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1·May take on adscititious rubber headgear.

可以置于附加的橡胶灯帽上。

2·SL811HST chip is used as USB host which can read and write flash disk, thereby a kind of adscititious mass storage is accomplished .

通过采用SL811HST芯片，实现了USB主机的功能，可读写U盘，从而实现了单片机的外挂式海量存储。