added hold method

examples/demo/demo.ino

@@ -50,6 +50,14 @@ void loop() {
 				digitalWrite(LED2, led2State);
 			}
 			break;
+		case 4:
+			if (button2.hold()) {
+				led2State = true;
+			} else {
+				led2State = false;
+			}
+			digitalWrite(LED2, led2State);
+			break;
 		default:
 			mode = 0;
 			break;

keywords.txt

@@ -17,6 +17,7 @@ press   KEYWORD2
 repeat  KEYWORD2
 longPress   KEYWORD2
 release  KEYWORD2
+hold    KEYWORD2
 
 #######################################
 # (KEYWORD3)

library.properties

@@ -1,5 +1,5 @@
 name=debounced button
-version=1.1.0
+version=1.2.0
 author=serek4
 maintainer=serek4
 sentence=buttons library with debounce

src/debouncedButton.cpp

@@ -104,3 +104,29 @@ boolean button::relese() {
 	}
 	return _press;
 }
+
+boolean button::hold(int _pressDelay) {
+	_press = false;
+	if (!_buttonPressed && digitalRead(_pin) == LOW) {    // press
+		_buttonPressed = _debounceTimer;
+		_pressTime = millis();
+#if DEBUG
+		Serial.print(_pin);
+		Serial.print(" hold start: ");
+		Serial.println(_pressTime);
+#endif
+	} else if (_buttonPressed && millis() - _pressTime > _pressDelay && digitalRead(_pin) == LOW) {    // hold
+		_press = true;
+	} else if (_buttonPressed && digitalRead(_pin) == HIGH) {    // debounce
+		_buttonPressed++;
+#if DEBUG
+		if (!_buttonPressed) {
+			_releaseTime = millis();
+			Serial.print(_pin);
+			Serial.print(" hold stop: ");
+			Serial.println(_releaseTime);
+		}
+#endif
+	}
+	return _press;
+}

src/debouncedButton.h

@@ -42,6 +42,11 @@ class button {
 	 * button activated on relese
 	 */
 	boolean relese();
+	/**
+	 * button active as long as it is pressed
+	 * @param _pressDelay: hold time [in milliseconds], default = 0
+	 */
+	boolean hold(int _pressDelay = 0);
 
   private:
 	int _pin;