diff --git a/MicroView.cpp b/MicroView.cpp
index b4915c1..fdcaa12 100644
--- a/MicroView.cpp
+++ b/MicroView.cpp
@@ -719,6 +719,7 @@ size_t MicroView::write(uint8_t c) {
 				display();
 			} else if (cmdCount=4) {
 				pixel(serCmd[1],serCmd[2],serCmd[3],serCmd[4]);
+				display();
 			}
 			break;
 		}
diff --git a/MicroView.h b/MicroView.h
index 8610764..35b4953 100644
--- a/MicroView.h
+++ b/MicroView.h
@@ -65,25 +65,25 @@
 #define VERTICALLEFTHORIZONTALSCROLL	0x2A
 
 typedef enum CMD {
-	CMD_CLEAR,
-	CMD_INVERT,
-	CMD_CONTRAST,
-	CMD_DISPLAY,
-	CMD_SETCURSOR,
-	CMD_PIXEL,
-	CMD_LINE,
-	CMD_LINEH,
-	CMD_LINEV,
-	CMD_RECT,
-	CMD_RECTFILL,
-	CMD_CIRCLE,
-	CMD_CIRCLEFILL,
-	CMD_DRAWCHAR,
-	CMD_DRAWBITMAP,
-	CMD_GETLCDWIDTH,
-	CMD_GETLCDHEIGHT,
-	CMD_SETCOLOR,
-	CMD_SETDRAWMODE
+	CMD_CLEAR,			//0
+	CMD_INVERT,			//1
+	CMD_CONTRAST,		//2
+	CMD_DISPLAY,		//3
+	CMD_SETCURSOR,		//4
+	CMD_PIXEL,			//5
+	CMD_LINE,			//6
+	CMD_LINEH,			//7
+	CMD_LINEV,			//8
+	CMD_RECT,			//9
+	CMD_RECTFILL,		//10
+	CMD_CIRCLE,			//11
+	CMD_CIRCLEFILL,		//12
+	CMD_DRAWCHAR,		//13
+	CMD_DRAWBITMAP,		//14
+	CMD_GETLCDWIDTH,	//15
+	CMD_GETLCDHEIGHT,	//16
+	CMD_SETCOLOR,		//17
+	CMD_SETDRAWMODE		//18
 } commCommand_t;
 
 class MicroView : public Print{
@@ -103,7 +103,7 @@ public:
 	void setColumnAddress(uint8_t add);
 	void setPageAddress(uint8_t add);
 	
-	// LCD Draw functions	
+	// LCD Draw functions
 	void clear(uint8_t mode);
 	void clear(uint8_t mode, uint8_t c);
 	void invert(boolean inv);
diff --git a/README.md b/README.md
index 14f729a..5265d09 100644
--- a/README.md
+++ b/README.md
@@ -72,12 +72,27 @@ void loop() {
 }
 </code></pre>
 
+### Example 4 - Communication
+<pre><code>
+#include &lt;MicroView.h&gt;
+
+void setup() {
+  uView.begin();
+  uView.clear(PAGE);
+}
+
+void loop() {
+  uView.checkComm();
+}
+</code></pre>
+
 ## History
-**v1.07b: 10th February by JP Liew**
+**v1.07b: 15th February by JP Liew**
 * changed function name stopScroll to scrollStop for consistency
 * added contrast function
 * added invert function
 * added KEYWORD to keywords.txt
+* added checkComm() function to communicate with host PC
 
 **v1.06b: 9th February by JP Liew**
 * fixed Slider negative value not working
diff --git a/keywords.txt b/keywords.txt
index 9cf6bb7..876c626 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -60,6 +60,7 @@ setMinValue	KEYWORD2
 setValue	KEYWORD2
 draw	KEYWORD2
 drawFace	KEYWORD2
+checkComm	KEYWORD2
 
 #######################################
 # Constants (LITERAL1)