ThePiHut

Описание

Thisisagreatbattery-backedrealtimeclock(RTC)thatallowsyourmicrocontrollerprojecttokeeptrackoftimeevenifitisreprogrammed,orifthepowerislost.Perfectfordata-logging,clock-building,timestamping,timers,andalarms,etc.EquippedwithPCF8523RTC-itcanrunfrom3.3Vor5Vpower&logic!We'vehadabreakoutboardversionofthisRTCforawhile,butwewanttomakeiteveneasierforfolkstouse,sonowitcomeswithSTEMMAQTconnectorsforplug-and-playsimplicity.WorksgreatwithanArduinousingourRTClibrary,withCircuitPython,orwithaRaspberryPi(orsimilarsingleboardlinuxcomputer)PCB&headerareincludedPlugsintoanybreadboard,oryoucanusewiresTwomountingholesWillkeeptimefor5yearsormoreNote:ThisproductdoesnotcomewithaCR1220coincellbattery.Werecommendyoupurchaseacoincellbatterytousewiththisproduct.ThePCF8523issimpleandinexpensivebutnotahigh-precisiondevice.Itmayloseorgainupto2secondsaday.Forahigh-precision,temperaturecompensatedalternative,pleasecheckouttheDS3231precisionRTC.IfyouneedaDS1307forcompatibilityreasons,checkoutourDS1307RTCQTbreakoutTomakelifeeasiersoyoucanfocusonyourimportantwork,we'vetakenthesensorandputitontoabreakoutPCBalongwithsupportcircuitrytoletyouuseitwith3.3V(Feather/RaspberryPi)or5V(Arduino/Metro328)logiclevels.Additionally,sinceitspeaksI2Cyoucaneasilyconnectitupwithtwowires(pluspowerandground!).We'veevenincludedSparkFunqwiiccompatibleSTEMMAQTconnectorsfortheI2Cbussoyoudon'tevenneedtosolder!QTCableisnotincluded,butwehaveavarietyintheshop.JustwireuptoyourfavoritemicroandyoucanuseourCircuitPython/PythonorArduinodriverstoeasilyinterfacewiththePCF8523.Comesasafullyassembledandtestedbreakoutplusasmallpieceofheader.Youcansolderheaderintoplugitintoabreadboard,orsolderwiresdirectly.Checkoutourdetailedtutorialforpinouts,assembly,wiring&codeforbothArduinoandCircuitPython,andmore!TechnicalDetailsCheckoutourdetailedguideforcode,libraries,schematics,Fritzingobjectandmore!Thisboard/chipusesI2C7-bitaddress0x68ProductDimensions:25.4mmx17.8mmx7.8mm/1.0"x0.7"x0.3"ProductWeight:1.5g/0.1oz