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--- arduino:basic_interaction [2012/09/13 05:44] – [Switch controlled LED] mithat
+++ arduino:basic_interaction [2012/09/13 05:47] – mithat
@@ Line 9: / Line 9: @@
 Of the two, polling is probably easier to get started with. Following is a simple example of using polling.
-===== Switch controlled LED =====
+===== Switch-controlled LED =====
-This example uses polling to determine the state of a switch. If the switch is pressed, Arduino will turn an LED on. If it is not pressed, it will turn off.
+This example uses polling to determine the state of a switch. If the switch is pressed, Arduino will turn an LED on. If it is not pressed, it will turn the LED off.
 <file c LightSwitch.ino>
@@ Line 20: / Line 20: @@
 // connect the push button to digital pin 2
-int pushButton = 2;
+int pushButtonPin = 2;
 // connect the LED to pin 13
 int ledPin = 13;
 void setup() {
-  pinMode(pushButton, INPUT);   // make the pushbutton's pin an input
+  pinMode(pushButtonPin, INPUT);  // make the pushbutton's pin an input
-  pinMode(ledPin, OUTPUT);      // make LED's pin an output
+  pinMode(ledPin, OUTPUT);        // make LED's pin an output
 }
 void loop() {
-  int buttonState = digitalRead(pushButton);  // read the input pin
+  int buttonState = digitalRead(pushButtonPin);  // read the input pin
   // set LED state accordingly
@@ Line 53: / Line 53: @@
 // connect the push button to digital pin 2
-int pushButton = 2;
+int pushButtonPin = 2;
 // connect the LED to pin 13
 int ledPin = 13;
 void setup() {
-  pinMode(pushButton, INPUT);   // make the pushbutton's pin an input
+  pinMode(pushButtonPin, INPUT);  // make the pushbutton's pin an input
-  pinMode(ledPin, OUTPUT);      // make LED's pin an output
+  pinMode(ledPin, OUTPUT);        // make LED's pin an output
 }
 void loop() {
-  int buttonState = digitalRead(pushButton);  // read the input pin
+  int buttonState = digitalRead(pushButtonPin);  // read the input pin
   digitalWrite(ledPin, buttonState);          // turn the LED on or off
   //delay(1);        // delay in between reads for stability (?)
@@ Line 78: / Line 78: @@
 // connect the push button to digital pin 2
-int pushButton = 2;
+int pushButtonPin = 2;
 // connect the LED to pin 13
 int ledPin = 13;
 void setup() {
-  pinMode(pushButton, INPUT);   // make the pushbutton's pin an input
+  pinMode(pushButtonPin, INPUT);  // make the pushbutton's pin an input
-  pinMode(ledPin, OUTPUT);      // make LED's pin an output
+  pinMode(ledPin, OUTPUT);        // make LED's pin an output
 }
 void loop() {
-  digitalWrite(ledPin, digitalRead(pushButton));  // read the input pin and turn the LED on or off
+  digitalWrite(ledPin, digitalRead(pushButtonPin));  // read the input pin and turn the LED on or off
   //delay(1);        // delay in between reads for stability (?)
 }
 </file>