CF2 is deflected. No hover.

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yello
Beginner
Posts: 1
Joined: Thu Aug 09, 2018 8:21 am

CF2 is deflected. No hover.

Post by yello » Thu Aug 09, 2018 9:48 am

Hello.
crazyflie 2.0 I use after purchasing.
But I was having trouble hovering.

When crazyflie is flying, it is flying in a certain direction.
Initialization was also on the flat bottom, but the same symptoms.
I have tried adjusting the roll pitch with trim, but only when it is the first time it is affected, and after that the symptoms are the same.
I'll show you the direction of the photo.
Image

By default, the IMU sensor does not seem to be calibrating properly.
So crazyflie is not even a basic hover.
The battery is balanced and the propeller is no longer balanced.
I am so frustrated that I post to the forum.
It is the first fligt data.
Image

Please help me.

arnaud
Bitcraze
Posts: 1746
Joined: Tue Feb 06, 2007 12:36 pm

Re: CF2 is deflected. No hover.

Post by arnaud » Thu Aug 23, 2018 9:30 am

Hi,

How fast is it drifting? A little offset and a bit of drift is normal: the floor, motor mount and accelerometer soldering are not perfectly flat and most importantly without extra sensors the Crazyflie cannot know how it is moving in the room and so it cannot correct for any drift.

The way to get a stable hover is to add extra sensor, the easiest is to use the Flow deck that has a flow sensor looking at the ground and correcting for positional drift. Any other positioning system like the LPS, mocap or cameras can also be used to achieve hovering and autonomous flight.

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