diff --git a/examples/Braccio_Basic/Braccio_Basic.ino b/examples/Braccio_Basic/Braccio_Basic.ino
index f275daa..ebc00c7 100644
--- a/examples/Braccio_Basic/Braccio_Basic.ino
+++ b/examples/Braccio_Basic/Braccio_Basic.ino
@@ -33,6 +33,7 @@ bool move_joint = false;
 
 static void event_handler(lv_event_t * e)
 {
+  Braccio.lvgl_lock();
   lv_event_code_t code = lv_event_get_code(e);
   lv_obj_t * obj = lv_event_get_target(e);
   if (code == LV_EVENT_CLICKED)
@@ -46,15 +47,19 @@ static void event_handler(lv_event_t * e)
     if (strcmp(txt, "Move") == 0)
       move_joint = !move_joint;
   }
+  Braccio.lvgl_unlock();
 }
 
 void customMenu()
 {
+  Braccio.lvgl_lock();
   lv_obj_t * btnm1 = lv_btnmatrix_create(lv_scr_act());
   lv_btnmatrix_set_map(btnm1, btnm_map);
   lv_btnmatrix_set_btn_ctrl(btnm1, 0, LV_BTNMATRIX_CTRL_CHECKABLE);
   lv_obj_align(btnm1, LV_ALIGN_CENTER, 0, 0);
   lv_obj_add_event_cb(btnm1, event_handler, LV_EVENT_ALL, NULL);
+  Braccio.lvgl_unlock();
+
   Braccio.connectJoystickTo(btnm1);
 }
 
diff --git a/examples/LCD_Custom_Menu/LCD_Custom_Menu.ino b/examples/LCD_Custom_Menu/LCD_Custom_Menu.ino
index 18af02c..86c159f 100644
--- a/examples/LCD_Custom_Menu/LCD_Custom_Menu.ino
+++ b/examples/LCD_Custom_Menu/LCD_Custom_Menu.ino
@@ -28,10 +28,13 @@ static const char * btnm_map[] = {"Option 1", "\n",
  * FUNCTIONS
  **************************************************************************************/
 
-void customMenu(){
+void customMenu()
+{
+  Braccio.lvgl_lock();
   lv_obj_t * btnm1 = lv_btnmatrix_create(lv_scr_act());
   lv_btnmatrix_set_map(btnm1, btnm_map);
   lv_obj_align(btnm1, LV_ALIGN_CENTER, MARGIN_LEFT, MARGIN_TOP);
+  Braccio.lvgl_unlock();
 }
 
 /**************************************************************************************
diff --git a/examples/LCD_Menu_Joystick/LCD_Menu_Joystick.ino b/examples/LCD_Menu_Joystick/LCD_Menu_Joystick.ino
index 9a962ed..36fdfa6 100644
--- a/examples/LCD_Menu_Joystick/LCD_Menu_Joystick.ino
+++ b/examples/LCD_Menu_Joystick/LCD_Menu_Joystick.ino
@@ -30,7 +30,9 @@ static const char * btnm_map[] = {"Option 1", "Option 2", "\n",
  * FUNCTIONS
  **************************************************************************************/
 
-static void event_handler(lv_event_t * e){
+static void event_handler(lv_event_t * e)
+{
+  Braccio.lvgl_lock();
   lv_event_code_t code = lv_event_get_code(e);
   lv_obj_t * obj = lv_event_get_target(e);
   if (code == LV_EVENT_CLICKED) {
@@ -40,9 +42,12 @@ static void event_handler(lv_event_t * e){
     LV_LOG_USER("%s was pressed\n", txt);
     Serial.println(String(txt) + " was pressed.");
   }
+  Braccio.lvgl_unlock();
 }
 
-void customMenu(){
+void customMenu()
+{
+  Braccio.lvgl_lock();
   lv_obj_t * btnm1 = lv_btnmatrix_create(lv_scr_act());
   lv_btnmatrix_set_map(btnm1, btnm_map);
   lv_btnmatrix_set_btn_ctrl(btnm1, 0, LV_BTNMATRIX_CTRL_CHECKABLE);
@@ -53,6 +58,8 @@ void customMenu(){
   lv_btnmatrix_set_btn_ctrl(btnm1, 5, LV_BTNMATRIX_CTRL_CHECKABLE);
   lv_obj_align(btnm1, LV_ALIGN_CENTER, MARGIN_LEFT, MARGIN_TOP);
   lv_obj_add_event_cb(btnm1, event_handler, LV_EVENT_ALL, NULL);
+  Braccio.lvgl_unlock();
+
   Braccio.connectJoystickTo(btnm1);
 }
 
diff --git a/examples/LCD_Motors/LCD_Motors.ino b/examples/LCD_Motors/LCD_Motors.ino
index f3a0395..80e5fd7 100644
--- a/examples/LCD_Motors/LCD_Motors.ino
+++ b/examples/LCD_Motors/LCD_Motors.ino
@@ -32,6 +32,7 @@ static const char * btnm_map[] = {"Motor 1", "Motor 2", "\n",
 
 static void event_handler(lv_event_t * e)
 {
+  Braccio.lvgl_lock();
   lv_event_code_t code = lv_event_get_code(e);
   lv_obj_t * obj = lv_event_get_target(e);
   if (code == LV_EVENT_CLICKED) {
@@ -63,9 +64,12 @@ static void event_handler(lv_event_t * e)
       selected_motor = 0;
     }
   }
+  Braccio.lvgl_unlock();
 }
 
-void customMenu() {
+void customMenu()
+{
+  Braccio.lvgl_lock();
   lv_obj_t * btnm1 = lv_btnmatrix_create(lv_scr_act());
   lv_btnmatrix_set_map(btnm1, btnm_map);
   lv_btnmatrix_set_btn_ctrl(btnm1, 0, LV_BTNMATRIX_CTRL_CHECKABLE);
@@ -76,6 +80,8 @@ void customMenu() {
   lv_btnmatrix_set_btn_ctrl(btnm1, 5, LV_BTNMATRIX_CTRL_CHECKABLE);
   lv_obj_align(btnm1, LV_ALIGN_CENTER, 0, 0);
   lv_obj_add_event_cb(btnm1, event_handler, LV_EVENT_ALL, NULL);
+  Braccio.lvgl_unlock();
+
   Braccio.connectJoystickTo(btnm1);
 }
 
diff --git a/src/Braccio++.cpp b/src/Braccio++.cpp
index fa11655..d81f682 100644
--- a/src/Braccio++.cpp
+++ b/src/Braccio++.cpp
@@ -81,6 +81,7 @@ BraccioClass::BraccioClass()
 , _lvgl_draw_buf{}
 , _lvgl_p_obj_group{nullptr}
 , _lvgl_kb_indev{nullptr}
+, _display_mtx{}
 , _display_thd{}
 , _pd_events{}
 , _pd_timer{}
@@ -238,6 +239,7 @@ int BraccioClass::getKey() {
 
 void BraccioClass::connectJoystickTo(lv_obj_t* obj)
 {
+  mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
   lv_group_add_obj(_lvgl_p_obj_group, obj);
   lv_indev_set_group(_lvgl_kb_indev, _lvgl_p_obj_group);
 }
@@ -409,31 +411,40 @@ void BraccioClass::lvgl_init()
 
 void BraccioClass::display_thread_func()
 {
-  for(;;)
+  for(;; delay(LV_DISP_DEF_REFR_PERIOD))
   {
+    mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
     lv_task_handler();
     lv_tick_inc(LV_DISP_DEF_REFR_PERIOD);
-    delay(LV_DISP_DEF_REFR_PERIOD);
   }
 }
 
 void BraccioClass::lvgl_splashScreen(unsigned long const duration_ms)
 {
   extern const lv_img_dsc_t img_bulb_gif;
+  lv_obj_t * img = nullptr;
 
-  LV_IMG_DECLARE(img_bulb_gif);
-  lv_obj_t* img = lv_gif_create(lv_scr_act());
-  lv_gif_set_src(img, &img_bulb_gif);
-  lv_obj_align(img, LV_ALIGN_CENTER, 0, 0);
+  {
+    mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
+    LV_IMG_DECLARE(img_bulb_gif);
+    img = lv_gif_create(lv_scr_act());
+    lv_gif_set_src(img, &img_bulb_gif);
+    lv_obj_align(img, LV_ALIGN_CENTER, 0, 0);
+  }
 
   /* Wait until the splash screen duration is over. */
   for (unsigned long const start = millis(); millis() - start < duration_ms; delay(10)) { }
 
-  lv_obj_del(img);
+  {
+    mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
+    lv_obj_del(img);
+  }
 }
 
 void BraccioClass::lvgl_pleaseConnectPower()
 {
+  mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
+
   lv_style_set_text_font(&_lv_style, &lv_font_montserrat_32);
   lv_obj_t * label1 = lv_label_create(lv_scr_act());
   lv_obj_add_style(label1, &_lv_style, 0);
@@ -445,7 +456,8 @@ void BraccioClass::lvgl_pleaseConnectPower()
 
 void BraccioClass::lvgl_defaultMenu()
 {
-  // TODO: create a meaningful default menu
+  mbed::ScopedLock<rtos::Mutex> lock(_display_mtx);
+
   lv_style_set_text_font(&_lv_style, &lv_font_montserrat_32);
   lv_obj_t * label1 = lv_label_create(lv_scr_act());
   lv_obj_add_style(label1, &_lv_style, 0);
diff --git a/src/Braccio++.h b/src/Braccio++.h
index 4dd1a9f..4e5ecf9 100644
--- a/src/Braccio++.h
+++ b/src/Braccio++.h
@@ -96,6 +96,9 @@ class BraccioClass
   inline bool isJoystickPressed_DOWN()   { return (digitalRead(BTN_DOWN) == LOW); }
   inline bool isButtonPressed_ENTER()    { return (digitalRead(BTN_ENTER) == LOW); }
 
+  inline void lvgl_lock  () { _display_mtx.lock(); }
+  inline void lvgl_unlock() { _display_mtx.unlock(); }
+
   static BraccioClass& get_default_instance() {
     static BraccioClass dev;
     return dev;
@@ -151,6 +154,7 @@ class BraccioClass
   lv_group_t * _lvgl_p_obj_group;
   lv_indev_t * _lvgl_kb_indev;
   lv_style_t _lv_style;
+  rtos::Mutex _display_mtx;
   rtos::Thread _display_thd;
   bool backlight_init();
   void display_init();