Kenji Arai / Mbed 2 deprecated Keypad_input_OS2

Keypad program runs on OS2. Extended not only 3x4 but 4x4,4x5 and 5x5 keys.

Dependencies:   mbed Keypad

see /users/kenjiArai/notebook/keypadkey-matrix--control/

Diff: key_5x5.cpp

Revision:
3:8a7b6370956f
Parent:
2:d0ae519c229c
--- a/key_5x5.cpp	Mon Apr 06 04:59:45 2020 +0000
+++ b/key_5x5.cpp	Mon Apr 13 02:07:27 2020 +0000
@@ -5,7 +5,7 @@
  *  http://www7b.biglobe.ne.jp/~kenjia/
  *  https://os.mbed.com/users/kenjiArai/
  *      Created:    April      5th, 2020
- *      Revised:    April      6th, 2020
+ *      Revised:    April     13th, 2020
  */
 
 //  Pre-selection --------------------------------------------------------------
@@ -47,7 +47,7 @@
     uint32_t key_num;
     uint32_t counter = 0;
 
-    pc.printf("Start Key-Pad test\r\n");
+    pc.printf("Start Key-Pad test 5x5 keys\r\n");
     while(true) {
         while ((key_num = key.read()) != 0) {
             pc.printf("%2u:[%2d] %c\r\n",