diff --git a/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp b/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
index d033449..a77cd3a 100644
--- a/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
+++ b/components/step_motor_ctrl_module/step_motor_ctrl_module.cpp
@@ -204,7 +204,7 @@ int32_t StepMotorCtrlModule::move_to_zero_with_calibrate(int32_t nowx, function<
 
   return 0;
 }
-int32_t StepMotorCtrlModule::rotate(uint8_t direction, int32_t velocity, int32_t acc) { return 0; }
+// int32_t StepMotorCtrlModule::rotate(uint8_t direction, int32_t velocity, int32_t acc) { return 0; }
 
 /*******************************************************************************
  *                                    READ                                     *
diff --git a/components/step_motor_ctrl_module/step_motor_ctrl_module.hpp b/components/step_motor_ctrl_module/step_motor_ctrl_module.hpp
index 31fe6dc..91f8fc6 100644
--- a/components/step_motor_ctrl_module/step_motor_ctrl_module.hpp
+++ b/components/step_motor_ctrl_module/step_motor_ctrl_module.hpp
@@ -66,7 +66,7 @@ class StepMotorCtrlModule {
   int32_t move_by(int32_t dpos, function<void(int32_t exec_status, int32_t topos)> status_cb);
   int32_t move_to_zero(function<void(int32_t exec_status, int32_t dpos)> status_cb);
   int32_t move_to_zero_with_calibrate(int32_t nowpos, function<void(int32_t exec_status, int32_t zero_shift_pos)> status_cb);
-  int32_t rotate(uint8_t direction, int32_t velocity, int32_t acc);
+  // int32_t rotate(uint8_t direction, int32_t velocity, int32_t acc);
 
   /*******************************************************************************
    *                                    READ                                     *