Comments (2)
hydejoe
commented on June 24, 2024
1
或许可以尝试声音传感器+光敏电阻，以声音幅度在一定时间内超过一定阀值几判断为“抽纸事件”，显示屏幕显示“已抽x张”；换抽纸包时会导致盒内亮度增大，光敏电阻阻值低于一定数值一段时间，“已抽”数据归零。
外部噪声、抽纸手速、单次抽出多张会产生误差。感觉比弹簧可行度要高
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emptyhua
commented on June 24, 2024
测距是可行的，但是有个问题，抽纸包的表面在使用过程中并不是平整的，里面的纸张随着使用间距增大，厚度变的蓬松。所以我觉得可以加置一个带弹簧的压板，让纸包在使用过程中测出来的厚度相对准确的。当然，我个人目前还没有这个需求：）
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