2ASYE-T-BEAM-S3T-BEAM-S3

        ! About This Guide This document is intended to help users set up the basic software development environment for developing applications using hardware based on the . Through a simple example, this document illustrates how to use ! , including the menu based configuration wizard, compiling the !  and firmware download to the ESP32 module. Release Notes DateVersionRelease notes     " #$ Table of Contents 1. Introduction 1 ............................................................................................................................. 1.1.  ....................................................................................................... ...1 1.2. !  1 ..................................................................................................................................... 1.3. Preparation 1 ................................................................................................................................. 2. Get Started 2 ............................................................................................................................. 2.1. %&#$!  !  '&$ ................................................. ..........................2 2.1.1. Install Prerequisites .......................................................................................................2 2.1.2. Toolchain Setup ............................................................................................................2 2.2. ($##  !  '&$ .......... . .................................... ..................... .....................3 2.3.Set up Path  .............................................................. .. ..............................3 .....................................................................................................................4 5 .................................................................................................................................. .......................................................................................... ...............................6  '   Connect )  %* + #$! ,- 7 ....................................................................................................................... 6.1. Build and Flash 7 .......................................................................................................................... 6.2. Monitor 8 ....................................................................................................................................... 7. SSC Command Reference 9 ..................................................................................................... 7.1. op 9 ............................................................................................................................................... 7.2. sta 9 .............................................................................................................................................. 7.3. ap 10 ............................................................................................................................................. 7.4. mac 10 .......................................................................................................................................... 7.5. dhcp 11 ......................................................................................................................................... 7.6. ip 11 .............................................................................................................................................. 7.7. reboot 12 ....................................................................................................................................... 7.8. ram 12...........................................................................................................................................    1. Introduction 1.Introduction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sers can develop applications in Windows/Linux/ MacOS based on   It is recommended to use 1!& . 1!& : has been used as an example in this document for illustration purposes. 1.3. Preparation  !.# $#-$ ' 0  !D • 0 #$!! &  1!&< 3 5  $- $ * • #-$  / #!  #-$ ' 0 • !  $ $## -$ 0( ' 0 $! -  $  #-$ • >E  $#  !. •  0 /$! #' $! $  -$/#  --    0 3# /121     2. Get …

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Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District, Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Attestation letter Dear Sir or Madam, Our product T-BEAM-S3, model: T-BEAM-S3, T-BEAM-S3(L76K GPS), FCC ID: 2ASYE-T-BEAM-S3, for marketing purpose, this product only supports BLE 1M&2M, 2.4G Wi-Fi(2412-2462MHz, 802.11 b/g/n20/n40 modes), Lora (915MHz).The other functions, bands and modes was disabled to use by manufacturer in the software, the end user has no capability to activate it. Sincerely, Signature: Yashon Zhang Product Manager

Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] CFR 47 §2.911(d)(5)(i) Attestation Letter Attestation Letter Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2ASYE-T-BEAM-S3 Shenzhen Xin Yuan Electronic Technology Co., Ltd. certifies that the equipment for which authorization is sought, is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature: Contact Person:Yashon Zhang Title: Product Manager

Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] CFR 47 §2.911 (d)(5)(ii) Attestation Letter Attestation Letter Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(ii) Filing FCC ID: 2ASYE-T-BEAM-S3 Shenzhen Xin Yuan Electronic Technology Co., Ltd. certifies that as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Signature: Contact Person: Yashon Zhang Title: Product Manager

U.S. AGENT LETTER OF ATTESTATION Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2ASYE-T-BEAM-S3 Shenzhen Xin Yuan Electronic Technology Co., Ltd. certifies that, as of the date of the filing of the application, Rokland LLC is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen Xin Yuan Electronic Technology Co., Ltd. accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. Rokland LLC accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Name: Rokland LLC Address: 2251 NW 41st St Ste 50 Gainesville, FL 32606 United States FRN: 0033683616 Tel.: +1 (352) 372-9902 Email: [email protected] Signed by (printed name): Mr Jason B Opdyke Signature: Applicant: Shenzhen Xin Yuan Electronic Technology Co., Ltd. Address: Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China FRN: 0028379253 Tel: +86 0755-83380665 Email: [email protected] Signed by (printed name): Yashon Zhang Signature: (p)

Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] QA-FR-170-B 7/29/2014 FCC Authorization Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, Shenzhen Xin Yuan Electronic Technology Co., Ltd., the undersigned, hereby authorizes Bay Area Compliance Laboratories Corp. (Shenzhen) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by Bay Area Compliance Laboratories Corp. (Shenzhen) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Yashon Zhang Product Manager

Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] FCC Confidential Authorization Date: 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2ASYE-T-BEAM-S3 In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Xin Yuan Electronic Technology Co., Ltd. hereby requests long-term confidential treatment of information accompanying this application as outlined below: • Block Diagram • Schematics • Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Yashon Zhang Product Manager

Shenzhen Xin Yuan Electronic Technology Co., Ltd. Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District,Shenzhen, Guangdong China Tel: +86 0755-83380665 Fax: +86 0755-83380665 Email: [email protected] Declaration Of Similarity 2024-05-15 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir or Madam: Shenzhen Xin Yuan Electronic Technology Co., Ltd., hereby declare that product name: T- BEAM-S3, FCC ID: 2ASYE-T-BEAM-S3, its serial model: T-BEAM-S3(L76K GPS) is electrically identical with the sa me circuit design, PCB layout, internal wiring, product functions, electromagnetic emissions and electromagnetic compatibility characteristics as Main model: T-BEAM-S3. A description of the differences between the main model and those that are declared similar are as follows: Description of models differences: Model GPS chip model T-BEAM-S3 Ublox MAX-M10S-00B T-BEAM-S3(L76K GPS) L76K Please contact me should there be need for any additional clarification or information. Best Regards, Signature Yashon Zhang Product Manager

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 1 of 6 EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS T-BEAM-S3 GPS ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 2 of 6 Lora ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 3 of 6 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 4 of 6 T-BEAM-S3(L76K GPS) GPS ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 5 of 6 Lora ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 6 of 6

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF EXHIBIT A - FCC ID LABEL AND LOCATION Model: T-BEAM-S3 FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Model: T-BEAM-S3(L76K GPS) FCC ID Label FCC ID Label Location Information The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925)

Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 1 of 7 EXHIBIT C - EUT INTERNAL PHOTOGRAPHS T-BEAM-S3 BLE/Wi-Fi ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 2 of 7 BLE/Wi-Fi ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 3 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 4 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 5 of 7 T-BEAM-S3(L76K GPS) BLE/Wi-Fi ANT Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 6 of 7 Bay Area Compliance Laboratories Corp. (Shenzhen) Project No.: SZ1240319-13904E-RF Page 7 of 7

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ1240319-13904E-RF-00A TR-EM-RF002 Page 13 of 105 Version 1.0 (2023/10/07) FCC §1.1307 (B) & §2.1091- MPE-BASED EXEMPTION Applicable Standard According to subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 Interim General RF Exposure Guidance MPE-Based Exemption: General frequency and separation-distance dependent MPE-based effective radiated power(ERP) thresholds are in Table B.1 [Table 1 of § 1.1307(b)(3)(i)(C)] to support an exemptionfrom further evaluation from 300 kHz through 100 GHz. R is the minimum separation distance in meters f = frequency in MHz Result Mode Frequency (MHz) Tune up conducted power # Antenna Gain # ERP Evaluation Distance (m) ERP Limit (mW) (dBm) (dBi)(dBd)(dBm)(mW) Lora 915 22.0 2.0 -0.15 21.85 153.11 0.2 468 BLE 2402-2480 -1.5 4.0 1.85 0.35 1.08 0.2 768 2.4G Wi-Fi 2412-2462 19.5 4.0 1.85 21.35 136.46 0.2 768 Note: 1. The tune up conducted power and antenna gain was declared by the applicant. 2. The Lora, BLE and 2.4G Wi-Fi cannot transmit at same time. 3. 0dBd=2.15dBi To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ1240319-13904E-RF-00B TR-EM-RF007 Page 12 of 39 Version 1.0 (2023/10/07) FCC §1.1307 (B) & §2.1091- MPE-BASED EXEMPTION Applicable Standard According to subpart 2.1091 systems operating under the provisions of this section shall be operated in a manner that ensures the public is not exposed to RF energy level in excess of the communication guidelines. According to KDB 447498 D04 Interim General RF Exposure Guidance MPE-Based Exemption: General frequency and separation-distance dependent MPE-based effective radiated power(ERP) thresholds are in Table B.1 [Table 1 of § 1.1307(b)(1)(i)(C)] to support an exemptionfrom further evaluation from 300 kHz through 100 GHz. R is the minimum separation distance in meters f = frequency in MHz Result Mode Frequency (MHz) Tune up conducted power # Antenna Gain # ERP Evaluation Distance (m) ERP Limit (mW) (dBm) (dBi)(dBd)(dBm)(mW) Lora 915 22.0 2.0 -0.15 21.85 153.11 0.2 468 BLE 2402-2480 -1.5 4.0 1.85 0.35 1.08 0.2 768 2.4G Wi-Fi 2412-2462 19.5 4.0 1.85 21.35 136.46 0.2 768 Note: 1. The tune up conducted power and antenna gain was declared by the applicant. 2. The Lora, BLE and 2.4G Wi-Fi cannot transmit at same time. 3. 0dBd=2.15dBi To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

OA-C09 Specifications OA-C09_V01 1 SMD Antenna Specifications OverAir ® SMD Antenna series are RoHS compliant PN: OA-C09 2.4 GHz ISM Band Antenna Add: 3404-3410, Block A, Tianxia Jinniu Plaza, No.8 Taoyuan Road, Nantou Street, Nanshan District, Shenzhen, Guangdong, China OA-C09 Specifications OA-C09_V01 2 Features 1. Small size SMD patch antenna with size only 5.5 X 1.2 X 1.2 mm. 2. Low energy loss, high antenna efficiency. 3. High stability under temperature and humidity changes. Structure 1:Antenna fixing pad, do not connect any signal 2: Antenna feed pad, connect RF signal pin Size Three ViewSymbol(mm) L5.5±0.2 w1.2±0.1 T1.2±0.1 a0.4±0.1 OA-C09 Specifications OA-C09_V01 3 Electrical Characteristics OA-C09Specification Working Frequency 2450±50MHz Initial frequency band(GHz) 3.0GHz Band Width >100MHz Impedance 50Ω Gain(dBi) 4（peak） VSWR <2 Operation Temperature -40°C~+95°C Power Capacity 3W Design dimension drawing OA-C09 Specifications OA-C09_V01 4 match device valueSeries 1inductance 3.0nh Shunt 1inductance 2.7nh Series 2inductance 3.6nh Antenna test on test board (board thickness 1.0mm) OA-C09 Specifications OA-C09_V01 5 Antenna S11 Characteristics Antenna VSWR Characteristics OA-C09 Specifications OA-C09_V01 6 Efficiency and Radiation Patterns Performance, radiation pattern, gain, etc. are based on the test board design. The specification characteristic test data of OA-C09 antenna is obtained based on the test PCB board size and the test direction shown in the figure below. Gain and Efficiency Bandwidth 2.4G-2.5GHz Peak Gain 4dBi Average Gain across the band 4.0dBi Gain Range across the band 3.59dBi~4dBi Peak Efficiency 62.5% Average Efficiency across the band 57.5% Efficiency Range across the band 51.3%~62.5% Theta @2.45 GHz Z Y X OA-C09 Specifications OA-C09_V01 7 Phi @2.45 GHz Total @2.45 GHz

Address:New Sun Industrial City, Tangxia Town, Dongguan City, China Document number 客户名称: Customer Specification For Approval : 供应商名称: Customer: Customer Code: Description:models Production: Zhou Structure: Zhou dates：2024.07.25 2DB-915 Black ShenZhen XinYuan Electronic Technology Dongguan Honghui Electronics Co. YLH100180 II. Product Parameters Product Test Parameters 产品名称(Name) 产品型号(Model Type) 电 性 能 指 标(Electrical Specifications) 频率范围(Frenquency Range) 极化方式（Polarization 915Mhz ） perpendicular 输入阻抗(Impedance) 50 Ω 辐射方向 all directions 驻波比（VSWR） ≦2 功率容量(Power) 50W 增益(Gain)带宽(Bandwidt 2dBi h 100MHz I. Product Pictures 2DB-915 Black Antenna III. S11（ VSWR 、 Return loss 、 Smith ）Data 2D-3D Orientation Chart III-I. Network Analyzer Report 机 械 指 标(Mechanical Specifications) 尺寸(Dimensions)天线颜色(Chassis Color 88±2MM ) black 连 接 器 型 号 (Connector) 引线长度(Cable Length SMA ) 天 线材 料(Chassis Material) ABS 工作温度 (Working Temperature) -40°C±85°C 存放温度 (Limit Temperature) -40°C±85°C III-II. 2D-3D Direction Map 0°C 90°C 90°C III-II. 2D-3D Direction Map 900MHz 915MHz 920MHz 2 SMA 7 / 7 Storage environment Test temperature, humidity, and barometric pressure without specifying as follows: 1. Temperature -30°C～+80°C. 2. Relative humidity of 45%-85 3. air pressure 86kpa-106kpa Normal High and low temperature test 5 cycles between 70°C and 40°C, followed by 1-2 hours under normal conditions to check the quality of the appearance. Normal Resistant to constant humidity and heat test Relative humidity 95±3%, test temperature: 40°C. Continuously 2H after the action, the test piece is taken out within 5min to determine the electrical properties, the test piece in the normal conditions of 1-2H, check the appearance of quality Normal Vibration test Frequency range 10-55Hz, displacement amplitude: 0.35MM, acceleration amplitude: 50.0M/S, frequency sweep cycle times: 30 times Normal Drop test 3 free falls on mutually perpendicular axes at a height of 1M. Normal

Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF002 Page 1 of 105 Version 1.0 (2023/10/07) TEST REPORT Applicant Name: Shenzhen Xin Yuan Electronic Technology Co., Ltd. Address: Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District, Shenzhen, Guangdong China Report Number: SZ1240319-13904E-RF-00A FCC ID: 2ASYE-T-BEAM-S3 Test Standard (s) FCC PART 15.247 Sample Description Product Type: T-BEAM-S3 Model No.: T-BEAM-S3 Multiple Model(s) No.: T-BEAM-S3(L76K GPS) Trade Mark: LILYGO Date Received: 2024/03/19 Issue Date: 2024/08/07 Test Result: Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Wills Yu Nancy Wang RF Engineer RF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ1240319-13904E-RF-00A TR-EM-RF002 Page 2 of 105 Version 1.0 (2023/10/07) TABLE OF CONTENTS DOCUMENT REVISION HISTORY ......................................................................................................................... 4 GENERAL INFORMATION ....................................................................................................................................... 5 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 5 OBJECTIVE ................................................................................................................................................................... 5 TEST METHODOLOGY .................................................................................................................................................. 5 MEASUREMENT UNCERTAINTY .................................................................................................................................... 6 TEST FACILITY ............................................................................................................................................................. 6 SYSTEM TEST CONFIGURATION .......................................................................................................................... 7 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 7 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 7 EUT EXERCISE SOFTWARE .......................................................................................................................................... 8 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 8 EXTERNAL I/O CABLE .................................................................................................................................................. 8 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 9 SUMMARY OF TEST RESULTS ............................................................................................................................. 10 TEST EQUIPMENT LIST ......................................................................................................................................... 11 FCC §1.1307 (B) & §2.1091- MPE-BASED EXEMPTION ..................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 RESULT ...................................................................................................................................................................... 13 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 14 APPLICABLE STANDARD ............................................................................................................................................ 14 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 14 FCC §15.207 (A) - AC LINE CONDUCTED EMISSIONS ..................................................................................... 15 APPLICABLE STANDARD ............................................................................................................................................ 15 EUT SETUP ................................................................................................................................................................ 15 EMI TEST RECEIVER SETUP ..........................................................…

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Note: The information marked # is provided by the applicant, the laboratory is not responsible for its authenticity and this information can affect the validity of the result in the test report. Customer model name, addresses, names, trademarks etc. are included. This report cannot be reproduced except in full, without prior written approval of the Company. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government. This report may contain data that are not covered by the NVLAP accreditation and are marked with an asterisk “▼”. Bay Area Compliance Laboratories Corp. (Shenzhen) 5F(B-West) , 6F, 7F, the 3rd Phase of Wan Li Industrial Building D, Shihua Rd, FuTian Free Trade Zone, Shenzhen, China Tel: +86-755-33320018 Fax: +86-755-33320008 www.baclcorp.com.cn TR-EM-RF007 Page 1 of 39 Version 1.0 (2023/10/07) TEST REPORT Applicant Name: Shenzhen Xin Yuan Electronic Technology Co., Ltd. Address: Room 801-803, Yousuowei Building, No.2000 JiaXian Road, Bantian Street, Longgang District, Shenzhen, Guangdong China Report Number: SZ1240319-13904E-RF-00B FCC ID: 2ASYE-T-BEAM-S3 Test Standard (s) FCC PART 15.247 Sample Description Product Type: T-BEAM-S3 Model No.: T-BEAM-S3 Multiple Model(s) No.: T-BEAM-S3(L76K GPS) Trade Mark: LILYGO Date Received: 2024/03/19 Issue Date: 2024/08/07 Test Result: Pass ▲ ▲ In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Wills Yu Nancy Wang RF Engineer RF Supervisor Bay Area Compliance Laboratories Corp. (Shenzhen) Report No.: SZ1240319-13904E-RF-00B TR-EM-RF007 Page 2 of 39 Version 1.0 (2023/10/07) TABLE OF CONTENTS DOCUMENT REVISION HISTORY ...................................................................…

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