2AC7Z-ESPC6WROOM12.4GHz Wi-Fi & BT IoT Module

ESP32-C6-WROOM-1 User Manual Module that supports 2.4 GHz Wi-Fi 6 (802.11 ax), Bluetooth ® 5 (LE), Zigbee and Thread (802.15.4) Built around ESP32-C6 series of SoCs, 32-bit RISC-V single-core microprocessor Flash up to 16 MB 23 GPIOs, rich set of peripherals On-board PCB antenna ESP32-C6-WROOM-1 Pre-release v1.0 Espressif Systems Copyright © 2023 www.espressif.com 1 Module Overview 1Module Overview 1.1Features CPU and On-Chip Memory •ESP32-C6 embedded, 32-bit RISC-V single-core microprocessor, up to 160 MHz •ROM: 320 KB •HP SRAM: 512 KB •LP SRAM: 16 KB Wi-Fi •1T1R in 2.4 GHz band •Operating frequency: 2412~2462 MHz •IEEE 802.11ax-compliant –20 MHz-only non-AP mode –MCS0 ~MCS9 –Uplink and downlink OFDMA, especially suitable for simultaneous connections in high-density environments –Downlink MU-MIMO (multi-user, multiple input, multiple output) to increase network capacity –Beamformee that improves signal quality –Channel quality indication (CQI) –DCM (dual carrier modulation) to improve link robustness –Spatial reuse to maximize parallel transmissions –Target wake time (TWT) that optimizes power saving mechanisms •Fully compatible with IEEE 802.11b/g/n protocol –20 MHz and 40 MHz bandwidth –Data rate up to 150 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) –4 × virtual Wi-Fi interfaces –Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode Note that when ESP32-C6 scans in Station mode, the SoftAP channel will change along with the Station channel –802.11mc FTM Bluetooth ® •Bluetooth LE: Bluetooth 5.3 certified •Bluetooth mesh •High power mode •Speed: 1 Mbps, 2 Mbps •Advertising extensions •Multiple advertisement sets •Channel selection algorithm #2 •LE power control •Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna IEEE 802.15.4 •Compliant with IEEE 802.15.4-2015 protocol •OQPSK PHY in 2.4 GHz band •Data rate: 250 Kbps •Thread 1.3 •Zigbee 3.0 Espressif Systems2 Submit Documentation Feedback ESP32-C6-WROOM-1 Datasheet v1.0 1 Module Overview Peripherals •GPIO, SPI, parallel IO interface, UART, I2C, I2S, RMT (TX/RX), pulse counter, LED PWM, USB Serial/JTAG controller, MCPWM, SDIO2.0 slave controller, GDMA, TWAI ® controller, on-chip debug functionality via JTAG, event task matrix, ADC, temperature sensor, general-purpose timers, watchdog timers, etc. Integrated Components on Module •40 MHz crystal oscillator •SPI flash Antenna Options •On-board PCB antenna Operating Conditions •Operating voltage/Power supply: 3.0~3.6 V •Operating ambient temperature: –85 °C version module: –40~85 °C –105 °C version module: –40~105 °C 1.2Description ESP32-C6-WROOM-1 is a general-purpose Wi-Fi, IEEE 802.15.4, and Bluetooth LE module. The rich set of peripherals and high performance make the module an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc. ESP32-C6-WROOM-1 module features an external SPI flash. The ordering information for ESP32-C6-WROOM-1 is as follows: Table 1: ESP32-C6-WROOM-1 Ordering Information Ambient Temp.Size Ordering CodeFlash (°C)(mm) ESP32-C6-WROOM-1-N4 4 MB (Quad SPI) –40∼85 18.0 × 25.5 × 3.1 ESP32-C6-WROOM-1-H4–40∼105 ESP32-C6-WROOM-1-N88 MB (Quad SPI) –40∼85 ESP32-C6-WROOM-1-N1616 MB (Quad SPI) At the core of this module is ESP32-C6, a 32-bit RISC-V single-core processor. ESP32-C6 integrates a rich set of peripherals including SPI, parallel IO interface, UART, I2C, I2S, RMT (TX/RX), LED PWM, USB Serial/JTAG controller, MCPWM, SDIO2.0 slave controller, GDMA, TWAI ® controller, on-chip debug functionality via JTAG, event task matrix, as well as up to 23 GPIOs, etc. Note: * For more information on ESP32-C6, please refer toESP32-C6 Series Datasheet. Espressif Systems3 Submit Documentation Feedback ESP32-C6-WROOM-1 Datasheet v1.0 Contents Contents 1 Module Overview2 1.1 Features2 1.2 Description3 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 Industry Canada Statement18 6 Related Documentation and Resources21 Revision History22 Espressif Systems4 Submit Documentation Feedback ESP32-C6-WROOM-1 Datasheet v1.0 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) GND 3V3 EN IO4 IO5 IO6 IO7 IO13 28 27 26 25 24 23 22 21 20 19 18 17 16 15 GND IO2 IO3 TXD0 RXD0 IO15 NC IO23 IO22 IO21 IO20 IO19 IO18 IO9 29 GND Keepout Zone GND GNDGNDGND GND GNDGNDGND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 IO0 IO1 IO8 IO10 IO12 IO11 Figure 1: Pin Layout (Top View) 2.2Pin Description The module has 29 pins. See pin definitions in Table2Pin Definitions. For peripheral pin configurations, please refer toESP32-C6 Series Datasheet. Espressif Systems5 Submit Documentation Feedback ESP32-C6-WROOM-1 Datasheet v1.0 2 Pin Definitions Table 2: Pin Definitions NameNo.Type 1 Function GND1PGround 3V32PPower supply EN3I High: on, enables the chip. Low: off, the chip powers off. Note: Do not leave the EN pin floating. IO44I/O/TMTMS, GPIO4, LP_GPIO4, LP_UART_RXD, ADC1_CH4, FSPIHD IO55I/O/TMTDI, GPIO5, LP_GPIO5, LP_UART_TXD, ADC1_CH5, FSPIWP IO66I/O/TMTCK, GPIO6, LP_GPIO6, LP_I2C_SDA, ADC1_CH6, FSPICLK IO77I/O/TMTDO, GPIO7, LP_GPIO7, LP_I2C_SCL, FSPID IO08I/O/TGPIO0, XTAL_32K_P, LP_GPIO0, LP_UART_DTRN, ADC1_CH0 IO19I/O/TGPIO1, XTAL_32K_N, LP_GPIO1, LP_UART_DSRN, ADC1_CH1 IO810I/O/TGPIO8 IO1011I/O/TGPIO10 IO1112I/O/TGPIO11 IO1213I/O/TGPIO12, USB_D- IO1314I/O/TGPIO13, USB_D+ I…

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ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:August30,2023 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthattheequipmentFCCID:2AC7Z-ESPC6MINI1, FCCID:2AC7Z-ESPC6WROOM1forwhichauthorizationissoughtisnot“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 FederalCommunicationsCommission 7435OaklandMillsRoad ColumbiaMD21046 Date:August30,2023 Subject:Certificationsconcerning“covered”equipmentpursuanttoPart2.911(d)(5)(i)and(ii) Towhomitmayconcern, ESPRESSIFSYSTEMS(SHANGHAI)CO.,LTDcertifiesthattheequipmentFCCID:2AC7Z-ESPC6MINI1, FCCID:2AC7Z-ESPC6WROOM1forwhichauthorizationissoughtisnot“covered”equipmentprohibitedfrom receivinganequipmentauthorizationpursuanttosection2.903oftheFCCrules. 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:August30,2023 FederalCommunicationsCommission OfficeofEngineeringandTechnologyLaboratoryDivision 7435OaklandMillsRd ColumbiaMD21046-1609 Subject:RequestforConfidentiality FCCID:2AC7Z-ESPC6MINI1 FCCID:2AC7Z-ESPC6WROOM1 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:August30,2023 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-ESPC6MINI1 FCCID:2AC7Z-ESPC6WROOM1 Ifyouhaveanyacknowledgementandresponse,pleasesendittoSportonInternationalInc. directly. Shouldyouhaveanyquestionsorcommentsregardingthismatter,pleasehavemybestattention. Sincerelyyours, ContactPerson:MiaZhou E-mail:[email protected]

Applicant/GranteeESPRESSIFSYSTEMS(SHANGHAI)CO.,LTD FCCID:2AC7Z-ESPC6MINI1 2AC7Z-ESPC6WROOM1 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 PleaserefertotheSetupPhoto exhibitionforthestand-alonetest configuration. Y thecaseofthemoduleandsupporting 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 TherequiredFCCrulehasbeenfulfilled andalltheinstructionsformaintaining compliancehavebeenclearlystatedin theUserManual. Y applicationforequipmentauthorization. 8Themodulartransmittermustcomply withanyapplicableRFexposure requirementsinitsfinalconfiguration. PleasereferexhibitionRFExposurefor thecomplianceofMPERFexposure rule. Y _________________________________ ContactPerson:MiaZhou E-mail:[email protected]

Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 1 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 720510 1. External Photograph of EUT Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 2 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 3 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 4 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 5 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 6 of 9 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01

Label location: It’s on the shield

Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 1 of 3 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 720510 2. Internal Photograph of EUT WLAN & Bluetooth LE & ZigBee & Thread Antenna Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 2 of 3 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 Photographs of EUT Report No.: EP330805A Brand Name: ESPRESSIF; Model Name: ESP32-C6-WROOM-1 Sporton International Inc. (Kunshan) Page Number : 3 of 3 TEL : 86-0512-5790-0158 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01

Sporton International Inc. (Kunshan) Page Number : 1 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 RF Exposure Evaluation Report APPLICANT : Espressif Systems (Shanghai) Co.,Ltd. EQUIPMENT : 2.4GHz Wi-Fi & BT IoT Module BRAND NAME : ESPRESSIF MODEL NAME : ESP32-C6-WROOM-1 FCC ID : 2AC7Z-ESPC6WROOM1 STANDARD : 47 CFR Part 2.1091 FCC KDB 447498 D01 v06 The product evaluation date was started from Aug. 16, 2023 and completed on Aug 29, 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 : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 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 : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 Revision History REPORT NO. VERSION DESCRIPTION ISSUED DATE FA330805 Rev. 01 Initial issue of report. Sep. 01, 2023 Sporton International Inc. (Kunshan) Page Number : 4 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report Issued Date : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 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 : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 2. Description of Equipment Under Test (EUT) Product Feature & Specification EUT Type 2.4GHz Wi-Fi & BT IoT Module Brand Name ESPRESSIF Model Name ESP32-C6-WROOM-1 FCC ID 2AC7Z-ESPC6WROOM1 Wireless Technology and Frequency Range WLAN 2.4GHz Band: 2412 MHz ~ 2462 MHz Bluetooth: 2402 MHz ~ 2480 MHz ZigBee/Thread: 2405 MHz ~ 2480 MHz Mode WLAN 2.4GHz 802.11b/g/n HT20/HT40 WLAN 2.4GHz 802.11ax HE20 Bluetooth LE ZigBee/Thread: O-QPSK Antenna Gain WLAN/Bluetooth: 3.26 dBi ZigBee/Thread: 3.26 dBi Antenna Type WLAN/Bluetooth: PCB Antenna ZigBee/Thread: PCB Antenna HW Version V1.2 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. 2. Since ZigBee mode and Thread mode support exactly the same frequency span, and Thread mode power level is less than ZigBee mode power level, so only ZigBee mode was chosen to perform standalone power density calculation. 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 : Sep. 01, 2023 FCC ID : 2AC7Z-ESPC6WROOM1 Report Version : Rev. 01 RF Exposure Evaluation Report Report No. : FA330805 3. Maximum RF average output tune up power among production units <2.4GHz WLAN > Mode Maximum Average Power (dBm) 2.4GHz 802.11b 22.0 802.11g 20.0 802.11n-HT20 19.0 802.11n-HT40 18.0 802.11ax-HE20 19.0 <Bluetooth> Mode Maximum Average power(dBm) Bluetooth LE 20.0 <ZigBee/Thread> Mode Maximum Average power(dBm) 2.4GHz ZigBee 20.00 Thread 6.00 Sporton International Inc. (Kunshan) Page Number : 7 of 8 TEL : 86-512-57900158 / FAX : 86-512-57900958 Report …

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OTA TEST REPORT TA Technology (Shanghai) Co., Ltd. tested the above equipment in accordance with the requirements in ANSI/IEEE Std 149-2008. The test results show that the equipment tested is capable of demonstrating compliance with the requirements as documented in this report. Prepared by: Peng Tao Approved by: Kai Xu TA Technology (Shanghai) Co., Ltd. No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, China TEL: +86‐021‐50791141/2/3 FAX: +86‐021‐50791141/2/3‐8000 Applicant Espressif System (Shanghai) Co.,Ltd Product ESP32-C3-WROOM-02 Model ESP-ANT B Report No. Y2102A0260-T3 Issue Date March 9, 2021 OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 2 of 13 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 .................................................................................................... 4 2. General Description of Equipment under Test ............................................................................... 5 2.1. Applicant and Manufacturer Information ............................................................................ 5 2.2. General information ........................................................................................................... 5 2.3. Test Date ........................................................................................................................... 5 2.4. Receiving Date .................................................................................................................. 5 2.5. Applied Standards ............................................................................................................. 6 3. Test Conditions .............................................................................................................................. 7 3.1. Test Configuration ............................................................................................................. 7 3.2. Test Measurement ............................................................................................................. 7 4. Test Results ................................................................................................................................... 8 4.1. Gain and Efficiency ............................................................................................................ 8 5. Equipment List ............................................................................................................................... 9 ANNEX A 3-D Pattern Plots ................................................................................................................... 10 ANNEX B：The EUT Appearance and Test Configuration ...................................................................... 12 B.1 EUT Appearance ................................................................................................................... 12 B.2 Test Configuration ................................................................................................................. 13 OTA Test Report Report No: Y2102A0260-T3 TA Technology (Shanghai) Co., Ltd. TA-MB-04-008O P age 3 of 13 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: No.145, Jintang Rd, Tangzhen Industry Park, Pudong Shanghai, 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] OTA Test Report Report No:…

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