2AC7Z-ESP868402UC2.4GHz Wi-Fi & BT IoT Module

ESP8684-WROOM-02UC User Manual 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth ® 5 module Built around ESP8684 series of SoC, RISC-V single-core microprocessor 2 MB/4 MB flash in chip package 14 GPIOs External antenna connector ESP8684-WROOM-02UC Version0.5 Espressif Systems Copyright © 2023 www.espressif.com 1 Module Overview 1Module Overview 1.1Features 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 ESP8684-WROOM-02UC Ordering Information) •Access to flash accelerated by cache •Supports flash in-Circuit Programming (ICP) Wi-Fi •IEEE 802.11 b/g/n-compliant •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 Bluetooth ® •Bluetooth LE: Bluetooth 5 •Speed: 125 kbps, 500 kbps, 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, timers and watchdogs Integrated Components on Module •26 MHz crystal oscillator Antenna Options •External antenna via a connector Operating Conditions •Operating voltage/Power supply: 3.0~3.6 V •Operating ambient temperature: –40~85 °C 1.2Description ESP8684-WROOM-02UC is a general-purpose Wi-Fi and Bluetooth LE module. The rich set of peripherals and high performance make this module an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc. ESP8684-WROOM-02UC comes with a connector for an external antenna. The ordering information for ESP8684-WROOM-02UC is as follows: Espressif Systems2 Submit Documentation Feedback ESP8684-WROOM-02UC Datasheet v0.5 1 Module Overview Table 1: ESP8684-WROOM-02UC Ordering Information ModuleOrdering CodeChip EmbeddedSiP Flash Module Dimensions (mm) ESP8684-WROOM-02UC ESP8684-WROOM-02UC-N2ESP8684H22 MB 14.3 × 18.0 × 3.2 ESP8684-WROOM-02UC-N4ESP8684H44 MB The ESP8684H2 chip and the ESP8684H4 chip fall into the same category, namely ESP8684 chip series. ESP8684 integrates a rich set of peripherals including UART, I2C, LED PWM controller, general DMA controller, temperature sensor, and SAR ADC. Note: For more information on ESP8684, please refer toESP8684 Series Datasheet. Espressif Systems3 Submit Documentation Feedback ESP8684-WROOM-02UC Datasheet v0.5 Contents Contents 1 Module Overview2 1.1 Features2 1.2 Description2 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-IDF8 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 Related Documentation and Resources18 Revision History19 Espressif Systems4 Submit Documentation Feedback ESP8684-WROOM-02UC Datasheet v0.5 2 Pin Definitions 2Pin Definitions 2.1Pin Layout The pin diagram below shows the approximate location of pins on the module. 1 2 3 4 5 6 7 8 9 3V3 EN IO4 IO5 IO6 IO7 IO8 IO9 GND 18 17 16 15 14 13 12 11 10 IO0 IO1 IO2 IO3 IO18 NC TXD RXD IO10 19:GND GND Figure 1: Pin Layout (Top View) 2.2Pin Description The module has 19 pins. See pin definitions in Table2. For peripheral pin configurations, please refer toESP8684 Series Datasheet. Table 2: Pin Definitions NameNo.Type 1 Function 3V31PPower supply EN2I High: on, enables the chip. Low: off, the chip powers off. Note: Do not leave the CHIP_EN pin floating. IO43I/O/TGPIO4, ADC1_CH4, FSPIHD, MTMS IO54I/O/TGPIO5, FSPIWP, MTDI IO65I/O/TGPIO6, FSPICLK, MTCK IO76I/O/TGPIO7, FSPID, MTDO IO87I/O/T GPIO8 This pin is internally pulled high. IO98I/O/TGPIO9 Cont’d on next page Espressif Systems5 Submit Documentation Feedback ESP8684-WROOM-02UC Datasheet v0.5 2 Pin Definitions Table 2 – cont’d from previous page NameNo.Type 1 Function GND9PGround IO1010I/O/TGPIO10, FSPICS0 RXD11I/O/TGPIO19, U0RXD TXD12I/O/TGPIO20, U0TXD NC13—NC IO1814I/O/TGPIO18 IO315I/O/TGPIO3, ADC1_CH3 IO216I/O/TGPIO2, ADC1_CH2, FSPIQ IO117I/O/TGPIO1, ADC1_CH1 IO018I/O/TGPIO0, ADC1_CH0 GND19PGround 1 P: power supply; I: input; O: output; T: high impedance. Espressif Systems6 Submit Documentation Feedback ESP8684-WROOM-02UC Datasheet v0.5 3 Get Started 3Get Started 3.1What You Need To develop applications for module you need: •1 x ESP8684-WROOM-02UC •1 x Espressif RF testing board •1 x USB-to-Serial board •1 x Micro-USB cable •1 x PC running Linux In this user guide, we take Linux operating system as an example. For more information about the configuration on Windows and macOS, please refer toESP-IDF Programming Guide. 3.2Hardware Connection 1.Solder the ESP8684-WROOM-02UC module to the RF testing board as shown in Figure2. Figure 2: Hardware Connection 2.Connect the RF testing board to the USB-to-Serial board via TXD, RXD, and GND. 3.Connect the USB-to-Serial board to the PC. 4.Connect the RF testing board to the PC or a power adapter to enable 5 V power supply, via the Micro-USB cable. 5.During download, connect IO0 to GND via a jumper. Then, turn ”ON” the testing board. 6.Download firmware into flash. For details, see the sections below. Espressif Systems7 Submit Documentation Feedback ESP8684-WROOM-02UC D…

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(Insertcompanyletterhead) FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:March21,2023 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD,(“theapplicant”)certifiesthattheequipment[FCCID: 2AC7Z-ESP868402UC]forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfromreceiving anequipmentauthorizationpursuanttosection2.903oftheFCCrules. ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD,(“theapplicant”)certifiesthat,asofthedateofthefilingofthe application,theapplicantisnotidentifiedontheCoveredList(asaspecificallynamedentityorany ofitssubsidiariesoraffiliates)asanentityproducing“covered”equipment. Sincerely, ________________________ Name:MiaZhou Title:CertificationManager E-mail:[email protected]

(Insertcompanyletterhead) FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Subject:CertificationdesignatingaU.S.agentforserviceofprocesspursuanttoPart2.911(d)(7) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD,2AC7Z(“theapplicant”)certifiesthat,asofthedateofthe filingofapplication,[GridConnect,Inc.](“theagent”)isdesignatedastheU.S.agentforthepurposeof acceptingserviceofprocessonbehalfoftheapplicant. ThephysicalU.S.addressandemailforthedesignatedagentare: PhysicalU.S.address:[1630W.DiehlRoad,Naperville,IL60563] Email:[[email protected]] TheapplicantacceptstomaintainanagentforserviceofprocessintheUnitedStatesfornolessthanoneyear aftereitherthegranteehaspermanentlyterminatedallmarketingandimportationoftheapplicableequipment withintheU.S.,ortheconclusionofanyCommission-relatedadministrativeorjudicialproceedinginvolvingthe equipment,whicheverislater. Theagentacceptsthedesignationby(theapplicant)astheU.S.agenttoacceptserviceofprocessincludes, butisnotlimitedto,deliveryofanycorrespondence,notices,orders,decisions,andrequirementsof administrative,legal,orjudicialprocessrelatedtoCommissionproceedings. SignedbytheApplicantSignedbytheAgent(ifdifferentfromtheApplicant) Name:MiaZhouName:M.B.Justice Title:CertificationManagerTitle:President Email:[email protected]:[email protected] Date:March21,2023Date:March21,2023

ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD Date:April3,2023 FederalCommunicationsCommission OfficeofEngineeringandTechnologyLaboratoryDivision 7435OaklandMillsRd ColumbiaMD21046-1609 Subject:RequestforConfidentiality FCCID:2AC7Z-ESP868402UC 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:April3,2023 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-ESP868402UC Ifyouhaveanyacknowledgementandresponse,pleasesendittoSportonInternationalInc. directly. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehavemybestattention. Sincerelyyours, ContactPerson:MiaZhou E-mail:[email protected]

Applicant/GranteeESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FCCID:2AC7Z-ESP868402UC 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.: EP310905 Brand Name: ESPRESSIF / Model Name: ESP8684-WROOM-02UC Sporton International Inc. (Kunshan) Page Number : 1 of 5 TEL : +86-512-57900158 Report Issued Date : Mar. 17, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID : 2AC7Z-ESP868402UC 720510 1. External Photograph of EUT Photographs of EUT Report No.: EP310905 Brand Name: ESPRESSIF / Model Name: ESP8684-WROOM-02UC Sporton International Inc. (Kunshan) Page Number : 2 of 5 TEL : +86-512-57900158 Report Issued Date : Mar. 17, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID : 2AC7Z-ESP868402UC

Label location: It’s on the shield

ESPRESSIFSYSTEMS (SHANGHAI)CO.,LTD

Photographs of EUT Report No.: EP310905 Brand Name: ESPRESSIF / Model Name: ESP8684-WROOM-02UC Sporton International Inc. (Kunshan) Page Number : 3 of 5 TEL : +86-512-57900158 Report Issued Date : Mar. 17, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID : 2AC7Z-ESP868402UC 720510 2. Internal Photograph of EUT Photographs of EUT Report No.: EP310905 Brand Name: ESPRESSIF / Model Name: ESP8684-WROOM-02UC Sporton International Inc. (Kunshan) Page Number : 4 of 5 TEL : +86-512-57900158 Report Issued Date : Mar. 17, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID : 2AC7Z-ESP868402UC Photographs of EUT Report No.: EP310905 Brand Name: ESPRESSIF / Model Name: ESP8684-WROOM-02UC Sporton International Inc. (Kunshan) Page Number : 5 of 5 TEL : +86-512-57900158 Report Issued Date : Mar. 17, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID : 2AC7Z-ESP868402UC

Sporton International Inc. (Kunshan) Page Number : 1 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 RF Exposure Evaluation Report APPLICANT : Espressif Systems (Shanghai) Co.,Ltd. EQUIPMENT : 2.4GHz Wi-Fi & BT IoT Module BRAND NAME : ESPRESSIF MODEL NAME : ESP8684-WROOM-02UC FCC ID : 2AC7Z-ESP868402UC STANDARD : 47 CFR Part 2.1091 The product evaluation date was started from Mar. 09, 2023 and completed on Mar. 09, 2023. We, Sporton International Inc. (Kunshan), would like to declare that the device has been evaluated in accordance with 47 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 : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 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 : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA310905 Rev. 01 Initial issue of report. Mar. 23, 2023 Sporton International Inc. (Kunshan) Page Number : 4 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 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 : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 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-WROOM-02UC FCC ID 2AC7Z-ESP868402UC 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 WLAN2.4GHz/Bluetooth: 1.57 dBi Antenna Type WLAN/Bluetooth: Glue stick antenna HW Version V1.0 SW Version v1.1.3.4 EUT Stage Identical Prototype Remark: 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 : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 3. Maximum RF average output tune up power among production units <2.4GHz WLAN > Mode Maximum Average Power (dBm) 2.4GHz 802.11b 18.00 802.11g 20.00 802.11n-HT20 19.00 <Bluetooth> Mode Maximum Average Power (dBm) Bluetooth LE 16.00 Sporton International Inc. (Kunshan) Page Number : 7 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Mar. 23, 2023 FCC ID : 2AC7Z-ESP868402UC Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310905 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 calcula…

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上海德门信息技术有限公司 1 Date04/12/2023VersionNo.C 上海德门信息技术有限公司 SHANGHAIDEMANINFORMATIONTECHNOLOGYCO.,LTD. 产品规格书 PRODUCTSPECIFICATION 客户 Customer 客户编码 Customer’spartnumber 产品料号 ProductMaterialCode TFPD05H09170011 发行日期 IssueDate 2023-4-12 发行版本 ReleaseVersion C 作者 Author 汪龙 ManufacturingbyShanghaiDemenElectronicsTechnologyCo.,Ltd Address： ShunluoIndustrialPark,GuanlanTown,LonghuaDistrict, Date12/07/2022VersionNo.B 上海德门信息技术有限公司 2 1产品技术指标（PRODUCTTECHNICALSPECIFICATION） 电性能指标ElectricalSpecifications 频率范围FrequencyRange（MHz）2400-2500 最大功率Maxpower(W)1 频带宽度Bandwidth（MHz）100 输入阻抗InputImpendence（Ω）50 电压驻波比VSWR＜2.0 增益Gain（dBi）＞1.0 极化形式PolarizationType垂直极化Vertical 方向性Directionality全向Omnidirectional 机械指标MechanicalSpecifications 外部尺寸ExternalDimensions(L×W) (mm) 108×10 连接方式ConnectionModeSMA 工作温度OperatinTemp（°C）-30～65 储存温度StoringTemp(°C)-30～65 外壳颜色RadomeColor黑色Black 天线类型Antennatype胶棒天线Gluestickantenna Date12/07/2022VersionNo.B 上海德门信息技术有限公司 3 2产品电性能参数（PRODUCTELECTRICALPERFORMANCEPARAMETER） 2.1产品图片（Productpicture） 2.2效率、增益（Efficiency/Gain） Freq. （MHz） Effi(%) Gain (dBi) 2400 63.150.71 2410 64.760.90 2420 65.891.15 2430 66.881.32 2440 67.471.40 2450 65.661.38 2460 65.131.37 2470 66.351.57 2480 66.761.57 2490 65.061.52 2500 64.881.51 Avg.65.631.30 Date12/07/2022VersionNo.B 上海德门信息技术有限公司 4 Testinstruments：GeneralTestRZ1800 Calibrationdate:2022.11.21 Date12/07/2022VersionNo.B 上海德门信息技术有限公司 5 2.3驻波比(VSWR)&反射损耗(ReturnLoss)&史密斯图(SmithChart) Date12/07/2022VersionNo.B 上海德门信息技术有限公司 6 Testinstruments：AgilentE5071C Calibrationdate:2022.8.12 Date12/07/2022VersionNo.B 上海德门信息技术有限公司 7 2.4方向性图（DirectivityDiagram） XY YZ XZ Date12/07/2022VersionNo.B 上海德门信息技术有限公司 8 Testinstruments：GeneralTestRZ1800 Calibrationdate:2022.11.21

Sporton International Inc. (Kunshan) Page Number : 1 of 49 TEL : +86-512-57900158 Report Issued Date : Mar. 08, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID: 2AC7Z-ESP868402UC Report Template No.: BU5-FR15CBT5.0 Version 2.0 FCC RF Test Report Report No. : FR310905A FCC RF Test Report APPLICANT : Espressif Systems (Shanghai) Co.,Ltd. EQUIPMENT : 2.4GHz Wi-Fi & BT IoT Module BRAND NAME : ESPRESSIF MODEL NAME : ESP8684-WROOM-02UC FCC ID : 2AC7Z-ESP868402UC STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Feb. 25, 2023 ~ Mar. 16, 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 49 TEL : +86-512-57900158 Report Issued Date : Mar. 08, 2023 FAX : +86-512-57900958 Report Version : Rev. 01 FCC ID: 2AC7Z-ESP868402UC Report Template No.: BU5-FR15CBT5.0 Version 2.0 FCC RF Test Report Report No. : FR310905A 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 ............................................................................................................ 20 3.3 Power Spectral Density Measurement ............................................................................................ 21 3.4 Conducted Band Edges and Spurious Emission Measurement ..................................................... 30 3.5 Radiated Band Edges and Spurious Emission Measurement ........................................................ 41 3.6 AC Conducted Emission Measurement........................................................................................... 45 3.7 Antenna Requirements .................................................................................................................... 47 4 LIST OF MEASURING EQUIPMENT ...............................................................…

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