diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 3515025e..2a9be8ed 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -36,7 +36,7 @@ jobs:
       run: platformio run --environment esp32doit-devkit-v1-usb
 
     - name: Perform static checks on target esp32doit-devkit-v1-usb
-      run: platformio check --environment esp32doit-devkit-v1-usb --skip-packages
+      run: platformio check --environment esp32doit-devkit-v1-usb
 
     - name: Perform static checks on native environment
       run: platformio check --environment test
diff --git a/lib/Gfx/LampWidget.h b/lib/Gfx/LampWidget.h
index 80f89d70..4a731d2a 100644
--- a/lib/Gfx/LampWidget.h
+++ b/lib/Gfx/LampWidget.h
@@ -119,10 +119,13 @@ class LampWidget : public Widget
      */
     LampWidget& operator=(const LampWidget& widget)
     {
-        m_isOn      = widget.m_isOn;
-        m_colorOff  = widget.m_colorOff;
-        m_colorOn   = widget.m_colorOn;
-        m_width     = widget.m_width;
+        if (&widget != this)
+        {
+            m_isOn      = widget.m_isOn;
+            m_colorOff  = widget.m_colorOff;
+            m_colorOn   = widget.m_colorOn;
+            m_width     = widget.m_width;
+        }
 
         return *this;
     }
diff --git a/lib/Gfx/ProgressBar.h b/lib/Gfx/ProgressBar.h
index 992b9831..20f8c8dd 100644
--- a/lib/Gfx/ProgressBar.h
+++ b/lib/Gfx/ProgressBar.h
@@ -110,9 +110,12 @@ class ProgressBar : public Widget
      */
     ProgressBar& operator=(const ProgressBar& widget)
     {
-        m_progress  = widget.m_progress;
-        m_color     = widget.m_color;
-        m_algorithm = widget.m_algorithm;
+        if (&widget != this)
+        {
+            m_progress  = widget.m_progress;
+            m_color     = widget.m_color;
+            m_algorithm = widget.m_algorithm;
+        }
 
         return *this;
     }
diff --git a/lib/Gfx/Widget.hpp b/lib/Gfx/Widget.hpp
index 45fdb64c..0bda5ee6 100644
--- a/lib/Gfx/Widget.hpp
+++ b/lib/Gfx/Widget.hpp
@@ -80,10 +80,13 @@ class Widget
     */
     Widget& operator=(const Widget& widget)
     {
-        m_type = widget.m_type;
-        m_posX = widget.m_posX;
-        m_posY = widget.m_posY;
-        /* m_name is not assigned! */
+        if (&widget != this)
+        {
+            m_type = widget.m_type;
+            m_posX = widget.m_posX;
+            m_posY = widget.m_posY;
+            /* m_name is not assigned! */
+        }
 
         return *this;
     }
diff --git a/lib/LinkedList/LinkedList.hpp b/lib/LinkedList/LinkedList.hpp
index 7dad2717..3614b2db 100644
--- a/lib/LinkedList/LinkedList.hpp
+++ b/lib/LinkedList/LinkedList.hpp
@@ -646,13 +646,16 @@ class DLinkedList
      */
     DLinkedList& operator=(const DLinkedList& list)
     {
-        ListElement<T>* listElement = list.m_head;
-
-        clear();
-        while(nullptr != listElement)
+        if (&list != this)
         {
-            append(listElement->getElement());
-            listElement = listElement->getNext();
+            ListElement<T>* listElement = list.m_head;
+
+            clear();
+            while(nullptr != listElement)
+            {
+                append(listElement->getElement());
+                listElement = listElement->getNext();
+            }
         }
 
         return *this;
diff --git a/lib/Utilities/SimpleTimer.hpp b/lib/Utilities/SimpleTimer.hpp
index fe98569c..90ee496a 100644
--- a/lib/Utilities/SimpleTimer.hpp
+++ b/lib/Utilities/SimpleTimer.hpp
@@ -99,10 +99,13 @@ class SimpleTimer
      */
     SimpleTimer& operator=(const SimpleTimer& sTimer)
     {
-        m_isRunning = sTimer.m_isRunning;
-        m_isTimeout = sTimer.m_isTimeout;
-        m_duration  = sTimer.m_duration;
-        m_start     = sTimer.m_start;
+        if (&sTimer != this)
+        {
+            m_isRunning = sTimer.m_isRunning;
+            m_isTimeout = sTimer.m_isTimeout;
+            m_duration  = sTimer.m_duration;
+            m_start     = sTimer.m_start;
+        }
 
         return *this;
     }
diff --git a/platformio.ini b/platformio.ini
index cd425aab..1bea8a5f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -49,8 +49,9 @@ check_patterns =
     lib/StateMachine
     lib/Utilities
 check_flags =
-    cppcheck: --std=c++11 --inline-suppr --suppress=noExplicitConstructor --suppress=unreadVariable --suppress=unusedFunction
+    cppcheck: --std=c++11 --inline-suppr --suppress=noExplicitConstructor --suppress=unreadVariable --suppress=unusedFunction --suppress=*:*/libdeps/*
     clangtidy: --checks=-*,clang-analyzer-*,performance-*
+check_skip_packages = yes
 ; Check for the compatibility with frameworks and dev/platforms
 lib_compat_mode = strict
 ; Parses ALL C/C++ source files of the project and follows only by nested includes (#include ..., chain…) from the libraries.
@@ -68,6 +69,7 @@ check_tool = ${esp32_env_data.check_tool}
 check_severity = ${esp32_env_data.check_severity}
 check_patterns = ${esp32_env_data.check_patterns}
 check_flags = ${esp32_env_data.check_flags}
+check_skip_packages = ${esp32_env_data.check_skip_packages}
 lib_compat_mode = ${esp32_env_data.lib_compat_mode}
 lib_ldf_mode = ${esp32_env_data.lib_ldf_mode}
 build_flags = ${esp32_env_data.build_flags}
@@ -93,6 +95,7 @@ check_tool = ${esp32_env_data.check_tool}
 check_severity = ${esp32_env_data.check_severity}
 check_patterns = ${esp32_env_data.check_patterns}
 check_flags = ${esp32_env_data.check_flags}
+check_skip_packages = ${esp32_env_data.check_skip_packages}
 lib_compat_mode = ${esp32_env_data.lib_compat_mode}
 lib_ldf_mode = ${esp32_env_data.lib_ldf_mode}
 build_flags = ${esp32_env_data.build_flags}
@@ -125,3 +128,4 @@ check_tool = ${esp32_env_data.check_tool}
 check_severity = ${esp32_env_data.check_severity}
 check_patterns = ${esp32_env_data.check_patterns}
 check_flags = ${esp32_env_data.check_flags}
+check_skip_packages = ${esp32_env_data.check_skip_packages}