2AC7Z-ESP8684M1U2.4GHz Wi-Fi & BT IoT Module

ESP8684-MINI-1U Version0.5 Espressif Systems Copyright © 2023 www.espressif.com ESP8684-MINI-1U User Manual Small-sized 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth ® 5 module Built around ESP8684 series of SoCs, RISC-V single-core microprocessor 14 GPIOs Sleeve monopole antenna connector 1 Module Overview 1 Module Overview 1.1 Features CPU and On-Chip Memory • ESP8684H2 or ESP8684H4 embedded, 32-bit RISC-V single-core processor, up to 120 MHz • 576 KB ROM • 272 KB SRAM (16 KB for cache) • SiP flash (see details in Table1) • Access to flash accelerated by cache • Supports flash in-Circuit Programming (ICP) Wi-Fi • 802.11 b/g/n • Center frequency range of operating channel: 2412~ 2462 MHz • Supports 20 MHz bandwidth in 2.4 GHz band • 1T1R mode with data rate up to 72.2 Mbps • Wi-Fi Multimedia (WMM) • TX/RX A-MPDU, TX/RX A-MSDU • Immediate Block ACK • Fragmentation and defragmentation • Transmit opportunity (TXOP) • Automatic Beacon monitoring (hardware TSF) • 3 × virtual Wi-Fi interfaces • Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode Note that when ESP8684 series scans in Station mode, the SoftAP channel will change along with the Station channel Note: * Please refer toESP8684 Series Datasheetfor de- tailed information about the module peripherals. 1.2 Description ESP8684-MINI-1U is a general-purpose Wi-Fi and Bluetooth LE module. The rich set of peripherals and a small size make the two modules an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc. 2Espressif Systems Submit Documentation Feedback ESP8684-MINI-1U User Manual v0.5 Integrated Components on Module • 26 MHz crystal oscillator Antenna Options • sleeve monopole antenna via a connector (ESP8684-MINI-1U) Operating Conditions • Operating voltage/Power supply: 3.0 ~ 3.6 V • Operating ambient temperature: –40 ~ 105 °C Bluetooth ® • Bluetooth LE: Bluetooth 5 • High power mode￿22 dBm￿ • Speed: 1 Mbps, 2 Mbps • Advertising extensions • Multiple advertisement sets • Channel selection algorithm #2 • Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna Peripherals • GPIO, SPI, UART, I2C, LED PWM controller, general DMA controller, temperature sensor, SAR ADC 1 Module Overview The series comparison for the module is as follows: Table 1: ESP8684-MINI-1U (CONN) Series Comparison Ambient Temp. 1 Size Ordering CodeSiP Flash (°C)(mm) ESP8684-MINI-1U-H22 MB –40 ~10513.2 × 12.5 × 2.4 ESP8684-MINI-1U-H44 MB 1.3 Applications • Generic Low-power IoT Sensor Hub • Generic Low-power IoT Data Loggers • Cameras for Video Streaming • Over-the-top (OTT) Devices • USB Devices • Speech Recognition • Image Recognition • Mesh Network • Home Automation • Smart Building • Industrial Automation • Smart Agriculture • Audio Applications • Health Care Applications • Wi-Fi-enabled Toys • Wearable Electronics • Retail & Catering Applications Espressif Systems3 Submit Documentation Feedback ESP8684-MINI-1U User Manual v0.5 1 Ambient temperature specifies the recommended temperature range of the environment immediately outside the Espressif module. ESP8684-MINI-1U comes with a connector for an sleeve monopole antenna. ESP8684-MINI-1U is available in two variants that integrate the ESP8684H2 and ESP8684H4 chip respectively. The ESP8684H2 and the ESP8684H4 chip fall into the same category, namely ESP8684 chip series. ESP8684 series of chips have a 32-bit RISC-V single-core processor. They integrate a rich set of peripherals, ranging from UART, I2C, LED PWM controller, general DMA controller, temperature sensor, and SAR ADC. It also includes SPI, Dual SPI and Quad SPI interfaces. ESP8684H2 and ESP8684H4 chip vary only in the size of system in package (SiP) flash. For details, please refer to ESP8684 Series Comparison in ESP8684 Series Datasheet. Contents Contents 1 Module Overview2 1.1 Features2 1.2 Description2 1.3 Applications3 2 Pin Definitions5 2.1 Pin Layout5 2.2 Pin Description5 3 Get Started7 3.1 What You Need7 3.2 Hardware Connection7 3.3 Set up Development Environment8 3.3.1 Install Prerequisites8 3.3.2 Get ESP-IDF9 3.3.3 Set up Tools9 3.3.4 Set up Environment Variables9 3.4 Create Your First Project9 3.4.1 Start a Project9 3.4.2 Connect Your Device9 3.4.3 Configure10 3.4.4 Build the Project10 3.4.5 Flash onto the Device11 3.4.6 Monitor12 4 U.S. FCC Statement14 5 Industry Canada Statement18 6 Related Documentation and Resources21 Revision History22 Espressif Systems4 Submit Documentation Feedback ESP8684-MINI-1U User Manual v0.5 2 Pin Definitions 2Pin Definitions 2.1Pin Layout The pin diagram below shows the approximate location of pins on the module. Pin 49 GND GNDGNDGND GNDGND GNDGNDGND Pin 1 Pin 2 Pin 3 Pin 4 Pin 6 Pin 5 Pin 7 Pin 8 Pin 9 Pin 10 Pin 11 Pin 53 GND Pin 52 GND Pin 12 Pin 13Pin 14 Pin 15 Pin 16Pin 17Pin 18Pin 19Pin 20 Pin 21 Pin 22 Pin 23Pin 24 Pin 25 Pin 51 GND Pin 26 Pin 27 Pin 28 Pin 29 Pin 30 Pin 31 Pin 32 Pin 33 Pin 34 Pin 35 Pin 50 GND Pin 36Pin 37 Pin 38Pin 39 Pin 40 Pin 41 Pin 42Pin 43Pin 44 Pin 45 Pin 46Pin 47 Pin 48 GND GND 3V3 NC IO2 IO3 NC EN NC NC GND IO0 IO1 GND NC IO10 NC IO4 IO5 IO6IO7 IO8IO9 NC NC IO18 NC NC NC RXD0 TXD0 NC NC NC NC GNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGNDGND Figure 1: Pin Layout (Top View) 2.2Pin Description The module has 53 pins. See pin definitions in Table2Pin Definitions. For peripheral pin configurations, please refer toESP8684 Series Datasheet. Table 2: Pin Definitions NameNo.Type 1 Function GND 1, 2, 11, 14, 36-53 PGround 3V33PPower supply NC 4, 7, 9, 10, 15, 17, 24, 25, 27, 28, 29, 32-35 —Not connected IO25I/O/TGPIO2, ADC1_CH2, FSPIQ IO36I/O/TGPIO3, ADC1_CH3 Cont’d on next page Espressif Systems5 Submit Documentation Feedback ESP8684-MINI-1U User Manual v0.5 2 Pin Definitions Table 2 – cont’d from previous page NameNo.Type 1 Function EN8I High: on, enables the chip. Low: off, the chip powers off. Note: Do not leave the EN pin floating. IO012I/O/TGPIO0, ADC1_CH0 IO113…

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ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:August29,2023 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthattheequipmentFCCID:2AC7Z-ESP8684M1Ufor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, ________________________ Name:MiaZhou E-mail:[email protected]

ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:August29,2023 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthattheequipmentFCCID:2AC7Z-ESP8684M1Ufor whichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceivinganequipmentauthorization pursuanttosection2.903oftheFCCrules. ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, ________________________ Name:MiaZhou E-mail:[email protected]

(Insertcompanyletter head) FederalCommunicationsCommission 7435 OaklandMills Road ColumbiaMD 21046 Subject:Certificationdesignatinga U.S.agentforserviceof processpursuantto Part2.911(d)(7) To whomit may concern, ESPRESSIFSYSTEMS(SHANGHAI)CO., LTD , 2AC7Z(“the applicant”) certifiesthat, as of the date of the filing of application,[Grid Connect,Inc.] (“the agent ”) is designatedas the U.S. agent for the purposeof acceptingserviceof processon behalfof the applicant. The physicalU.S. addressand email for the designatedagent are: PhysicalU.S. address: [1630 W. Diehl Road,Naperville,IL 60563 ] Em ail: [[email protected]] The applicantacceptsto maintainan agent for serviceof processin the UnitedStatesfor no less than one year after either the granteehas permanentlyterminatedall marketingand importationof the applicableequipment within the U.S., or the conclusionof any Commission-relatedadministrativeor judicialproceedinginvolvingthe equipment,whicheveris later. The agent acceptsthe designationby (the applicant)as the U.S. agent to acceptserviceof processincludes, but is not limitedto, deliveryof any correspondence,notices,orders,decisions,and requirementsof administrative,legal, or judicialprocessrelatedto Commissionproceedings. Signedby the Applicant （FRN: 0023938848） Signedby the Agent (if differentfrom the Applicant) （FRN: 0024737660） Name:Mia ZhouName:M.B. Justice Title : CertificationManagerTitle : President Email : [email protected] : [email protected] Date: July 20, 2023Date: July 20, 2023

ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD Date:August29,2023 FederalCommunicationsCommission OfficeofEngineeringandTechnologyLaboratoryDivision 7435OaklandMillsRd ColumbiaMD21046-1609 Subject:RequestforConfidentiality FCCID:2AC7Z-ESP8684M1U ToWhomItMayConcern, PursuanttotheprovisionsofSections0.457and0.459ofCommission’srules (47CFR§§0.457,0.459),wearerequestingtheCommissiontowithholdthefollowing attachment(s)asconfidentialdocumentfrompublicdisclosureindefinitely. SchematicDiagram  BlockDiagram PartList OperationalDescription  Tune-upProcedure Abovementioneddocumentcontainsdetailedsystemandequipmentdescriptionare consideredasproprietaryinformationinoperationoftheequipment.Thepublic disclosureofabovedocumentsmightbeharmfultoourcompanyandwouldgive competitoranunfairadvantageinthemarket. Inadditionaltoabovementioneddocuments,pursuanttoPublicNoticeDA04-1705of theCommission’spolicy,inordertocomplywiththemarketingregulationsin47CFT §2.803andtheimportationrulesin47CFR§2.1204,whileensuringthatbusiness sensitiveinformationremainsconfidentialuntiltheactualmarketingofnewlyauthorized devices.Wearerequestingthecommissiontograntshort-termconfidentialityrequest onthefollowingattachment(s)for180daysafterthegrantasoutlinedinPublicNotice DA04-1705. ExternalPhotos InternalPhotos TestSetupPhotos UserManual Itisourunderstandingthatallmeasurementtestreports,FCCIDlabelformatand correspondentduringcertificationreviewprocesscannotbegrantedasconfidential documentsandthoseinformationwillbeavailableforpublicreviewoncethegrantof equipmentauthorizationisissued. BestRegards, ______________________ ContactPerson:MiaZhou E-mail:[email protected]

ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD Date:August29,2023 PowerofAttorney Towhomitmayconcern, PleasebenotifiedthatI,MiaZhou,havedesignatedJimTsaiinSportonInternationalInc.asthe personbeingresponsibleforthisprojectandtosigntheform731andotherdocumentation. AnyandallactscarriedoutbyJimTsaiinSportonInternationalInc.,onthemattersofrelatingto allprocessesrequiredintheFCCapprovalandanycommunicationneededwiththenational authority,shallhavethesamelegalauthorityasactsonourownbehalf. Wefurthercertifiesthatneithertheapplicantnoranypartytothisapplication,asdefinedin47CFR Ch.1.2002(b),issubjecttoadenialtoFederalbenefits,thatincludeFCCbenefits,pursuantto section5301oftheAnti-DrugAbuseActof1998,21U.S.C.835(a). Thisauthorizationislimitedtotheproductofasfollowing: FCCID:2AC7Z-ESP8684M1U Ifyouhaveanyacknowledgementandresponse,pleasesendittoSportonInternationalInc. directly. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehavemybestattention. Sincerelyyours, ContactPerson:MiaZhou E-mail:[email protected]

Applicant/GranteeESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FCCID:2AC7Z-ESP8684M1U Section15.212ModularTransmitters RequestforModularApprovalRequestforLimitedModularApproval RequirementsEUTConditionsComply(Y/N) SingleModularApprovalRequirements 1Theradioelementsofthemodular transmittermusthavetheirown shielding.Thephysicalcrystaland tuningcapacitorsmaybelocated externaltotheshieldedradioelements. Theradioportionofthismoduleis shielded,pleaseseeexhibitionexternal photos. Y 2Themodulartransmittermusthave bufferedmodulation/datainputs(ifsuch inputsareprovided)toensurethatthe modulewillcomplywithPart15 requirementsunderconditionsof excessivedataratesorover-modulation. Themodulehasbuffermodulation/data inputs. Y 3Themodulartransmittermusthaveits ownpowersupplyregulation. Themodulehasitsownpowersupply regulation.Pleaseseetheschem.pdf Y 4Themodulartransmittermustcomply withtheantennaandtransmission systemrequirementsofSections15.203, 15.204(b)and15.204(c).Theantenna musteitherbepermanentlyattachedor employa“unique”antennacoupler(at allconnectionsbetweenthemoduleand theantenna,includingthecable).The “professionalinstallation”provisionof Section15.203isnotapplicableto modulesbutcanapplytolimited modularapprovalsunderparagraph(b) ofthissection. Therequirementsofantennaconnector andspuriousemissionhavebeen fulfilled.PleaserefertotheTestReport exhibition. Y 5Themodulartransmittermustbetested inastand-aloneconfiguration,i.e.,the modulemustnotbeinsideanother deviceduringtestingforcompliance withPart15requirements.Unlessthe transmittermodulewillbebattery powered,itmustcomplywiththeAC lineconductedrequirementsfoundin Section15.207.ACorDCpowerlines anddatainput/outputlinesconnectedto themodulemustnotcontainferrites, unlesstheywillbemarketedwiththe module(seeSection15.27(a)).The lengthoftheselinesshallbethelength typicalofactualuseor,ifthatlengthis unknown,atleast10centimetersto insurethatthereisnocouplingbetween thecaseofthemoduleandsupporting PleaserefertotheSetupPhoto exhibitionforthestand-alonetest configuration. Y equipment.Anyaccessories,peripherals, orsupportequipmentconnectedtothe moduleduringtestingshallbe unmodifiedandcommerciallyavailable (seeSection15.31(i)). 6Themodulartransmittermustbe equippedwitheitherapermanently affixedlabelormustbecapableof electronicallydisplayingitsFCC identificationnumber. (A)Ifusingapermanentlyaffixedlabel,the modulartransmittermustbelabeledwithitsown FCCidentificationnumber,and,iftheFCC identificationnumberisnotvisiblewhenthe moduleisinstalledinsideanotherdevice,then theoutsideofthedeviceintowhichthemoduleis installedmustalsodisplayalabelreferringto theenclosedmodule.Thisexteriorlabelcanuse wordingsuchasthefollowing:“Contains TransmitterModule FCCID:XYZMODEL1”or“ContainsFCCID: XYZMODEL1.”Anysimilarwording thatexpressesthesamemeaningmaybeused. TheGranteemayeitherprovidesuchalabel,an exampleofwhichmustbeincludedinthe applicationforequipment authorization,or,mustprovideadequate instructionsalongwiththemodulewhichexplain thisrequirement.Inthelattercase,acopyof theseinstructionsmustbeincludedinthe applicationforequipmentauthorization. (B)Ifthemodulartransmitterusesanelectronic displayoftheFCCidentificationnumber,the informationmustbereadilyaccessibleand visibleonthemodulartransmitteroronthe deviceinwhichitisinstalled.Ifthemoduleis installedinsideanotherdevice,thentheoutside ofthedeviceintowhichthemoduleisinstalled mustdisplayalabelreferringtotheenclosed module.Thisexteriorlabelcanusewordingsuch asthefollowing: “ContainsFCCcertifiedtransmittermodule(s).” Anysimilarwordingthatexpressesthesame meaningmaybeused.Theusermanualmust includeinstructionsonhowtoaccessthe electronicdisplay.Acopyoftheseinstructions mustbeincludedintheapplicationfor equipmentauthorization. TheModulewillbelabeledwithitsown FCCID,andtheinstructiononthe labelingruleoftheendproducthasbeen statedintheUserManualofthis module.PleaserefertotheLabeland UserManualexhibition. Y 7Themodulartransmittermustcomply withanyspecificrulesoroperating requirementsthat ordinarilyapplytoacomplete transmitterandthemanufacturermust provideadequateinstructionsalongwith themoduletoexplainanysuch requirements.Acopyofthese instructionsmustbeincludedinthe applicationforequipmentauthorization. TherequiredFCCrulehasbeenfulfilled andalltheinstructionsformaintaining compliancehavebeenclearlystatedin theUserManual. Y 8Themodulartransmittermustcomply withanyapplicableRFexposure requirementsinitsfinalconfiguration. PleasereferexhibitionRFExposurefor thecomplianceofMPERFexposure rule. Y _________________________________ ContactPerson:MiaZhou E-mail:[email protected]

Photographs of EUT Report No.: EP361935A Brand Name: ESPRESSIF; Model Name: ESP8684-MINI-1U Sporton International Inc. (Kunshan) Page Number : 1 of 5 TEL : 86-0512-5790-0158 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 720510 1. External Photograph of EUT Photographs of EUT Report No.: EP361935A Brand Name: ESPRESSIF; Model Name: ESP8684-MINI-1U Sporton International Inc. (Kunshan) Page Number : 2 of 5 TEL : 86-0512-5790-0158 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 Photographs of EUT Report No.: EP361935A Brand Name: ESPRESSIF; Model Name: ESP8684-MINI-1U Sporton International Inc. (Kunshan) Page Number : 3 of 5 TEL : 86-0512-5790-0158 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 2. Photograph of Accessory 720510 BLE/WIFI Ant.

Label location: It’s on the shield

乐鑫信息科技（上海） 股份有限公司 xxxxxx ESP8684-MINI-1U CMIIT ID: IC :21098-ESP8684M1U FCC ID: 2AC7Z-ESP8684M1U

Photographs of EUT Report No.: EP361935A Brand Name: ESPRESSIF; Model Name: ESP8684-MINI-1U Sporton International Inc. (Kunshan) Page Number : 4 of 5 TEL : 86-0512-5790-0158 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 720510 3. Internal Photograph of EUT Photographs of EUT Report No.: EP361935A Brand Name: ESPRESSIF; Model Name: ESP8684-MINI-1U Sporton International Inc. (Kunshan) Page Number : 5 of 5 TEL : 86-0512-5790-0158 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01

Sporton International Inc. (Kunshan) Page Number : 1 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 RF Exposure Evaluation Report APPLICANT : Espressif Systems (Shanghai) Co.,Ltd. EQUIPMENT : 2.4GHz Wi-Fi & BT IoT Module BRAND NAME : ESPRESSIF MODEL NAME : ESP8684-MINI-1U FCC ID : 2AC7Z-ESP8684M1U STANDARD : 47 CFR Part 2.1091 FCC KDB 447498 D01 v06 The product evaluation date was started from Aug. 17, 2023 and completed on Aug 17, 2023. We, Sporton International Inc. (Kunshan), would like to declare that the device has been evaluated in accordance with47 CFR Part 2.1091 and FCC KDB 447498 D01 v06, and pass the limit. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Si Zhang Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc. (Kunshan) Page Number : 2 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 Table of Contents 1. ADMINISTRATION DATA ........................................................................................................................... 4 1.1. Testing Laboratory ............................................................................................................................. 4 2. DESCRIPTION OF EQUIPMENT UNDER TEST (EUT) ............................................................................. 5 3. MAXIMUM RF AVERAGE OUTPUT TUNE UP POWER AMONG PRODUCTION UNITS ....................... 6 4. RF EXPOSURE LIMIT INTRODUCTION .................................................................................................... 7 5. RADIO FREQUENCY RADIATION EXPOSURE EVALUATION ............................................................... 8 5.1. Standalone Power Density Calculation ............................................................................................. 8 Sporton International Inc. (Kunshan) Page Number : 3 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA361935 Rev. 01 Initial issue of report. Aug. 31, 2023 Sporton International Inc. (Kunshan) Page Number : 4 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 1. Administration Data 1.1. Testing Laboratory Sporton International Inc. (Kunshan) is accredited to ISO/IEC 17025:2017 by American Association for Laboratory Accreditation with Certificate Number 5145.02. Testing Laboratory Test Firm Sporton International Inc. (Kunshan) Test Site Location No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China TEL : +86-512-57900158 FAX : +86-512-57900958 Test Site No. Sporton Site No. FCC Designation No. FCC Test Firm Registration No. SAR01-KS CN1257 314309 Applicant Company Name Espressif Systems (Shanghai) Co.,Ltd. Address Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Manufacturer Company Name Espressif Systems (Shanghai) Co.,Ltd. Address Suite 204, Block 2, 690 Bibo Road, Zhang Jiang Hi-Tech Park, Shanghai, China Sporton International Inc. (Kunshan) Page Number : 5 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type 2.4GHz Wi-Fi & BT IoT Module Brand Name ESPRESSIF Model Name ESP8684-MINI-1U FCC ID 2AC7Z-ESP8684M1U Wireless Technology and Frequency Range WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz Bluetooth: 2402 MHz ~ 2480 MHz Mode WLAN 2.4GHz 802.11b/g/n HT20 Bluetooth LE Antenna Gain WLAN/Bluetooth: 2.33 dBi Antenna Type WLAN/Bluetooth: sleeve monopole Antenna HW Version V1.0 SW Version v1.1.3.4 EUT Stage Identical Prototype Remark: 1. The above EUT's information was declared by manufacturer. Please refer to the specifications or user's manual for more detailed description. Comments and Explanations: 1. The declared of product specification for EUT presented in the report are provided by the manufacturer, and the manufacturer takes all the responsibilities for the accuracy of product specification. 2. The maximum RF output tune up power, antenna gain also the safe distance used for evaluate RF exposure were declared by manufacturer. Sporton International Inc. (Kunshan) Page Number : 6 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 3. Maximum RF average output tune up power among production units <2.4GHz WLAN > Mode Maximum Average Power (dBm) 2.4GHz 802.11b 20.0 802.11g 21.0 802.11n-HT20 19.0 <Bluetooth> Mode Maximum Average power(dBm) Bluetooth LE 22.0 Sporton International Inc. (Kunshan) Page Number : 7 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Aug. 31, 2023 FCC ID : 2AC7Z-ESP8684M1U Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA361935 4. RF Exposure Limit Introduction According to ANSI/IEEE C95.1-1992, the criteria listed in Table 1 shall be used to evaluate the environmental impact of human exposure to radio frequency (RF) radiation as specified in §1.1310. The MPE was calculated at 20 cm to show compliance with the power density limit. The following formula was used to calc…

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Date 08/12/2021 Version No. B 上海德门信息技术有限公司 1 上海德门信息技术有限公司 SHANGHAI DEMAN INFORMATION TECHNOLOGY CO.,LTD. 产品规格书 PRODUCT SPECIFICATION 客户 Customer 客户编码 Customer’s part number 产品料号 Product Material Code TFPD08H10060011 发行日期 Issue Date 2021-8-12 发行版本 Release Version B 作者 Author 汪龙 联系人Contacts: 主立建Wangljian [email protected] 13916613851 葛婷婷getintin [email protected] 18756472140 Date 08/12/2021 Version No. B 上海德门信息技术有限公司 2 1 产品技术指标（PRODUCT TECHNICAL SPECIFICATION） 电性能指标Electrical Specifications 频率范围Frequency Range（MHz） 2400-2500 最大功率Max power(W) 1 频带宽度Band width（MHz） 100 输入阻抗Input Impendence（Ω） 50 电压驻波比 VSWR ＜2.5 增益Gain（dBi） ＞1.0 极化形式Polarization Type 垂直极化Vertical 方向性Directionality 全向Omnidirectional 机械指标Mechanical Specifications 外部尺寸External Dimensions (L×W) (mm) 100×5.2 连接方式Connection Mode Ipex三代 工作温度Operatin Temp（°C） -30～70 储存温度Storing Temp(°C) -30～70 外壳颜色Radome Color 黑色Black Date 08/12/2021 Version No. B 上海德门信息技术有限公司 3 2 产品电性能参数（PRODUCT ELECTRICAL PERFORMANCE PARAMETER） 2.1 产品图片（Product picture） 2.2 效率、增益（Efficiency/Gain） Freq. （MHz） Effi(%) Gain (dBi) 2400 78.11 2.17 2410 78.0 2.19 2420 77.9 2.31 2430 78.0 2.26 2440 78.1 2.21 2450 78.1 2.33 2460 77.8 2.32 2470 76.6 2.14 2480 75.7 2.05 2490 74.2 2.02 2500 72.4 1.83 Avg. 76.8 2.17 Date 08/12/2021 Version No. B 上海德门信息技术有限公司 4 2.3 驻波比(VSWR)&反射损耗(Return Loss)&史密斯图(Smith Chart) Date 08/12/2021 Version No. B 上海德门信息技术有限公司 5 2.4 方向性图（Directivity Diagram） XY YZ XZ

Sporton International Inc.(Kunshan) Page Number : 1 of 56 TEL : +86-512-57900158 Report Issued Date : Aug. 31, 2023 FCC ID: 2AC7Z-ESP8684M1U Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR361935A FCC RF Test Report APPLICANT : Espressif Systems (Shanghai) Co.,Ltd. EQUIPMENT : 2.4GHz Wi-Fi & BT IoT Module BRAND NAME : ESPRESSIF MODEL NAME : ESP8684-MINI-1U FCC ID : 2AC7Z-ESP8684M1U STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Jul. 11, 2023 ~ Aug. 18, 2023 We, Sporton International Inc. (Kunshan), would like to declare that the tested sample has been evaluated in accordance with the test procedures and has been in compliance with the applicable technical standards. The test results in this report apply exclusively to the tested model / sample. Without written approval of Sporton International Inc. (Kunshan), the test report shall not be reproduced except in full. Approved by: Jason Jia Sporton International Inc. (Kunshan) No. 1098, Pengxi North Road, Kunshan Economic Development Zone Jiangsu Province 215300 People’s Republic of China Sporton International Inc.(Kunshan) Page Number : 2 of 56 TEL : +86-512-57900158 Report Issued Date : Aug. 31, 2023 FCC ID: 2AC7Z-ESP8684M1U Report Version : Rev. 01 Report Template No.: BU5-FR15CBLE Version 2.0 FCC RF Test Report Report No. : FR361935A TABLE OF CONTENTS REVISION HISTORY .......................................................................................................................................... 3 SUMMARY OF TEST RESULT ......................................................................................................................... 4 1 GENERAL DESCRIPTION .......................................................................................................................... 5 1.1 Applicant ............................................................................................................................................ 5 1.2 Manufacturer ...................................................................................................................................... 5 1.3 Product Feature of Equipment Under Test ........................................................................................ 5 1.4 Product Specification of Equipment Under Test ................................................................................ 5 1.5 Modification of EUT ........................................................................................................................... 5 1.6 Testing Location ................................................................................................................................ 6 1.7 Test Software ..................................................................................................................................... 6 1.8 Applicable Standards ......................................................................................................................... 6 2 TEST CONFIGURATION OF EQUIPMENT UNDER TEST ........................................................................ 7 2.1 Carrier Frequency Channel ............................................................................................................... 7 2.2 Test Mode .......................................................................................................................................... 8 2.3 Connection Diagram of Test System ................................................................................................. 9 2.4 Support Unit used in test configuration and system ........................................................................ 10 2.5 EUT Operation Test Setup .............................................................................................................. 10 2.6 Measurement Results Explanation Example ................................................................................... 10 3 TEST RESULT .......................................................................................................................................... 11 3.1 6dB and 99% Bandwidth Measurement .......................................................................................... 11 3.2 Output Power Measurement ............................................................................................................ 22 3.3 Power Spectral Density Measurement ............................................................................................ 23 3.4 Conducted Band Edges and Spurious Emission Measurement .…

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