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If you press the button sequentially according to the above principle, the previously pressed button is supposed to come up!
And if you’ve used a mechanical fan, you’ll know that even if you don’t press the off button, it’s supposed to turn off by just pressing any button
Latch used for actual fan buttons
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However, if you press two buttons at the same time instead of sequentially, the problem occurs, so there is actually an additional claspless steel plate!
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The source of the picture!
