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超低功耗独立运动开关
唤醒模式非常适合以极低功耗(电源电压为2.0 V时功耗为270 nA)简单地检测是否存在运动。唤醒模式在实施运动激活开关时尤其有用,可让系统的其余部分保持关断,直至检测到运动。在唤醒模式下,每秒只进行6次加速度测量,以确定是否存在运动,这样可将功耗 ...
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