接下来是knockListen 子程序，前5行负责读取当前的加速器数据值，并对基本的值读取进行调整。
Next up is the knockListen subroutine, the first five lines of which read the current accelerometer data values and adjust for the base value readings.
接下来是knockListen 子程序，前5行负责读取当前的加速器数据值，并对基本的值读取进行调整。
Next up is the knockListen subroutine, the first five lines of which read the current accelerometer data values and adjust for the base value readings.
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