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im12 avatar im12 commented on April 28, 2024

波轮是一个多入单出的开关，本来ant是闭环的天线，UP切断了加入了开关，平时按下接入的是ST25DV，往一边拨接入中间开孔的一个UID芯片，断开ST25DV，另一边一样，相当于一个线圈天线给多个芯片做天线用
波轮开关的原理图可以参考这个厂家的介绍：http://www.jian-fu.com/product/content?id=664

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yelvlab avatar yelvlab commented on April 28, 2024

嗯，大致明白了，之前不了解要有UID芯片

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