diff --git a/bsl/nucleo_f042k6/bslConfig.cmake b/bsl/nucleo_f042k6/bslConfig.cmake
index d6d8987..37186e5 100644
--- a/bsl/nucleo_f042k6/bslConfig.cmake
+++ b/bsl/nucleo_f042k6/bslConfig.cmake
@@ -33,6 +33,7 @@ set(CSL_INCLUDES
 set(C_FLAGS 
 	${CPU_MCU}
 	-mthumb				#Instruction set : https://stackoverflow.com/questions/10638130/what-is-the-arm-thumb-instruction-set 
+	##	-O1
 	-Wall				#Error : If you don't know this one please chek basical compiling 
 	-fdata-sections		#Optimization : Linker can perform optimizations to improve locality of reference in the instruction space.
 	-fdiagnostics-color=always
diff --git a/ideas/delay_structure.cpp b/ideas/delay_structure.cpp
index 56b7344..b8cf823 100644
--- a/ideas/delay_structure.cpp
+++ b/ideas/delay_structure.cpp
@@ -33,8 +33,6 @@ struct STM_Hal_Delay : Delay
 };
 
 
-
-
 int main()
 {
     FreeRTOS_Delay dly;
diff --git a/main.cpp b/main.cpp
index e99a1b3..cff9c03 100644
--- a/main.cpp
+++ b/main.cpp
@@ -11,6 +11,8 @@ int main(int argc, char *argv[])
 	stmStart();
 	
 	delayInitMs(8000000, 1000); 
+//	FreeRTOS_Delay dly;
+//	dly.wait(); 
 	
 	pinConfig(pinB3, output, pushPull, def_res, def_speed);
 	pinConfig(pinA0, input, def_stage, pullDown, def_speed);	
@@ -30,9 +32,9 @@ int main(int argc, char *argv[])
 	//blinks 10 times to indicate the sicsessfull init if the device
 	for(i = 0 ; i < 10 ; i++)
 	{
-		delayMs(100); 
+//		delayMs(100); 
 		pinToggle(pinB3);
-		delayMs(100); 
+//		delayMs(100); 
 	}
 	
 	pinWrite(pinB3,0);
@@ -60,7 +62,7 @@ int main(int argc, char *argv[])
 		{
 			pinWrite(pinB3,0);
 		}
-		delayMs(100); 
+//		delayMs(100); 
 	}
 	return 1;
 }
diff --git a/main.hpp b/main.hpp
index a6a4577..295390d 100644
--- a/main.hpp
+++ b/main.hpp
@@ -9,4 +9,40 @@
 	#include "bsl/nucleo_f042k6/bsl_nucleo_f042k6.hpp"
 #endif
 
+
+struct Delay
+{
+    virtual void wait() = 0;
+};
+
+
+struct FreeRTOS_Delay : Delay
+{
+    void wait() override
+    {
+        _wait();
+    }
+    private:
+    static void _wait()
+    {
+        for(volatile int i = 0; i < 10; i++);
+    }
+};
+
+struct STM_Hal_Delay : Delay
+{
+        void wait() override
+    {
+        _wait();
+    }
+    private:
+    static void _wait()
+    {
+        // systick stuff here
+        for(volatile int i = 0; i < 1000; i++);
+    }
+};
+
+
+
 #endif /* MAIN_H */
diff --git a/utils/menu/menu.h b/utils/menu/menu.h
index a60f303..c064940 100644
--- a/utils/menu/menu.h
+++ b/utils/menu/menu.h
@@ -1,10 +1,48 @@
+/**
+  **************************************************************************************************
+  * @file		menu.h
+  * @author		Kerem Yollu & Edwin Koch
+  * @date		08.11.2021
+  * @version	1.0
+  ************************************************************************************************** 
+  * @brief		Basic menu implementation for diefferent use cases
+  **************************************************************************************************
+*/
 
+#ifndef _MENU_H
+#define _MENU_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
 
+#include <stdint.h>
 
+void menuGoUp(); 
+void menuGoDown(); 
+void menuGoLeft(); 
+void menuGoRight(); 
 
+uint8_t menuGetEnter(); 
+uint8_t menuGetEscape(); 
+uint8_t menuGetReturn(); 
+uint8_t menuGetClear();
 
 
+void menuSendEnter(); 
+void menuGetEscape(); 
+void menuGetReturn(); 
+void menuGetClear();
+
+void menuPrintChar(uint8_t char); 
+void menuMainMenu(); 
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _MENU_H