Originally Posted by timecop

I think the only difference is throttle idle at 1500us and maybe pwm period .

Hmmm. Gave it a glance and QUADX_SERVO only shows four servo commands. Nothing for motor throttle commands.

In ( Output.pde)QUADX_SERVO also has number of motors defined as 0 which seams strange.

Can you point me to where the motor throttle is being regulated? Does this code assume one central motor that is on constantly or 4 separate ones?

Originally Posted by Edkirk

Could you provide a hint as to which person on the list goes by Alex.

Thanks, Ed

This one...

Originally Posted by bikertje888

I saw this post before, but I didn't think it would apply for me.
I thought it was only supposed to be used when you had a BMP085 connected.

But how come I need to make a hardware change just because I uploaded new software?
That I don't understand, everything was working before with 1.7ter.

Btw, I'm using Jussi's V1.2 board with everything soldered on except for the diode so I would get 5V.
Does this board already have the resistors onboard that I need?

Could it be that this problem has to do with a software setting?
I have internal pullups enabled in V1.9.

sorrry for late reply,
like you, in the beginning I didn't understand why ver1.9 was not compatible with my hardware: jussih board v1.11 and wmp, with or without other sensors.
I know that olders mwc versions bypass i2c errors, programmers said it was a mistake.


My working jussih v1.11 board was modified like this
unsolder d12 diode, and pullups resistors(4k7 if i remember) under arduino minipro(not leds resistors 470 ohms ).

I solder a little wire from the true 5v (esc) to wmp i2c "d12" connector.
now the i2c wmp connector is connected like this
+5v +5v sda scl gnd.
I solder a 2k2 resistor between sda wmp i2c connector and 5v
I solder a 2k2 resistor between scl wmp i2c connector and 5v

I power the board with 11.1v and plug ftdi and i2c error=0

jussih's pullups board was done between 3.3v and ic2 lines, with a oscilloscope i2c edges are 0v/3.3v now i2c edges are 0/5v and no errors appear.
regards.

Originally Posted by RCvertt

Hmmm. Gave it a glance and QUADX_SERVO only shows four servo commands. Nothing for motor throttle commands.

In ( Output.pde)QUADX_SERVO also has number of motors defined as 0 which seams strange.

Can you point me to where the motor throttle is being regulated? Does this code assume one central motor that is on constantly or 4 separate ones?

I'm driving so i can't really check, but I thought they just run the motor in governor mode and only vary the pitch.

Originally Posted by timecop

I'm driving so i can't really check, but I thought they just run the motor in governor mode and only vary the pitch.

Exactly, that's it.
The ESC control is not done via multiwii in this case, but directly via your TX/RX RC, like a variable pitch heli.
It's up to you to tune a throttle curve, with normal and idle mode.

Originally Posted by Alexinparis

Exactly, that's it.
The ESC control is not done via multiwii in this case, but directly via your TX/RX RC, like a variable pitch heli.
It's up to you to tune a throttle curve, with normal and idle mode.

Ok. Thank you both for that. And I thought controlling the yaw on a heli was difficult let alone all this pitch, throttle curve, idle up, and governor stuff. No wonder multicopters are becoming more and more popular.

Sounds like the multiWii would make just using a regular VP heli a lot easier to use. Have the heli spool up slowly when throttle is above 1040 then have it gradually go into idle up mode when throttle is above 1100 and such.

Originally Posted by fr3d-nexus

sorrry for late reply,
like you, in the beginning I didn't understand why ver1.9 was not compatible with my hardware: jussih board v1.11 and wmp, with or without other sensors.
I know that olders mwc versions bypass i2c errors, programmers said it was a mistake.


My working jussih v1.11 board was modified like this
unsolder d12 diode, and pullups resistors(4k7 if i remember) under arduino minipro(not leds resistors 470 ohms ).

I solder a little wire from the true 5v (esc) to wmp i2c "d12" connector.
now the i2c wmp connector is connected like this
+5v +5v sda scl gnd.
I solder a 2k2 resistor between sda wmp i2c connector and 5v
I solder a 2k2 resistor between scl wmp i2c connector and 5v

I power the board with 11.1v and plug ftdi and i2c error=0

jussih's pullups board was done between 3.3v and ic2 lines, with a oscilloscope i2c edges are 0v/3.3v now i2c edges are 0/5v and no errors appear.
regards.

Have you disabled internal pullups in the software ?

Originally Posted by fr3d-nexus

sorrry for late reply,
like you, in the beginning I didn't understand why ver1.9 was not compatible with my hardware: jussih board v1.11 and wmp, with or without other sensors.
I know that olders mwc versions bypass i2c errors, programmers said it was a mistake.


My working jussih v1.11 board was modified like this
unsolder d12 diode, and pullups resistors(4k7 if i remember) under arduino minipro(not leds resistors 470 ohms ).

I solder a little wire from the true 5v (esc) to wmp i2c "d12" connector.
now the i2c wmp connector is connected like this
+5v +5v sda scl gnd.
I solder a 2k2 resistor between sda wmp i2c connector and 5v
I solder a 2k2 resistor between scl wmp i2c connector and 5v

I power the board with 11.1v and plug ftdi and i2c error=0

jussih's pullups board was done between 3.3v and ic2 lines, with a oscilloscope i2c edges are 0v/3.3v now i2c edges are 0/5v and no errors appear.
regards.

I'm using Jussi's 1.11 shield and MWC1.9 with no problems. I just have WM+ no other modifications were necessary.

Thank you Alex & Team for making this real.

November sunset aerial footage in park (1 min 29 sec)

Originally Posted by dramida

Thank you alex & Team for making this real.
http://www.youtube.com/watch?v=6FtfXbLEQU8

dramida, your video are always fantastic..!
Keep going...

yay got the arduino today

Originally Posted by cass3825

Personally, I would rather spend a few more bucks and buy a board from someone that frequents these forums, is a fellow flyer, and shares our passion for the hobby. Not someone pumping out flight control boards for a quick buck.

just my two cents,
Billy

Lets see build one yourself:

Pro Mini ~$20
MP+ gyro ~$15
Acc ~$15
Baro ~$15
Compass ~$15
Shield ~$15

Total about $95
add a couple dozen hours of my time in soldering, configuring etc and maybe a blown device if I screw up the wiring, followed by cussing and a delay to get new parts.

Compared to this thing for $69 plus free shipping and no hassles ready to fly. http://www.ebay.com/itm/MWC-v1-9-Mul...-/150713400273
OK so they paid a kid $4 to solder it up and made $1 profit. So maybe they did make a quick buck, but I just love them for it.

So far I spent $200 and still am not happy with my flying ball of wires.

Hey....no contest the China made Multiwii 9DOF "all in one" ready to fly wins hands down.

Just bought one, only 7 left now.
This ebay seller has a 99.7%+ rating on over 24,000 items....great customer satisfaction!

Ray

Seeing your Multi Copter fly steady and zip around plus knowing you put it all together: PRICELESS!
(with lots of help from RCG and alexinparis The Great!)

my quad works very well with 1.8 ITG 3205 NCK and baro.
all work perfectly. but my itg3205 doesn't work properly with 1.9
now i'm using 1.8
roll , pitch P=3.2, D=50
this is the best for my quad. no any vibrations.
again thanks a lot for alex and multiwii team.

altitude hold test (ITG3205,NCK,BMP085)

multiwii quadcopter altitude hold test (ITG3205,NCK,BMP085) (4 min 6 sec)

2'nd cam test
there are some problems. when the quadcopter comes down so fast there are some vibrations and the pilot is not very good.

a little bit high latitude FPV with my multiwii quadcopter (2 min 18 sec)

Originally Posted by Gartenflieger2

You might need to connect the WMP to 5V, as on D12 it is initialized with the sensitivity too high. In that case you also see very high gyro readings in the GUI.

Christoph

P.S. Has it ben flying normally before?

Hi Gartenflieger2,
I never used a warthox board before. On the board it says WMP Power to D12. Here is the picture . But I'll try your solution tomorrow. It was the first try flying.

Originally Posted by flow23

But what's the difference then when one copter flies great and the other doesn't with D12 connected???

I connected my WM+ to 5V, same effect, any motor goes up erratically. I dismounted the motors and calibrated my gyro on the table and gave 1500 throttle, here is my screenshot from the GUI. I need help with this I don't know where to look