2AC7Z-ESP8684072.4GHz Wi-Fi & BT IoT Module

ESP8684-WROOM-07 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 2 MB/4 MB flash in chip package 3 GPIOs Monopole antenna ESP8684-WROOM-07 Version 0.5 Espressif Systems Copyright © 2024 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-07 Series Comparison) •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 Bluetooth ® •Bluetooth LE: Bluetooth 5 •High power mode •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, general-purpose timers, watchdog timers Note: * Please refer toESP8684 Series Datasheetfor de- tailed information about the module peripherals. Integrated Components on Module •40 MHz crystal oscillator Antenna Options •Monopole antenna Operating Conditions •Operating voltage/Power supply: 3.0~3.6 V •Operating ambient temperature: –40~105 °C 1.2Description ESP8684-WROOM-07 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 Espressif Systems2 Submit Documentation Feedback ESP8684-WROOM-07 User Manual v 0.5 1 Module Overview electronics, etc. ESP8684-WROOM-07 can be vertically soldered to a PCB board via wave soldering and the module has 3 available GPIOs. ESP8684-WROOM-07 can be connected to an external monopole antenna. The series comparison for ESP8684-WROOM-07 is as follows: Table 1: ESP8684-WROOM-07 Series Comparison Ambient Temp. 1 Size Ordering CodeSiP Flash (°C)(mm) ESP8684-WROOM-07-H22 MB –40 ~1058.5 × 12.7 × 2.6 ESP8684-WROOM-07-H44 MB 1 Ambient temperature specifies the recommended temperature range of the environment immediately outside the Espressif module. 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 chip, please refer toESP8684 Series Datasheet. Espressif Systems3 Submit Documentation Feedback ESP8684-WROOM-07 User Manual v 0.5 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-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 Related Documentation and Resources19 Revision History20 Espressif Systems4 Submit Documentation Feedback ESP8684-WROOM-07 User Manual v 0.5 2 Pin Definitions 2Pin Definitions 2.1Pin Layout The pin diagram below shows the approximate location of pins on the module. Pin Layout (Top View) 1 ANT 35 IO5IO10 Pin Layout (Bottom View) 6 4 2 3V3 IO4GND 7 8 9 10 IO9 EN RX TX Figure 1: Pin Layout (Top View) 2.2Pin Description The module has 6 pins. See pin definitions in Table2Pin Definitions. For peripheral pin configurations, please refer toESP8684 Series Datasheet. Table 2: Pin Definitions NameNo.Type 1 Function ANT1-Antenna GND2PGround IO53I/O/TMTDI, GPIO5, FSPIWP, LED PWM IO44I/O/TMTMS, GPIO4, ADC1_CH4, FSPIHD, LED PWM IO105I/O/TGPIO10, FSPICS0, LED PWM 3V36PPower supply Table 3: Test Point Definitions NameNo.Type 1 Function IO97I/O/TGPIO9 EN8I High: on, enables the chip. Low: off, the chip powers off. Default: internally pulled-up. RX9I/O/TU0RXD, GPIO19 Cont’d on next page Espressif Systems5 Submit Documentation Feedback ESP8684-WROOM-07 User Manual v 0.5 2 Pin Definitions Table 3 – cont’d from previous page NameNo.Type 1 Function TX10I/O/TU0TXD, GPIO20 1 P: power supply; I: input; O: output; T: high impedance. Note: IO0, IO1, IO3, IO5/MTDI pins have low-level glitches during chip power up. See details in section General Purpose Input / Output Interface (GPIO) ofESP8684 Series Datasheet. Espressif Systems6 Submit Documentation Feedback ESP8684-WROOM-07 User Manual v 0.5 3 Get Started 3Get Started 3.1What You Need To develop applications for module you need: •1 x ESP8684-WROOM-07 •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-IDFProgrammingGuideforESP8684. 3.2Hardware Connection 1.Solder the ESP8684-WROOM-07 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. Espressif Systems7 Submit Documentation Feedback …

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(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 FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:January22,2024 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthattheequipmentFCCID:2AC7Z-ESP868405, FCCID:2AC7Z-ESP868407forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthat,asofthedateofthefilingoftheapplication,the applicantisnotidentifiedontheCoveredList(asaspecificallynamedentityoranyofitssubsidiariesor affiliates)asanentityproducing“covered”equipment. Sincerely, ________________________ Name:MiaZhou E-mail:[email protected]

ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD Date:January22,2024 FederalCommunicationsCommission OfficeofEngineeringandTechnologyLaboratoryDivision 7435OaklandMillsRd ColumbiaMD21046-1609 Subject:RequestforConfidentiality FCCID:2AC7Z-ESP868405 FCCID:2AC7Z-ESP868407 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:January22,2024 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-ESP868405 FCCID:2AC7Z-ESP868407 Ifyouhaveanyacknowledgementandresponse,pleasesendittoSportonInternationalInc. directly. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehavemybestattention. Sincerelyyours, ContactPerson:MiaZhou E-mail:[email protected]

Applicant/GranteeESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FCCID:2AC7Z-ESP868407 Section15.212ModularTransmitters RequestforModularApprovalRequestforLimitedModularApproval RequirementsEUTConditionsComply(Y/N) SingleModularApprovalRequirements 1Theradioelementsofthemodular transmittermusthavetheirown shielding.Thephysicalcrystaland tuningcapacitorsmaybelocated externaltotheshieldedradioelements. Theradioportionofthismoduleisnot shielded,pleaseseeexhibitionexternal photos. N 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. TheModulewillputlabelinuser manualsincelimitedspace,andthe instructiononthelabelingruleofthe endproducthasbeenstatedintheUser Manualofthismodule.Pleasereferto theLabeldeclarationandUserManual exhibition. 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.: EP310907 Brand Name: ESPRESSIF; Model Name: ESP8684-WROOM-07 Sporton International Inc. (Kunshan) Page Number : 1 of 4 TEL : 86-0512-5790-0158 Report Issued Date : Jan. 31, 2024 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 720510 1. External Photograph of EUT Photographs of EUT Report No.: EP310907 Brand Name: ESPRESSIF; Model Name: ESP8684-WROOM-07 Sporton International Inc. (Kunshan) Page Number : 2 of 4 TEL : 86-0512-5790-0158 Report Issued Date : Jan. 31, 2024 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01

EspressifSystems(Shanghai)Co.,Ltd. Suite204,Block2,690BiboRoad,ZhangJiangHi-TechPark,Shanghai,China To FCC ThecompanyEspressifSystems(Shanghai)Co.,Ltd.,locatedatSuite204,Block2,690 BiboRoad,ZhangJiangHi-TechPark,Shanghai,China,wouldliketorequestthe authorizationforthisAgencytoputtheFCCcertificationID:2AC7Z-ESP868407inthe User’sManual.ThisrequestisduetotheproductmodelESP8684-WROOM-07doesnot haveenoughspacetoputit. Thankyoufortheattention. Trulyyours, _____________________________ SignatureoftheResponsible Name:MiaZhou Position:Certificationengineer

Photographs of EUT Report No.: EP310907 Brand Name: ESPRESSIF; Model Name: ESP8684-WROOM-07 Sporton International Inc. (Kunshan) Page Number : 3 of 4 TEL : 86-0512-5790-0158 Report Issued Date : Jan. 31, 2024 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 720510 2. Internal Photograph of EUT Photographs of EUT Report No.: EP310907 Brand Name: ESPRESSIF; Model Name: ESP8684-WROOM-07 Sporton International Inc. (Kunshan) Page Number : 4 of 4 TEL : 86-0512-5790-0158 Report Issued Date : Jan. 31, 2024 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 BT/WLAN Antenna

Sporton International Inc. (Kunshan) Page Number : 1 of 8 TEL : +86-512-57900158 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 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-07 FCC ID : 2AC7Z-ESP868407 STANDARD : 47 CFR Part 2.1091 The product evaluation date was started from May 30, 2023 and completed on May 30, 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 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 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 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA310907 Rev. 01 Initial issue of report. Oct. 12, 2023 Sporton International Inc. (Kunshan) Page Number : 4 of 8 TEL : +86-512-57900158 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 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 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 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 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-07 FCC ID 2AC7Z-ESP868407 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: 2.33 dBi Antenna Type WLAN/Bluetooth: External 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 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 3. Maximum RF average output tune up power among production units <2.4GHz WLAN > Mode Maximum Average Power (dBm) 2.4GHz 802.11b 19.00 802.11g 19.00 802.11n-HT20 17.00 <Bluetooth> Mode Maximum Average Power (dBm) Bluetooth LE 18.00 Sporton International Inc. (Kunshan) Page Number : 7 of 8 TEL : +86-512-57900158 Report Issued Date : Oct. 12, 2023 FCC ID : 2AC7Z-ESP868407 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA310907 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 calculate the Power Density: = Where: S = Power Density P = Output Power at Antenna Terminals G = Gain of Transmit Antenna (linear gain) R = Distance from Transmitting Antenna Sporton International Inc. (Kun…

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Sporton International Inc. (Kunshan) Page Number : 1 of 50 TEL : +86-512-57900158 Report Issued Date : Jan. 04, 2024 FCC ID: 2AC7Z-ESP868407 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR310907A 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-07 FCC ID : 2AC7Z-ESP868407 STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Apr. 21, 2023 ~ Dec. 21, 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 50 TEL : +86-512-57900158 Report Issued Date : Jan. 04, 2024 FCC ID: 2AC7Z-ESP868407 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR310907A 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 ........................................................ 42 3.6 AC Conducted Emission Measurement........................................................................................... 46 3.7 Antenna Requirements .................................................................................................................... 48 4 LIST OF MEASURING EQUIPMENT ........................................................................................................ 49 5 MEASUREMENT UNCERTAINTY ............................................................................................................ 50 APPENDIX A. CONDUCTED TEST RESULTS APPENDIX B. AC CONDUCTED EMISSION TEST RESULT APPENDIX C. RADIATED SPURIOUS EMISSION APPENDIX D. DUTY CYCLE PLOTS APPENDIX E. SETUP PHOTOGRAPHS Sporton International Inc. (Kunshan) Page Number : 3 of 50 TEL : +86-512-57900158 Report Issued Date : Jan. 04, 2024 FCC ID: 2AC7Z-ESP868407 Report Version : Rev. 01 Report Template No.: BU5-FR15CBT4.0 Version 2.0 FCC RF Test Report Report No. : FR310907A REVISION HISTORY REPORT NO. VERSION DESCRIPTION ISSUED DATE FR310907A Rev. 01 Initial issue of report Jan. 04, 2024 Sporton International Inc. (Kunshan) Page Number : 4 of …

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Sporton International Inc. (Kunshan) Page Number : 1 of 33 TEL : +86-512-57900158 Report Issued Date : Jan. 04, 2024 FCC ID: 2AC7Z-ESP868407 Report Version : Rev. 01 Report Template No.: BU5-FR15CWL AC MA Version 2.0 FCC RF Test Report Report No. : FR310907B 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-07 FCC ID : 2AC7Z-ESP868407 STANDARD : FCC Part 15 Subpart C §15.247 CLASSIFICATION : (DTS) Digital Transmission System TEST DATE(S) : Apr. 21, 2023 ~ Dec. 19, 2023 We, Sporton International Inc. (Kunshan), would like to declar…

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