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Specifications: Size:1.75inches(45mm) ItemType:Strip LEDChipModel:SMD5050 PowerSource:DC Voltage:DC4V-7V Features: Roundandroundandroundtheygo!16ultrabrightsmartLEDPixelsarearrangedinacirclewith1.75"(44.5mm)outerdiameter. Theringsare'chainable'-connecttheoutputpinofonetotheinputpinofanother.Useonlyonemicrocontrollerpintocontrolas manyasyoucanchaintogether!EachLEDisaddressableasthedriverchipisinsidetheLED.Eachonehas~18mAconstantcurrent drivesothecolorwillbeveryconsistentevenifthevoltagevaries,andnoexternalchokeresistorsarerequiredmakingthedesignslim. Powerthewholethingwith5VDC(4-7Vworks)andyou'rereadytorock. Thereisasingledatalinewithaverytiming-specificprotocol.Sincetheprotocolisverysensitivetotiming, itrequiresareal-timemicrocontrollersuchasanAVR,Arduino,PIC,mbed,etc. ItcannotbeusedwithaLinux-basedmicrocomputerorinterpretedmicrocontrollersuchasthenetduinoorBasicStamp. Ourwonderfully-writtenNeopixellibraryforArduinosupportsthesepixels!Asitrequireshand-tunedassemblyitisonlyfor AVRcoresbutothersmayhaveportedthischipdrivercodesopleasegooglearound.An8MHzorfasterprocessorisrequired. Comesasasingleringwith16individuallyaddressableRGBLEDsassembledandtested. PackageIncludes: 1xWS2812 5050RGBLED
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