2AN3WM5STACKCHANM5StackChan

CompanyName：M5StackTechnologyCo.,Ltd Address:BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,Guangdong,China StackChan 2026 V0.01 2 TABLEOFCONTENTS TABLEOFCONTENTS...............................................................................................2 1.OUTLINE................................................................................................................3 1.1HardwareComposition...................................................................................................3 2.PINDESCRIPTION................................................................................................4 2.1.USBINTERFACE..................................................................................................................4 2.2.GROVEINTERFACE...........................................................................................................4 3.FUNCTIONALDESCRIPTION...............................................................................5 3.1.CPUANDMEMORY..........................................................................................................5 3.2.STORAGEDESCRIPTION.................................................................................................5 3.2.1.ExternalFlashandSRAM.............................................................................................5 3.3.CPUCLOCK..........................................................................................................................6 3.4.RTCANDLOWPOWERMANAGEMENT....................................................................6 4.ELECTRICALCHARACTERISTICS.........................................................................7 4.1.ABSOLUTEMAXIMUMRATINGS.................................................................................7 4.2.WIFIRADIOANDBASEBAND.......................................................................................7 5.FCCWarning.........................................................................................................8 3 1.OUTLINE StackChanisESP32boardwhichbasedonESP32-S3chip,contained2-inchTFT screen.TheboardismadeofPC+ABC. 1.1HardwareComposition ThehardwareofCORES3:ESP32-S3chip,TFTscreen,GreenLED,Button,GROVE interface,TypeC-to-USBinterface,PowerManagementchipandbattery. ESP32-S3TheESP32isadual-coresystemwithtwoHarvardArchitectureXtensaLX6 CPUs.Allembeddedmemory,externalmemoryandperipheralsarelocatedonthe databusand/ortheinstructionbusoftheseCPUs.Withsomeminorexceptions(see below),theaddressmappingoftwoCPUsissymmetric,meaningthattheyusethe sameaddressestoaccessthesamememory.Multipleperipheralsinthesystemcan accessembeddedmemoryviaDMA. TFTScreenisa2-inchcolorscreendrivenILI9342Cwitharesolutionof320x240. Operatingvoltagerangeis2.6~3.3V,workingtemperaturerangeis-25~55°C. PowerManagementchipisX-Powers'sAXP2101.Theoperatingvoltagerangeis 2.9V~6.3Vandthechargingcurrentis1.4A. StackChanequipsESP32witheverythingneededforprogramming,everything neededforoperationanddevelopment 4 GPIO 2.PINDESCRIPTION 2.1.USBINTERFACE M5CAMREAConfigurationType-CtypeUSBinterface,supportUSB2.0 standardcommunicationprotocol. 2.2.GROVEINTERFACE 4pspacing2.0mmM5CAMREAGROVEPorts.A,Port.B,andPort.C,theinternal cablesareconnectedtoGND,5V,GPIO1,GPIO2,GPIO8,GPIO9,GPIO17,andGPIO18. 5 3.FUNCTIONALDESCRIPTION ThischapterdescribestheESP32-S3variousmodulesandfunctions. 3.1.CPUANDMEMORY Xtensa®dual-core32-bitLX7microprocessor,upto240MHz 384KBROM 512KBSRAM 16KBSRAMinRTC  SPI,DualSPI,QuadSPI,OctalSPI,QPIandOPIinterfacesthatallowconnectionto multipleflashandexternalRAM Flashcontrollerwithcacheissupported Flashin-CircuitProgramming(ICP)issupported 3.2.STORAGEDESCRIPTION 3.2.1.ExternalFlashandSRAM ESP32-S3supportsSPI,DualSPI,QuadSPI,OctalSPI,QPIandOPIinterfacesthatallow connectiontomultipleexternalflashandRAM. TheexternalflashandRAMcanbemappedintotheCPUinstructionmemoryspace andread-onlydatamemoryspace.TheexternalRAMcanalsobemappedintothe CPUdatamemoryspace.ESP32-S3supportsupto1GBofexternalflashandRAM,and hardwareencryption/decryptionbasedonXTS-AEStoprotectusers’programsand datainflashandexternalRAM. Throughhigh-speedcaches,ESP32-S3cansupportatatimeupto:  ExternalflashorRAMmappedinto32MBinstructionspaceas individualblocksof64KB ExternalRAMmappedinto32MBdataspaceasindividualblocksof 64KB.8-bit,16-bit,32-bit,and128-bitreadsandwritesare supported.Externalflashcanalsobemappedinto32MBdataspace asindividualblocksof64KB,butonlysupporting8-bit,16-bit,32- bitand128-bitreads. 6 3.3.CPUCLOCK TheCPUclockhasthreepossiblesources: Externalmaincrystalclock InternalfastRCoscillator(typicallyabout17.5MHz,andadjustable) PLLclock Theapplicationcanselecttheclocksourcefromthethreeclocksabove. Theselectedclocksourcedrivesthe CPUclockdirectly,orafterdivision,dependingontheapplication.Once theCPUisreset,thedefaultclock sourcewouldbetheexternalmaincrystalclockdividedby2. 3.4.RTCANDLOWPOWERMANAGEMENT Withtheuseofadvancedpower-managementtechnologies,ESP32-S3canswitch betweendifferentpowermodes.(seetable1)。 Activemode:CPUandchipradioarepoweredon.Thechipcan receive,transmit,orlisten.  Modemsleepmode:TheCPUisoperationalandtheclockspeedcan bereduced.Thewirelessbasebandandradioaredisabled,but wirelessconnectioncanremainactive.  Lightsleepmode:TheCPUispaused.TheRTCperipherals,aswellas theULPcoprocessorcanbewokenupperiodicallybythetimer. Anywake-upevents(MAC,host,RTCtimer,orexternalinterrupts) willwakeupthechip.Wirelessconnectioncanremainactive.Users canoptionallydecidewhatperipheralstoshutdown/keepon(refer toFigure1),forpower-savingpurpose. Deepsleepmode:CPUandmostperipheralsarepowereddown. OnlytheRTCmemoryispoweredonandRTCperipheralsare optional.Wi-FiconnectiondataarestoredintheRTCmemory.The ULPcoprocessorisfunctional. CurrentConsumptioninLowPowerModes:TABLE1 7 4.ELECTRICALCHARACTERISTICS 4.1.ABSOLUTEMAXIMUMRATINGS Table2:AbsoluteMaximumRatings 1.VIOtothepowersupplypad,ReferESP32TechnicalSpecificationAppendix IO_MUX,asSD_CLKofPowersupplyforVDD_SDIO. 4.2.WIFIRADIOA…

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LocalRepresentativeLetter ForCertificationServiceintheUSA FederalCommunicationsCommission EquipmentAuthorizationDivision,ApplicationProcessingBranch 7435OaklandMillsRoad Columbia,MD21048 Towhomitmayconcern PursuanttoSection2.911(d)(7),oftheCommission’sRules(47C.F.R.)weattestasfollowsfor theproductlistedbelow: FCCIDModelname 2AN3WM5STACKCHANStackChan Weherebyacknowledgeasfollows: i.bothsigneesconfirmthatthepointofcontactacceptsresponsibilitytoactasaUS- AmericanRepresentativeonbehalfoftheapplicant ii.thepointofcontactprovidesthephysicalU.S.addressandemailaslistedbelow iii.bothpartiesmaintaintherequirementsofthisagreementfornolessthanoneyear afterthegranteehasterminatedallmarketingandimportationortheconclusionof anyCommission-relatedproceedinginvolvingtheequipment. iv.Anexpirationdateforthisletterdoesnotexist.IncasetheU.S.agentchanges,the granteeisobligatedtonotifytheFCCwithin30daysviathegrantingTCB. US-AmericanPointofContactApplicant/ApprovalHolder SignatureDate:2026-4-30SignatureDate:2026-4-30 CompanyName:GLOCERTSTECHNOLOGYINCM5StackTechnologyCo.,Ltd FRN:00363397370026912345 ContactName:HuiyingFanJimmyLai Address:19784SUNKISSEDRIDGEDR, RIVERSIDE,CA92507UnitedStates BlockA10,ExpoBaySouthCoast, FuhaiStreet,Bao’anDistrict, Shenzhen,China Phone:(626)588-8039+8613509230623 Email:[email protected]@M5Stack.com

Page1of3FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. ExternalPhotos Photo1 Photo2 Page2of3FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo3 Photo4 Page3of3FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo5 Photo6 ------End------

Label FCCID:2AN3WM5STACKCHAN

Page1of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. InternalPhotos Photo1 Photo2 BT/WIFIAntenna Page2of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo3 Photo4 Page3of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo5 Photo6 Page4of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo7 Photo8 Page5of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo9 Photo10 Page6of6FCCID: 2AN3WM5STACKCHAN GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,Heping Community,FuhaiStreet,Bao'anDistrict,Shenzhen,Guangdong,China. Photo11 ------End------

Page1of9ReportNo.:AiTDG-260313013W5 Note:Thisdevicehasbeentestedandfoundtocomplywiththestandard(s)listed,thistestreportmerelycorrespondstothe testsample.Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory.This reportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofGuangdongAsiaHongkeTestTechnologyLimited. Ifthereisaneedtoalterorrevisethisdocument,therightbelongstoGuangdongAsiaHongkeTestTechnologyLimited,and itshouldgiveapriorwrittennoticeoftherevisiondocument.Thistestreportmustnotbeusedbytheclienttoclaimproduct endorsement. GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet,Bao'anDistrict,Shenzhen, Guangdong,China. RFExposureevaluation ProductName: M5StackChan BrandName: Model: StackChan SeriesModel: N/A FCCID:2AN3WM5STACKCHAN Applicant: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Manufacturer: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Standard(s): 47CFR§1.1310,47CFR§2.1091 KDB447498D01GeneralRFExposureGuidancev06 DateofReceipt:Mar.13,2026 DateofTest:Mar.13,2026~Mar.30,2026 IssuedDate:Mar.30,2026 IssuedBy: GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet, Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+860755-230967639Fax.:+860755-230967639 Reviewedby:Approvedby: Aalen.YeAllenWang Page 2 of 9 ReportNo.:AiTDG-260313013W5 ReportReviseRecord ReportVersionIssuedDateNotes M0Mar.30,2026InitialRelease Page 3 of 9 ReportNo.:AiTDG-260313013W5 Contents 1GENERALINFORMATION.............................................................................................................................................4 1.1ENVIRONMENTALCONDITIONS........................................................................................................................................4 1.2GENERALDESCRIPTIONOFEUT......................................................................................................................................4 1.3TESTFACILITY...............................................................................................................................................................5 1.4MEASUREMENTUNCERTAINTY........................................................................................................................................6 2METHODOFMEASUREMENT......................................................................................................................................7 2.1APPLICABLESTANDARD.................................................................................................................................................7 2.2LIMIT..........................................................................................................................................................................7 2.3MPECALCULATIONMETHOD.........................................................................................................................................8 2.4MANUFACTURINGTOLERANCE........................................................................................................................................8 2.5STANDALONEMPERESULT............................................................................................................................................9 2.6CONCLUSION................................................................................................................................................................9 Page 4 of 9 ReportNo.:AiTDG-260313013W5 1GENERALINFORMATION 1.1Environmentalconditions Duringthemeasurementtheenvironmentalconditionswerewithinthelistedranges: NormalTemperature:25°C RelativeHumidity:55% AirPressure:101kPa 1.2GeneralDescriptionofEUT ProductName:M5StackChan Model/Type reference: StackChan SerialModel:N/A Powersupply: DC5V1000mA Battery: DC3.7V550mAh2.035Wh Hardwareversion.:N/A Softwareversion.:N/A Testsample(s)ID:AiTDG-260313013-1 BT: Operationfrequency:2402MHz-2480MHz ChannelNumber:40channels Channelseparation:2MHz Modulation Technology: GFSK AntennaType: MetalAntenna Antennagain: 2.0dBi 2.4GWIFI: Operationfrequency: 802.11b/802.11g/802.11n(HT20):2412MHz~2462MHz 802.11n(HT40):2422MHz~2452MHz ChannelNumber: 802.11b/802.11g/802.11n(HT20):11 802.11n(HT40):7 Channelseparation:5MHz Modulation Technology: 802.11b:DirectSequenceSpreadSpectrum(DSSS) 802.11g/802.11n(HT20)/802.11n(HT40): OrthogonalFrequencyDivisionMultiplexing(OFDM) AntennaType: MetalAntenna Antennagain: 2.0dBi Remark:TheaboveDUT'sinformationwasdeclaredbymanufacturer.Formoredetailedfeatures description,pleaserefertothemanufacturer’sspecificationsortheUser'sManual. Page 5 of 9 ReportNo.:AiTDG-260313013W5 1.3TestFacility TestLaboratory: GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet,Bao'an District,Shenzhen,Guangdong,China Thetestfacilityisrecognized,certifiedoraccreditedbythefollowingorganizations: FCC-RegistrationNo.:251906DesignationNumber:CN1376 GuangdongAsiaHongkeTestTechnologyLimitedhasbeenregisteredandfullydescribedinareport filedwiththe(FCC)FederalCommunicationsCommission.TheacceptanceletterfromtheFCCis maintainedinourfiles. IC—RegistrationNo.:31737CABidentifier:CN0165 The3mSemi-anechoicchamberofGuangdongAsiaHongkeTestTechnologyLimitedhasbeen registeredbyCertificationandEngineeringBureauofIndustryCanadaforradioequipmenttestingwith RegistrationNo.:31737 A2LA-LabCert.No.:7133.01 GuangdongAsiaHongkeTestTechnologyLimitedhasbeenaccreditedbyA2LAfortechnical competenceinthefieldofelectricaltesting,andprovedtobeincompliancewithISO/IEC17025:2017 GeneralRequirementsfortheCompetenceofTestingandCalibrationLaboratoriesandanyadditional programrequirementsintheidentifiedfieldoftesting. Page 6 of 9 ReportNo.:AiTDG-260313013W5 1.4Measurementuncertai…

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Page1of26ReportNo.:AiTDG-260313013W3 Note:Thisdevicehasbeentestedandfoundtocomplywiththestandard(s)listed,thistestreportmerelycorrespondstothe testsample.Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory.This reportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofGuangdongAsiaHongkeTestTechnologyLimited. Ifthereisaneedtoalterorrevisethisdocument,therightbelongstoGuangdongAsiaHongkeTestTechnologyLimited,and itshouldgiveapriorwrittennoticeoftherevisiondocument.Thistestreportmustnotbeusedbytheclienttoclaimproduct endorsement. GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet,Bao'anDistrict,Shenzhen, Guangdong,China. TESTREPORT ProductName:M5StackChan BrandName: Model: StackChan SeriesModel: N/A FCCID:2AN3WM5STACKCHAN Applicant: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Manufacturer: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Standard(s):FCCCFRTitle47Part15SubpartCSection15.247 DateofReceipt:Mar.13,2026 DateofTest:Mar.13,2026~Mar.30,2026 IssuedDate:Mar.30,2026 IssuedBy: GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet, Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+860755-230967639Fax.:+860755-230967639 Reviewedby:Approvedby: Aalen.YeAllenWang Page 2 of 26 ReportNo.:AiTDG-260313013W3 ReportReviseRecord ReportVersionIssuedDateNotes M0Mar.30,2026InitialRelease Page 3 of 26 ReportNo.:AiTDG-260313013W3 Contents 1TESTSUMMARY...............................................................................................................................................................4 1.1TESTSTANDARDS..................................................................................................................................................................4 1.2TESTSUMMARY...................................................................................................................................................................4 1.3TESTFACILITY.......................................................................................................................................................................5 1.4MEASUREMENTUNCERTAINTY................................................................................................................................................5 2GENERALINFORMATION..................................................................................................................................................6 2.1ENVIRONMENTALCONDITIONS................................................................................................................................................6 2.2GENERALDESCRIPTIONOFEUT..............................................................................................................................................6 2.3DESCRIPTIONOFTESTMODESANDTESTFREQUENCY.................................................................................................................7 2.4SPECIALACCESSORIES............................................................................................................................................................8 2.5EQUIPMENTLISTFORTHETEST...............................................................................................................................................8 3TESTCONDITIONSANDRESULTS....................................................................................................................................10 3.1CONDUCTEDEMISSIONSTEST...............................................................................................................................................10 3.2RADIATEDEMISSIONSANDBANDEDGE..................................................................................................................................13 3.3MAXIMUMPEAKCONDUCTEDOUTPUTPOWER......................................................................................................................20 3.4POWERSPECTRALDENSITY..................................................................................................................................................21 3.56DBBANDWIDTH...............................................................................................................................................................22 3.6OUT-OF-BANDEMISSIONS...................................................................................................................................................23 3.7ANTENNAREQUIREMENT.....................................................................................................................................................25 4TESTSETUPPHOTOGRAPHSOFEUT...............................................................................................................................26 5PHOTOSOFEUT.............................................................................................................................................................26 Page 4 of 26 ReportNo.:AiTDG-260313013W3 1TESTSUMMARY 1.1TestStandards Thetestswereperformedaccordingtofollowingstandards: FCCRulesPart15.247:FrequencyHopping,DirectSpreadSpectrumandHybridSystemsthatarein operationwithinthebandsof902-928MHz,2400-2483.5MHz,and5725-5850MHz ANSIC63.10:2020:AmericanNationalStandardforTestingUnlicensedWirelessDevices KDB558074D0115.247MeasGuidancev05r02:GuidanceforComplianceMeasurementsonDigital TransmissionSystem,FrequencyHoppingSpredaSpectrumSystem,andHybridSystemDevices OperatingUnderSection15.247oftheFCCRules 1.2TestSummary TestItemSectionin47CFRResult Antennarequirement§15.203Pass OnTimeandDutyCycle// ACPowerLineConductedEmission§15.207(a)Pass ConductedPeakOutputPower§15.247(b)(3)Pass ChannelBandwidth§15.247(a)(2)Pass PowerSpectralDensi…

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Page1of26ReportNo.:AiTDG-260313013W4 Note:Thisdevicehasbeentestedandfoundtocomplywiththestandard(s)listed,thistestreportmerelycorrespondstothe testsample.Itisnotpermittedtocopyextractsofthesetestresultwithoutthewrittenpermissionofthetestlaboratory.This reportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofGuangdongAsiaHongkeTestTechnologyLimited. Ifthereisaneedtoalterorrevisethisdocument,therightbelongstoGuangdongAsiaHongkeTestTechnologyLimited,and itshouldgiveapriorwrittennoticeoftherevisiondocument.Thistestreportmustnotbeusedbytheclienttoclaimproduct endorsement. GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet,Bao'anDistrict,Shenzhen, Guangdong,China. TESTREPORT ProductName:M5StackChan BrandName: Model: StackChan SeriesModel: N/A FCCID:2AN3WM5STACKCHAN Applicant: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Manufacturer: M5StackTechnologyCo.,Ltd Address: BlockA10,ExpoBaySouthCoast,FuhaiStreet,Bao'anDistrict, Shenzhen,China Standard(s):FCCCFRTitle47Part15SubpartCSection15.247 DateofReceipt:Mar.13,2026 DateofTest:Mar.13,2026~Mar.30,2026 IssuedDate:Mar.30,2026 IssuedBy: GuangdongAsiaHongkeTestTechnologyLimited B1/F,Building11,JunfengIndustrialPark,ChongqingRoad,HepingCommunity,FuhaiStreet, Bao'anDistrict,Shenzhen,Guangdong,China Tel.:+860755-230967639Fax.:+860755-230967639 Reviewedby:Approvedby: Aalen.YeAllenWang Page 2 of 26 ReportNo.:AiTDG-260313013W4 ReportReviseRecord ReportVersionIssuedDateNotes M0Mar.30,2026InitialRelease Page 3 of 26 ReportNo.:AiTDG-260313013W4 Contents 1TESTSUMMARY...............................................................................................................................................................4 1.1TESTSTANDARDS..................................................................................................................................................................4 1.2TESTSUMMARY...................................................................................................................................................................4 1.3TESTFACILITY.......................................................................................................................................................................5 1.4MEASUREMENTUNCERTAINTY................................................................................................................................................5 2GENERALINFORMATION..................................................................................................................................................6 2.1ENVIRONMENTALCONDITIONS................................................................................................................................................6 2.2GENERALDESCRIPTIONOFEUT..............................................................................................................................................6 2.3DESCRIPTIONOFTESTMODESANDTESTFREQUENCY.................................................................................................................7 2.4SPECIALACCESSORIES............................................................................................................................................................8 2.5EQUIPMENTLISTFORTHETEST...............................................................................................................................................8 3TESTCONDITIONSANDRESULTS....................................................................................................................................10 3.1CONDUCTEDEMISSIONSTEST...............................................................................................................................................10 3.2RADIATEDEMISSIONSANDBANDEDGE..................................................................................................................................13 3.3MAXIMUMPEAKCONDUCTEDOUTPUTPOWER......................................................................................................................20 3.4POWERSPECTRALDENSITY..................................................................................................................................................21 3.56DBBANDWIDTH...............................................................................................................................................................22 3.6OUT-OF-BANDEMISSIONS...................................................................................................................................................23 3.7ANTENNAREQUIREMENT.....................................................................................................................................................25 4TESTSETUPPHOTOGRAPHSOFEUT...............................................................................................................................26 5PHOTOSOFEUT.............................................................................................................................................................26 Page 4 of 26 ReportNo.:AiTDG-260313013W4 1TESTSUMMARY 1.1TestStandards Thetestswereperformedaccordingtofollowingstandards: FCCRulesPart15.247:FrequencyHopping,DirectSpreadSpectrumandHybridSystemsthatarein operationwithinthebandsof902-928MHz,2400-2483.5MHz,and5725-5850MHz ANSIC63.10:2020:AmericanNationalStandardforTestingUnlicensedWirelessDevices KDB558074D0115.247MeasGuidancev05r02:GuidanceforComplianceMeasurementsonDigital TransmissionSystem,FrequencyHoppingSpredaSpectrumSystem,andHybridSystemDevices OperatingUnderSection15.247oftheFCCRules 1.2TestSummary TestItemSectionin47CFRResult Antennarequirement§15.203Pass OnTimeandDutyCycle// ACPowerLineConductedEmission§15.207(a)Pass MaximumConductedPeakOutput Power §15.247(b)(3)Pass -6dBBandwidth§15.247(a)(2)Pass PowerSpectra…

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CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 1 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A PRODUCTSPECIFICATION SHANGHAIDEMANELECTRONICSTECHNOLOGYCO.,LTD. Customer Espressif Customer’spartnumber ProductMaterialCode TFPD07H09100011 WorkingBand 2400-2500MHz IssueDate 2018-09-28 ReleaseVersion A Author WangLong CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 2 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 3 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A 1PRODUCTTECHNICALSPECIFICATION ElectricalSpecifications FrequencyRange（MHz）2400-2500 Bandwidth（MHz）100 InputImpendence（Ω）50 VSWR＜2.5 Gain（dBi）＞1.0 PolarizationTypeVertical MechanicalSpecifications AntennaLength（mm）13.75mm ConnectionModeWelding OperatinTemp（°C）-30～70 StoringTemp(°C)-30～70 外壳颜色RadomeColorSilver 2PRODUCTELECTRICALPERFORMANCEPARAMETER 2.1Productpicture 2.2S11 CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 4 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A 2.3VSWR 2.4SmithChart CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 5 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A Efficiency/Gain 2.5 Freq.(MHz)Gain(dBi)Effi.(%) 24001.9456.04 24102.0057.32 24201.9161.25 24301.9361.67 24401.8863.55 24501.9863.16 24601.9963.47 24702.0062.04 24801.7361.82 24901.9659.30 25001.8556.17 Avg.2.0060.52 CompanyName：ShanghaiDemanElectronicTechnologyCo.,Ltd 6 Address：DeMenInformationBuilding,No.58ShenxueRoad,XinzhuangIndustrialPark,MinhangDistrict,Shanghai Date09/28/2018VersionNo.A 3Productdimensions Company Name：Shanghai Deman Electronic Technology Co., Ltd 7 Address：DeMen Information Building, No. 58 Shenxue Road, Xinzhuang Industrial Park, Minhang District, Shanghai Date 09/28/2018VersionNo.A 4 Radiation pattern

Guangdong Asia Hongke Test Technology Limited Report No.:AiTDG-260313013W3 FCC ID: 2AN3WM5STACKCHAN Page 1 of 35 Appendix RF test data for BLE Product Name:M5StackChan Trade Mark:M5STACK Test Model:StackChan Environmental Conditions Temperature: 24.6  C Relative Humidity:52.4% ATM Pressure:100.0 kPa Test Engineer:Emiya Lin Supervised by:Simba Huang Guangdong Asia Hongke Test Technology Limited Report No.:AiTDG-260313013W3 FCC ID: 2AN3WM5STACKCHAN Page 2 of 35 Contents Page COVER PAGE 1 Duty Cycle................................…

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