Regulating the contents of the sensitive, such as the regulation minutes or seconds, hold down the automatic counting, or to pulse count.
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or to pulse count
或者脉冲计数
以上为机器翻译结果，长、整句建议使用 人工翻译 。
As long as the shaft per revolution, resulting in one or multiple fixed pulse, and pulse into the microcontroller to count, you can get speed information.
只要转轴每旋转一周，产生一个或固定的多个脉冲，并将脉冲送入单片机中进行计数，即可获得转速的信息。
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