diff --git a/src/Example_Code/Main.c b/src/Example_Code/Main.c
index 3192c4b..af33036 100644
--- a/src/Example_Code/Main.c
+++ b/src/Example_Code/Main.c
@@ -40,7 +40,6 @@ void BreakDeal(int sig)
 
 int main(int argc, char* argv[])
 {	
-    int display_offset=7;
     int date=atoi(argv[1]);
     int lanip=atoi(argv[2]);
     int cputemp=atoi(argv[3]);
@@ -186,29 +185,43 @@ int main(int argc, char* argv[])
 
         
         //setCursor(0,0);   
-
+	setTextColor(WHITE); 
         // info display
-	 for(int i = 1; i < time; i++){
-	   if (date+lanip+cpufreq+cputemp+netspeed == 1){
-	   	setTextSize(2);
-        	setTextColor(WHITE); 
-	   	if (date) testdate(date);
-	   	if (lanip) testlanip(lanip);
-	   	if (cpufreq) testcpufreq(cpufreq);
-	   	if (cputemp) testcputemp(cputemp);
-	   	if (netspeed) testnetspeed(netspeed);
+	int sum = date+lanip+cpufreq+cputemp+netspeed;
+	if (sum == 0) {clearDisplay(); return 0;}
+	 for(int i = 1; i < time; i++){	
+	   if (sum == 1){//only one item for display
+	   	if (date) testdate(CENTER, 8);
+	   	if (lanip) testlanip(CENTER, 8);
+	   	if (cpufreq) testcpufreq(CENTER, 8);
+	   	if (cputemp) testcputemp(CENTER, 8);
+	   	if (netspeed) testnetspeed(SPLIT,0);
+		Display();
+        	usleep(1000000);
+        	clearDisplay();
+	   }else if (sum == 2){//two items for display
+		if(date) {testdate(CENTER, 16*(date-1));}
+            	if(lanip) {testlanip(CENTER, 16*(date+lanip-1));}
+            	if(cpufreq) {testcpufreq(CENTER, 16*(date+lanip+cpufreq-1));}
+            	if(cputemp) {testcputemp(CENTER, 16*(date+lanip+cpufreq+cputemp-1));}
+            	if(netspeed) {testnetspeed(MERGE, 16*(date+lanip+cpufreq+cputemp+netspeed-1));}
 		Display();
         	usleep(1000000);
         	clearDisplay();
 	   }
-	   else{
-	   	setTextSize(1);
-        	setTextColor(WHITE); 
-            	if(date) {setCursor(display_offset, 8*(date-1)); testdate(0);}
-            	if(lanip) {setCursor(display_offset, 8*(date+lanip-1)); testlanip(0);}
-            	if(cpufreq) {setCursor(display_offset, 8*(date+lanip+cpufreq-1)); testcpufreq(0);}
-            	if(cputemp) {setCursor(display_offset, 8*(date+lanip+cpufreq+cputemp-1));testcputemp(0);}
-            	if(netspeed) {setCursor(display_offset, 8*(date+lanip+cpufreq+cputemp+netspeed-1));testnetspeed(0);}
+	   else{//more than two items for display
+            	if(date) {testdate(FULL, 8*(date-1));}
+            	if(lanip) {testlanip(FULL, 8*(date+lanip-1));}
+		if(cpufreq && cputemp) {
+			testcpu(8*(date+lanip));
+			if(netspeed) {testnetspeed(FULL, 8*(date+lanip+1+netspeed-1));}
+		}
+		else{
+            		if(cpufreq) {testcpufreq(FULL, 8*(date+lanip+cpufreq-1));}
+            		if(cputemp) {testcputemp(FULL, 8*(date+lanip+cpufreq+cputemp-1));}
+			if(netspeed) {testnetspeed(FULL, 8*(date+lanip+cpufreq+cputemp+netspeed-1));}
+		}
+            	
         	Display();
         	usleep(1000000);
         	clearDisplay();
diff --git a/src/Example_Code/Main.o b/src/Example_Code/Main.o
deleted file mode 100644
index 792a895..0000000
Binary files a/src/Example_Code/Main.o and /dev/null differ
diff --git a/src/Example_Code/example_app.c b/src/Example_Code/example_app.c
index d1a6879..13ca0c8 100644
--- a/src/Example_Code/example_app.c
+++ b/src/Example_Code/example_app.c
@@ -91,7 +91,7 @@ static const unsigned char logo16_glcd_bmp[] =
 FILE *fp;
 char content_buff[BUFMAX];
 char buf[BUFMAX];
-
+int display_offset =7;
 /* draw many lines */
 void testdrawline() 
 {
@@ -407,122 +407,196 @@ void deeplyembedded_credits()
 }
 
 
-void testdate(int standalone)
+void testdate(int mode, int y)
 {
     time_t rawtime;
     time_t curtime;
     uint8_t timebuff[TIMESIZE];
     curtime = time(NULL);
     time(&rawtime);
-    if(standalone) 
+    switch (mode) 
     {
-    	/*
-        strftime(timebuff,80,"%Y-%m-%d",localtime(&rawtime));
-        sprintf(buf,"%s",timebuff);
-        setCursor((127-strlen(buf)*11)/2-2,0);
-        print_strln(buf);
-        strftime(timebuff,80,"%H:%M:%S",localtime(&rawtime));
-        sprintf(buf,"%s",timebuff);
-        setCursor((127-strlen(buf)*11)/2,16);
-        print_strln(buf);*/
-        setTextSize(3);
-        strftime(timebuff,80,"%H:%M",localtime(&rawtime));
-        sprintf(buf,"%s",timebuff);
-        setCursor((127-strlen(buf)*16)/2-4,4);
-        print_strln(buf);
+	case CENTER:
+		setTextSize(2);
+        	strftime(timebuff,80,"%H:%M",localtime(&rawtime));
+        	sprintf(buf,"%s",timebuff);
+        	setCursor((127-strlen(buf)*11)/2-4, y);
+	break;    	
+	case FULL:
+		setTextSize(1);
+        	strftime(timebuff,80,"%Y-%m-%d %H:%M:%S",localtime(&rawtime));
+        	sprintf(buf,"%s",timebuff);
+		setCursor(display_offset, y);
     }
-    else {
-        strftime(timebuff,80,"%Y-%m-%d %H:%M:%S",localtime(&rawtime));
-        sprintf(buf,"%s",timebuff);
-        print_strln(buf);
-    }
-
+    print_strln(buf);
 }
 
 
-void testlanip(int standalone)
+void testlanip(int mode, int y)
 {
+    setTextSize(1);
     if((fp=popen(IPPATH,"r"))!=NULL)
     {
         fscanf(fp,"%s",content_buff);
         fclose(fp);
         //ipbuff[strlen(ipbuff)-1]=32;
-        if(standalone) {sprintf(buf,"%s",content_buff); setTextSize(1); setCursor((127-strlen(buf)*6)/2, 12);}
-        else sprintf(buf,"IP:%s",content_buff);
+        switch(mode) 
+	{
+	    case CENTER:
+		setTextSize(1);
+		sprintf(buf,"%s",content_buff);  
+		setCursor((127-strlen(buf)*6)/2, y+4);
+		break;
+
+	    case FULL:
+		setTextSize(1);
+		sprintf(buf,"IP:%s",content_buff);
+		setCursor(display_offset, y);
+	}
         print_strln(buf);
     }
 
 }
 
 
-void testcputemp(int standalone)
+void testcputemp(int mode, int y)
 {
     if((fp=fopen(TEMPPATH,"r"))!=NULL)
     {
         fgets(content_buff,TEMPSIZE,fp);
         fclose(fp);
-        if(standalone) {sprintf(buf, "%.2f C",atoi(content_buff)/100.0); setCursor((127-strlen(buf)*11)/2, 8);}
-        else sprintf(buf,"CPU TEMP:%.2f C",atoi(content_buff)/100.0);
-        print_strln(buf);
+        switch (mode) 
+	{
+	    case CENTER:
+		setTextSize(2);
+		sprintf(buf, "%.2f",atoi(content_buff)/100.0); 
+		setCursor((127-(strlen(buf)+2)*11)/2-4, y);
+		print_str(buf);
+		oled_write(247);
+		oled_write(67);
+		break;
+	    case FULL:
+		setTextSize(1);
+		sprintf(buf,"CPU TEMP:%.2f",atoi(content_buff)/100.0); 
+		setCursor(display_offset, y);
+		print_str(buf); 
+		oled_write(247); 
+		oled_write(67);
+	}
+        
     }
 
 }
 
 
-void testcpufreq(int standalone)
+void testcpufreq(int mode, int y)
 {
     if((fp=popen(FREQPATH,"r")) != NULL)
     {
         fgets(content_buff,FREQSIZE,fp);
         fclose(fp);
-        if(standalone) {sprintf(buf,"%d MHz",atoi(content_buff)/1000); setCursor((127-strlen(buf)*11)/2, 8);}
-        else sprintf(buf,"CPU FREQ:%d MHz",atoi(content_buff)/1000);
+        switch(mode) 
+	{
+	    case CENTER:
+		setTextSize(2);
+		sprintf(buf,"%dMHz",atoi(content_buff)/1000); 
+		setCursor((127-strlen(buf)*11)/2-4, y);
+		break;
+            case FULL:
+		setTextSize(1);
+		sprintf(buf,"CPU FREQ:%dMHz",atoi(content_buff)/1000);
+		setCursor(display_offset, y);
+	}
         print_strln(buf);
     }
 
 }
 
-void testnetspeed(int standalone)
+void testnetspeed(int mode, int y)
 {
     int in,out;
     if((fp=popen(NETPATH,"r")) != NULL)
     {	
-	    
+	    	
         fscanf(fp,"%d %d", &in, &out);
         fclose(fp);
 	in = in*8;
         out = out*8;
-        if(standalone){
+        switch(mode)
+	{
+	    case SPLIT:	
         	setTextSize(2);
-	        setCursor(7,0);
-	        oled_write(24);
-	        if (in < 1000) sprintf(buf, "%db/s", in);
-	        else if (in > 1000000) sprintf(buf, "%.2fm/s", in/1000000.0);
-	        else sprintf(buf, "%.2fk/s", in/1000.0);
-            print_strln(buf);
-	        setCursor(7,16);
+	        if (in < 1000) sprintf(buf, "%03db", in);
+	        else if (in > 1000000) sprintf(buf, "%03dM", in/1000000);
+	        else sprintf(buf, "%03dK", in/1000);
+		setCursor((127-(strlen(buf)+1)*11)/2,0);
+		oled_write(24);
+            	print_str(buf);
+	        
+	        if (out < 1000) sprintf(buf, "%03db", out);
+	        else if (out > 1000000) sprintf(buf, "%03dM", out/1000000);
+	        else sprintf(buf, "%03dK", out/1000);
+		setCursor((127-(strlen(buf)+1)*11)/2,16);
 	        oled_write(25);
-	        if (out < 1000) sprintf(buf, "%db/s", out);
-	        else if (out > 1000000) sprintf(buf, "%.2fm/s", out/1000000.0);
-	        else sprintf(buf, "%.2fk/s", out/1000.0);
-            print_strln(buf);
-    	}
-    	else{
+            	print_str(buf);
+	    	break;
+	    case MERGE:
+	    	setTextSize(1);
+            	if (in < 1000) sprintf(buf, "%03db ", in);
+	    	else if (in > 1000000) sprintf(buf, "%03dM", in/1000000);
+	    	else sprintf(buf, "%03dK ", in/1000);
+		setCursor((127-(2*strlen(buf)-1)*6)/2-4, y+4);
+		oled_write(24);
+            	print_str(buf);  
+	    	if (out < 1000) sprintf(buf, "%03db", out);
+	    	else if (out > 1000000) sprintf(buf, "%03dM", out/1000000);
+	    	else sprintf(buf, "%03dK", out/1000);
+		oled_write(25);
+            	print_str(buf);  	
+		break;  
+	    case FULL:
 	    	setTextSize(1);
+		setCursor(display_offset, y);
 	    	oled_write(24);
-            if (in < 1000) sprintf(buf, "%db/s ", in);
-	    	else if (in > 1000000) sprintf(buf, "%.2fm/s ", in/1000000.0);
-	    	else sprintf(buf, "%.2fk/s ", in/1000.0);
-            print_str(buf);  
-            oled_write(25);
-	    	if (out < 1000) sprintf(buf, "%db/s", out);
-	    	else if (out > 1000000) sprintf(buf, "%.2fm/s", out/1000000.0);
-	    	else sprintf(buf, "%.2fk/s", out/1000.0);
-            print_str(buf);          
-		}	
+            	if (in < 1000) sprintf(buf, "%03db ", in);
+	    	else if (in > 1000000) sprintf(buf, "%03dM", in/1000000);
+	    	else sprintf(buf, "%03dK ", in/1000);
+            	print_str(buf);  
+            	oled_write(25);
+	    	if (out < 1000) sprintf(buf, "%03db", out);
+	    	else if (out > 1000000) sprintf(buf, "%03dM", out/1000000);
+	    	else sprintf(buf, "%03dK", out/1000);
+            	print_str(buf);          
+	}	
+    }
+
+}
+void testcpu(int y)
+{
+//freq
+    setTextSize(1);
+    setCursor(display_offset, y);
+    if((fp=popen(FREQPATH,"r")) != NULL)
+    {
+        fgets(content_buff,FREQSIZE,fp);
+        fclose(fp);
+        sprintf(buf,"CPU:%dMHz ", atoi(content_buff)/1000);
+        print_str(buf);
     }
 
+
+//temp
+    if((fp=fopen(TEMPPATH,"r"))!=NULL)
+    {
+        fgets(content_buff,TEMPSIZE,fp);
+        fclose(fp);
+    	sprintf(buf, "%.2f",atoi(content_buff)/100.0); 
+    	print_str(buf);
+    	oled_write(247);
+    	oled_write(67);
+    }
 }
+
 void testprintinfo()
 {
     setTextSize(1);
diff --git a/src/Example_Code/example_app.h b/src/Example_Code/example_app.h
index 5adb415..eb04358 100644
--- a/src/Example_Code/example_app.h
+++ b/src/Example_Code/example_app.h
@@ -1,3 +1,8 @@
+#define CENTER 0  //single item display
+#define SPLIT 1	//two items 
+#define MERGE 2
+#define FULL 3
+
 void testdrawline();
 void testdrawrect();
 void testfillrect();
@@ -15,10 +20,11 @@ void testdrawbitmap(const unsigned char *bitmap, unsigned char w, unsigned char
 void testdrawbitmap_eg();
 void deeplyembedded_credits();
 void testprintinfo();
-void testdate(int standalone);
-void testlanip(int standalone);
-void testcpufreq(int standalone);
-void testcputemp(int standalone);
-void testnetspeed(int standalone);
+void testdate(int mode, int y);
+void testlanip(int mode, int y);
+void testcpufreq(int mode, int y);
+void testcputemp(int mode, int y);
+void testnetspeed(int mode, int y);
+void testcpu(int y);
 
  
diff --git a/src/Example_Code/example_app.o b/src/Example_Code/example_app.o
deleted file mode 100644
index 1d469cd..0000000
Binary files a/src/Example_Code/example_app.o and /dev/null differ
diff --git a/src/SSD1306_OLED_Library/SSD1306_OLED.o b/src/SSD1306_OLED_Library/SSD1306_OLED.o
deleted file mode 100644
index dd33a09..0000000
Binary files a/src/SSD1306_OLED_Library/SSD1306_OLED.o and /dev/null differ