thepihut

ThePiHut

11 заказов
$9.04

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Описание

Thisisagreatbattery-backedrealtimeclock(RTC)thatallowsyourmicrocontrollerprojecttokeeptrackoftimeevenifitisreprogrammed,orifthepowerislost.Perfectfordatalogging,clock-building,timestamping,timersandalarms,etc.EquippedwithPCF8523RTC-itcanrunfrom3.3Vor5Vpower&logic!WorksgreatwithanArduinousingourRTClibrary,withCircuitPythonorwithaRaspberryPi(orsimilarsingleboardlinuxcomputer)PCB&headerareincludedPlugsintoanybreadboard,oryoucanusewiresTwomountingholesWillkeeptimefor5yearsormoreNote:ThisproductdoesnotcomewithaCR1220coincellbattery.Werecommendyoupurchaseacoincellbatterytousewiththisproduct.ThePCF8523issimpleandinexpensivebutnotahighprecisiondevice.Itmayloseorgainupto2secondsaday.Forahigh-precision,temperaturecompensatedalternative,pleasecheckouttheDS3231precisionRTC.IfyouneedaDS1307forcompatibilityreasons,checkoutourDS1307RTCbreakoutCheckoutourdetailedguideforcode,libraries,schematics,Fritzingobjectandmore!TechnicalDetailsCheckoutourdetailedguideforcode,libraries,schematics,Fritzingobjectandmore!Revisionhistory:AsofAug30,2017wehaveupdatedthedesigntohaveanRCfilteronthepowersupplytoreduceaccidentalresettingifpowerdropstoofast!Dimensions:Length:25.8mm/1.02inWidth:21.8mm/0.86inHeight:5mm/0.2inWeight:2.3g/0.09ozMountingholesare2.2mm(0.086in)diameter,25mm(0.98in)apartThisboard/chipusesI2C7-bitaddress0x68

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