-void breathing_speed_default(void);
-void breathing_speed_set(uint8_t value);
-void breathing_speed_inc(uint8_t value);
-void breathing_speed_dec(uint8_t value);
+void breathing_period_default(void);
+void breathing_period_set(uint8_t value);
+void breathing_period_inc(void);
+void breathing_period_dec(void);