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Diffstat (limited to 'libraries/Ethernet/examples/TwitterClient/TwitterClient.ino')
-rw-r--r--libraries/Ethernet/examples/TwitterClient/TwitterClient.ino8
1 files changed, 7 insertions, 1 deletions
diff --git a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
index a3b397d..3587d72 100644
--- a/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
+++ b/libraries/Ethernet/examples/TwitterClient/TwitterClient.ino
@@ -17,6 +17,7 @@
* Ethernet shield attached to pins 10, 11, 12, 13
created 21 May 2011
+ modified 9 Apr 2012
by Tom Igoe
This code is in the public domain.
@@ -51,8 +52,13 @@ void setup() {
currentLine.reserve(256);
tweet.reserve(150);
- // initialize serial:
+ // Open serial communications and wait for port to open:
Serial.begin(9600);
+ while (!Serial) {
+ ; // wait for serial port to connect. Needed for Leonardo only
+ }
+
+
// attempt a DHCP connection:
Serial.println("Attempting to get an IP address using DHCP:");
if (!Ethernet.begin(mac)) {