Compile error with Hackflight Flight controller program using Arduino IDE, undefined reference to serial 3 error
my code as follows#include <hackflight.h> #include <boards/stm32f/stm32f4.h> #include <core/mixers/fixedpitch/quadxbf.h> #include <core/pids/angle.h> #include <debug.h> #include <escs/dshot.h> #include <imus/softquat.h> #include <sbus.h> #include...