通用射频按键（八）
Step9FurtherstepsThiswasatoproveIcoulddoitproject-Ihavecompletedit,soitnowsitsonmyshelfatworktoremindothersthatsimpleRFIDsystemsaresimplynotsecure.Youarewelcometoadapttheprojecthoweveryouwouldliketo,andwhileyoumayhavetheskeletonkeystothekingdom
发表于 2011/6/1 下午11:00:17
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通用射频按键（七）
Step7ProgrammingtheMicroIusedastandard6pinheadermountedonthePCBtoallowaFTDI5VUSB-232cabletobeusedtoprogramthechipin-situ-thiswasespeciallyimportant,astheATMegachipissoldereddirectlytothePCB,soitcouldntberemovedforinsertionintoanormalArduinoPCB-
发表于 2011/6/1 下午10:58:46
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通用射频按键（六）
Step6MountingthecomponentsTokeeptheprojectthesamesizeasanormalproxcard,IdecidedtomakeitonasmallPCBthatwasthesamesizeasabusinesscard.IdecidedtousesurfacemountpushbuttonsthatIbroughtfromeBay,sothatmeantthatallofthecomponentsmustbesolderedontothec
发表于 2011/6/1 上午10:53:50
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通用射频按键（五）
Step4TheSoftware-EnteringdataintoourcardThesoftwarewasnext.UsingtheArduinoIDE,IimplementedasimplemenusystemthatallowedmetoentertherelevantfacilityandCardIDdatadirectlyfromthekeypad.IalsoprovidedawayofdisplayingthedatausingtheL
发表于 2011/6/1 上午10:42:08
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通用射频按键（四）
Step3Howdoweemulateacard?Sothenextstepwastoidentifyhowtopretendtobeacard-IwantedacardthatIcouldtypeacardnumberinto,soithadtohaveamicroprocessoronit,waswellasakeypadtoallowthedatatobekeyedin.TheATMegamanipulatesthe125kHzRFfieldbyusingabrid
发表于 2011/6/1 上午10:39:17
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通用射频按键（三）
Step2Whatsstoredonthecard?IstartedbybuildingaRFIDcardreader(moredetailsinafuturearticle).Thatshowedmethedatathatwasbeingsentwhenthecardtransmitteditsinformation.TheRFIDcardsthatIbroughthavenumbersprintedonthebackofthem.T
发表于 2011/5/31 下午8:05:50
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通用射频按键（二）
Step1HowdoesRFIDwork?RFID,orRadioFrequencyIDentificationisthetermusedtodescribeawidevarietyofstandardsthatallowdatastoredwithinelectronictagstobereadbyareaderwithoutusingwires.Thereareanumberofstandards,encodingformats,andfrequenciesincom
发表于 2011/5/31 下午8:00:33
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通用射频按键（一）
AUniversalRFIDKeyRFIDprojectshavebeenprettyprominentrecently,rangingfromprojectshereinInstructables,toourlocalSiliconChipmagazineinAustraliapublishingaRFIDdoorlockprojectintheirNovemberissue.EvenIrecentlypurchasedaRFIDdoorlockoneBayfor$15
发表于 2011/5/31 下午7:57:01
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LED星型发光时钟（八）
Step7StuffitallinandFinishEverythingneedstogetputintothehousing.-Forthisclock,theclockmechanism(whichtakesAC),thePSUACwiresandtheACCordwireswhereallwirenuttedtogether,excepttheHotLeadforthePSU,thatwassolderedtotheswitchandanotherwirewasranfromt
发表于 2011/5/31 上午10:19:30
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LED星型发光时钟（七）
Step6SwitchfortheLEDsSincetheclockwillalwaysbeon,andtheLEDsshouldnotalwaysbeon,IaddedarockerswitchtothebottomoftheclockthatturnsofftheACtothePSU.-Placesomemaskingtapeinthespottheswitchisgoingtogo.-Marktheouterdimensionoftheswitch.-Useahacksawor
发表于 2011/5/31 上午10:17:34
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LED星型发光时钟（六）
Step5AttachtheDriverorResistorstotheLEDsIfaLEDcontrollerisbeingused:-ConstructyourdriverusingThisInstructableorOneofyourchoosing.-SolderthewireleadsoftheLEDsintotheircorrectholesonthedriver.IfsingleColorLEDsarebeingused:
发表于 2011/5/31 上午10:09:55
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LED星型发光时钟（五）
Step4GlueintheLEDsWarmupyourhotgluegunorusesomeothertypeofclearglue.-FindagoodholetoplacethefirstoftheLEDsinto.-ApplysomegluetotheoutsideoftheLED,besurenottogetanyonthelensoftheLED.-Placeitinitshole,andveryslightlyangleittowardswher
发表于 2011/5/31 上午10:05:51
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LED星型发光时钟（四）
Step3WiretheLEDsIwasalreadyalmostfinishedwiththewiringbeforeIthoughtIshouldmakeitintoanInstructable.Butitssimpleenough,alltheRGBLEDswerewiredinparallelonastringof4solidstrandwires.Athird-handreallyhelpswiththisstep.Ipreferredtousesolidstr
发表于 2011/5/31 上午12:19:09
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LED星型发光时钟（三）
Step2DrillHolesforLEDsFirstofftheholepositionsneedtomarked.Theclocksdiameterwas9.25"soitscircumferencewasabout29".SinceIwanted8LEDs,Ispacedtheholes3.65"apart.Icutabendablepieceofplastictouseasa
发表于 2011/5/30 下午3:34:50
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LED星型发光时钟（二）
Step1CollecttheSuppliesIhaveBasicKitsandEconomyKitsfortheLEDDriverIusedforthisproject.AswellasPCBswithfreeshipping.GetatheSameKitasseeninthisInstructable,with12xPirahnaRGBLEDsMix20ofanyColor5mmLED
发表于 2011/5/30 下午3:22:04
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