diff --git a/Logging.cpp b/Logging.cpp
index aede239..5464fc6 100644
--- a/Logging.cpp
+++ b/Logging.cpp
@@ -1,120 +1,147 @@
 #include "Logging.h"
 
-void Logging::Init(int level, long baud){
+void Logging::init(int level, long baud){
     _level = constrain(level,LOG_LEVEL_NOOUTPUT,LOG_LEVEL_VERBOSE);
     _baud = baud;
     Serial.begin(_baud);
+	
+	HardwareSerial &serial = Serial;
+	_stream = &static_cast<Stream&>(serial);
+	
+	info("Start logging");
+}
+void Logging::init(int level, long baud, Stream* additionalLogger) {
+	_additionalLogger = additionalLogger;
+	init(level, baud);
 }
 
-void Logging::Error(char* msg, ...){
-    if (LOG_LEVEL_ERRORS <= _level) {   
-		print ("ERROR: ",0);
+void Logging::error(const char* msg, ...){
+    if (LOG_LEVEL_ERRORS <= _level) {
+		print("E: ");
         va_list args;
         va_start(args, msg);
-        print(msg,args);
+        printFormat(msg, args);
     }
 }
 
 
-void Logging::Info(char* msg, ...){
+void Logging::info(const char* msg, ...){
     if (LOG_LEVEL_INFOS <= _level) {
+		print("I:  ");
         va_list args;
         va_start(args, msg);
-        print(msg,args);
+        printFormat(msg,args);
     }
 }
 
-void Logging::Debug(char* msg, ...){
+void Logging::debug(const char* msg, ...){
     if (LOG_LEVEL_DEBUG <= _level) {
+		print("D:   ");
         va_list args;
         va_start(args, msg);
-        print(msg,args);
+        printFormat(msg,args);
     }
 }
 
 
-void Logging::Verbose(char* msg, ...){
+void Logging::verbose(const char* msg, ...){
     if (LOG_LEVEL_VERBOSE <= _level) {
+		print("V:    ");
         va_list args;
         va_start(args, msg);
-        print(msg,args);
+        printFormat(msg,args);
     }
 }
 
+void Logging::print(const char *msg) {
+	_stream->print(msg);
+	if (_additionalLogger != 0)
+		_additionalLogger->print(msg);
+}
+void Logging::printFormat(const char *format, va_list args) {
+	printFormat(_stream, format, args);
+	if (_additionalLogger != 0)
+		printFormat(_additionalLogger, format, args);
+}
 
-
- void Logging::print(const char *format, va_list args) {
-    //
+void Logging::printFormat(Stream *stream, const char *format, va_list args) {
     // loop through format string
     for (; *format != 0; ++format) {
         if (*format == '%') {
             ++format;
             if (*format == '\0') break;
             if (*format == '%') {
-                Serial.print(*format);
+                stream->print(*format);
                 continue;
             }
             if( *format == 's' ) {
 				register char *s = (char *)va_arg( args, int );
-				Serial.print(s);
+				stream->print(s);
 				continue;
 			}
             if( *format == 'd' || *format == 'i') {
-				Serial.print(va_arg( args, int ),DEC);
+				stream->print(va_arg( args, int ),DEC);
+				continue;
+			}
+            if( *format == 'f') {
+				stream->print(va_arg( args, double ),DEC);
 				continue;
 			}
             if( *format == 'x' ) {
-				Serial.print(va_arg( args, int ),HEX);
+				stream->print(va_arg( args, int ),HEX);
 				continue;
 			}
             if( *format == 'X' ) {
-				Serial.print("0x");
-				Serial.print(va_arg( args, int ),HEX);
+				stream->print("0x");
+				stream->print(va_arg( args, int ),HEX);
 				continue;
 			}
             if( *format == 'b' ) {
-				Serial.print(va_arg( args, int ),BIN);
+				stream->print(va_arg( args, int ),BIN);
 				continue;
 			}
             if( *format == 'B' ) {
-				Serial.print("0b");
-				Serial.print(va_arg( args, int ),BIN);
+				stream->print("0b");
+				stream->print(va_arg( args, int ),BIN);
 				continue;
 			}
             if( *format == 'l' ) {
-				Serial.print(va_arg( args, long ),DEC);
+				stream->print(va_arg( args, long ),DEC);
 				continue;
 			}
 
             if( *format == 'c' ) {
-				Serial.print(va_arg( args, int ));
+				stream->print(va_arg( args, int ));
 				continue;
 			}
             if( *format == 't' ) {
 				if (va_arg( args, int ) == 1) {
-					Serial.print("T");
+					stream->print("T");
 				}
 				else {
-					Serial.print("F");				
+					stream->print("F");				
 				}
 				continue;
 			}
             if( *format == 'T' ) {
 				if (va_arg( args, int ) == 1) {
-					Serial.print("true");
+					stream->print("true");
 				}
 				else {
-					Serial.print("false");				
+					stream->print("false");				
 				}
 				continue;
 			}
 
         }
-        Serial.print(*format);
+        stream->print(*format);
     }
+    stream->println();
  }
  
- Logging Log = Logging();
+ 
+
+Logging Log = Logging();
 
  
  
diff --git a/Logging.h b/Logging.h
index 930fa1b..4b71bd9 100644
--- a/Logging.h
+++ b/Logging.h
@@ -7,11 +7,9 @@
 #else
 	#include "WProgram.h"
 #endif
-//#include "pins_arduino.h"
-extern "C" {
-  #include <avr/io.h>
-}
 
+#include <ctype.h>
+#include <pgmspace.h>
 
 #define LOG_LEVEL_NOOUTPUT 0 
 #define LOG_LEVEL_ERRORS 1
@@ -22,8 +20,6 @@ extern "C" {
 // default loglevel if nothing is set from user
 #define LOGLEVEL LOG_LEVEL_DEBUG 
 
-
-#define CR "\r\n"
 #define LOGGING_VERSION 1
 
 /*!
@@ -84,7 +80,8 @@ class Logging {
 	* \return void
 	*
 	*/
-	void Init(int level, long baud);
+	void init(int level, long baud);
+	void init(int level, long baud, Stream* additionalLogger);
 	
     /**
 	* Output an error message. Output message contains
@@ -95,7 +92,7 @@ class Logging {
 	* \param ... any number of variables
 	* \return void
 	*/
-    void Error(char* msg, ...);
+    void error(const char* msg, ...);
 	
     /**
 	* Output an info message. Output message contains
@@ -107,7 +104,7 @@ class Logging {
 	* \return void
 	*/
 
-   void Info(char* msg, ...);
+   void info(const char* msg, ...);
 	
     /**
 	* Output an debug message. Output message contains
@@ -119,7 +116,7 @@ class Logging {
 	* \return void
 	*/
 
-    void Debug(char* msg, ...);
+    void debug(const char* msg, ...);
 	
     /**
 	* Output an verbose message. Output message contains
@@ -131,11 +128,15 @@ class Logging {
 	* \return void
 	*/
 
-    void Verbose(char* msg, ...);   
-
+    void verbose(const char* msg, ...);   
     
 private:
-    void print(const char *format, va_list args);
+    void print(const char *msg);
+    void printFormat(const char *format, va_list args);
+    void printFormat(Stream *stream, const char *format, va_list args);
+	
+	Stream* _stream;
+	Stream* _additionalLogger;
 };
 
 extern Logging Log;
diff --git a/Logging.zip b/Logging.zip
deleted file mode 100644
index 6978edb..0000000
Binary files a/Logging.zip and /dev/null differ