4x4 matrix keypad
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Diff: Keypad.h
- Revision:
- 1:ed0ad90ad734
- Parent:
- 0:b7249629f337
- Child:
- 2:a3545b56bdd7
--- a/Keypad.h Sat Sep 30 23:17:15 2017 +0000 +++ b/Keypad.h Sat Sep 30 23:26:44 2017 +0000 @@ -56,7 +56,7 @@ /** Read key data into buffer * @param none - * @return key number 1 to 12 (0 = no key action) + * @return key number by ASCII code */ uint8_t read(void); @@ -72,9 +72,10 @@ void key_scan(void); // buffer control + #define BF_SIZE 16 uint8_t read_addr; uint8_t write_addr; - uint8_t buf[32]; + uint8_t buf[BF_SIZE]; void bf_put (char dat); int8_t bf_get (void);