diff --git a/blink/src/main.cpp b/blink/src/main.cpp
index e99d8b0..36953be 100644
--- a/blink/src/main.cpp
+++ b/blink/src/main.cpp
@@ -10,6 +10,8 @@ void setup()
 {
   // initialize LED digital pin as an output.
   pinMode(LED_BUILTIN, OUTPUT);
+  Serial.begin(9600);
+  Serial.println("Hello World");
 }
 
 void loop()
@@ -17,9 +19,9 @@ void loop()
   // turn the LED on (HIGH is the voltage level)
   digitalWrite(LED_BUILTIN, HIGH);
   // wait for a second
-  delay(1000);
+  delay(100);
   // turn the LED off by making the voltage LOW
   digitalWrite(LED_BUILTIN, LOW);
    // wait for a second
-  delay(1000);
+  delay(100);
 }