Good day @KusakabeMirai,
For the brain to enter ESC calibration mode the process is as follows:
- With the brain + frame powered off, power the controller on and set the throttle to the max.
- Power the brain + frame on and wait for the LED cycle.
- Once the cycle starts, disconnect and reconnect the power to the brain + frame and wait for the cycle again.
- Once the cycle starts, put the throttle down all the way, you should hear some beeps (the number of beeps depends on the battery you are using). At this point you should be able to push the throttle up and the motors should start working.
- Lastly, power off the brain + frame, make sure your throttle is all the way down and reconnect. You should be able to arm the copter now.
For all this to work you need to parametrize the autopilot first (indicating how just in case):
Create a .param file (the name doesn't matter, you can use any text editor to create the file and later on change the extension) with this content (updated copter parameters).
With the autopilot already installed, connect to APM Planner (we recommend 2.0.23-rc4) and go to the CONFIG/TUNING tab> Full Parameter List.
Load the file you created before and apply the changes (write to):
You might have to do this last step a couple of times for it to complete correctly as some parameters don't always update. To check the parameters are set right you need to reset the brain's power and connect again to the APM Planner, you should be able to check the voltage in the main window (which you can't do without parametrizing):
If you get 0.00 voltage (as in the picture above) that means you have to try to parametrize again. Be patient with this last step.