diff --git a/AAL/Arduino.h b/AAL/Arduino.h
index e12310c..065564c 100644
--- a/AAL/Arduino.h
+++ b/AAL/Arduino.h
@@ -3,7 +3,10 @@
 
 #include <stdint.h>
 #include <stdbool.h>
-
+#include <string.h>
+#include <Print.h>
+#include <IPAddress.h>
+#include <Stream.h>
 
 typedef uint32_t millis_t;
 typedef bool boolean;
diff --git a/AAL/IPAddress.cpp b/AAL/IPAddress.cpp
index 009c56f..f6dfc17 100644
--- a/AAL/IPAddress.cpp
+++ b/AAL/IPAddress.cpp
@@ -2,9 +2,15 @@
 
 #include <stdint.h>
 
+
+IPAddress::IPAddress() {
+    memset(_address, 0, sizeof(_address));
+}
+
 IPAddress::IPAddress(uint8_t o1, uint8_t o2, uint8_t o3, uint8_t o4) {
     _address[0] = o1;
     _address[1] = o2;
     _address[2] = o3;
     _address[3] = o4;
-}
\ No newline at end of file
+}
+
diff --git a/AAL/IPAddress.h b/AAL/IPAddress.h
index 8e2cca9..cd07d23 100644
--- a/AAL/IPAddress.h
+++ b/AAL/IPAddress.h
@@ -9,6 +9,7 @@ class IPAddress {
         uint8_t *raw_address() { return _address; };
     public:
         IPAddress(uint8_t o1, uint8_t o2, uint8_t o3, uint8_t o4);
+        IPAddress();
 };
 
 
diff --git a/AAL/Print.cpp b/AAL/Print.cpp
new file mode 100644
index 0000000..0c54fa9
--- /dev/null
+++ b/AAL/Print.cpp
@@ -0,0 +1,7 @@
+#include <Arduino.h>
+#include <Print.h>
+
+
+Print::Print() {
+    
+}
\ No newline at end of file
diff --git a/AAL/Print.h b/AAL/Print.h
new file mode 100644
index 0000000..49d7ca5
--- /dev/null
+++ b/AAL/Print.h
@@ -0,0 +1,9 @@
+#ifndef _PRINT_H_
+#define _PRINT_H_
+
+class Print {
+    public:
+        Print();
+};
+
+#endif // _PRINT_H_
\ No newline at end of file
diff --git a/Makefile b/Makefile
index ea9f144..8a55e93 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ CFLAGS+=-I../ioLibrary_Driver/Ethernet -Isrc -IAAL
 OBJDIR=build
 VPATH=src AAL
 
-OBJS=$(addprefix $(OBJDIR)/,PubSubClient.o IPAddress.o Stream.o Arduino.o)
+OBJS=$(addprefix $(OBJDIR)/,PubSubClient.o IPAddress.o Stream.o Arduino.o Print.o)
 
 all:	$(OBJS)
 	$(AR) rcs pubsub.a $^