src/Bounce2.cpp

@@ -13,6 +13,7 @@ Bounce::Bounce()
     , interval_millis(10)
     , state(0)
     , pin(0)
+    , analog(false)
 {}
 
 void Bounce::attach(int pin) {
@@ -28,6 +29,21 @@ void Bounce::attach(int pin) {
 #endif
 }
 
+void Bounce::attachAnalog(int pin, uint16_t r_threshold) {
+    this->pin = pin;
+    state = 0;
+    analog = true;
+    threshold = r_threshold;
+    if (readCurrentState()) {
+        setStateFlag(DEBOUNCED_STATE | UNSTABLE_STATE);
+    }
+#ifdef BOUNCE_LOCK_OUT
+    previous_millis = 0;
+#else
+    previous_millis = millis();
+#endif
+}
+
 void Bounce::attach(int pin, int mode){
     setPinMode(pin, mode);
     this->attach(pin);

src/Bounce2.h

@@ -97,7 +97,7 @@ class Bounce
     Attach to a pin for advanced users. Only attach the pin this way once you have previously set it up. Otherwise use attach(int pin, int mode).
     */
     void attach(int pin);
-    
+    void attachAnalog(int pin, uint16_t r_threshold);
 
     /**
     @brief  Sets the debounce interval in milliseconds.
@@ -177,9 +177,18 @@ class Bounce
     uint16_t interval_millis;
     uint8_t state;
     uint8_t pin;
+
+    bool analog;
+    int16_t threshold;
+
     unsigned long stateChangeLastTime;
     unsigned long durationOfPreviousState;
-    virtual bool readCurrentState() { return digitalRead(pin); }
+    virtual bool readCurrentState() {
+        if ( !analog ) {
+            return digitalRead(pin);
+        }
+        return ( analogRead(pin) > threshold );
+    }
     virtual void setPinMode(int pin, int mode) {
 #if defined(ARDUINO_STM_NUCLEO_F103RB) || defined(ARDUINO_GENERIC_STM32F103C)
         pinMode(pin, (WiringPinMode)mode);