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Withtheprogressanddevelopmentofsecurity.Signaltechnologyisalsoinawiderangeofpromotion,alsousedinawi
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Electronichousingandbasictheoryisbasedon51seriesmicrocontroller(AT89051)asthecore,withthecorresponding
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Beforetheinductionofelectronicdoorlockismadeofmagneticcardasthekeycardlock,usedinhotelrooms.Alongw
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1,thedoorwiththeguestcardring4.A:checkthelock,toconfirmwhetherthemicroswitchisdamaged,ifthefloorc
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