diff --git a/usart/main.cpp b/usart/main.cpp
index cdbfbe0..d6ebcc0 100644
--- a/usart/main.cpp
+++ b/usart/main.cpp
@@ -1,7 +1,7 @@
 /*
 * Copyright (c) by BlackMark 2015-2016
-* Date 05/01/2016
-* Version 1.4
+* Date 21/05/2016
+* Version 1.5
 */
 
 #include <stdio.h>
@@ -18,89 +18,89 @@ int main()
 
 	array<char, 64> arrBuffer;
 
-	cUSART.transmitString( "\r\nSizes: \r\n" );
+	cUSART << "\r\nSizes: \r\n";
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( char ) );
-	cUSART.transmitString( "sizeof( char ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( char ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( unsigned char ) );
-	cUSART.transmitString( "sizeof( unsigned char ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( unsigned char ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( short int ) );
-	cUSART.transmitString( "sizeof( short int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( short int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( unsigned short int ) );
-	cUSART.transmitString( "sizeof( unsigned short int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( unsigned short int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( int ) );
-	cUSART.transmitString( "sizeof( int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( unsigned int ) );
-	cUSART.transmitString( "sizeof( unsigned int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( unsigned int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( long int ) );
-	cUSART.transmitString( "sizeof( long int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( long int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( unsigned long int ) );
-	cUSART.transmitString( "sizeof( unsigned long int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( unsigned long int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( long long int ) );
-	cUSART.transmitString( "sizeof( long long int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( long long int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( unsigned long long int ) );
-	cUSART.transmitString( "sizeof( unsigned long long int ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( unsigned long long int ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( float ) );
-	cUSART.transmitString( "sizeof( float ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( float ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( double ) );
-	cUSART.transmitString( "sizeof( double ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( double ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n", sizeof( long double ) );
-	cUSART.transmitString( "sizeof( long double ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( long double ) = ";
+	cUSART << arrBuffer.data();
 
 	sprintf( arrBuffer.data(), "%d\r\n\r\n", sizeof( void* ) );
-	cUSART.transmitString( "sizeof( void* ) = " );
-	cUSART.transmitString( arrBuffer.data() );
+	cUSART << "sizeof( void* ) = ";
+	cUSART << arrBuffer.data();
 
 	while( true )
 	{
 		sprintf( arrBuffer.data(), "%lu", ui32Counter++ );
-		cUSART.transmitString( "This has been running for \"" );
-		cUSART.transmitString( arrBuffer.data() );
-		cUSART.transmitString( "\" seconds!\r\n" );
+		cUSART << "This has been running for \"";
+		cUSART << arrBuffer.data();
+		cUSART << "\" seconds!\r\n";
 
 		if( !cUSART.receiveLine( arrBuffer.data(), arrBuffer.size(), "\r" ) )
 		{
-			cUSART.transmitString( "Receive error: " );
+			cUSART << "Receive error: ";
 		}
 		else
 		{
-			cUSART.transmitString( "Echo: " );
+			cUSART << "Echo: ";
 		}
 		
-		cUSART.transmitString( arrBuffer.data() );
-		cUSART.transmitString( "\r\n" );
+		cUSART << arrBuffer.data();
+		cUSART << "\r\n";
 
 		uint8_t ui8Byte;
 
 		if( cUSART.receiveByte( ui8Byte, 1000 ) )
 		{
 			cUSART.transmitByte( ui8Byte );
-			cUSART.transmitString( "\r\n" );
+			cUSART << "\r\n";
 		}
 	}
 
diff --git a/usart/usart.h b/usart/usart.h
index 399214c..8cd3d88 100644
--- a/usart/usart.h
+++ b/usart/usart.h
@@ -1,7 +1,7 @@
 /*
 * Copyright (c) by BlackMark 2015-2016
-* Date 20/05/2016
-* Version 2.6
+* Date 21/05/2016
+* Version 2.7
 */
 
 #ifndef USART_H
@@ -144,6 +144,12 @@ public:
 
 	void receiveInterruptHandler();
 	void transmitInterruptHandler();
+
+	inline USART0& operator<<( const char *szString )
+	{
+		transmitString( szString );
+		return *this;
+	}
 };
 
 #ifdef SECOND_USART