228表示相机在当前状态不支持这个命令,所以在执行TAKE PHOTO之前要检查相机系统状态:
isTakingContinusPhoto
The state for identifying whether the camera would continuously take photo or not.
isTakingMultiPhoto
The state for identifying whether the camera would take multi-photos or not.
isTakingOnePhoto
The state for identifying whether the camera would take only one photo once or not.
这个相机系统状态可以通过DJIDrone.getDjiCamera().setDjiCameraSystemStateCallBack(mDjiCameraSystemStateCallBack)获取。
至于256估计你发送命令太快,命令发送失败TIMEOUT。