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_5x5.cpp
- Revision:
- 2:aa6fdecebf2b
- Child:
- 3:0c888cad9376
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/key_5x5.cpp Mon Apr 06 04:57:04 2020 +0000 @@ -0,0 +1,60 @@ +/* + * 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 KEY5X5 +#ifdef KEY5X5 + +// Include -------------------------------------------------------------------- +#include "mbed.h" +#include "Keypad.h" + +// Definition ----------------------------------------------------------------- + +// Object --------------------------------------------------------------------- +DigitalOut my_led(LED1); +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 -------------------------------------------------------- +// X*A = *, X*B = G, X*C = B, X*D = 6, X*E = 1 +// Y*A = /, Y*B = H, Y*C = C, Y*D = 7, Y*E = 2 +// Z*A = ., Z*B = I, Z*C = D, Z*D = 8, Z*E = 3 +// W*A = +, W*B = J, W*C = E, W*D = 9, W*E = 4 +// V*A = -, V*B = =, V*C = F, V*D = A, V*E = 5 +// key_table[0]=? is not used! +const char *const key_table = "?*GB61/HC72.ID83+JE94-=FA5"; +// 1234567890123456789012345 + +// 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)); + } + wait_us(100000); + } +} + +#endif // #ifdef KEY5X5 \ No newline at end of file