Merge pull request #94 from per1234/builtin-led-behavior

Adjust comments to avoid assumption of on-board LED circuit configuration

Author: per1234

examples/01.Basics/Blink/Blink.ino

@@ -30,8 +30,8 @@ void setup() {
 
 // the loop function runs over and over again forever
 void loop() {
-  digitalWrite(LED_BUILTIN, HIGH);  // turn the LED on (HIGH is the voltage level)
+  digitalWrite(LED_BUILTIN, HIGH);  // change state of the LED by setting the pin to the HIGH voltage level
   delay(1000);                      // wait for a second
-  digitalWrite(LED_BUILTIN, LOW);   // turn the LED off by making the voltage LOW
+  digitalWrite(LED_BUILTIN, LOW);   // change state of the LED by setting the pin to the LOW voltage level
   delay(1000);                      // wait for a second
 }