Diff: KeyPad.h

Revision:

0:34c3354147cf

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/KeyPad.h	Thu Mar 12 17:11:01 2015 +0000
@@ -0,0 +1,60 @@
+#ifndef MBED_KEYPAD_H
+#define MBED_KEYPAD_H
+
+#include "mbed.h"
+#include <vector>
+#include <algorithm>
+#include <time.h>
+
+//Keypad class.  A 4x3 keypad class.  Documentation is available on wiki @ ___________
+//Usage:  Instantiate object, and use getkey method to retrieve keys pressed.  Might want to play around with switchrate to get better responsiveness (decides how fast we switch powering columns)
+//Important note:  Can only reliably detect a keypress in a single row at any given time, although multiple key detection in different rows is supported (eg 1 and 4 is detected simulataneously, 1 and 3 will just detect one of those)
+
+/*  Keypad      Representations
+    1 2 3       1   2  3 
+    4 5 6   ->  4   5  6 
+    7 8 9       7   8  9
+    * 0 #       10  11 12
+    
+*/
+class KeyPad2{
+    public:
+      
+        KeyPad2(PinName pin3, PinName pin1 ,PinName pin5 ,PinName pin2, PinName pin7,PinName pin6, PinName pin4);
+        
+        void setswitchrate(double switchrate);
+        
+        // sets function to be called when any button is pressed 
+        // function should take in one parameter which will represent the button pressed (int)
+        void setinterrupthandler(const void* func);     
+        
+        ~KeyPad2();
+        
+        
+        // takes roughly 3x switchrate + processing time
+        std::vector<int> getkey();
+        
+    private:
+    
+        // the time in milliseconds which each power will be powered for before switching to the next 
+        // default = 10 milliseconds           
+        double switchrate;   
+       
+          
+        DigitalOut* columnoneout;      // pin 3 on keypad 
+        DigitalOut* columntwoout;      // pin 1 on keypad
+        DigitalOut* columnthreeout;    // pin 5 on keypad
+
+    
+        DigitalIn* rowonein;           // pin 2 on keypad 
+        DigitalIn* rowtwoin;           // pin 7 on keypad
+        DigitalIn* rowthreein;         // pin 6 on keypad
+        DigitalIn* rowfourin;          // pin 4 on keypard  
+        
+       
+        
+        
+        
+    
+};
+#endif
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