diff --git a/main/gatts_demo.c b/main/gatts_demo.c
index 0923903..acf9650 100644
--- a/main/gatts_demo.c
+++ b/main/gatts_demo.c
@@ -821,6 +821,9 @@ void app_main(void)
 {
     esp_err_t ret;
 
+    // motor_init();
+    // motor_encoder_init();
+
     // timer_group_init(TIMER_GROUP_0, TIMER_0, false, timer_interval_num, timer_interval_ms);
     timer_group_init(TIMER_GROUP_0, TIMER_0, false, timer_group0_interval_num, timer_interval_ms);
 
diff --git a/main/motor_drive.c b/main/motor_drive.c
index 9d6f039..65b9ee6 100644
--- a/main/motor_drive.c
+++ b/main/motor_drive.c
@@ -1,5 +1,13 @@
 #include "motor_drive.h"
 
+void motor_init()
+{
+}
+
+void motor_encoder_init()
+{
+}
+
 bool motor_cmd_set_position(int speed_level, double position, int direction)
 {
     int last_direction = direction;
diff --git a/main/motor_drive.h b/main/motor_drive.h
index 38d83f4..5dc845a 100644
--- a/main/motor_drive.h
+++ b/main/motor_drive.h
@@ -1,5 +1,7 @@
 #include "stdbool.h"
 
+void motor_init();
+void motor_encoder_init();
 void motor_set_position(int speed_level, double position, int direction);
 bool motor_cmd_set_position(int speed_level, double position, int direction);
 bool motor_validation_set_position_parameters(int speed_level, double position, int direction);