diff --git a/libheptaled/.clang b/libheptaled/.clang
new file mode 100644
index 0000000..66b4cb2
--- /dev/null
+++ b/libheptaled/.clang
@@ -0,0 +1 @@
+ --std=c++11
diff --git a/libheptaled/Makefile b/libheptaled/Makefile
new file mode 100644
index 0000000..b11ed6c
--- /dev/null
+++ b/libheptaled/Makefile
@@ -0,0 +1,27 @@
+OBJDIR = bin
+
+CXX = clang++
+CXXFLAGS = --std=c++11 
+LDFLAGS = 
+
+
+$(OBJDIR)/display.o : common.h digit.h display.h display.cpp 
+
+all : start $(OBJDIR)/display.o
+	@echo ":: Done !"
+
+start :
+	@echo " LibHeptaled"
+	@echo "============="
+	@echo ":: Building using $(CXX)"
+
+$(OBJDIR)/%.o : %.cpp Makefile 
+	mkdir -p $$(dirname $@)
+	$(CXX) $(CXXFLAGS) -c $< -o $@
+
+$(OBJDIR)/$(TARGET) : $(OBJDIR)/$(TARGET).o
+	$(CXX) $+ $(LDFLAGS) -o $@
+
+clean :
+	@rm -rf $(OBJDIR)
+
diff --git a/libheptaled/common.h b/libheptaled/common.h
new file mode 100644
index 0000000..56718ae
--- /dev/null
+++ b/libheptaled/common.h
@@ -0,0 +1,12 @@
+#ifndef COMMON_H
+#define COMMON_H COMMON_H
+
+#include <vector>
+
+namespace HeptaLed {
+
+	typedef std::vector<uint8_t> ByteBuffer;
+}
+
+#endif
+
diff --git a/libheptaled/digit.h b/libheptaled/digit.h
new file mode 100644
index 0000000..bb97c96
--- /dev/null
+++ b/libheptaled/digit.h
@@ -0,0 +1,19 @@
+#ifndef DIGIT_H
+#define DIGIT_H DIGIT_H
+
+#include <string>
+
+#include "common.h"
+
+namespace HeptaLed {
+
+	
+	class Digit {
+		public:	
+			virtual void render(std::string::const_iterator stringIt, ByteBuffer::iterator const& bufferIt) = 0;
+		
+	};
+}
+
+
+#endif
diff --git a/libheptaled/display.cpp b/libheptaled/display.cpp
new file mode 100644
index 0000000..f571a99
--- /dev/null
+++ b/libheptaled/display.cpp
@@ -0,0 +1,26 @@
+#include "display.h"
+
+namespace HeptaLed {
+
+	Display& Display::add(std::shared_ptr<Digit> digit) {
+		digits.push_back(digit);
+		return *this;
+	}
+
+	
+	ByteBuffer Display::render(std::string const& s) {
+		ByteBuffer buffer(digits.size());
+	
+		std::string::const_iterator stringIt = s.begin();
+		ByteBuffer::iterator byteIt = buffer.begin();
+	
+		for(DigitVector::iterator it = digits.begin(); it != digits.end(); ++it) {
+			(*it)->render(stringIt,byteIt);
+			++byteIt;
+		}	
+	
+		return buffer;
+	}	
+
+
+}
diff --git a/libheptaled/display.h b/libheptaled/display.h
new file mode 100644
index 0000000..39c131a
--- /dev/null
+++ b/libheptaled/display.h
@@ -0,0 +1,28 @@
+#ifndef DISPLAY_H
+#define DISPLAY_H DISPLAY_H
+
+#include <vector>
+#include <memory>
+#include <string>
+#include <stdint.h>
+
+#include "common.h"
+#include "digit.h"
+
+namespace HeptaLed {
+
+	typedef std::vector<std::shared_ptr<Digit>> DigitVector;
+
+	class Display {
+	
+		public:
+			Display& add(std::shared_ptr<Digit> digit);
+			ByteBuffer render(std::string const& s);	
+
+		private:
+			DigitVector digits;
+	};
+}
+
+
+#endif