Changed duration() to currentDuration() and added examples

examples/more/bounce_current_duration/bounce_current_duration.ino

@@ -0,0 +1,67 @@
+
+/*
+  DESCRIPTION
+  ====================
+  Simple example of the Bounce library that switches on a LED when
+  the decounced input is held for more than 1000 milliseconds.
+
+  Set BOUNCE_PIN to the pin attached to the input (a button for example).
+  Set LED_PIN to the pin attached to a LED.
+
+*/
+
+// WE WILL attach() THE Bounce INSTANCE TO THE FOLLOWING PIN IN setup()
+#define BOUNCE_PIN 2
+
+// DEFINE THE PIN FOR THE LED :
+// 1) SOME BOARDS HAVE A DEFAULT LED (LED_BUILTIN)
+#define LED_PIN LED_BUILTIN
+// 2) OTHERWISE SET YOUR OWN PIN
+// #define LED_PIN 13
+
+// Include the Bounce2 library found here :
+// https://github.com/thomasfredericks/Bounce2
+#include <Bounce2.h>
+
+
+// INSTANTIATE A Bounce OBJECT.
+Bounce bounce = Bounce();
+ 
+// SET A VARIABLE TO STORE THE LED STATE
+int ledState = LOW;
+
+void setup() {
+
+  // BOUNCE SETUP
+
+  // SELECT ONE OF THE FOLLOWING :
+  // 1) IF YOUR INPUT HAS AN INTERNAL PULL-UP
+  bounce.attach( BOUNCE_PIN ,  INPUT_PULLUP ); // USE INTERNAL PULL-UP
+  // 2) IF YOUR INPUT USES AN EXTERNAL PULL-UP
+  //bounce.attach( BOUNCE_PIN, INPUT ); // USE EXTERNAL PULL-UP
+
+  // DEBOUNCE INTERVAL IN MILLISECONDS
+  bounce.interval(5); // interval in ms
+
+  // LED SETUP
+  pinMode(LED_PIN, OUTPUT);
+  digitalWrite(LED_PIN, ledState);
+
+}
+
+void loop() {
+  // Update the Bounce instance (YOU MUST DO THIS EVERY LOOP)
+  bounce.update();
+
+  // GET THE STATE WITH <Bounce.read()>
+  int debouncedState = bounce.read();
+
+  // <Bounce>.duration() RETURNS THE TIME IN MILLISECONDS THE CURRENT STATE HAS BEEN HELD.
+  // SO WE CHECK IF THE STATE IS LOW AND IF IT HAS BEEN LOW FOR MORE THAN 1 SECOND.
+  if ( debouncedState == LOW && bounce.currentDuration() > 1000 ) {
+    digitalWrite(LED_PIN,HIGH); // TURN THE LED ON
+  } else {
+    digitalWrite(LED_PIN,LOW); // TURN THE LED OFF
+  }
+    
+}