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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>I would guess that the issue is with the IP address.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Here is some code fragment that I use. Note that I do not set the IP address.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>This is a cut-and-paste-and-slim-down job, so it may not even compile, but you get the idea.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>---> Paul<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>#include <SPI.h><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>#include <Ethernet.h><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED }; //physical mac address<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>EthernetServer server(80); //server port<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>String clientstring;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>const uint8_t LED_PIN = 13;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>int led = LOW;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>setup()<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>{<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> pinMode(LED_PIN, OUTPUT);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> led = HIGH;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> digitalWrite(LED_PIN, led);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> delay(200);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> led = LOW;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> digitalWrite(LED_PIN, led);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> // Start up the Serial port<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.begin(9600);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> while (!Serial);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F("Initialized"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Ethernet.begin(mac /*, ip, gateway, subnet*/);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> server.begin();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> IPAddress myIP = Ethernet.EthernetClass::localIP();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(F("IP address: "));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(myIP[0]);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(F("."));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(myIP[1]);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(F("."));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(myIP[2]);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(F("."));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(myIP[3]);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>}<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>loop()<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>{<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> // Create a client connection<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> EthernetClient client = server.available();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (client) {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F("Created client"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> while (client.connected()) {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (client.available()) {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> char c = client.read();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> //read char by char HTTP request<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (clientstring.length() < 100) {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(F("Got - "));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.print(c);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F(" !"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> //store characters to string<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (c != 0)<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> clientstring += c; <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> } else {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F("String reset at 100"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> clientstring = ""; // reset<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> //if HTTP request has ended<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (c == '\n') {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> ///////////////<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(clientstring); //print to serial monitor for debuging<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (clientstring.indexOf("lightoff") >0)//checks for off<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> led = LOW;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> digitalWrite(LED_PIN, led); // set pin 3 low<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F("LED Off"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (clientstring.indexOf("lighton") >0)//checks for on<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> led = HIGH;<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> digitalWrite(LED_PIN, led); // set pin 3 high<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> Serial.println(F("LED On"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> // Return the formatted HTML page<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("HTTP/1.1 200 OK"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("Content-Type: text/html"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<HTML>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<HEAD>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<TITLE>Test Page</TITLE>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("</HEAD>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<BODY>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<H1>Onboard LED</H1>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.print(F("LED - "));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> if (led==HIGH) {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.print("on");<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<br>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<a href=\"/?lightoff\"\">OFF</a>   "));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> } else {<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.print("off");<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<br>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<a href=\"/?lighton\"\">ON</a>   "));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("<br>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("</BODY>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.println(F("</HTML>"));<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> delay(10);<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> //stopping client<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> client.stop();<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> //clearing string for next read<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> clientstring = "";<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> }<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>}<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> TriEmbed [mailto:triembed-bounces@triembed.org] <b>On Behalf Of </b>Dwight Morgan<br><b>Sent:</b> Monday, December 01, 2014 10:48 PM<br><b>To:</b> triembed@triembed.org<br><b>Subject:</b> [TriEmbed] Arduino Topic for Dec 7 Meeting?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m a newbie and going through the Simon Monk book, “Programming Arduino Getting Started with Sketches”. I am stuck on chapter 10, “Arduino Ethernet Programming”. I have tried numerous things to get the Arduino to act as a server but it just won’t connect. I’m running Windows 7 on my PC and I have a Netgear router for my wireless router with 4 wired ports. I’ve plugged the RJ45 into the router and my PC and tried different IP addresses that are not taken by my router already but nothing works. I cut off the firewall once but that didn’t help. I replaced the Ethernet shield and the UNO but that didn’t help. I’m trying to run the simplest code as best I can tell which is the Monk example code 10-01 copied below for reference:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>// sketch 10-01 Simple Server Example<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>#include <SPI.h><o:p></o:p></p><p class=MsoNormal>#include <Ethernet.h><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>// MAC address just has to be unique. This should work<o:p></o:p></p><p class=MsoNormal>byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };<o:p></o:p></p><p class=MsoNormal>// The IP address will be dependent on your local network:<o:p></o:p></p><p class=MsoNormal>byte ip[] = { 192, 168, 1, 30 };<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>EthernetServer server(80);<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>void setup()<o:p></o:p></p><p class=MsoNormal>{<o:p></o:p></p><p class=MsoNormal> Ethernet.begin(mac, ip);<o:p></o:p></p><p class=MsoNormal> server.begin();<o:p></o:p></p><p class=MsoNormal> Serial.begin(9600);<o:p></o:p></p><p class=MsoNormal>}<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>void loop()<o:p></o:p></p><p class=MsoNormal>{<o:p></o:p></p><p class=MsoNormal> // listen for incoming clients<o:p></o:p></p><p class=MsoNormal> EthernetClient client = server.available();<o:p></o:p></p><p class=MsoNormal> if (client) <o:p></o:p></p><p class=MsoNormal> {<o:p></o:p></p><p class=MsoNormal> while (client.connected()) <o:p></o:p></p><p class=MsoNormal> {<o:p></o:p></p><p class=MsoNormal> // send a standard http response header<o:p></o:p></p><p class=MsoNormal> client.println("HTTP/1.1 200 OK");<o:p></o:p></p><p class=MsoNormal> client.println("Content-Type: text/html");<o:p></o:p></p><p class=MsoNormal> client.println();<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal> // send the body<o:p></o:p></p><p class=MsoNormal> client.println("<html><body>");<o:p></o:p></p><p class=MsoNormal> client.println("<h1>Arduino Server</h1>");<o:p></o:p></p><p class=MsoNormal> client.print("<p>A0="); <o:p></o:p></p><p class=MsoNormal> client.print(analogRead(0)); <o:p></o:p></p><p class=MsoNormal> client.println("</p>"); <o:p></o:p></p><p class=MsoNormal> client.print("<p>millis="); <o:p></o:p></p><p class=MsoNormal> client.print(millis()); <o:p></o:p></p><p class=MsoNormal> client.println("</p>"); <o:p></o:p></p><p class=MsoNormal> client.println("</body></html>");<o:p></o:p></p><p class=MsoNormal> client.stop();<o:p></o:p></p><p class=MsoNormal> }<o:p></o:p></p><p class=MsoNormal> delay(1);<o:p></o:p></p><p class=MsoNormal> }<o:p></o:p></p><p class=MsoNormal>}<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>One potential thing I have not covered is the power supply. I’m unplugging the USB as instructed in the book and plugging in a 9 Volt battery pack – all I have right now for power. I have a 9 Volt 1.5 Amp power supply on order to get here Friday. I’m not sure if that is a problem or not. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m running Arduino IDE 1.0.4. The board is Arduino UNO and the Ethernet shield is made by Seeed. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>If this is something someone with more experience could talk about at the meeting I definitely have an interest. I have looked online for solutions but nothing so far has worked. If this topic does not serve the group well, I understand, but maybe someone who has knowledge of this could just give me some directions to get me back on the right path. <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks! <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dwight<o:p></o:p></p></div></body></html>