test program for keypad(Extended not only 3x4 but 4x4,4x5 and 5x5 keys)

Dependencies:   Keypad

Fork of study_step0 by Team_PjL

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

Revision:
5:53fb9eed6b67
Parent:
4:0564f82dd0ef
--- a/check_revision.cpp	Sat Aug 01 07:49:39 2020 +0000
+++ b/check_revision.cpp	Thu Feb 18 08:15:37 2021 +0000
@@ -1,25 +1,22 @@
 /*
  * Check Mbed revision
  *
- * Copyright (c) 2020 Kenji Arai / JH1PJL
+ * Copyright (c) 2020,'21 Kenji Arai / JH1PJL
  *  http://www7b.biglobe.ne.jp/~kenjia/
  *  https://os.mbed.com/users/kenjiArai/
- *      Revised:    Feburary  16th, 2020
- *      Revised:    August     1st, 2020
+ *      Revised:    February  16th, 2020
+ *      Revised:    February  18th, 2021
  */
 
 #include "mbed.h"
  
-//    RUN ONLY ON mbed-os-6.2.0
-//      https://github.com/ARMmbed/mbed-os/releases/tag/mbed-os-6.2.0
+//    RUN ONLY ON mbed-os-6.6.0
+//      https://github.com/ARMmbed/mbed-os/releases/tag/mbed-os-6.6.0
 #if (MBED_MAJOR_VERSION == 6) &&\
-    (MBED_MINOR_VERSION == 2) &&\
+    (MBED_MINOR_VERSION == 6) &&\
     (MBED_PATCH_VERSION == 0)
-#elif (MBED_MAJOR_VERSION == 2) &&\
-      (MBED_MINOR_VERSION == 0) &&\
-      (MBED_PATCH_VERSION == 165)
 #else
-//#     error "Please use mbed-os-6.2.0-alpha-3 or mbed2-165"
+#   warning "tested on mbed-os-6.6.0"
 #endif
 
 void print_revision(void)