diff --git a/USART.atsln b/USART.atsln
index 81e3f7a..3981c17 100644
--- a/USART.atsln
+++ b/USART.atsln
@@ -3,7 +3,7 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Atmel Studio Solution File, Format Version 11.00
 VisualStudioVersion = 14.0.23107.0
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "USART", "USART\USART.cppproj", "{DCE6C7E3-EE26-4D79-826B-08594B9AD897}"
+Project("{E66E83B9-2572-4076-B26E-6BE79FF3018A}") = "usart", "usart\usart.cppproj", "{DCE6C7E3-EE26-4D79-826B-08594B9AD897}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
diff --git a/USART/USART.cpp b/USART/USART.cpp
index aa47442..e558ed6 100644
--- a/USART/USART.cpp
+++ b/USART/USART.cpp
@@ -1,4 +1,4 @@
-#include "USART.h"
+#include "usart.h"
 
 //////////////////////////////////////////////////////////////////////////
 uint8_t USART0::readUCSRC()
diff --git a/USART/USART.cppproj b/USART/USART.cppproj
index c9adea3..1a12ec0 100644
--- a/USART/USART.cppproj
+++ b/USART/USART.cppproj
@@ -12,9 +12,9 @@
     <OutputFileName>$(MSBuildProjectName)</OutputFileName>
     <OutputFileExtension>.elf</OutputFileExtension>
     <OutputDirectory>$(MSBuildProjectDirectory)\$(Configuration)</OutputDirectory>
-    <AssemblyName>USART</AssemblyName>
-    <Name>USART</Name>
-    <RootNamespace>USART</RootNamespace>
+    <AssemblyName>usart</AssemblyName>
+    <Name>usart</Name>
+    <RootNamespace>usart</RootNamespace>
     <ToolchainFlavour>Native</ToolchainFlavour>
     <KeepTimersRunning>true</KeepTimersRunning>
     <OverrideVtor>false</OverrideVtor>
@@ -160,10 +160,10 @@
     <Compile Include="string.h">
       <SubType>compile</SubType>
     </Compile>
-    <Compile Include="USART.cpp">
+    <Compile Include="usart.cpp">
       <SubType>compile</SubType>
     </Compile>
-    <Compile Include="USART.h">
+    <Compile Include="usart.h">
       <SubType>compile</SubType>
     </Compile>
     <Compile Include="vector.h">
diff --git a/USART/USART.h b/USART/USART.h
index 1e53087..501082c 100644
--- a/USART/USART.h
+++ b/USART/USART.h
@@ -1,7 +1,7 @@
 /*
 * Copyright (c) by BlackMark 2015-2016
-* Date 19/05/2016
-* Version 2.3
+* Date 20/05/2016
+* Version 2.4
 */
 
 #ifndef USART_H
diff --git a/USART/main.cpp b/USART/main.cpp
index 25571dc..a33559a 100644
--- a/USART/main.cpp
+++ b/USART/main.cpp
@@ -6,7 +6,7 @@
 
 #include <stdio.h>
 #include "Clock.h"
-#include "USART.h"
+#include "usart.h"
 
 int main()
 {