MultiWii

wilco1967

I used what I hope is a workaround on the aux switches...

Before I used +100% / high / 2000 on the aux switches for active, and 0% / mid / 1500 for off. After reading about this issue, I now use mid / 1500for active, and low / 1000 for off.... This should avoid most problems (I hope)....

wilco1967

I also noticed the level trim seems to stick to the magnetic heading, rather than the copter's front..... Never flew in headfree mode, but it also happens to normal level mode.... Normally I never had to use the level trim, as my tri tracks pretty straight as is. However last week, I had a crooked ...

wilco1967

Sorry Patrik, But I ask you to unmerge it. We can't add new things during the consolidation step to 2.1 The good news is.... I got it working from the transmitter (ER9X), so no need to change any multiwii code if you're the lucky owner of a reflashed 9X.... To just fly around it's a bitch, but for ...

wilco1967

I found some post by Kilrah over at the 9X forums about a possible frame length issue with FrSky CPPM receivers. http://9xforums.com/forum/viewtopic.php?f=52&t=1044 I tried to duplicate his findings, with the MultiWii, and indeed found problems. However, as far as I can tell without proper test ...

wilco1967

Ok, holy crap. I tried the code above. I set my RC Rate to 1.0 and my Pitch/Roll rate to 0.7. I got it up about 50 feet and tried some rolls, letting go of the stick right before it was level again. Works like a charm. Then I pulled the stick to the back right corner, and did two backwards pitch/ro...

wilco1967

See this plane is in summer. Quite a lot Popsicle I got 'RTF' popsicle sticks...... I bought them at a hobby shop with the icecream already removed, hence 'RTF' More serious (if thats possible)..... I tried today with mixing in the transmitter for 'horizontal flight'..... wasn't a succes..... It wo...

wilco1967

You could also do something like that in your transmitter, rather then in the MultiWii.
if your Tx has some decent firmware, that allows custom switches, it should not be so difficult.

wilco1967

Maby make a dual mode for it? Flick a switch and it change the Mix and fly like a plane... Then it will be a real VTOL... That might be a good idea..... take of with normal control, same as quad.... pitch it over away from you (so the front becomes 'top'), flick the switch, and fly like a plane.......

wilco1967

Just came back from first flight outside with the SingleCopter. The wind has died down so I could finally fly the SingleCopter with some more room. As to be expected from the large flat surface area, it is very sensitive from wind. Stability is very good, as long as you keep sufficient thrust. If th...

wilco1967

DualCopter ???? Didn't even know they existed..... found one movie at youtube, from the same korean as in the first link xuant9 provided.... http://www.youtube.com/watch?v=-MdvXknHYt8 Seems like even more work than building a single copter Perhaps some other time.... don't have 2 identical motors at...

wilco1967

Really a nice Grab what you find and Build.. Real DIY. The Mixer is written for a horizontal position like a Multirotor but it seems to be possible to do it like that to.. If you show me some flight videos or really can confirm the function i can add it to _shared. I have also made a mix for the Du...

wilco1967

Succes ! made a quick build of a single copter, with some old stuff I had lying around. And it WORKS ! https://lh4.googleusercontent.com/-U-jiJqo_3po/T-YiLhYz_OI/AAAAAAAAAQQ/5Qv1iZkHDV8/s640/IMG_3051.JPG Still need to straighten things out (mechanically adjust servo's), and re-inforce my simple depr...

wilco1967

If you want to get rid of that effect, we might consider to 're-calculate' the drift I factor, to make it pointing in the other direction if the copter yaw's.... But that brings us to EOSBandi's point... The drift algorithm cannot distinguish between copter induced drift, or wind induced drift... Wi...

wilco1967

I'll give it a try with the r920 patch..... But it will have to wait until next weekend before I get an oportunity,,,

Thanks a lot !

wilco1967

I've just got the Tiny-GPS working, with the ATtiny4313 as recommended. However, it was not an easy excersize for someone who's not programmer, so here is a little Howto for noobs like me It took me quite some time before I figured all this out, having no previous experience with programming these d...

wilco1967

another question: in LEVEL mode, do you use your transmitter trim, or the multiwii level trim (via stick combination) ? which gps? i2c or serial? Not sure whom you're asking.... but if its me.... - I'm using multiwii level trim..... (transmitter trims always centred around 1500) - Serial GPS on a F...

wilco1967

Just managed to get the HCSR04 working using the TinyGPS route in altitude hold mode. I'm using the modified BARO PID code derived from Olaf.J 's solution posted earlier in this tread.... I initially wanted to use my Mega, and directly wire the sonar to the Flyduino, but I could not get Olaf's code ...

wilco1967

perhaps in the wrong thread, but..... I just build a TinyGPS module, but ONLY for the HCSR04 ultrasound module..... I got a serial GPS on the Flyduino mega which is perfect connected directly to the Flyduino. However, I cannot get the HCSR04 working directly on the Mega in the MultiWii software http...

wilco1967

I also noticed the level trim seems to stick to the magnetic heading, rather than the copter's front..... Never flew in headfree mode, but it also happens to normal level mode.... Normally I never had to use the level trim, as my tri tracks pretty straight as is. However last week, I had a crooked m...

wilco1967

Ok, Thanks a lot !

Seems like I got it working....

wilco1967

What tool are you guys using to keep the source code synchronized between the google code svn directory and your own computer ? Upto now, I've manually copied the code, tab by tab from the google code trunc , but I guess there must be a more sophisticated way I've been reading something about apache...

wilco1967

I had the same with my tri and the last dev. Adjusted only the pitch " I " from 0.038 to 0.058 and now the tail holds the pitch stick input nearly forever. Georg OK, first I didn't think this would be the cause, but tried anyway.... You were right 100% spot on..... increased the pitch I f...

wilco1967

Hello all, I bought a gps module from AREA52MOSFETS on the seeduino mega thread about a year ago. http://sphotos.xx.fbcdn.net/hphotos-snc6/166024_2881346452507_1080790429_n.jpg http://sphotos.xx.fbcdn.net/hphotos-prn1/538252_2881344932469_1700294529_n.jpg I know nothing about it and was wondering i...

wilco1967

Yesterday I received the 10 Hz serial GPS (FMP04 = MTK 3329) I ordered from Flyduino.com This to replace an old 1Hz GPS I've been experimenting with. EOSBandi already mentioned long time ago that 1Hz will not give good results, but I tried anyway, as it was all I had, and I had nothing to loose... B...

wilco1967

Good to hear it flies (or flew ) straight..... I've crashed mine numerous times.... 99% pilot induced ("controlled flight into terain" as the aircrash investigators call it). Never had any issue with bullet connectors, but I've noticed there are different qualities.... I wouldn't trust som...

wilco1967

Perhaps give it a try to put one CCW and one CW at the front arms.... If it hovers straight, but yaws in forward flight, something is not aerodynamically straight.... Not sure, but having two indentical props forward, facing the wind in forward flight might be causing this.... I can imagine it could...

wilco1967

I think dev20120504 already has this issue, (if I'm not mistaken).... dev20120414 was still OK

For the file, please sent me a PM with your email, I'll mail it to you.... (cannot attach here it seems).

wilco1967

Well, if trimmed properly, it should fly pretty straight. It will not be perfect, but you shouldn't need to correct a lot, even with mag off. So I think it must be fixable... it's NOT a feature. Tri's are very good flyers (I personally like 'm much better than a Quad, because of its superiour yaw co...

wilco1967

Hi, Did not read anyone else reporting, but it seems since dev20120504 the tail on my Tri keeps dropping (nose up) if I increase throttle, or if I fly forward. Without constant forward stick (nose down command), the tail seems to drop, as if wanting to brake automatically. If I keep the pitch stick ...

wilco1967

You can trim out any mechanical yaw in software. You'll need to go in the LCD menu, and change the TRIM SER Y parameter. It defaults at 1500 (or mid travel). With the transmitter stick you can change it untill your Tri remains steady. I typically hold the tri loosly in my hand (so it can yaw freely)...

wilco1967

guru_florida wrote:This status indicator is only for the i2c-gps version, not for the MEGA.

Aha..... that explains a lot....

Thanks for clearing that up

wilco1967

Hi Eosbandi, Thanks for putting my status indicator patch in there. I forgot to tell you to set the LED STATUS pin13 to output in setup() though. It worked after I added: void setup() { ... // enable status LED pin pinMode(13, OUTPUT); } Hi guru_florida Could you explain a little how to get that fl...

wilco1967

Tried today the R10 EOSBandi code with a 1Hz GPS, even though it was mentioned it would not work on 1Hz...... Old wooden Tricopter, with Flyduino mega, WM+, BMA-020, HS5883, BMP-085, 900 kV 10x4.5 props Well..... it DID work.... Ok, far from perfect, but still better than the original code... all wi...

wilco1967

It is stored in eeprom and can be changed via lcd or via terminal of arduino ide . Else you can clear eeprom and upload mwii again. Aha ! now I understand...... Thanks Hamburger.... I don't have an LCD, so I never thought about this posibility to use the arduino terminal (serial monitor).... Took m...

wilco1967

My tri tail servo is mechanically not completely correct. When flying straight, It needs approx 1560 us on the tail servo as shown in the GUI to keep the heading. So I tried to trim it by adjusting TRI_YAW_MIDDLE to 1560, but it doesn't seem to do anything Even tried 1800 (just to see if it would mo...

wilco1967

I don't think the static deviation described in that article is the main concern for our multicopters. It would be a rather constant deviation.... For normal flying, it's not absolute north that's important, but only relative variations (not for GPS coming home though).. For our multi's, it's mostly...

wilco1967

I do have the drotek 9 dof and I am using a warthox centerplate for power distribution. I have the esc's right on the centerplate and I have another plate, 2.5cm over the esc for the electronics. I am using an arduino 2009 with a shield on, and on this shield I have placed the imu. So it's about 4-...

wilco1967

I use my frame as ground, but I don't know if this is the reason why my mag is working without a problem. You can make a circle of copper wire and connect this to ground, place this under your sensorboard, maybe its working. Any idea of a proper size for that circle ? I remember a project we did in...

wilco1967

Hi, I wonder if anyone has some tricks to avoid the magnetometer (5883) from being affected by the current through the ESC wiring ? On my tricopter, I have separated sensors (WM+, BMA-020, HS5883 & BP-085). Originally, the 5883 was badly affected when I run up the motors. But by moving the 5883 ...

wilco1967

Very impressive !
Thats a feature that would be very welcome in 2.1.

I also noticed how it holds altitude so well ? That is not due to the flow sensor, or is it ?

wilco1967

Cronalex wrote:with version 1.9 I don't have these problems... yes sensor orientation is ok (GUI)

are you sure ?
the orientation was changed between 1.9 and 2.0 on a lot of sensors.

http://www.multiwii.com/faq#How_should_ ... directions

wilco1967

Hi, Got around to removing all the shielding on this board. You are correct in that the usb chip is a PL-2303. Seems simple enough from datasheet. pin 1 TXD pin 5 RXD pin 20 VDD pin 21 GND Just need a small enough iron tip now. Iain Hi Iain, managed to get my old Globalsat BU-303 GPS mouse working ...

wilco1967

There seem to be two path being followed on GPS integration - Serial GPS directly to arduino (MEGA only, flyduino GPS board) - GPS connected to second arduino and I2C connection to main multiwii arduino. (EosBandi code on MelihK board for example ) I'm thinking of buying a GPS, but which methode is ...

wilco1967

Hello Returning again to the same problem, correct orientation of the sensors for 2.0 MW rel2, direction of flight to led Orientation of the 1.9 does not work I struggled a bit and got it #define ACC_ORIENTATION(X, Y, Z) {accADC[ROLL] = -Y; accADC[PITCH] = X; accADC[YAW] = -Z;} #define GYRO_ORIENTA...

wilco1967

Hi, Loaded dev 20120225, and as others have reported, baro works marvelous (BMP-085)..... Thanks ! However, there seems to be a problem with camstab (already since 20120203 I think it was).... Camstab light comes on in GUI, but no response from servo's.... Earlier versions (before 0203) were OK. My...

wilco1967

Comeon, someone at least agree with me Ok.... here you go.... Agree I think it has been adressed in dev 20120225..... (at least partly). As an additional note, I think, there should be some comment in the define, that explains the sensor board orientation (like 'Y arrow pointing forward', or 'solde...

wilco1967

I had to change from #define MAG_ORIENTATION(X, Y, Z) {magADC[ROLL] = -Y; magADC[PITCH] = X; magADC[YAW] = Z;} To #define MAG_ORIENTATION(X, Y, Z) {magADC[ROLL] = X ; magADC[PITCH] = Y; magADC[YAW] = -Z;} So Y became -X, X became Y, and Z became -Z. But I think it depends on how your sensor is mount...

wilco1967

Hi, Loaded dev 20120225, and as others have reported, baro works marvelous (BMP-085)..... Thanks ! However, there seems to be a problem with camstab (already since 20120203 I think it was).... Camstab light comes on in GUI, but no response from servo's.... Earlier versions (before 0203) were OK. My ...

wilco1967

Seems like something went wrong with the level mode in R557 It was working fine in dev20120203. In R557, there is a slow oscillation (approx 3 seconds cycle), which does not disappear when I change the level PID parameters (just becomes more/less pronounced, but always remains present). It's a circu...

wilco1967

I have tried cambstab again. In (much) earlier versions, there were no aux3 and aux4 inputs, so the camstab would just stabilize. Now I found, that if I activate camstab, it ALSO responds to aux3 and aux4 inputs. I like the aux3 and 4 to be set up as switches to control various options, but doing so...

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