2AD56HLK-B32Wi-Fi Module

Shenzhen HI-Link Electronic Co.,Ltd HLK-B32 User Manual Content 1. Product Profile............................................................................................................................................................1 1.1 Overview....................................................................................................................................................... 1 1.2 Product Characteristics..................................................................................................................................1 1.3 Product Packaging.........................................................................................................................................1 1.4 Technical Specifications................................................................................................................................2 1.5 Pins Introduction........................................................................................................................................... 3 2. Functional Description............................................................................................................................................... 4 2.1 WiFi Indicator Flashing Description.............................................................................................................4 2.2 Wifi Connection Status Indicator Pin............................................................................................................5 2.3 Socket Connection Status Indicator Pin........................................................................................................5 2.4 One-click Distribution Mode........................................................................................................................ 5 2.5 Web Distribution Function............................................................................................................................6 2.6 Serial to WIFI STA........................................................................................................................................7 2.7 Serial Port Working State Conversion .......................................................................................................... 8 2.8 Serial Port-network Data Conversion........................................................................................................... 8 2.8.1 Module as TCP Server ......................................................................................................................... 8 2.8.2 Module as TCP Client........................................................................................................................ 9 2.8.3 Module as UDP Server .......................................................................................................................9 2.8.4 Module as UDP Client ..................................................................................................................... 10 2.9 Application Areas ...................................................................................................................................... 10 3. AT Instructions..........................................................................................................................................................10 3.1 Query Current Module Version: at+ver.......................................................................................................11 3.2 Local Port Operation: at+CLport................................................................................................................ 11 3.3 Set up Serial Port: at+uart........................................................................................................................... 12 3.4 Set up DHCP: at+dhcpc.............................................................................................................................. 12 3.5 Set up Wifi Connection Mode: at+netmode................................................................................................12 3.6 Set up TCP Connection Mode: at+mode.................................................................................................... 12 3.7 Set up Remote IP When Modules Work as Client: at+remoteip.................................................................13 3.8 Set up Remote Port When Module Act as Client: at+remoteport...............................................................13 3.9 Set Parameter Submission: at+net_commit................................................................................................ 13 3.10 System Restart: at+reconn.........................................................................................................................13 3.11 Set the Module's ssid and Password: at+wifi_conf...................................................................................14 3.12 Set up Socket Connection Protocol: at+remotepro...................................................................................14 3.13 Set Network Connection Parameters: at+net_ip.......................................................................................14 3.14 Query Network Connection Status in STA Mode: at+wifi_ConState......................................................14 3.15 Query Module MAC Address: at+Get_MAC...........................................................................................15 3.16 Set the Frame Length: at + uartpacklen.......................................................................................................15 4. Upgrade Introduction............................................................................................................................................... 17 3.17 Set the Frame Time:at+uartpacktimeout 4.1 Introduction of Serial Port Upgrade Method.............................................................................................. 17 4.1.1 …

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Shenzhen Hi-Link Electronic co., Ltd. Address: Address: Room 301, Building 1, 1970 Science & Technology Park, Minzhi Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E-mail: [email protected] Date: 2022-09-16 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Shenzhen Hi-Link Electronic co., Ltd. authorize Shenzhen Accurate Technology Co., Ltd. to act as a laboratory for testing and test report generation for the following project(s): (Product Name: WIFI module; Model: HLK-B32, HLK-RM58D; FCC ID: 2AD56HLK-B32) The chipset MT7697D used in this device for US only supports 2.4G Wi-Fi (2412-2462MHz) and 5G Wi-Fi 802.11A, other functions were disabled by software, the end user has no capability to activate it. Signature: Name: Jacky Gong Title: Manager

Shenzhen Hi-Link Electronic co., Ltd. Address: Address: Room 301, Building 1, 1970 Science & Technology Park, Minzhi Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755-23152658 Fax: (86) 755-83575196 E- mail: [email protected] Modular A pproval Letter Date: 2022-09-16 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: WIFI module; Model: HLK-B32 , HLK -RM58D; FCC ID: 2AD56HLK-B32 . It is seeking modular approval. The radio meets the requirements for modular approval as detailed in FCC 15.247 and FCC 15.407. 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: MT7697D). 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 15.247 and 15.407” Yes . The EUT has a unique antenna port arrangement for WIFI Module, which was employed the antenna maximum gain are 3.76dBi(2.4G WIFI) and 4.69dBi(5G WIFI). 5. “The modular transmitter must be tested in a stand-alone configuration.” Yes, it is fulfilled. The EUT was tested in a stand-alo ne 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 .This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. 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

Shenzhen Hi-Link Electronic co., Ltd. Address: Address: Room 301, Building 1, 1970 Science & Technology Park, Minzhi Community, Minzhi Street, Longhua District, Shenzhen, China Tel.: (86) 755 -23152658 Fax: (86) 755-83575196 E-mail: [email protected] Product Similarity Declaration 2022 -09 -08 To: FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Shenzhen Hi-Link Electronic CO.,Ltd here by declare that we have a product named as WIFI module(Model: HLK-B32, FCC ID: 2AD56HLK-B32) was tested by Shenzhen Accurate Technology Co., Ltd., Meanwhile, for our marketing purpose, we would like to list series (Model HLK-RM58D) on reports and certificate. They have the same circuit the only difference is the 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, Sig nature : Name: Jacky Gong Title: Manager

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 1 of 4 External photos Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 2 of 4 Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 3 of 4 Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 4 of 4

Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 1 of 1 Internal photos

Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS2220719-32781E-RF-00A Version 16: 2021-11-09 Page 11 of 50 FCC-2.4G Wi-Fi FCC §1.1307(b) –RF EXPOSURE Applicable Standard According to KDB 447498 D04 Interim General RF Exposure Guidance v01, clause 2.1.4 –MPE-Based Exemption: An alternative to the SAR-based exemption is provided in § 1.1307(b)(3)(i)(C), for a much wider frequency range, from 300 kHz to 100 GHz, applicable for separation distances greater or equal to λ/2π, where λ is the free-space operating wavelength in meters. The MPE-based test exemption condition is in terms of ERP, defined as the product of the maximum antenna gain and the delivered maximum time-averaged power. For this case, a RF source is an RF exempt device if its ERP (watts) is no more than a frequency-dependent value, as detailed tabular form in Appendix B. These limits have been derived based on the basic specifications on Maximum Permissible Exposure (MPE) considered for the FCC rules in § 1.1310(e)(1). Table to § 1.1307(b)(3)(i)(C) - Single RF Sources Subject to Routine Environmental Evaluation f = frequency in MHz; R = minimum separation distance from the body of a nearby person (appropriate units, e.g., m); Test result For worst case: Mode Frequency Range (MHz) Tune-up Output Power Antenna Gain ERP Evaluation Distance (cm) MPE-based exemption Limit (W) (dBm) (mW) (dBi) (dBd) (dBm) (W) 2.4G Wi-Fi 2412-2462 17 50.12 3.76 1.61 18.61 0.073 20 0.768 5G Wi-Fi 5150-5250 12 15.85 4.69 2.54 14.54 0.028 20 0.768 5250-5350 14.5 28.18 4.69 2.54 17.04 0.051 20 0.768 5470-5725 15.5 35.48 4.69 2.54 18.04 0.064 20 0.768 5725-5850 12 15.85 4.69 2.54 14.54 0.028 20 0.768 Note 1: The tune-up power was declared by the applicant. Note 2: 0dBd=2.15dBi. Note 3: The 2.4G Wi-Fi function can’t transmit at the same time with the 5G Wi-Fi function. To maintain compliance with the FCC’s RF exposure guidelines, place the equipment at least 20cm from nearby persons. Result: Compliant.

Note: This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “★”. Shenzhen Accurate Technology Co., Ltd. is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect testresults are marked with an asterisk ’*’. Customer model name, addresses, names, trademarks etc. are not considered data. 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. Shenzhen Accurate Technology Co., Ltd. 1/F., Building A, Changyuan New Material Port, Science & Industry Park, Nanshan District, Shenzhen, Guangdong, P.R. China Tel: +86 755-26503290 Fax: +86 755-26503396 Web: www.atc-lab.com Version 16: 2021-11-09 Page 1 of 50 FCC-2.4G Wi-Fi TESTREPORT Applicant Name : Shenzhen Hi-Link Electronic co., Ltd. Address : Room 301, Building 1, 1970 Science & Technology Park, Minzhi Community, Minzhi Street, Longhua District, Shenzhen, China Report Number: SZNS2220719-32781E-RF-00A FCC ID: 2AD56HLK-B32 Test Standard (s) FCC Part 15.247 Sample Description Product Name: WIFI module Model No.: HLK-B32; HLK-RM58D Trade Name Hi-Link Date Received: 2022-07-19 Date of Test: 2022-07-25 to 2022-08-08 Report Date: 2022-08-08 Test Result: Pass* * In the configuration tested, the EUT complied with the standards above. Prepared and Checked By: Approved By: Roger.Ling Candy Li EMC Engineer EMC Engineer Shenzhen Accurate Technology Co., Ltd. Report No.: SZNS2220719-32781E-RF-00A Version 16: 2021-11-09 Page 2 of 50 FCC-2.4G Wi-Fi TABLE OF CONTENTS GENERAL INFORMATION ....................................................................................................................................... 4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ..................................................................................... 4 OBJECTIVE ................................................................................................................................................................... 4 TEST METHODOLOGY .................................................................................................................................................. 4 MEASUREMENT UNCERTAINTY .................................................................................................................................... 4 SYSTEM TEST CONFIGURATION .......................................................................................................................... 6 DESCRIPTION OF TEST CONFIGURATION ...................................................................................................................... 6 EQUIPMENT MODIFICATIONS ....................................................................................................................................... 6 EUT EXERCISE SOFTWARE .......................................................................................................................................... 6 DUTY CYCLE ................................................................................................................................................................ 6 SUPPORT EQUIPMENT LIST AND DETAILS .................................................................................................................... 7 EXTERNAL I/O CABLE.................................................................................................................................................. 7 BLOCK DIAGRAM OF TEST SETUP ................................................................................................................................ 7 SUMMARY OF TEST RESULTS ............................................................................................................................... 9 TEST EQUIPMENT LIST ......................................................................................................................................... 10 FCC §1.1307(b) –RF EXPOSURE ............................................................................................................................. 11 FCC §15.203 - ANTENNA REQUIREMENT ........................................................................................................... 12 APPLICABLE STANDARD ............................................................................................................................................ 12 ANTENNA CONNECTOR CONSTRUCTION .................................................................................................................... 12 FCC §15.207 (a) – AC LINE CONDUCTED EMISSIONS ..................................................................................... 13 APPLICABLE STANDARD ............................................................................................................................................ 13 EUT SETUP ................................................................................................................................................................ 13 EMI TEST RECEIVER SETUP ....................................................................................................................................... 13 TEST PROCEDURE ...................................................................................................................................................... 13 FACTOR & MARGIN CALCULATION ........................................................................................................................... 14 TEST DATA ................................................................................................................................................................ 14 FCC §15.209, §15.20…

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® 深圳市海凌科电子有限公司 SHEN ZHEN Hi-LinK ELECTRICAL CO, LTD MT-22-008 REV1.0 SPECIFICATION ITEM Item Description 1.............................................SPEC 2.............................................SPEC ITEM 3.............................................Engineer drawing 4.............................................Performance ® 深圳市海凌科电子有限公司 SHEN ZHEN Hi-LinK ELECTRICAL CO, LTD MT-22-008 REV1.0 RF Antenna Cable Assembly Specification 1. Electrical Properties 1.1 Frequency Range........................2.4GHz-5GHz 1.2 Impedance.................................50Ω Nominal 1.3 VSWR..........................................1.92:1MAX 1.4 Return Loss.................................-14dB Max 1.5 Gain(peak).................................2.4G 3.76dBi/5G 4.69dBi 1.6 Cable loss....................................0.3dBi Max 1.7 Polarization.................................Linear Vertical 1.8 Cable..........................................RG-178 1.9 Conn.......................................... SMA-Male-RP 2. Physical Properties: 2.1 Antenna Material.................................Cu 2.4 Operating Temp..............................-20°C- +65°C 2.5 Storage Temp.................................-30°C- +75°C 2.6 Color............................................. BLACK ® 深圳市海凌科电子有限公司 SHEN ZHEN Hi-LinK ELECTRICAL CO, LTD MT-22-008 REV1.0 RF Antenna Assembly SPEC:2.4~5.8GHz ® 深圳市海凌科电子有限公司 SHEN ZHEN Hi-LinK ELECTRICAL CO, LTD MT-22-008 REV1.0 2.4-5.8Ghz Performance data: FreqEffiEffiGainGainUHISDHISMaxMin irectivitBeamwidthAttHAttV (MHz)(%)(dB)(dBi) (dBd)(%)(%)(dB)(dB)(dBi) (3dB)(dB)(dB) 240075 87-1234412933 17442 692344-21 0246418045 5145 06 Passive Test For 2.4G~5.8G 240075.87-1.23.441.2933.17442.6923.44-21.024.6418045.5145.06 245076.95 -1.143.291.14 35.151 41.8013.29 -29.144.4360 45.36 44.92 250087.91 -0.563.761.61 40.89 47.0233.76 -15.314.320 45.93 45.51 255075.09 -1.243.080.93 34.918 40.1753.08 -13.954.330 45.05 44.56 260077.72 -1.093.531.38 35.684 42.0373.53 -15.394.63150 45.41 44.84 265079.18 -1.013.891.74 36.341 42.8423.89 -18.464.990 45.8445.1 270083.29 -0.794.332.18 38.723 44.574.33 -18.385.1260 46.3545.7 275080.56 -0.944.252.1 37.978 42.5834.25 -19.585.1960 46.48 45.87 280084.98-0.714.282.1340.40444.584.28-16.54.996046.8546.35280084.980.714.282.1340.40444.584.2816.54.996046.8546.35 285082.08 -0.864.172.02 38.697 43.3874.17 -10.875.03120 46.81 46.56 290085.18-0.73.861.71 41.267 43.9123.86 -11.984.56120 47.03 46.81 295084.69 -0.723.391.24 43.53 41.1573.39 -12.34.11120 47.35 47.21 300074.65 -1.272.60.45 38.888 35.7572.6 -15.043.87300 46.74 46.49 305065.72 -1.822.14 -0.01 33.564 32.1572.14 -13.723.97120 46.71 46.31 310072.73 -1.382.620.47 36.42 36.3092.62 -12.96460 46.88 46.42 315067.55-1.72.860.71 32.88 34.6682.86 -14.634.5660 47.1846.8 320061.38 -2.122.660.51 29.158 32.2222.66 -13.94.7860 47.03 46.71 325063.28 -1.993.621.47 29.518 33.7593.62 -18.455.610 47.0546.9 330062.13 -2.073.10.95 29.32 32.8083.1 -15.485.1760 47.24 47.17 335068.45 -1.653.671.52 32.478 35.9743.67 -13.675.3190 47.84 47.81 340074.94 -1.253.371.22 36.006 38.9383.37 -13.494.6290 48.17 48.08 345067.21 -1.732.660.51 33.188 34.0222.66 -12.954.38270 47.85 47.69 350060.71 -2.172.180.03 30.87 29.8442.18 -13.034.34240 47.37 47.35 360073.33 -1.352.930.78 36.531 36.7982.93 -13.24.2860 47.77 47.63 370076.34 -1.172.880.73 37.13 39.2072.88 -17.154.06300 47.83 47.58 380081 420893291143942 41532919 6541830047 8747 79380081.42 -0.893.291.1439 42.4153.29 -19.654.18300 47.87 47.79 390087.58 -0.583.911.76 42.244 45.3373.91 -12.984.48120 48.03 48.16 400088.21 -0.543.661.51 38.337 49.8733.66 -8.824.210 48.28 48.18 410096.68 -0.155.83.65 40.917 55.7585.8 -9.265.95150 48.8348.6 420094.37 -0.255.493.34 40.454 53.9165.49 -11.75.740 48.36 48.43 4300100.840.046.133.98 44.32 56.5166.13 -10.516.09120 48.74 48.83 440097.66-0.16.184.03 43.43 54.2286.18 -12.826.2890 49.13 49.21 450081.35-0.95.142.99 36.255 45.0945.14 -16.386.0460 48.63 48.61 460076 89-114528535 2441 6535-14 9861512048 6648 78460076.89-1.1452.8535.2441.6535-14.986.1512048.6648.78 470072.74 -1.385.483.33 33.845 38.8935.48 -13.566.8760 48.56 48.62 471070.18 -1.545.363.21 32.662 37.5195.36 -13.536.960 48.53 48.61 472071.39 -1.465.473.32 33.28 38.1155.47 -13.086.9390 48.58 48.63 473067.78 -1.695.243.09 31.732 36.0525.24 -13.086.9390 48.44 48.52 474068.36 -1.655.273.12 32.068 36.2885.27 -12.736.92240 48.46 48.51 475065.88 -1.815.12.95 30.978 34.9035.1-136.92240 48.32 48.36 476067.72 -1.695.213.06 31.699 36.0225.21-136.91240 48.44 48.54 477066.44 -1.785.153 30.904 35.5375.15 -13.436.92240 48.43 48.56 477066.441.785.15330.90435.5375.1513.436.9224048.4348.56 478067.72 -1.695.233.08 31.341 36.3745.23 -13.416.92240 48.55 48.69 479067.85 -1.685.263.11 31.279 36.5745.26 -13.456.94240 48.67 48.82 480066.36 -1.785.142.99 30.634 35.7265.14 -13.526.92240 48.72 48.88 481065.61 -1.835.122.97 30.301 35.3055.12 -13.516.96240 48.47 48.59 482062.58 -2.044.922.77 28.95 33.6254.92 -14.016.95240 48.64 48.82 483064.75 -1.895.062.91 30.059 34.6885.06 -14.116.95240 48.51 48.62 484062.72 -2.034.92.75 29.16 33.5594.9 -16.776.92240 48.77 48.96 485066.24 -1.795.082.93 30.831 35.4115.08 -20.596.87240 48.81 48.96 486064.65 -1.894.892.74 30.06 34.5884.89 -23.746.78240 48.9149.1 487068.88 -1.625.12.95 32.031 36.8535.1 -20.576.72240 48.95 49.08 488065.29 -1.854.72.55 30.479 34.8144.7 -17.26.55240 49.36 49.56 489066.96 -1.744.72.55 31.43 35.534.7 -14.866.44240 49.04 49.12 490064.67 -1.894.452.3 30.603 34.0654.45 -14.676.34240 49.24 49.37 491072.34 -1.414.92.75 34.511 37.8324.9 -14.346.31240 49.48 49.53 492067.16 -1.734.592.44 32.263 34.9014.59 -14.396.32240 49.1149.2 493071.22 -1.474.852.7 34.336 36.8894.85 -13.766.32150 49.2549.3 494066 5517744723232 16134 39144713 7762412049 2749 38 496069.23-1.64.462.31 33.55 35.6834.46 -13.296.05120 49.36 49.43 497067.62-1.74.252.1 32.917 34.7074.25 -13.475.94150 49.25 49.25 498068.73 -1.634.232.08 33.758 34.9734.23 -13.555.86150 49.18 49.21 499067 7-169415233 56334 138415-13 755849049 234…

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Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 1 of 2 Photo of Power Line Conducted Emission Measurement Shenzhen Accurate Technology Co., Ltd. Project No.: SZNS2220719-32781E-RF Page 2 of 2 Photo of Radiated Emission Measurement Below 1GHz Photo of Radiated Emission Measurement Above 1GHz