diff --git a/examples/scroll/lv_example_scroll_3.c b/examples/scroll/lv_example_scroll_3.c
index 8add4e8f0..a48476b48 100644
--- a/examples/scroll/lv_example_scroll_3.c
+++ b/examples/scroll/lv_example_scroll_3.c
@@ -11,7 +11,7 @@ static void float_btn_event_cb(lv_event_t * e)
     if(code == LV_EVENT_CLICKED) {
         lv_obj_t * list = lv_event_get_user_data(e);
         char buf[32];
-        lv_snprintf(buf, sizeof(buf), "Track %d", btn_cnt);
+        lv_snprintf(buf, sizeof(buf), "Track %d", (int)btn_cnt);
         lv_obj_t * list_btn = lv_list_add_btn(list, LV_SYMBOL_AUDIO, buf);
         btn_cnt++;
 
@@ -32,7 +32,7 @@ void lv_example_scroll_3(void)
 
     for(btn_cnt = 1; btn_cnt <= 2; btn_cnt++) {
         char buf[32];
-        lv_snprintf(buf, sizeof(buf), "Track %d", btn_cnt);
+        lv_snprintf(buf, sizeof(buf), "Track %d", (int)btn_cnt);
         lv_list_add_btn(list, LV_SYMBOL_AUDIO, buf);
     }
 
diff --git a/examples/widgets/bar/lv_example_bar_6.c b/examples/widgets/bar/lv_example_bar_6.c
index fca3d5306..e67e6792a 100644
--- a/examples/widgets/bar/lv_example_bar_6.c
+++ b/examples/widgets/bar/lv_example_bar_6.c
@@ -18,7 +18,7 @@ static void event_cb(lv_event_t * e)
     label_dsc.font = LV_FONT_DEFAULT;
 
     char buf[8];
-    lv_snprintf(buf, sizeof(buf), "%d", lv_bar_get_value(obj));
+    lv_snprintf(buf, sizeof(buf), "%d", (int)lv_bar_get_value(obj));
 
     lv_point_t txt_size;
     lv_txt_get_size(&txt_size, buf, label_dsc.font, label_dsc.letter_space, label_dsc.line_space, LV_COORD_MAX, label_dsc.flag);
diff --git a/examples/widgets/chart/lv_example_chart_4.c b/examples/widgets/chart/lv_example_chart_4.c
index f480f0efc..5f5583fd6 100644
--- a/examples/widgets/chart/lv_example_chart_4.c
+++ b/examples/widgets/chart/lv_example_chart_4.c
@@ -18,7 +18,7 @@ static void event_cb(lv_event_t * e)
         int32_t id = lv_chart_get_pressed_point(chart);
         if(id == LV_CHART_POINT_NONE) return;
 
-        LV_LOG_USER("Selected point %d", id);
+        LV_LOG_USER("Selected point %d", (int)id);
 
         lv_chart_series_t * ser = lv_chart_get_series_next(chart, NULL);
         while(ser) {
diff --git a/examples/widgets/checkbox/lv_example_checkbox_2.c b/examples/widgets/checkbox/lv_example_checkbox_2.c
index db4a4a84a..9c4ca8941 100644
--- a/examples/widgets/checkbox/lv_example_checkbox_2.c
+++ b/examples/widgets/checkbox/lv_example_checkbox_2.c
@@ -21,7 +21,7 @@ static void radio_event_handler(lv_event_t * e)
 
     *active_id = lv_obj_get_index(act_cb);
 
-    LV_LOG_USER("Selected radio buttons: %d, %d", active_index_1, active_index_2);
+    LV_LOG_USER("Selected radio buttons: %d, %d", (int)active_index_1, (int)active_index_2);
 }
 
 
@@ -60,7 +60,7 @@ void lv_example_checkbox_2(void)
     lv_obj_add_event_cb(cont1, radio_event_handler, LV_EVENT_CLICKED, &active_index_1);
 
     for (i = 0;i < 5;i++) {
-        lv_snprintf(buf, sizeof(buf), "A %d", i + 1);
+        lv_snprintf(buf, sizeof(buf), "A %d", (int)i + 1);
         radiobutton_create(cont1, buf);
 
     }
@@ -74,7 +74,7 @@ void lv_example_checkbox_2(void)
     lv_obj_add_event_cb(cont2, radio_event_handler, LV_EVENT_CLICKED, &active_index_2);
 
     for (i = 0;i < 3;i++) {
-        lv_snprintf(buf, sizeof(buf), "B %d", i + 1);
+        lv_snprintf(buf, sizeof(buf), "B %d", (int)i + 1);
         radiobutton_create(cont2, buf);
     }
 
diff --git a/examples/widgets/slider/lv_example_slider_1.c b/examples/widgets/slider/lv_example_slider_1.c
index b8f661bbf..920e1fa9d 100644
--- a/examples/widgets/slider/lv_example_slider_1.c
+++ b/examples/widgets/slider/lv_example_slider_1.c
@@ -25,7 +25,7 @@ static void slider_event_cb(lv_event_t * e)
 {
     lv_obj_t * slider = lv_event_get_target(e);
     char buf[8];
-    lv_snprintf(buf, sizeof(buf), "%d%%", lv_slider_get_value(slider));
+    lv_snprintf(buf, sizeof(buf), "%d%%", (int)lv_slider_get_value(slider));
     lv_label_set_text(slider_label, buf);
     lv_obj_align_to(slider_label, slider, LV_ALIGN_OUT_BOTTOM_MID, 0, 10);
 }
diff --git a/examples/widgets/slider/lv_example_slider_3.c b/examples/widgets/slider/lv_example_slider_3.c
index 308754599..8cf88edff 100644
--- a/examples/widgets/slider/lv_example_slider_3.c
+++ b/examples/widgets/slider/lv_example_slider_3.c
@@ -36,7 +36,7 @@ static void slider_event_cb(lv_event_t * e)
         lv_obj_draw_part_dsc_t * dsc = lv_event_get_param(e);
         if(dsc->part == LV_PART_INDICATOR) {
             char buf[16];
-            lv_snprintf(buf, sizeof(buf), "%d - %d", lv_slider_get_left_value(obj), lv_slider_get_value(obj));
+            lv_snprintf(buf, sizeof(buf), "%d - %d", (int)lv_slider_get_left_value(obj), (int)lv_slider_get_value(obj));
 
             lv_point_t label_size;
             lv_txt_get_size(&label_size, buf, LV_FONT_DEFAULT, 0, 0, LV_COORD_MAX, 0);
diff --git a/examples/widgets/win/lv_example_win_1.c b/examples/widgets/win/lv_example_win_1.c
index 213bf793d..ba0385f14 100644
--- a/examples/widgets/win/lv_example_win_1.c
+++ b/examples/widgets/win/lv_example_win_1.c
@@ -5,7 +5,7 @@
 static void event_handler(lv_event_t * e)
 {
     lv_obj_t * obj = lv_event_get_target(e);
-    LV_LOG_USER("Button %d clicked", lv_obj_get_index(obj));
+    LV_LOG_USER("Button %d clicked", (int)lv_obj_get_index(obj));
 }
 
 void lv_example_win_1(void)
diff --git a/src/draw/lv_draw_label.c b/src/draw/lv_draw_label.c
index f57c17be1..3ae4f0e5b 100644
--- a/src/draw/lv_draw_label.c
+++ b/src/draw/lv_draw_label.c
@@ -430,7 +430,7 @@ LV_ATTRIBUTE_FAST_MEM void lv_draw_letter(const lv_point_t * pos_p, const lv_are
         if(letter >= 0x20 &&
            letter != 0xf8ff && /*LV_SYMBOL_DUMMY*/
            letter != 0x200c) { /*ZERO WIDTH NON-JOINER*/
-            LV_LOG_WARN("lv_draw_letter: glyph dsc. not found for U+%X", letter);
+            LV_LOG_WARN("lv_draw_letter: glyph dsc. not found for U+%X", (unsigned int)letter);
         }
         return;
     }
diff --git a/src/extra/widgets/tileview/lv_tileview.c b/src/extra/widgets/tileview/lv_tileview.c
index 7e00c42af..8f8f3c4d2 100644
--- a/src/extra/widgets/tileview/lv_tileview.c
+++ b/src/extra/widgets/tileview/lv_tileview.c
@@ -106,7 +106,7 @@ void lv_obj_set_tile_id(lv_obj_t * tv, uint32_t col_id, uint32_t row_id, lv_anim
         }
     }
 
-    LV_LOG_WARN("No tile found with at (%d,%d) index", col_id, row_id);
+    LV_LOG_WARN("No tile found with at (%d,%d) index", (int)col_id, (int)row_id);
 }
 
 lv_obj_t * lv_tileview_get_tile_act(lv_obj_t * obj)
diff --git a/src/misc/lv_mem.c b/src/misc/lv_mem.c
index 3ceabd702..219915f9a 100644
--- a/src/misc/lv_mem.c
+++ b/src/misc/lv_mem.c
@@ -143,7 +143,7 @@ void * lv_mem_alloc(size_t size)
         lv_mem_monitor_t mon;
         lv_mem_monitor(&mon);
         LV_LOG_ERROR("used: %6d (%3d %%), frag: %3d %%, biggest free: %6d",
-                     (int)mon.total_size - mon.free_size, mon.used_pct, mon.frag_pct,
+                     (int)(mon.total_size - mon.free_size), mon.used_pct, mon.frag_pct,
                      (int)mon.free_biggest_size);
     }