Diff: SimpleButtonDecoder.h

Revision:

2:ae7a31a3c618

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SimpleButtonDecoder.h	Fri Aug 30 01:37:49 2013 +0000
@@ -0,0 +1,55 @@
+#ifndef SIMPLEBUTTONDECODER_H
+#define SIMPLEBUTTONDECODER_H
+
+#include "mbed.h"
+#include "AnalogInFiltered.h"
+
+/**
+ButtonDecoder.
+I was planning to make a r2R ladder network but I couldn't find any very accurate resitors here in Ecuador (no Señor, no tengo ... sigh)
+so I bought some 5% resitors but they didn'0t work well enough. So this decoder sinply decoder the end value and this
+it means only one button at a timn can be detected reliable.
+*/
+class SimpleButtonDecoder {
+    private:
+        AnalogInFiltered   *_analogIn;
+        int _value;
+        int _fuzzyFactor;
+        bool _isChanged;
+        short _deBounceRuns;
+        short _debounceCount;
+        
+        bool _pulseUp;
+        bool _pulseDown;
+        bool _status;
+    public:   
+        /**
+        filter : Failter chain
+        pin : Analog input to read
+        */
+        SimpleButtonDecoder(AnalogInFiltered *_analogIn, int value, short deBounceRuns);
+        ~SimpleButtonDecoder();
+        
+        // Process the buttons status information
+        // Call this function for the button to updates it's state
+        void process();
+        
+        // Returns the current button status
+        // This state will be updated after each 'process' call
+        bool getStatus();
+        
+        // Test if the input value is changed based on a offset
+        // This state will be updated after each 'process' call
+        bool getIsChanged();
+        
+        // Return's TRUE if the button was pressed
+        // This state will be updated after each 'process' call
+        bool getIsPressed();
+        
+        // Returns TRUE if the button was just released, 
+        // This state will be updated after each 'process' call
+        bool getIsReleased();
+
+};
+
+#endif
\ No newline at end of file