test program for keypad(Extended not only 3x4 but 4x4,4x5 and 5x5 keys)
Fork of study_step0 by
see /users/kenjiArai/notebook/keypadkey-matrix--control/
Diff: key_4x4.cpp
- Revision:
- 3:0c888cad9376
- Parent:
- 2:aa6fdecebf2b
- Child:
- 4:0564f82dd0ef
--- a/key_4x4.cpp Mon Apr 06 04:57:04 2020 +0000 +++ b/key_4x4.cpp Mon Apr 13 02:07:09 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 -------------------------------------------------------------- @@ -22,8 +22,8 @@ // Object --------------------------------------------------------------------- DigitalOut my_led(LED1); Serial pc(USBTX,USBRX); -// X Y Z W A B C D OUT(XYZW), IN(ABCD) -Keypad key(D10, D9, D8, D7, D6, D5, D4, D3); +// X Y Z W A B C D OUT(XYZW), IN(ABCD) +Keypad key(D11, D10, D9, D8, D6, D5, D4, D3); // RAM ------------------------------------------------------------------------ @@ -46,7 +46,7 @@ uint32_t key_num; uint32_t counter = 0; - pc.printf("Start Key-Pad test\r\n"); + pc.printf("Start Key-Pad test 4x4 keys\r\n"); while(true) { while ((key_num = key.read()) != 0) { pc.printf("%2u:[%2d] %c\r\n",