View difference between Paste ID: 5LjYptW8 and kMnKZwKN

 /*
 	Portions of this code written by Gregory Fenton
 	http://labby.co.uk/2012/08/arduino-visual-icmp-ping-server-monitor-icmp-echo-request/
-#include <EthernetUdp.h>         // UDP library from: bjoern@cs.stanford.edu 12/30/2008
+*/
 
 #include <SPI.h>
 #include <Ethernet.h>
 #include <EthernetUdp.h> // UDP library from: bjoern@cs.stanford.edu 12/30/2008
 #include <ICMPPing.h>
 
 byte mac[] = {0xDE, 0xAD, 0xBE, 0xDD, 0xFE, 0xED}; // mac address for ethernet shield
 byte ip[] = {192,168,0,177}; // ip address for ethernet shield
 byte pingAddr[] = {192,168,0,10}; // ip address to ping
 
 bool pingStatus = false;
 
 SOCKET pingSocket = 0;
 
 char buffer [256];
 
-  #define ledPing 2
+
-  #define ledOk 3
+
-  #define ledFail 4
+
 #define ledOut 1
 
-unsigned int localPort = 8888;      // local port to listen on
+
 	#define ledPing 2
 	#define ledOk 3
-char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
+	#define ledFail 4
-char  ReplyBuffer[] = "acknowledged";       // a string to send back
+
 
 //udp stuff
 unsigned int localPort = 8888;			// local port to listen on
 
 // buffers for receiving and sending data
 // greg: unused in this code?
-int val=0;
+//char packetBuffer[UDP_TX_PACKET_MAX_SIZE]; //buffer to hold incoming packet,
 //char ReplyBuffer[] = "acknowledged";			 // a string to send back
 
 // An EthernetUDP instance to let us send and receive packets over UDP
 EthernetUDP Udp;
 //end udp stuff
 
 // greg: unused in this code?
 // int val=0;
-  // start serial port:
+
-  Serial.begin(9600);
+
-  Serial.println("Starting ethernet connection");
+
 void setup()
-  //start Ethernet
+
- // if (Ethernet.begin(mac) == 0) {
+	#ifdef serialOut
 		// start serial port:
-   // Serial.println("Failed to configure Ethernet using DHCP");
+		Serial.begin(9600);
 		Serial.println("Starting ethernet connection");
-    // DHCP failed, so use a fixed IP address:
+	#endif
-    Ethernet.begin(mac, ip);
+	//start Ethernet
 	// if (Ethernet.begin(mac) == 0) {
 	#ifdef serialOut
 		// Serial.println("Failed to configure Ethernet using DHCP");
-
+	#endif
 	// DHCP failed, so use a fixed IP address:
 	Ethernet.begin(mac, ip);
 	// start udp connection
 	Udp.begin(localPort);
-void startPing()
+	// }
 }
-  Serial.println("Ping begin");
+
 #ifdef serialOut
 	void startPing()
-void endPing()
+	{
 		Serial.println("Ping begin");
-  Serial.println("Ping fin");
+	}
 
 	void endPing()
-void pingSuccess()
+	{
 		Serial.println("Ping fin");
-Serial.println("Ping great success");
+	}
- Serial.println("Living Room - Sofa light ON");
+
-    Udp.beginPacket("192.168.0.7", 9760);
+
-    Udp.write("678,!R2D1F1|");
+
-    Udp.endPacket();
+	void pingSuccess()
-    delay(5000);
+	{
-    int val = random(300);
+		#ifdef serialOut
 			Serial.println("Ping great success");
 		#endif
-void pingFail()
+		if(pingStatus == false) // we don't need to constantly turn the light on
 		{
-Serial.println("Ping fail");
+			#ifdef serialOut
- Serial.println("Living Room - Sofa light OFF");
+				Serial.println("Living Room - Sofa light ON");
-    Udp.beginPacket("192.168.0.7", 9760);
+			#endif
-    Udp.write("678,!R2D1F0|");
+			Udp.beginPacket("192.168.0.7", 9760);
-    Udp.endPacket();
+			Udp.write("678,!R2D1F1|");
-delay(5000);
+			Udp.endPacket();
-int val = random(300);
+			// greg: unused in this code?
 			// val = random(300);
 			pingStatus = true;
 		}
 	}
 
 	void pingFail()
-  bool pingRet; // pingRet stores the ping() success (true/false)
+	{
 		#ifdef serialOut
 			Serial.println("Ping fail");
-  startPing();
+		#endif
 		if(pingStatus == true) // we don't need to constantly turn the light off
-  ICMPPing ping(pingSocket);
+		{
-  pingRet = ping(4, pingAddr, buffer);
+			#ifdef serialOut
 				Serial.println("Living Room - Sofa light OFF");
-  delay(250);
+			#endif
-  endPing();
+			Udp.beginPacket("192.168.0.7", 9760);
 			Udp.write("678,!R2D1F0|");
 			Udp.endPacket();
- Serial.println(buffer);
+			// greg: unused in this code?
 			// val = random(300);
-#ifdef seriallOut
+			pingStatus = false;
-  Serial.println(buffer);
+		}
 	}
 #endif
-  if(pingRet) // Failure
+
-    pingSuccess();
+
-  else
+
-    pingFail();
+	bool pingRet; // pingRet stores the ping() success (true/false)
 
-  delay(delayMS);
+	#ifdef ledOut
 		startPing();
 	#endif
 	ICMPPing ping(pingSocket);
 	pingRet = ping(4, pingAddr, buffer);
 	#ifdef ledOut
 		delay(250);
 		endPing();
 	#endif
 
 	#ifdef seriallOut
 		Serial.println(buffer);
 	#endif
 	#ifdef ledOut
 		if(pingRet) // Failure
 			pingSuccess();
 		else
 			pingFail();
 	#endif
 	delay(delayMS);
 }