diff --git a/Makefile b/Makefile
index b7a2589..acf4a63 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
 cpp_src += $(wildcard *.cpp) 
 cpp_src += $(wildcard ./utils/*.cpp)
+cpp_src += $(wildcard ./interfaces/*.cpp)
 #cpp_src += $(wildcard ./communication/i2c/*.cpp)
 
 #c_src += $(wildcard ./algorithms/*.c)
diff --git a/README.md b/README.md
index 987b6a5..d67df74 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,15 @@
 # KED
 
-Kerems and Edwins Develeppoment platform.
\ No newline at end of file
+Kerems and Edwins Develeppoment platform.
+
+08.08.21 Kerem & Edwin
+	-	Preparing the main implementation (dummy)  of our structure which consists of : 
+		- CSL : Chip Support Layer
+			- CSL for Raspberry 
+			- CSL for STM Nucleo
+		- BSL : Board Support Layer 
+			- BSL for Raspberry 
+			- BSL for Oven Control
+		- Project Level
+			- Integrate BSL dummy fct. to our main.cpp
+
diff --git a/bsl/csl/raspberry/peripherals/pinRaspberry.hpp b/bsl/csl/raspberry/peripherals/pinRaspberry.hpp
new file mode 100644
index 0000000..4ba5ea3
--- /dev/null
+++ b/bsl/csl/raspberry/peripherals/pinRaspberry.hpp
@@ -0,0 +1,15 @@
+#ifndef __PINRASPBERRY_HPP__
+#define __PINRASPBERRY_HPP__
+
+#include <iostream>
+
+struct Pin_Raspberry : Pin<Pin_Raspberry>
+{
+    void writeImpl(bool logic)
+    {
+        std::cout << "Raspberry pin set to " << logic << std::endl;
+    }
+};
+
+
+#endif // __PINRASPBERRY_HPP__
diff --git a/interfaces/pin.hpp b/interfaces/pin.hpp
new file mode 100644
index 0000000..3a265d6
--- /dev/null
+++ b/interfaces/pin.hpp
@@ -0,0 +1,13 @@
+#ifndef __PIN_HPP__
+#define __PIN_HPP__
+
+template <typename Derived>
+struct Pin
+{
+    void write(bool logic)
+    {
+        static_cast<Derived*>(this)->writeImpl(logic);
+    }
+};
+
+#endif // __PIN_HPP__
diff --git a/main.cpp b/main.cpp
index 44cfaa1..a52103e 100644
--- a/main.cpp
+++ b/main.cpp
@@ -14,9 +14,13 @@
 
 CommandManager commander; 
 
+Pin_Raspberry rpin; 
+
 void dummy() 
 {
+	rpin.write(1);
 	std::cout << "Dummy" << std::endl;
+	
 }
 
 int main(int argc, char *argv[])
diff --git a/main.hpp b/main.hpp
index 5c928bb..5e48fef 100644
--- a/main.hpp
+++ b/main.hpp
@@ -5,5 +5,7 @@
 #include <stdint.h>
 #include <unistd.h>
 #include "./utils/commandManager.h"
+#include "./interfaces/pin.hpp"
+#include "bsl/csl/raspberry/peripherals/pinRaspberry.hpp"
 #endif // __MAIN_HPP__
 
diff --git a/runtest b/runtest
index b6a1d39..f1a0c3a 100755
Binary files a/runtest and b/runtest differ