Differences

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--- arduino:arduino_crash_course:program_structure [2013/07/07 22:32] – mithat
+++ arduino:arduino_crash_course:program_structure [2017/12/06 01:01] (current) – mithat
@@ Line 13: / Line 13: @@
 void loop() {
-  // Stuff in here gets run over and over and over again (until you turn the power off).
+  // Stuff in here gets run over and over and over again
+  // (until you turn the power off).
 }
 </file>
-Whatever you write in the body of the ''setup'' function will happen only once---when the program starts (e.g. after you power up the Arduino, press the reset button, or load a new program). Whatever you write in the body of the ''loop'' function will happen over and over as fast as possible until you halt the program (e.g., by removing the power, pushing the reset button, or loading a new program).
+Whatever you write in the body of the ''setup'' function will happen only once---when the program starts (e.g. after you power up the Arduino, press the reset button, or load a new program). Whatever you write in the body of the ''loop'' function will happen over and over as fast as the Arduino can manage until you halt the program (e.g., by removing the power, pushing the reset button, or loading a new program).
 ===== Blink an LED =====
@@ Line 29: / Line 30: @@
 void setup() {
-  // make pin 13 an output
+  pinMode(13, OUTPUT);       // make pin 13 an output
-  pinMode(13, OUTPUT);
 }
@@ Line 53: / Line 53: @@
 void setup() {
-  // make ledPin an output
+  pinMode(ledPin, OUTPUT);      // make ledPin an output
-  pinMode(ledPin, OUTPUT);
 }
@@ Line 77: / Line 76: @@
 // use variable ledPin to store the pin number that drives the LED
 int ledPin = 13;
 // define the LED's on and off times in milliseconds
 int onTime = 1000;
@@ Line 82: / Line 82: @@
 void setup() {
-  // make ledPin an output
+  pinMode(ledPin, OUTPUT);      // make ledPin an output
-  pinMode(ledPin, OUTPUT);
 }