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/
key_4x5.cpp
- Committer:
- kenjiArai
- Date:
- 2020-08-01
- Revision:
- 4:0564f82dd0ef
- Parent:
- 3:0c888cad9376
- Child:
- 5:53fb9eed6b67
File content as of revision 4:0564f82dd0ef:
/* * Mbed Application program * * Copyright (c) 2020 Kenji Arai / JH1PJL * http://www7b.biglobe.ne.jp/~kenjia/ * https://os.mbed.com/users/kenjiArai/ * Created: April 5th, 2020 * Revised: August 1st, 2020 */ // Pre-selection -------------------------------------------------------------- #include "select_example.h" //#define KEY4X5 #ifdef KEY4X5 // Include -------------------------------------------------------------------- #include "mbed.h" #include "Keypad.h" // Definition ----------------------------------------------------------------- // Object --------------------------------------------------------------------- DigitalOut my_led(LED1); // X Y Z W A B C D E OUT(XYZW), IN(ABCDE) Keypad key(D11, D10, D9, D8, D6, D5, D4, D3, D2); // RAM ------------------------------------------------------------------------ // ROM / Constant data -------------------------------------------------------- // X*A = *, X*B = D, X*C = 9, X*D = 5, X*E = 1 // Y*A = /, Y*B = E, Y*C = A, Y*D = 6, Y*E = 2 // Z*A = #, Z*B = F, Z*C = B, Z*D = 7, Z*E = 3 // W*A = +, W*B = G, W*C = C, W*D = 8, W*E = 4 // key_table[0]=? is not used! const char *const key_table = "?*D951/EA62#FB73+GC84"; // 12345678901234567890 // Function prototypes -------------------------------------------------------- //------------------------------------------------------------------------------ // Control Program //------------------------------------------------------------------------------ int main() { uint32_t key_num; uint32_t counter = 0; printf("Start Key-Pad test 4x5 keys\r\n"); while(true) { while ((key_num = key.read()) != 0) { printf("%2u:[%2d] %c\r\n", counter++, key_num, *(key_table + key_num)); } wait_us(100000); } } #endif // #ifdef KEY4X5