Thread Tools
Nov 09, 2016, 09:03 AM
Registered User
Quote:
Originally Posted by lamlawrence3c3c
have USB Port for connect the board to computer.
Which one is the usb port?

I wonder if you can backup a copy of the configuration and post it here. I've been trying to use CC3D with openpilot/librepilot on a heli but with little success.

You have to download the corresponding gcs to talk to it.

For 32 bit windows:

http://www.openpilot.org/wp-content/...2.02-win32.exe

For Mac:

http://www.openpilot.org/wp-content/....02.02-osx.dmg

32 bit linux:

http://www.openpilot.org/wp-content/....02-1_i386.deb

64 bit linux:

http://www.openpilot.org/wp-content/...02-1_amd64.deb
Sign up now
to remove ads between posts
Nov 09, 2016, 11:04 PM
Registered User
Quote:
Originally Posted by Wasp09
Which one is the usb port?

I wonder if you can backup a copy of the configuration and post it here. I've been trying to use CC3D with openpilot/librepilot on a heli but with little success.

You have to download the corresponding gcs to talk to it.

For 32 bit windows:

http://www.openpilot.org/wp-content/...2.02-win32.exe

For Mac:

http://www.openpilot.org/wp-content/....02.02-osx.dmg

32 bit linux:

http://www.openpilot.org/wp-content/....02-1_i386.deb

64 bit linux:

http://www.openpilot.org/wp-content/...02-1_amd64.deb
The Left One
Nov 09, 2016, 11:31 PM
Registered User
Quote:
Originally Posted by Wasp09
Which one is the usb port?

I wonder if you can backup a copy of the configuration and post it here. I've been trying to use CC3D with openpilot/librepilot on a heli but with little success.

You have to download the corresponding gcs to talk to it.

For 32 bit windows:

http://www.openpilot.org/wp-content/...2.02-win32.exe

For Mac:

http://www.openpilot.org/wp-content/....02.02-osx.dmg

32 bit linux:

http://www.openpilot.org/wp-content/....02-1_i386.deb

64 bit linux:

http://www.openpilot.org/wp-content/...02-1_amd64.deb
OP Configuration File for ESKY150X
Nov 11, 2016, 11:37 AM
Flyin' Ryan
theimacman's Avatar
Here's my review of the 150X:

Esky - 150X Mini Helicopter - Review and Flight (10 min 6 sec)
Nov 11, 2016, 11:50 AM
Registered User
Quote:
Originally Posted by lamlawrence3c3c
OP Configuration File for ESKY150X
Thanks.
Nov 16, 2016, 01:07 AM
Registered User
Quote:
Originally Posted by theimacman
Here's my review of the 150X:

https://youtu.be/y-1r3iuf4qA
Awesome Review! very details
Nov 16, 2016, 01:08 AM
Registered User
Beginner Practice - ESKY150X with CC3D 6 DOF Flight Control (0 min 34 sec)


Hahaaaa, Funny Video
Nov 20, 2016, 07:08 AM
Registered User
One more NEW Video!!!

Beginner Practice - ESKY150X with Dual Rate (0 min 33 sec)
Nov 25, 2016, 03:34 AM
Registered User
up
Dec 02, 2016, 11:06 AM
Registered User
Just saw, that there is also this thread.
Just FYI my short review of the 150x:
https://www.rcgroups.com/forums/show...0&postcount=11

In short: Very stable in mode 1, terrible to fly in mode 2.

I wondered why nobody else reported this terrible flight characteristics, but as I saw the videos it got obvious to me. Both theimacman as well as ALISHANMAO did not fly in a big enough space to actually get some angle on this heli.

It seems the FC overcompensates resulting in a death spiral. Additionally the tail is erratic and doesn't have enough power.
If the CC3D file that has been posted here is correct, then I don't wonder anymore why it flies so terrible as it has an extremely high gain for attitude PID.
That just cries for overshooting...
To me it seems like they just wanted to make it as stable as possible and therefore squeezed the max out. It seems this only works as long as the flight angle remains very small (mode 1).
Dec 02, 2016, 11:16 AM
Flyin' Ryan
theimacman's Avatar
Quote:
Originally Posted by OiOi
I wondered why nobody else reported this terrible flight characteristics, but as I saw the videos it got obvious to me. Both theimacman as well as ALISHANMAO did not fly in a big enough space to actually get some angle on this heli.
You apparently didn't actually watch my review, as I very clearly spoke about flying issues in wind. It has nothing to do with the mode, and everything to do with the "wind bug" which causes the accelerometer to level itself out during forward flight into wind.
Dec 02, 2016, 11:43 AM
Registered User
Nope the problem I encountered definitely isn't what you described.
I actually was aware of what you said, but I thought that you probably generally just put all the flight behavior on the wind cause.
And indoors you only flew in a very tiny space.

If you fly it in a hall without wind you get terrible problems as soon as the heli starts to get some angle. Tried it, as I have a room with at least 10x10m which is enough to see this problem.
Doesn't your heli has this problem?

BTW just took it apart. The FC is truly a very uncommon construction. They separated the gyro sensor into a separate rubber encasing connecting via flatband foil cable to the FC PCB.
Never saw anything like that in a micro heli before. BTW: They scratched off the part description of the gyro sensor.

EDIT;
Just for better explanation. Even as I flew outdoors on my 2nd flight, when I switched to mode 1 it flew perfectly allright.
For my third flight, the constructions hall where I work was the target, to be indoors but with enough space.
Last edited by OiOi; Dec 02, 2016 at 01:01 PM.
Dec 02, 2016, 02:01 PM
Registered User
Some analysis of the FC:

Interestingly the FC is not mounted anywhere solidly, not even with one screw!
Only the separate Gyro-Sensor in the rubber encasing is screw mounted.
BTW: The rubber encasing is huge!!! At least compared to the contained chip, which is probably the usual Invensense MEMS sensor.
The cable from gyro to FC has 7 "leads", which is exactly what is needed to make the usual connect to the MEMS sensor.

It uses the STM32F103CB with an additional external 16Mb FLASH.
Additionally the FC has two C8051F850 chips. I'm not yet sure what they are for. Probably for the servos (and/or motor control).

Both TX and RX use a BK2425 transceiver chip with an additional amp(MCP01) on the TX.

Unfortunately I cannot make any pics as my camera has been stolen last weekend...

Edit:
BTW: The problem many had with connecting it via USB probably is because the FC doesn't have any USB connector, but some other 4-pin connector instead. So one first needs some adapter cable...
Now, one should only know which exact type of connector this is...
It's the same as the 4-pin servo connectors. Any idea what type they are?
(EDIT: Hmm, they look like 1mm JST-SH. OK I ordered some from HK, will need a few weeks'til they arrive)
I also first have to look how the power connection has to be for the connect (e.g. if it has to be 3.3V instead of 5V or not)
But as I see it it probably isn't a big problem to get access to the SW, which has been said is openpilot.
But It's probably quite some effort to flash another FW in it, as one has to implement the radio protocol and motor interfaces into it.
But If I can gain access to the current FW I would be more than happy. I would surely change the PID gains and activate a rate or axes lock mode.

Edit2:
For all those interested:
The FC incl the gyro weighs 3.11g
The PCB alone weighs roughly 2.45g
and the Gyro/rubber unit roughly 0.65g
Last edited by OiOi; Dec 02, 2016 at 03:39 PM.
Dec 03, 2016, 09:57 AM
Registered User
BTW a small update:

As the canopy is a mess, I now made a mod, that I'm happy with. First I cut parts of the lower side of the canopy away (as said the FC is anyways encased). Then I additionally made a small length cut.
Like that I can now open the canopy without taking it from the grommets. I just fold the rotor blades to the back and turn the canopy upside and have access to the battery.
Probably later on I will add a bit velcro so that the canopy holds down or a tiny magnet.
As said I unfortunately currently cannot make any pics...

Edit2:
About the connection to a PC for CC3D configuration:

I had a look at the PCB, and the pinout of the little socket is:
(front of heli)
* GND
* 5V
* USB Data -
* USB Data +
(tail of heli)

You can directly connect it like that to your USB-Port.

But be aware, the 5V from the USB go over a diode to the Lipo input. This they do to step down the USB 5V a bit, so that the rest doesn't get fried.
BUT THE LIPO HAS TO BE DISCONNECTED ALL THE TIME, WHEN CONNECTED TO THE USB
Otherwise the Lipo gets damaged and if everything goes wrong also your USB-Port.
Also do not power the motors if connected like that, as this will surely kill the little diode...
(I personally would disconnect all other plugs first...to be sure)

BTW:
The rubber part with the gyro in it has the dimensions 9x9x6mm. Quite huge just for this tiny sensor...
That's also the reason why the FC plastic encasing has an angled top (where you mount the battery), to make place for this rubber thing...
Last edited by OiOi; Dec 03, 2016 at 12:12 PM.
Dec 03, 2016, 10:26 PM
Registered User
Quote:
Originally Posted by OiOi
Nope the problem I encountered definitely isn't what you described.
I actually was aware of what you said, but I thought that you probably generally just put all the flight behavior on the wind cause.
And indoors you only flew in a very tiny space.

If you fly it in a hall without wind you get terrible problems as soon as the heli starts to get some angle. Tried it, as I have a room with at least 10x10m which is enough to see this problem.
Doesn't your heli has this problem?

BTW just took it apart. The FC is truly a very uncommon construction. They separated the gyro sensor into a separate rubber encasing connecting via flatband foil cable to the FC PCB.
Never saw anything like that in a micro heli before. BTW: They scratched off the part description of the gyro sensor.

EDIT;
Just for better explanation. Even as I flew outdoors on my 2nd flight, when I switched to mode 1 it flew perfectly allright.
For my third flight, the constructions hall where I work was the target, to be indoors but with enough space.
Can you show me more photo for your review.
I am curious that on the Fc Construction, how can they solve the shock with CC3D.
As the construction was complex, i afraid i cannot assembly after open the FC Control Box.