it is not card, it was just to show the model
#ifdef USE_SPINDLE_RELAY
#define DEFAULT_SPINDLE_RPM_MAX 1.0 // must be 1 so PWM duty is alway 100% to prevent relay damage
#else
#define DEFAULT_SPINDLE_RPM_MAX 1000.0 // can be change to your spindle max
#endif
#define DEFAULT_SPINDLE_RPM_MIN 0.0 // rpm
#define DEFAULT_LASER_MODE 0 // false