Description: 4* 4 keyboard scanning, the use of column scanning method. Followed by scanning the output for each column potentials, input from the scan line level, the adoption of the value judgments of the key is pressed
- [key] - Sunplus 614* 4 keypad scanner can elimin
- [12864bing] - lcd12864 driver can display numbers, let
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44jianpansaomiao.c
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