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-rw-r--r--libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino9
1 files changed, 8 insertions, 1 deletions
diff --git a/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino
index 5082054..09cbd43 100644
--- a/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino
+++ b/libraries/Ethernet/examples/DhcpChatServer/DhcpChatServer.ino
@@ -12,6 +12,7 @@
* Ethernet shield attached to pins 10, 11, 12, 13
created 21 May 2011
+ modified 9 Apr 2012
by Tom Igoe
Based on ChatServer example by David A. Mellis
@@ -34,8 +35,14 @@ EthernetServer server(23);
boolean gotAMessage = false; // whether or not you got a message from the client yet
void setup() {
- // open the serial port
+ // Open serial communications and wait for port to open:
Serial.begin(9600);
+ // this check is only needed on the Leonardo:
+ while (!Serial) {
+ ; // wait for serial port to connect. Needed for Leonardo only
+ }
+
+
// start the Ethernet connection:
Serial.println("Trying to get an IP address using DHCP");
if (Ethernet.begin(mac) == 0) {