2AD56HLK-LD2410B-PRadar Module

Page 1 /21 Shenzhen Hi-Link Electronic Co., Ltd. HLK-LD2410B Radar Module User Manual Version: V1.04Revised date: 2022-6-29Copyright by @ Hi-Link Electronic Co., Ltd. Shenzhen Hi-Link Electronics Co.,Ltd User manual HLK-LD2410B Page 2 /21 Content 1. Product introduction....................................................................................................................... 3 2. Product features and benefits.........................................................................................................4 2.1Features........................................................................................................................................4 2.2Solution advantage.......................................................................................................................4 3. Application scenarios.......................................................................................................................5 4. Hardware description......................................................................................................................6 4.1Dimensions.................................................................................................................................. 6 4.2Pin definition................................................................................................................................7 5. Use and configuration......................................................................................................................7 5.1Typical application circuit...........................................................................................................7 5.2The role of configuration parameters...........................................................................................7 5.3Visual configuration tool description...........................................................................................8 5.4Mounting method and sensing range...........................................................................................9 5.5Installation conditions................................................................................................................11 6. Bluetooth instructions....................................................................................................................12 6.1Install software...........................................................................................................................12 6.2Instructions.................................................................................................................................12 6.3Bluetooth password....................................................................................................................13 6.4OTA upgrade............................................................................................................................. 13 6.5Bluetooth communication protocol............................................................................................15 6.6Turn on bluetooth again.............................................................................................................15 7. Performance and electrical parameters.......................................................................................16 8. Radome design guidelines.............................................................................................................17 8.1Effects of radomes on mm wave sensor performance...............................................................17 8.2Radome design principles..........................................................................................................18 8.3Common materials.....................................................................................................................18 9. Revision records.............................................................................................................................20 10. Technical support and contact....................................................................................................21 Shenzhen Hi-Link Electronics Co.,Ltd User manual HLK-LD2410B Page 3 /21 1. Product introduction HLK-LD2410B is a high-sensitivity 24GHz human presence status radar module developed by Hi-link Electronics. Its working principle is to use FMCW frequency-modulated continuous wave to detect human targets in the set space. Combined with radar signal processing and accurate human body sensing algorithms, it realizes high-sensitivity human presence status sensing, and can identify human bodies in motion and stationary states. And auxiliary information such as the distance of the target can be calculated. This product is mainly used in indoor scenes to sense whether there is a moving or micro- moving human body in the area, and output the detection results in real time. The farthest sensing distance can reach 5 meters, and the distance resolution is 0.75m. Provides a visual configuration tool, which can easily configure the sensing distance range, sensing sensitivity in different intervals and unmanned delay time, etc., to adapt to different specific application needs. Support GPIO and UART output, plug and play, and can be flexibly applied to different smart scenarios and terminal products. Figure 1 Diagram of usage Shenzhen Hi-Link Electronics Co.,Ltd User manual HLK-LD2410B Page 4 /21 2. Product features and benefits 2.1Features Plugandplay,easyassembly Thelongestsensingdistanceisupto5meters Largedetectionangle,coverageupto±60degrees Accurate identification withinthe interval, support the division of the sensing range, andshieldthe interferenceoutsidetheinterval Multi-level intelligent parameter adjustment can be realized through Bluetooth or serial port to meettheneedsofscenechanges Visualdebuggingandconfigurationtools Smallandsimple,theminimumsizeisonly7mmx35mm Supportsvariousinstallationmethodssuchasceilinghang…

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Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] Date: 2023-0 6-05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD21046 Dear Sir/Madam, We, Shenzhen Hi-Link Electronic co., Ltd. authorize China Certification ICT Co., Ltd(Dongguan)to act as a laboratory for testing and test report generation for the following project(s): (Product Name:Radar Module; Model:HLK-LD2410B-P, HLK-LD2410B; FCC ID: 2AD56HLK-LD2410B-P) The chipset AC6323A used in this device for US only supports BLE 2M, other functions were disabled by software, the end user has no capability to activate it. Signature: Name: Jacky Gong Title: Manager

ATTESTATION STATEMENT Applicant: SHENZHEN HI-LINK ELECTRONIC CO., LTD. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel: (86) 755-23152658 Email: [email protected] Date: 2023-06-05 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD21046 Ref: Attestation Statements Part 2.911(d)(5)(i), (ii)Filing FCC ID: 2AD56HLK-LD2410B-P SHENZHEN HI-LINK ELECTRONIC CO., LTD. certifies that the equipment for which authorization is sought is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section2.903 of the FCC rules. And SHENZHEN HI-LINK ELECTRONIC 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, Signed by (printed name): Jacky Gong Signature:

Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] QA-FR-170-B FCC Authorization Date: 2023-06-05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We, Shenzhen Hi-Link Electronic co., Ltd. hereby authorize China Certification ICT Co., Ltd (Dongguan) 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 China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, Shenzhen Hi-Link Electronic co., Ltd. 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 Name: Jacky Gong Title: Manager

Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] FCC Confidential Authorization Date: 2023-06-05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2AD56HLK-LD2410B-P In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Hi- Link Electronic 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 Name: Jacky Gong Title: Manager

Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] Product Similarity Declaration 2 023-05-08 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Shenzhen Hi-Link Electronic CO., Ltd . hereby declare that we have a product named as Radar Module (Model: HLK-LD2410B-P, FCC ID: 2AD56HLK-LD2410B-P) was tested by China Certification ICT Co., Ltd (Dongguan), Meanwhile, for our marketing purpose, we would like to list series (model HLK-LD2410B) on reports and certificate. They have the same circuit the only difference is model name. We confirm that all information above is true, and we’ll be responsible for all the consequences. Please contact me if you have any question. Sincerely Yours, Signature: Name: Jacky Gong Title: Manager

Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] Modular Approval Letter Date: 2023-06-05 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Application Examiner, We, Shenzhen Hi-Link Electronic co., Ltd. is submitting this application for certification of product named as Product Name: Radar Module; Model: HLK-LD2410B-P, HLK-LD2410B; FCC ID: 2AD56HLK-LD2410B-P. It is seeking modular approval. The radio meets the requirements for modular approval as detailed in FCC 15.247 and FCC 15.249. Compliance to each of the requirements is described below: 1.“The modular transmitter must have its own RF shielding.” Yes, it is fulfilled. The radio portion of the module has its own RF shielding. The shielding is installed at the factory. Please see the EUT photos. 2.“The modular transmitter must have buffered modulation/data inputs.” The modular transmitter has buffered modulation/data inputs, Buffered data inputsstage has been integrated in chip (Model:S3KM111L and AC6323A ). 3.“The modular transmitter must have its own power supply regulation.” Yes, it is fulfilled. The EUT has its own power supply regulation to insure compliance, please refer to the Block Diagram 4.“The modular transmitter must comply with the antenna requirements of Section 15.2 47 and 15.249” Yes. The EUT has a PCB antenna for Radar(TX) and a Bluetooth antenna.The maximum gain of the radar antenna is 5.1 dBi and the maximum gain of the Bluetooth antenna is 2.72dBi 5.“The modular transmitter must be tested in a stand-alone configuration.” Yes, it is fulfilled. The EUT was tested in a stand-alone configuration, please refer to test photos exhibit for details. 6.“The modular transmitter must be labeled with its own FCC ID number.” Yes, it is fulfilled. The module will be labeled with its own FCC ID number. Please see FCC ID label & location exhibit. 7.“The modular transmitter must comply with any specific rule or operating requirements applicable to the transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements.” Yes, it is fulfilled. The necessary explanation to be complied with this requirement is contained in the user manual, and please refer to the User manual. 8.“The modular transmitter must comply with any applicable RF exposure requirements.” This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment .If the device built into a host as a portable usage, the additional RF exposure evaluation may be required as specified by §2.1093 . Please contact me if you have additional questions. Your attention to this matter is greatly appreciated. Sincerely Yours, Signature: Name: Jacky Gong Title: Manager

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS 24GHz Radar Chip 24GHz Radar Antenna_TX 24GHz Radar Antenna_RX BLE Chip BLE Antenna

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230524633-00A Page 34 of 34 5. RF EXPOSURE EVALUATION 5.1 Applicable Standard FCC §1.1307(b)(3)(i)(A) a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. 5.2 Procedure According to 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.2- 1-mW Test Exemption: Per §1.1307(b)(3)(i)(A), a single RF source is exempt RF device (from the requirement to show data demonstrating compliance to RF exposure limits, as previously mentioned) if the available maximum time-averaged power is no more than 1 mW, regardless of separation distance. This exemption applies to all operating configurations and exposure conditions, for the frequency range 100 kHz to 100 GHz, regardless of fixed, mobile, or portable device exposure conditions. This is a standalone exemption, and it cannot be applied in conjunction with any other test exemption. 5.3 Measurement Result Radio Frequency (MHz) Conducted output power including Tune- up Tolerance Antenna Gain (dBi) The Greater of Conducted Power or ERP 1-mW Test Exemption (dBm) dBm mW BLE 2402-2480 -6 2.72 -5.43 0.286 Compliant 24GHz Radar 24010-24245 / / -6.37 0.231 Compliant Note: 1. Chose the maximum power to do MPE analysis. 2. The maximum E-Field level for 24GHz Radar is 90.98dBμV/m at 3m, so the EIRP power is -4.22dBm. 3. Pout EIRP (dBm)=Field Strength of Fundamental(dBuV/m)-95.2 4. ERP (dBm) = EIRP (dBm)-2.15dB 5. The Value of Maximum Conducted Power including Tune-up Tolerance was declared by the customer. 6. The 24GHz Radar and BLE can transmit simultaneously. Total power P total = P BLE + P 24GHz Radar = 0.286+0.231 = 0.517 < 1 mW. Result: Compliant. RF Exposure is exemption. ===== END OF REPORT =====

TEST REPORT Applicant: Shenzhen Hi-Link Electronic co., Ltd. Address: 1705, 1706, 1709A, Building E, Xinghe WORLD, Minle Community, Minzhi Street, Longhua District, Shenzhen, China FCC ID: 2AD56HLK-LD2410B-P Product Name: Radar Module Model: HLK-LD2410B-P, HLK-LD2410B Standard(s): 47 CFR Part 15, Subpart C(15.249) ANSI C63.10-2013 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR230524633-00A Date Of Issue: 2023/5/23 Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230524633-00A Page 2 of 34 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. 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 may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR230524633-00A Page 3 of 34 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 8 1.3 FAR FIELD BOUNDARY CALCULATIONS ........................................................................................... 9 1.4 MEASUREMENT UNCERTAINTY .......................................................................................................... 9 2. SUMMARY OF TEST RESULTS .......................................................................................... 10 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 11 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 11 3.1.1 Applicable Standard ..................................................................................................................................... 11 3.1.2 EUT Setup.................................................................................................................................................... 12 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 12 3.1.4 Test Procedure ............................................................................................................................................. 13 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 13 3.2 RADIATED EMISSIONS ....................................................................................................................... 14 3.2.1 Applicable Standard ..................................................................................................................................... 14 3.2.2 EUT Setup.................................................................................................................................................... 14 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 16 3.2.4 Test Procedure ............................................................................................................................................. 16 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 17 3.3 20 DB EMISSION BANDWIDTH: .......................................................................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View Radiated Emission Below 1GHz View Radiated Emission Below 1GHz View Radiated Emission1-18GHz View Radiated Emission 18-26.5GHz View Radiated Emission26.5-40GHz View Radiated Emission 40-60GHz View Radiated Emission60-90GHz View Radiated Emission 90-100GHz View Radiated EmissionAbove1GHz View