Abend,
ich habe den Code von hier:
http://www.lauridmeyer.com/2012/04/simple-arduino-tcp-client-using-the-ethernetshield-dhcp-and-a-java-server/
Es soll die Nachricht "Hello Server" an Server gesendet werden,leider ist da ein Problem mit dem DHCP 
Ich habe die IP und Port an meinen Server angepasst,jedoch bekomme ich nichteinmal eine IP zugewiesen.
Was ist an dem code falsch?
#include <SPI.h>
#include <Ethernet.h>
// Enter a MAC address for your controller below.
// Newer Ethernet shields have a MAC address printed on a sticker on the shield
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress serverIP(192,168,178,22); // IP Adress to our Server
int serverPort=54711;
// Initialize the Ethernet client library
// with the IP address and port of the server
// that you want to connect to
EthernetClient client;
void setup() {
// start the serial for debugging
Serial.begin(9600);
// start the Ethernet connection:
if (Ethernet.begin(mac) == 0) {
Serial.println("Failed to configure Ethernet using DHCP");
// no point in carrying on, so do nothing forevermore:
for(;;)
;
}
// give the Ethernet shield a second to initialize:
delay(1000);
Serial.println("connecting to Server ...");
// if you get a connection to the Server
if (client.connect(serverIP, serverPort)) {
Serial.println("connected");//report it to the Serial
String msg="Hello Server";//Message to be sent
Serial.println("sending Message:"+msg);//log to serial
client.println(msg);//send the message
}
else {
// if you didn't get a connection to the server:
Serial.println("connection failed");
}
}
void loop()
{
// if there are incoming bytes available
// from the server, read them and print them:
if (client.available()) {
char c = client.read();
Serial.print(c);
}
// if the server's disconnected, stop the client:
if (!client.connected()) {
Serial.println();//report it to the serial
Serial.println("disconnected");
client.stop();
// do nothing forevermore:
for(;;)
;
}
}
mfg.
Hasutechno
