* The keyboard is assumed to be a matrix having 4 rows by 6 columns. However, this code works for any
* matrix arrangements up to an 8 x 8 matrix. By using from one to three of the column inputs, the driver
* can support "SHIFT" keys. These keys are: SHIFT1, SHIFT2 and SHIFT3.
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标签：
keyboard
However
assumed
columns
上传时间：
2016-11-14
上传用户：ardager
