User Manual

Appendix L – Release Information
HW Version 2.1.X
SW Version 1.17S1 Pro
Steveis
V1.17S1Pro changes since V1.16S1Pro for KK2.1.X
a) Much improved self level code that more accurately calculates which way is “up”. This improves
switching to self level after aggressive flying and will improve the Camera Gimbal operation as the
accuracy of the angles is now much better. The receiver interrupts no longer screw with the Self
Level calculation.
b) Fixed a bug where the Switch SS & PI flag wasn't cleared after a Factory Reset.
c) Added all 25 serial buffer bytes to debug. Only the first 16 used for a DSM satellite. All 25 are
used for SBus. Note, only the first 16 bytes are used in the KK2.1.X control code. SBus channels
above 16 bytes cannot be used to control the multicopter. When on the Safe screen, the servos will
be centred. When in the menu, no signal is sent to the servos.
d) Servo Always On now user selectable in Misc Options 3 (Servos On Arm). If set to yes, servos will
move (rather than centre) when armed and the throttle is at zero. Tricopter users will probably
want to leave this as "No" so the yaw servo doesn't move when arming/disarming.