2AN3WM5DINMETERM5DinMeter

2024 M5STACK Dinmeter CONTENTS 2. 3. SPECIFICATIONS.......................................................................................................4 QUICK START............................................................................................................5 1.1. 3.1. 1.OUTLINE .....................................................................................................................3 SCAN WIFI.........................................................................................................5 3.2 SCAN BLE Device..............................................................................................5 M5STACK Dinmeter............................................................................................3 1. OUTLINE DinMeter is a1/32 DIN standard embedded development board equipped with a 1.14-inch ST7789 screen and powered by an M5StampS3 as its main controller. It features a built-in rotary encoder for precise knob position tracking. Additionally, it includes an RTC circuit, an onboard buzzer, and buttons below the screen for device interaction and alert notifications. In terms of power supply, the design supports a wide voltage input range of 6-36V DC and has reserved interfaces for a lithium battery and charging circuit to cater to various needs. Moreover, reserved PORTA and PORTB interfaces facilitate the expansion of I2C and GPIO devices. This product is suitable for applications in parameter measurement and detection, smart home control, Internet of Things (IoT) projects, smart wearables, access control, industrial control, and educational maker projects. Communication Capabilities:1. Main Controller: ESP32-S3FN8 Wireless Communication: WiFi (WIFI), OTG\CDC functionality Infrared Emission: Infrared emitter for IR control Expansion Interface: HY2.0-4P interface, can connect and expand I2C sensors Processor and Performance:2. Processor Model: Xtensa LX7 (ESP32-S3FN8) Storage Capacity: 8M-FLASH Processor Clock Speed: Xtensa® dual-core 32-bit LX7 microprocessor, up to 240 MHz Memory:3. Micro SD Card Expansion: Supported, for expanding storage space GPIO Pins and Programmable Interfaces:4. Grove Port: Can connect and expand I2C sensors 1.1. M5STACK DinMeter 2. SPECIFICATIONS 3. QUICK START 1. Open the Arduino IDE (refer to https://docs.m5stack.com/en/arduino/arduino_ide View the installation development board and software tutorial) 2. Select the M5StampS3 board and upload the code 3. The screen displays the scanned WiFi and the intensity information 3.1. Print WiFi information 3. QUICK START 1. Open the Arduino IDE (refer to https://docs.m5stack.com/en/arduino/arduino_ide View the installation development board and software tutorial) 2. Select the M5StampS3 board and upload the code 3. The screen displays the scanned BLE device 3.1. Print BLE information FCC Warning This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: -Reorient or relocate the receiving antenna. -Increase the separation between the equipment and receiver. -Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. -Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

Label FCCID:2AN3WM5DINMETER

Page1of5 FCCID:2AN3WM5DINMETER DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. InternalPhotos Photo1 Photo2 Page2of5 FCCID:2AN3WM5DINMETER DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo3 Photo4 Page3of5 FCCID:2AN3WM5DINMETER DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo5 Photo6 Page4of5 FCCID:2AN3WM5DINMETER DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo7 Photo8 Page5of5 FCCID:2AN3WM5DINMETER DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. Photo9 ------End------ Antenna

RFExposureevaluation FCCID:2AN3WM5DINMETER 1.1.ApplicableStandard Accordingto§1.1307(b)(1),systemsoperatingundertheprovisionsofthissectionshallbeoperatedina mannerthatensuresthatthepublicisnotexposedtoradiofrequencyenergylevelinexcessofthe Commission’sguidelines. Accordingto§1.1310and§2.1093RFexposurerequirement KDB447498v06:MobileandPortableDevicesRFExposureProceduresandEquipmentAuthorization Policies 1.2.Requirement AccordingtoKDB447498D01GeneralRFExposureGuidancev06Section4.3.1StandaloneSARtest exclusionconsiderations:“UnlessspecificallyrequiredbythepublishedRFexposureKDBprocedures, standalone1-gheadorbodyand10-gextremitySARevaluationforgeneralpopulationexposureconditions, bymeasurementornumericalsimulation,isnotrequiredwhenthecorrespondingSARTestExclusion Thresholdcondition,listedbelow,issatisfied.Thesetestexclusionconditionsarebasedonsource-based time-averagedmaximumconductedoutputpoweroftheRFchannelrequiringevaluation,adjustedfortune-up tolerance,andtheminimumtestseparationdistancerequiredfortheexposureconditions.22Theminimum testseparationdistanceisdeterminedbythesmallestdistancefromtheantennaandradiatingstructuresor outersurfaceofthedevice,accordingtothehostformfactor,exposureconditionsandplatformrequirements, toanypartofthebodyorextremityofauserorbystander(see5)ofsection4.1).ToqualifyforSARtest exclusion,thetestseparationdistancesappliedmustbefullyexplainedandjustifiedbytheoperating configurationsandexposureconditionsofthetransmitterandapplicablehostplatformrequirements,typically intheSARmeasurementorSARanalysisreport,accordingtotherequiredpublishedRFexposureKDB procedures.WhennootherRFexposuretestingorreportingisrequired,astatementofjustificationand compliancemustbeincludedintheequipmentapproval,inlieuoftheSARreport,toqualifyfortheSARtest exclusion.Whenrequired,thedevicespecificconditionsdescribedintheotherpublishedRFexposureKDB proceduresmustbesatisfiedbeforeapplyingtheseSARtestexclusionprovisions;forexample,handheldPTT two-wayradios,handsets,laptops&tabletsetc.23“ [(max.powerofchannel,includingtune-uptolerance,mW)/(min.testseparationdistance,mm)] · [√f(GHz)] ≤ 3.0for1-gSARand ≤ 7.5for10-gextremitySAR,where: • f(GHz)istheRFchanneltransmitfrequencyinGHz •PoweranddistanceareroundedtothenearestmWandmmbeforecalculation •Theresultisroundedtoonedecimalplaceforcomparison • 3.0and7.5arereferredtoasthenumericthresholdsinthestep2below Thetestexclusionsareapplicableonlywhentheminimumtestseparationdistanceis ≤ 50mmandfor transmissionfrequenciesbetween100MHzand6GHz.Whentheminimumtestseparationdistanceis<5 mm,adistanceof5mmaccordingto5)insection4.1isappliedtodetermineSARtestexclusion. 1.3.Manufacturingtolerance BLE Frequency (MHz) GFSK1M 240224402480 Target(dBm)001 Tolerance ± (Db) 1.01.01.0 Frequency (MHz) GFSK2M 240224402480 Target(dBm)111 Tolerance±(Db)1.01.01.0 Page2of2 2.4GWIFI(Conducted) Frequency (MHz) 11b 241224372462 Target(dBm)8.08.08.0 Tolerance ± (dB) 1.01.01.0 Frequency (MHz) 11g 241224372462 Target(dBm)8.08.08.0 Tolerance ± (dB) 1.01.01.0 Frequency (MHz) 11n(HT20) 241224372462 Target(dBm)8.08.08.0 Tolerance±(dB)1.01.01.0 Frequency (MHz) 11n(HT40) 242224372452 Target(dBm)7.07.07.0 Tolerance±(Db)1.01.01.0 2.EvaluationResult EvaluationResults Band/Modef(GHz) Antenna Distance (mm) Max.RFoutputpower (includingtune-up tolerance) SARTest Exclusion Threshold SARTest Exclusion dBmmW BLE2.552.01.580.50<3Yes 2.4GWIFI2.559.07.942.51<3Yes 3.Conclusion ThemeasurementresultscomplywiththeFCCLimitper47CFR2.1093fortheuncontrolledRFExposure andSARExclusionThresholdperKDB447498v06 .....................EndofReport.........................

Page1of35ReportNo.:AIT24031204W1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:M5StackTechnologyCo.,Ltd Applicantadd.: 5F,TangweiStockCommercialBuilding,YouliRoad,Bao’anDistrict, Shenzhen,China Manufacturer:M5StackTechnologyCo.,Ltd Manufactureradd.: 5F,TangweiStockCommercialBuilding,YouliRoad,Bao’anDistrict, Shenzhen,China ProductInformation: ProductName:M5DinMeter ModelNo:DinMeter BrandName:M5STACK FCCID:2AN3WM5DINMETER Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Mar.12,2024DateofTest:Mar.12,2024~Jul.11,2024 DateofIssue:Jul.12,2024TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalofDongguan Yaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedbyDongguanYaxu(AiT) TechnologyLimited,personalonly,andshallbenotedintherevisionofthedocument.Thistest reportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: EmiyaLinSimbaHuang Page2of35ReportNo.:AIT24031204W1 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS...........................................................................................................................................................................2 2TESTSUMMARY.................................................................................................................................................................4 2.1StatementoftheMeasurementUncertainty.....................................................................................4 2.2MeasurementUncertainty.................................................................................................................4 3TESTFACILITY...................................................................................................................................................................5 3.1Deviationfromstandard....................................................................................................................5 3.2Abnormalitiesfromstandardconditions...........................................................................................5 3.3TestLocation.....................................................................................................................................5 4GENERALINFORMATION................................................................................................................................................6 4.1Testfrequencies................................................................................................................................7 4.2EUTPeripheralList...........................................................................................................................7 4.3TestPeripheralList............................................................................................................................7 4.4TESTMETHODOLOGY....................................................................................................................8 4.4.1EUTConfiguration.................................................................................................................................8 4.4.2EUTExercise.........................................................................................................................................8 4.4.3GeneralTestProcedures.......................................................................................................................8 4.5DescriptionofTestModes.................................................................................................................9 5EQUIPMENTUSEDDURINGTEST...............................................................................................................................10 6TESTRESULTSANDMEASUREMENTDATA..........................................................................................................11 6.1Antennarequirement.......................................................................................................................11 6.2OnTimeandDutyCycle.................................................................................................................12 6.3MaximumConductedOutputPowerMeasurement.......................................................................13 6.46dBSpectrumBandwidthMeasurement.......................................................................................15 6.5PowerSpectralDensity...................................................................................................................16 6.6ConductedSpuriousEmissionsandBandEdgesTest..................................................................17 6.7Restrict-bandBand-edgeMeasurements.......................................................................................18 6.8RadiatedEmissionsMeasurement.................................................................................................21 6.9ConductedEmissions.....................................................................................................................32 7TESTSETUPPHOTOGRAPHSOFEUT......................................................................................................................35 8EXTERNALPHOTOGRAPHSOFEUT.........................................................................................................................35 9INTERNALPHOTOGRAPHSOFEUT..................................................................…

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Page1of37ReportNo.:AIT24031204W2 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. TESTREPORT ClientInformation: Applicant:M5StackTechnologyCo.,Ltd Applicantadd.: 5F,TangweiStockCommercialBuilding,YouliRoad,Bao’anDistrict, Shenzhen,China Manufacturer:M5StackTechnologyCo.,Ltd Manufactureradd.: 5F,TangweiStockCommercialBuilding,YouliRoad,Bao’anDistrict, Shenzhen,China ProductInformation: ProductName:M5DinMeter ModelNo.:DinMeter BrandName:M5STACK FCCID:2AN3WM5DINMETER Applicablestandards: FCCCFRTitle47Part15SubpartCSection15.247 PreparedBy: DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang,Huangjiang,Dongguan, Guangdong,China Tel.:+86-769-82020499Fax.:+86-769-82020495 DateofReceipt:Mar.12,2024DateofTest:Mar.12,2024~Jul.11,2024 DateofIssue:Jul.12,2024TestResult:Pass ThisdevicedescribedabovehasbeentestedbyDongguanYaxu(AiT)TechnologyLimitedandthe testresultsshowthattheequipmentundertest(EUT)isincompliancewiththeFCCrequirements. Anditisapplicableonlytothetestedsampleidentifiedinthereport. Note:Thisreportshallnotbereproducedexceptinfull,withoutthewrittenapprovalof DongguanYaxu(AiT)TechnologyLimited,thisdocumentmaybealteredorrevisedby DongguanYaxu(AiT)TechnologyLimited,personalonly,andshallbenotedintherevisionof thedocument.Thistestreportmustnotbeusedbytheclienttoclaimproductendorsement. Reviewedby:Approvedby: EmiyaLinSimbaHuang Page2of37ReportNo.:AIT24031204W2 DongguanYaxu(AiT)TechnologyLimited No.22,Jinqianling3rdStreet,Jitigang, Huangjiang,Dongguan,Guangdong,China. 1Contents Page COVERPAGE 1CONTENTS...........................................................................................................................................................................2 2TESTSUMMARY.................................................................................................................................................................5 2.1StatementoftheMeasurementUncertainty........................................................................................5 2.2MeasurementUncertainty....................................................................................................................5 3TESTFACILITY....................................................................................................................................................................6 3.1Deviationfromstandard.......................................................................................................................6 3.2Abnormalitiesfromstandardconditions...............................................................................................6 3.3TestLocation.........................................................................................................................................6 4GENERALINFORMATION................................................................................................................................................7 4.1Testfrequencies...................................................................................................................................8 4.2EUTPeripheralList..............................................................................................................................9 4.3TestPeripheralList...............................................................................................................................9 4.4TESTMETHODOLOGY.....................................................................................................................10 4.5DescriptionofTestModes..................................................................................................................11 5EQUIPMENTUSEDDURINGTEST...............................................................................................................................12 6TESTRESULTSANDMEASUREMENTDATA..........................................................................................................13 6.1Antennarequirement..........................................................................................................................13 6.1.1Standardrequirement:.............................................................................................................13 6.1.2EUTAntenna:...........................................................................................................................13 6.2OnTimeandDutyCycle....................................................................................................................14 6.2.1Standardrequirement:.............................................................................................................14 6.2.2MeasuringInstrumentsandSetting:........................................................................................14 6.2.3TestProcedures.......................................................................................................................14 6.2.4TestSetupLayout....................................................................................................................14 6.2.5EUTOperationduringTest......................................................................................................14 6.2.6Testresult.................................................................................................................................14 6.3MaximumConductedOutputPeakPowerMeasurement.................................................................15 6.3.1Standardrequirement:.............................................................................................................15 6.3.2MeasuringInstruments:...........................................................................................................15 6.3.3TestProcedures:......................................................................................................................15 6.3.4TestSetupLayout...............................................…

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Prepared by: Xu Ying Approved by: Xu Kai TA Technology (Shanghai) Co., Ltd. Building 3, No.145, Jintang Rd, Pudong Shanghai, P.R.China TEL: +86-021-50791141/2/3 FAX: +86-021-50791141/2/3-8000 OTA TEST REPORT TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2021. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Applicant Espressif Systems (Shanghai) Co.,Ltd. Product H0920 WIFI PIFA Report No. Y2305A0512-T1 Issue Date May 18, 2023 OTA Test Report Report No: Y2305A0512-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 12 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. TABLE OF CONTENTS 1. Test Laboratory .............................................................................................................................. 3 1.1. Notes of the Test Report ................................................................................................... 3 1.2. Test Facility ....................................................................................................................... 3 1.3. Testing Location ................................................................................................................ 3 1.4. Laboratory Environment .................................................................................................... 3 2. General Description of Equipment Under Test .............................................................................. 4 2.1. Applicant and Manufacturer Information ............................................................................ 4 2.2. General Information ........................................................................................................... 4 2.3. Test Date ........................................................................................................................... 4 2.4. Received Date ................................................................................................................... 4 2.5. Applied Standards ............................................................................................................. 5 3. Test Conditions .............................................................................................................................. 6 3.1. Test Configuration ............................................................................................................. 6 3.2. Test Measurement ............................................................................................................. 6 4. Test Results ................................................................................................................................... 7 4.1. Gain and Efficiency ............................................................................................................ 7 5. Equipment List ............................................................................................................................... 8 AN NE X A: 3-D Pattern Plots ...................................................................................................................... 9 2-D Pattern Plots ...................................................................................................................................... 10 ANNEX B: The EUT Appearance and Test Configuration........................................................................ 11 B.1 EUT Appearance ................................................................................................................... 11 B.2 Test Configuration ................................................................................................................. 12 OTA Test Report Report No: Y2305A0512-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 12 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 1. Test Laboratory 1.1. Notes of the Test Report This report shall not be reproduced in full or partial, without the written approval of TA Technology (Shanghai) Co., Ltd. The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein .Measurement Uncertainties were not taken into account and are published for informational purposes only. This report is written to support regulatory compliance of the applicable standards stated above. 1.2. Test Facility A2LA (Certificate Number: 3857.01) TA Technology (Shanghai) Co., Ltd. has been listed by American Association for Laboratory Accreditation to perform measurement. 1.3. Testing Location Company: TA Technology (Shanghai) Co., Ltd. Address: Building 3, No.145, Jintang Rd, Pudong Shanghai, P.R.China City: Shanghai Post code: 201201 Country: P. R. China Contact: Xu Kai Telephone: +86-021-50791141/2/3 Fax: +86-021-50791141/2/3-8000 Website: http://www.ta-shanghai.com E-mail: [email protected] 1.4. Laboratory Environment Temperature Min. =19°C，Max. = 25°C Relative humidity Min. =40%，Max. =72% Shield effect 0.7-6GHz > 100dB Ground resistance <0.5Ω OTA Test Report Report No: Y2305A0512-T1 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 4 of 12 This report shall not be reproduced except in full, without the written approval of TA Technology (Shanghai) Co., Ltd. 2. General Description of Equipment Under Test 2.1. Applicant and Manufacturer Information Applicant Name Espressif Systems (Shanghai) Co.,Ltd. Applicant address Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Manufacturer Name Espressif Systems (Shanghai) Co.,Ltd. Manufacturer address Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China 2.2. General Information EUT Description Product Name: H0920 WIFI PIFA HW Version: V1.0 SW Vers…

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DongguanYaxu(AiT)TechnologyLimited ReportNo.: AIT24031205W1 FCC ID : 2AN3WM5DINMETER Page 1 of 35 AppendixB RF Test Data for BT (BLE)(ConductedMeasurement) ProductName:M5DinMeter TradeMark:M5STACK Test Model:DinMeter EnvironmentalConditions Temperature: 24.6  C RelativeHumidity:52.4% ATM Pressure:100.0 kPa Test Engineer:Emiyalin Supervisedby:SimbaHaung DongguanYaxu(AiT)TechnologyLimited ReportNo.: AIT24031205W1 FCC ID : 2AN3WM5DINMETER Page 2 of 35 Contents Page COVERPAGE 1 Duty Cycle ........................................................................................................................................................................................3 1.1Test Result............................................................................................................................................................................3 1.2Test Graphs...........................................................................................................................................................................4 2 MaximumConductedOutputPower.................................................................................................................................................7 2.1Test Result............................................................................................................................................................................7 2.2Test Graphs...........................................................................................................................................................................8 3 -6dB Bandwidth...............................................................................................................................................................................11 3.1Test Result..........................................................................................................................................................................11 3.2Test Graphs.........................................................................................................................................................................12 4 MaximumPowerSpectralDensityLevel .........................................................................................................................................15 4.1Test Result..........................................................................................................................................................................15 4.2Test Graphs.........................................................................................................................................................................16 5 Band Edge ......................................................................................................................................................................................19 5.1Test Result................................................................................................................................................…

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