diff --git a/UtilCore.cpp b/UtilCore.cpp
index cbbfd11..29b14f6 100644
--- a/UtilCore.cpp
+++ b/UtilCore.cpp
@@ -119,6 +119,40 @@ char * BytesToBinStr( const char * Bytes, const int Len, const char * Separator,
 }
 //---------------------------------------------------------------------------
 
+char * IntToBinStr( const int Bytes, const int Len, const char * Separator, char * OutBuf )
+{
+    char        * TempBuf;
+    char        * BufPos;
+    bool        First       = true;
+    char        SepLen      = (Separator)? strlen(Separator) : 0;
+    u_int8_t    Byte;
+
+    // Select/create  output buffer
+    if (!OutBuf) {
+        TempBuf = ReturnStr;
+    }
+    else {
+//        if (!*OutBuf)
+//            *OutBuf = (char*)malloc( Len*(8+SepLen)+1 );
+//        TempBuf = *OutBuf;
+        TempBuf = OutBuf;
+    }
+    BufPos = TempBuf;
+
+    // Print each byte as 8-bit binary
+    for (int i=Len-1; i>=0; i--) {
+        Byte = (Bytes >> (i*8)) & 0xFF;
+        sprintf( BufPos, "%s%c%c%c%c%c%c%c%c", ((First || !Separator)? "" : Separator),
+                 (Byte & 0x80)?'1':'0', (Byte & 0x40)?'1':'0', (Byte & 0x20)?'1':'0', (Byte & 0x10)?'1':'0',
+                 (Byte & 0x08)?'1':'0', (Byte & 0x04)?'1':'0', (Byte & 0x02)?'1':'0', (Byte & 0x01)?'1':'0' );
+        BufPos += (First)? 8 : 8+SepLen;
+        First = false;
+    }
+    *BufPos = 0;
+    return TempBuf;
+}
+//---------------------------------------------------------------------------
+
 char * HexStrToBytes( const char * Str, const int Len, const char * Separator, char * OutBuf )
 {
     char        * TempBuf;
diff --git a/UtilCore.h b/UtilCore.h
index dd4425b..d5072bb 100644
--- a/UtilCore.h
+++ b/UtilCore.h
@@ -18,8 +18,10 @@
 
 // Convert raw bytes to string
 char * BytesToSafeStr( const char * Bytes, const int Len, const bool NoCrLf = false, const char SpecChar = '.', char * OutBuf = NULL );
-char * BytesToHexStr( const char * Bytes, const int Len, const char *Separator = " ", char * OutBuf = NULL );
-char * BytesToBinStr( const char * Bytes, const int Len, const char *Separator = " ", char * OutBuf = NULL );
+char * BytesToHexStr( const char * Bytes, const int Len, const char * Separator = " ", char * OutBuf = NULL );
+char * BytesToBinStr( const char * Bytes, const int Len, const char * Separator = " ", char * OutBuf = NULL );
+
+char * IntToBinStr( const int Bytes, const int Len, const char * Separator = " ", char * OutBuf = NULL );
 
 // Convert string to raw bytes
 inline u_int8_t HexToInt( char Digit ) {