Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen RevisionVorhergehende ÜberarbeitungNächste Überarbeitung | Vorhergehende Überarbeitung | ||
| project:arduino-kickstarter-105 [18.11.2011 23:52] – ebrnd | project:arduino-kickstarter-105 [20.11.2013 21:27] (aktuell) – paalsteek | ||
|---|---|---|---|
| Zeile 17: | Zeile 17: | ||
| const int buttonPin = 2; // the number of the pushbutton pin | const int buttonPin = 2; // the number of the pushbutton pin | ||
| const int ledPin = 13; // the number of the LED pin | const int ledPin = 13; // the number of the LED pin | ||
| + | | ||
| // Variables will change: | // Variables will change: | ||
| int ledState = HIGH; // the current state of the output pin | int ledState = HIGH; // the current state of the output pin | ||
| int buttonState; | int buttonState; | ||
| int lastButtonState = LOW; // the previous reading from the input pin | int lastButtonState = LOW; // the previous reading from the input pin | ||
| + | | ||
| // the following variables are long's because the time, measured in miliseconds, | // the following variables are long's because the time, measured in miliseconds, | ||
| // will quickly become a bigger number than can be stored in an int. | // will quickly become a bigger number than can be stored in an int. | ||
| long lastDebounceTime = 0; // the last time the output pin was toggled | long lastDebounceTime = 0; // the last time the output pin was toggled | ||
| long debounceDelay = 50; // the debounce time; increase if the output flickers | long debounceDelay = 50; // the debounce time; increase if the output flickers | ||
| + | | ||
| void setup() { | void setup() { | ||
| pinMode(buttonPin, | pinMode(buttonPin, | ||
| pinMode(ledPin, | pinMode(ledPin, | ||
| } | } | ||
| + | | ||
| void loop() { | void loop() { | ||
| // read the state of the switch into a local variable: | // read the state of the switch into a local variable: | ||
| int reading = digitalRead(buttonPin); | int reading = digitalRead(buttonPin); | ||
| + | | ||
| // check to see if you just pressed the button | // check to see if you just pressed the button | ||
| // (i.e. the input went from LOW to HIGH), | // (i.e. the input went from LOW to HIGH), | ||
| // long enough since the last press to ignore any noise: | // long enough since the last press to ignore any noise: | ||
| + | | ||
| // If the switch changed, due to noise or pressing: | // If the switch changed, due to noise or pressing: | ||
| if (reading != lastButtonState) { | if (reading != lastButtonState) { | ||
| Zeile 55: | Zeile 55: | ||
| // set the LED using the state of the button: | // set the LED using the state of the button: | ||
| digitalWrite(ledPin, | digitalWrite(ledPin, | ||
| + | | ||
| // save the reading. | // save the reading. | ||
| // it'll be the lastButtonState: | // it'll be the lastButtonState: | ||