test program for keypad(Extended not only 3x4 but 4x4,4x5 and 5x5 keys)
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see /users/kenjiArai/notebook/keypadkey-matrix--control/
Diff: key_complex.cpp
- Revision:
- 2:aa6fdecebf2b
- Child:
- 3:0c888cad9376
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/key_complex.cpp Mon Apr 06 04:57:04 2020 +0000 @@ -0,0 +1,84 @@ +/* + * 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 6th, 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(D6, D5, D4, D3, D2, D11, D10, D9, D8, D7); + +// 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\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 \ No newline at end of file