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-rw-r--r--libraries/SD/examples/Datalogger/Datalogger.ino8
1 files changed, 7 insertions, 1 deletions
diff --git a/libraries/SD/examples/Datalogger/Datalogger.ino b/libraries/SD/examples/Datalogger/Datalogger.ino
index 73d81af..a7f85ee 100644
--- a/libraries/SD/examples/Datalogger/Datalogger.ino
+++ b/libraries/SD/examples/Datalogger/Datalogger.ino
@@ -13,7 +13,7 @@
** CS - pin 4
created 24 Nov 2010
- updated 2 Dec 2010
+ modified 9 Apr 2012
by Tom Igoe
This example code is in the public domain.
@@ -30,7 +30,13 @@ const int chipSelect = 4;
void setup()
{
+ // Open serial communications and wait for port to open:
Serial.begin(9600);
+ while (!Serial) {
+ ; // wait for serial port to connect. Needed for Leonardo only
+ }
+
+
Serial.print("Initializing SD card...");
// make sure that the default chip select pin is set to
// output, even if you don't use it: