Diff: keypad.h

Revision:

14:d6592dac4365

Parent:

13:9a52b9d7e78c

Child:

15:78f9c379a2e1

--- a/keypad.h	Sat Sep 19 17:13:19 2015 +0000
+++ b/keypad.h	Sat Sep 19 18:15:01 2015 +0000
@@ -1,4 +1,4 @@
-/*mbed simple keypad library, using polling 
+/*mbed simple keypad library, using polling
 
 	 Copyright (c) 2015 Rune Langøy
 
@@ -27,56 +27,59 @@
 #include "DigitalIn.h"
 #include "BusOut.h"
 
-namespace mbed{
+namespace mbed
+{
 
 const char NO_KEY = '\0';
 #define KEY_RELEASED NO_KEY
-   
+
 const char keys[16] = {'1','2','3','A',
-                      '4','5','6','B',
-                      '7','8','9','C',
-                      '*','0','#','D'};
- /**
- * An simple polling-based interface to read a 4x4 keypad.
- *
- * The function getKey() reads  the index of the pressed key 
- * and returns the letter of the pressed key 
- *
- *  This work is a derivative of the works done by:
- *    Dimiter Kentri in 2010 https://developer.mbed.org/users/DimiterK/code/keypad/
- *  and
- *    Yoong Hor Meng in 2012 https://developer.mbed.org/users/yoonghm/code/keypad/
- *
- * Example:
- * @code
- * #include "mbed.h"
- * #include "keypad.h"
- *	  
- * Serial pc(USBTX, USBRX); 
- * Keypad keypad(D3,D4,D5,D6,D7,D8,D9,D10);
- * // Keypad keypad( PC_3,PC_2,PA_0,PA_1,PA_4,PB_0,PC_1,PC_0 ); // Tested on  Nucleo303RE card
- * 					
- * int main(void)
- * {
- *  keypad.enablePullUp();
- *  char key;
- *  pc.printf("Please touch a key on the keypad\r\n");
- *  while(1)
- *  { 
- *	key = keypad.getKey();	
- * 	if(key != KEY_RELEASED)
- *	{
- *	   pc.printf("%c\r\n",key);
- *	   wait(0.2);
- *	 }
- *  }
- * }	
- * @endcode
+                       '4','5','6','B',
+                       '7','8','9','C',
+                       '*','0','#','D'
+                      };
+/**
+* An simple polling-based interface to read a 4x4 keypad.
+*
+* The function getKey() reads  the index of the pressed key
+* and returns the letter of the pressed key
+*
+*  This work is a derivative of the works done by:
+*    Dimiter Kentri in 2010 https://developer.mbed.org/users/DimiterK/code/keypad/
+*  and
+*    Yoong Hor Meng in 2012 https://developer.mbed.org/users/yoonghm/code/keypad/
+*
+* Example:
+* @code
+* #include "mbed.h"
+* #include "keypad.h"
+*
+* Serial pc(USBTX, USBRX);
+* Keypad keypad(D3,D4,D5,D6,D7,D8,D9,D10);
+* // Keypad keypad( PC_3,PC_2,PA_0,PA_1,PA_4,PB_0,PC_1,PC_0 ); // Tested on  Nucleo303RE card
+*
+* int main(void)
+* {
+*  keypad.enablePullUp();
+*  char key;
+*  pc.printf("Please touch a key on the keypad\r\n");
+*  while(1)
+*  {
+*	key = keypad.getKey();
+* 	if(key != KEY_RELEASED)
+*	{
+*	   pc.printf("%c\r\n",key);
+*	   wait(0.2);
+*	 }
+*  }
+* }
+* @endcode
 
- */
-                     
-class Keypad{    
-    public:
+*/
+
+class Keypad
+{
+public:
     /**  @brief Create a 4x4 (col, row) or 4x4 keypad interface\n
      *  <pre>
      *          | Col0 | Col1 | Col2 | Col3   \n
@@ -90,39 +93,39 @@
      *  @param col<0..3>     Row data lines
      *  @param row<0..3>     Column data lines
      */
-        Keypad(PinName col0, PinName col1, PinName col2, PinName col3, PinName row0,PinName row1, PinName row2, PinName row3);
-    
-       /** @brief  Returns the letter of the pressed key \n
-        *      if no walid key was pressed\n
-        *      the value -1 is returned\n
-        *          
-        *  @return char - The pressed character or -1 if no char was pressed
-        */
-        char getKey();
-        
-        /** @brief Detects if any key was pressed   
-        *          
-        *   @return bool - true is returned if any key is pressed
-        */
-        bool getKeyPressed();
-        /**  Enables internal PullUp resistors on the coloums pins 
-        *          
-        *  @return void
-        */
-        void enablePullUp();
+    Keypad(PinName col0, PinName col1, PinName col2, PinName col3, PinName row0,PinName row1, PinName row2, PinName row3);
+
+    /** @brief  Returns the letter of the pressed key \n
+     *      if no walid key was pressed\n
+     *      the value -1 is returned\n
+     *
+     *  @return char - The pressed character or -1 if no char was pressed
+     */
+    char getKey();
 
-    protected:
-        BusIn  _cols;    
-        BusOut _rows;
-         /** @brief return the index value \n
-        *      representating the pressed key \n 
-        *      if no walid key was pressed \n
-        *      the value -1 is returned
-        *          
-        *  @return int - The index
-        */
-        int getKeyIndex();
-       
+    /** @brief Detects if any key was pressed
+    *
+    *   @return bool - true is returned if any key is pressed
+    */
+    bool getKeyPressed();
+    /**  Enables internal PullUp resistors on the coloums pins
+    *
+    *  @return void
+    */
+    void enablePullUp();
+
+protected:
+    BusIn  _cols;
+    BusOut _rows;
+    /** @brief return the index value \n
+    *      representating the pressed key \n
+    *      if no walid key was pressed \n
+    *      the value -1 is returned
+    *
+    *  @return int - The index
+    */
+    int getKeyIndex();
+
 };
 
 }