Walkera QR Ladybird accelerometer calibration

You must set the trimmers in Tx to neutral, release the fixed ID, perform auto-bind, and then a test flight. If quadrocopter drifts forward, put a couple of sheets of paper under the front legs, repeat the auto-bind. The same applies to any other direction. It is desirable to achieve minimal drift with zero ​​trimmers. After obtaining a satisfactory result, the last time perform auto-bind on selected sheets of paper and then immediately bind with a fixed ID.

I don't have any trouble with mine, simply using the trims if needed, however I don't use it to hover in place...

It's started from the case when I tried to compensate rotation by rudder trimmer. After every auto-bind I needed again and again compensate rotation in one drection. When I realized that I have trimming with value 3% of channel travel, I understand that something is wrong. Auto-binding compensate/zeroize any existing trimming.

vlad_vy wrote: ...
Auto-binding compensate/zeroize any existing trimming.

...of all, or just the rudder?

BTW I use it with fixed id...

With Fixed ID you have not this problem.

Now, after accelerometers calibration and then setup Fixed ID, I almost haven't drift at any direction (and rudder also), with zero trimmers in Tx.

Then I'm just lucky, I guess!

vlad_vy wrote: When I realized that I have trimming with value 3% of channel travel, I understand that something is wrong.

This is why I requested digital value of trimmers at main screen. I was able to see this abnormal value only at channel monitor.

It's works with any firmware. Sheets of paper serves for leveling QR Ladybird in time of calibration.

Auto-bind = without Fixed ID. I'm not 100% confident that this process works, but it helps me. Possible you have other problem, 10% of trim it's a lot.

I used at most 6 sheets of paper.

Walkera QR Ladybird accelerometer calibration

1. Clear Ladybird Fixed ID with bind plug.
2. Reset all Tx trims and subtrims to zero.
3. Place Ladybird on perfectly level surface.
4. Switch on Tx and (in 10 sec) connect flight battery to Ladybird. Wait auto-bind and initialization (solid red LED).
5. Perform test flight.
6. If Ladybird drifts forward, place a couple sheets of paper under the front legs, repeat steps 4 and 5. The same applies to any other direction. It is desirable to achieve minimal drift with zero ​​trimmers.
7. After obtaining the satisfactory result, the last time perform auto-bind on selected sheets of paper and then immediately bind with a Fixed ID.

If you have any unusual Ladybird behaviour, clear Ladybird Fixed ID with bind plug. Usually it helps.

I discovered it by self. For me, with two QR Ladybird v1 it works. Trimming with auto-bind mode is useless, it can be used with Fixed ID only.

Possible QR Ladybird V2 has other behaviour, but I have not V2.