected, at least in my setups. You can always take some additional "hardware inte...

gompf-2

Hi, I would be interested in more... I tried it myself on 128A3 and coudn´t find a good solution for the eeprom bugs in my silicon revision (there was a workaround like go to sleep mode, write to ee2 and wake up via watchdog again, didn´t make me feel sure about my setup as it sometimes didn´t wake ...

gompf-2

... Is it then also coming out VCC as well?? Or is power being provided by VCC only in this instance? is it necessary to jump VCC and RAW when testing over USB? Imho it´s a mistake to power the Promini by 5v through raw. If you power by 5V then trough Vcc. 5V trough raw will never be stable as ther...

gompf-2

Quite standard part, was one of the first common available higher quality I2C ACCs, check the config for all the IMU´s using it. Some say BMA180 is the better choice. I´ve both but didn´t compare them on the same copter now so can´t say. Both do well in their setup.

gompf-2

Edgar wrote:Has meanwhile anybody tried this mod?

viewtopic.php?f=8&t=2078#p19020

Yes, didn´t work on Promini. I tried to check MCUSR for PORF and EXTRF but were not able to read the flag correctly. Maybe it´s cleared when the bootloader exits.

gompf-2

In this point dramida is quite right, you can easily destroy a 2-pole inrunner in freerun with a "good esc". The risk is not so high with "our" multipole outrunners as the number of poles acts like kind of gearset from the ESCs side (mecanical rpms lower than "electrical rpm...

gompf-2

dramida wrote:One solution would be to power the multicopter with 5V only when uploading software (the ftdi does the trick for a quad) and after that, unplug the 5V and plug the main battery.

This is imho the one and only correct way to update the FC.

gompf-2

Imho the code is fine. I NEVER flash the Software with ESCs/Props connected, for safety reasons. There is now way to reset the ESCs via Multiwii so you have to think about what you do. The code is straight forward and the result of what you tried was predictable. All worked as it should, your failur...

gompf-2

I initially started trying to use the PS2 pad unmodified like you suggest but had issues getting it to work. I didn't have a clue what was up but the pad was not returning values as expected. Rather than spend ages debugging I just ripped the pad apart instead. No problem, I did it the same way in ...

gompf-2

For sure, just kidding.

gompf-2

Aehhhemmm, ... no

I just switched the PWM-outputs for rear L/R and reversed the yawdir to make it "feel quiet right when held in the hand", then went to full throttle and started ... the false direction of rotation could explain the wobble of death on roll I´ve seen

gompf-2

It´s also possible to skip the HW-mod of the gamepad and use spi to talk to the PS2-pad and use all buttons. Even some off the buttons are analog.I build one for OLRS: http://forum.flytron.com/viewtopic.php?f=7&t=144&start=10#p2764 But nice work, you finished your project. I normaly start a ...

gompf-2

Hi, I started a port a while ago and some details are quite different between Mega/Xmega. I managed to partly adapt akafugus XMegaduino to ATxmega128A3 and made some progress with 2.0 code but than switched to gcc with arduino libs to track problems, iirc millis/micros etc adapted to the Xmega timer...

gompf-2

Hi, tested Promini+ITG3200+ADXL345 in a Vtail config 2xA20-28M, 2xa20-50S, atm all 8x4,5. As the first start with R976 PID mixers was awful with my setup (nonsense atm, planned to go to 9x4,5 on the front to compensate gimbal weight) I used the R964 mixer, P-yaw lowered to 4, others default. Due to ...

gompf-2

ESC calib: initOutput() shoud be done before. Sounds very reasonable. Did you verify it worked (better) with that change? Yes, I compiled a V-Tail config on Arduino 1.01 and wanted to test the esc-calib first, led was blinking after a while but all outputs dead, tested with oszi. SW without esc cal...

gompf-2

ESC calib: initOutput() shoud be done before. initOutput(); #if defined(ESC_CALIB_CANNOT_FLY) // <- to move in Output.pde, nothing to do here /* this turns into a special version of MultiWii. Its only purpose it to try and calib all attached ESCs */ writeAllMotors(ESC_CALIB_HIGH); delay(3000); write...

gompf-2

Woud be just a time consuming job to count the timing for the different sequences and code it to a pwm scheme for each esc. But be aware: I have 6 HK BL12A with stock firmware and altough they have oscillators they don´t have a synchron timing. If you concentrated on it you can hear that the last st...

gompf-2

Hi, I got Plush 6A from HK yesterday and unfortunately they also have F330 chipset now. PCB labeled as "HWI 40 V1.1" I won´t flight test them as I now have 3x P6A with SimonK FW and 2x P6A F330 and don´t want to mix them up in a V4. The Mystery BS 20A I got are still "OK"/Mega8 b...

gompf-2

OK, not possible to call the bootloader. IIRC I read something like this while searching the web for the firmware, the solution was to power up the GPS at a defined time so the bootloader calls itself. Can`t find the post any more... I just proofed that "connect" in Powerflash only connect...

gompf-2

OK,

sorry I only checked half of the scene... Is it still possible to connect to the flash tool?

gompf-2

Hi, I used this file and it´s OK. I hope you thought about 5V/3.3V voltage level and set the solder jumper on your FTI to 3,3V for direct connection to the GPS, otherwise I´m quite sure it´s dead now. It happened to me once also, but I was lucky enough to use the aux USB ports of an IBM keyboard whi...

gompf-2

tiny gps is a dead end since new nav functions will not fit into the atmega328 memory

Typo and you ment AtTiny?

gompf-2

Hi demaja, as you´re totally new to the topic I would suggest you to start with an ATMEGA2560 based board, even more if you´re interested in addons like GPS. eg: http://www.goodluckbuy.com/mwc-multiwii-4-axis-x-mode-flight-control-board-quadx.html It´s not so much more expensive but you have way mor...

gompf-2

EOSBandi, thanks! Found no issues not already mentioned but a nice kind of work. Makes me think I need some kind of telemetry to log the flights I already have an RFM22 on my I2C GPS converter. I thought of it as kind of RF-lost model buzzer when no FPV(OSD)-Unit is attached to my copter but togethe...

gompf-2

@mahowik Sorry for double posting the info, I didn´t find your post ... was blind. EOSBandi is right about the SBAS, the NMEA_OUTPUT is fine by default with the installed firmware so I don´t change anything here. So sad that "LOCUS" is fixed at a sample period of 15s... @Sharkcopter To cha...

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