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_complex.cpp
- Committer:
- kenjiArai
- Date:
- 2020-04-13
- Revision:
- 3:0c888cad9376
- Parent:
- 2:aa6fdecebf2b
- Child:
- 4:0564f82dd0ef
File content as of revision 3:0c888cad9376:
/* * 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: April 13th, 2020 */ // Pre-selection -------------------------------------------------------------- #include "select_example.h" //#define COMPLEX #ifdef COMPLEX // Include -------------------------------------------------------------------- #include "mbed.h" #include "Keypad.h" // Definition ----------------------------------------------------------------- #define A_SW 24 // see key_table[25] = A #define B_SW 3 // see key_table[3] = B #define C_SW 8 // see key_table[8] = C // Object --------------------------------------------------------------------- DigitalOut my_led(D13); //DigitalOut my_led(LED1); DigitalOut led0(A0); DigitalOut led1(A1); DigitalOut led2(A2); Serial pc(USBTX,USBRX); // X Y Z W V A B C D E OUT(XYZWV), IN(ABCDE) Keypad key(D11, D10, D9, D8, D7, D6, D5, D4, D3, D2); // RAM ------------------------------------------------------------------------ // ROM / Constant data -------------------------------------------------------- // key_table[0]=? is not used! // 1 2 3 4 5 const char key_table[] = {NUL, '*', 'G', 'B', '6', '1', // 1 '/', 'H', 'C', '7', '2', // 2 CR, '-', 'D', '8', '3', // 3 SPC, '+', 'E', '9', '4', // 4 BS, '=', 'F', 'A', '5', // 5 NUL }; // Function prototypes -------------------------------------------------------- //------------------------------------------------------------------------------ // Control Program //------------------------------------------------------------------------------ int main() { uint32_t key_num; uint32_t counter = 0; pc.printf("Start Key-Pad test 5x5 keys and/or state hold switch\r\n"); while(true) { while ((key_num = key.read()) != 0) { pc.printf("%2u:[%2d] %c\r\n", counter++, key_num, key_table[key_num]); } if (key.read_state(A_SW) == true) { led0 = 1; } else { led0 = 0; } if (key.read_state(B_SW) == true) { led1 = 1; } else { led1 = 0; } if (key.read_state(C_SW) == true) { led2 = 1; } else { led2 = 0; } wait_us(100000); } } #endif // #ifdef COMPLEX