2AD56HLK-M35WIFI module

Shenzhen HaiLingKe Electronic co., Ltd HLK-M35 User Manual Serial to WiFi Module Shenzhen hailingke Electronico.,Ltd Tel:0755-23152658 Fax:0755-83575196 Page 2 / 31 Pages Catalog 1.1.1 Brief Introduction.................................................................................................................... 3 1.1.2 Module Features： ................................................................................................................ 3 1.1.3 Module Parameters： ........................................................................................................... 4 1.1.4 Application .............................................................................................................................. 5 1.1.5 Hardware ................................................................................................................................ 5 1.1.6 Mechanical Dimension .......................................................................................................... 7 1.1.7 Antenna(optional) .................................................................................................................. 8 1.1.8 General development test suit ............................................................................................. 8 1.2 Typical Application ................................................................................................................... 10 1.2.1 HLK-M35 typical circuit ....................................................................................................... 10 2 Function ..................................................................................................................................................... 11 2.1Wireless ................................................................................................................................................... 11 2.1.1 Work At STA Mode ............................................................................................................ 11 2.1.2 Work At SoftAP Mode ....................................................................................................... 11 2.2 Work Mode: Transparent transmission .............................................................................................. 12 2.3 Config Parameters ................................................................................................................................ 13 2.4 Firmware Update .................................................................................................................................. 13 2.5 GPIO ....................................................................................................................................................... 13 2.6 Network Protocol ................................................................................................................................... 14 2.6.1 Transparent transmission .............................................................................................. 14 2.6.2 AT command....................................................................................................................... 16 3.Setting and using guide ........................................................................................................................... 17 3.1 Config by serial ..................................................................................................................................... 17 3.1.1 Preparation work ................................................................................................................ 17 3.1.2 How to Connect ................................................................................................................. 17 3.1.3 Test Steps: .................................................................................................................................. 18 3.1.4 Communication test .......................................................................................................... 20 4.1Mode conversion ................................................................................................................. 25 4.2 At command instruction ................................................................................................... 26 Appendix ................................................................................................................................................ 29 Document history ................................................................................................................................... 29 Shenzhen hailingke Electronico.,Ltd Tel:0755-23152658 Fax:0755-83575196 Page 3 / 31 Pages 1.1.1 Brief Introduction HLK-M35 is a new low-cost embedded uart wifi module developed by Shenzhen HaiLin gKe Electronic co., Ltd This product is an embedded module based on the universal serial interface network standard, built-in TCP / IP protocol stack, enabling the user serial port, wireless network (wifi) interface between the conversions。 Through the HLK-M35 module, the traditional serial devices do not need to change any configuration data can be transmitted through the Internet network. Provide a quick solution for the user’s serial devices to transfer data via Ethernet.。 This document as familiar with the HLK-M35 module and the test suite for guidance doc ument.Please refer to<< HLK-M35 AT Command.pdf>>and<< HLK-M35 DataSheet>> 1.1.2 Module Features： ► Small size:18mm×25mm×2.5mm ► Low power consumption; Quick start;;network connect quickly ► Pefect support 802.11b/g/n ► Support all wifi encryption:WEP/WPA-TKIP/WPA-AES/WPA2-TKIP/WPA2-AES ► No driver need,User only need to use it as a serial port ► Support STA/AP mode ► Support TCP Server/TCP Client/UDP Server/UDP Client ► Support DHCP DNS HTTP ► Support serial at command also network at command ► Support search module in LAN ► Support SmartLink function,use app to config the m…

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ShenZhen HaiLingKe Electronic co.,Ltd. 3F, 5# Buliding, Minxing Industrial Park, MinKang Rd .Minzhi, Longhua District, Shenzhen, China --------------------------------------------------------------------------------------------------------------------- Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2AD56HLK-M35 Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of information accompanying this application as outlined below: Exhibit Type File Name Schematics 2AD56HLK-M35_FCCID_Schematics.pdf Block Diagram 2AD56HLK-M35_FCCID_BlockDiagram.pdf Operational Description 2AD56HLK-M35_FCCID_OperationalDescription.pdf The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, ShenZhen HaiLingKe Electronic co.,Ltd. ------------------------- (Jacky Gong) (Manager)

ShenZhen HaiLingKe Electronic co.,Ltd. 3F, 5# Buliding, Minxing Industrial Park, MinKang Rd .Minzhi, Longhua District, Shenzhen, China -------------------------------------------------------------------------------- (FCC ID：2AD56HLK-M35) POWER OF ATTORNEY DATE: 2015-01-29 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen SEM.Test Technology Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Shenzhen SEM.Test Technology Co., Ltd. Jandy So on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, ShenZhen HaiLingKe Electronic co.,Ltd. are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, ShenZhen HaiLingKe Electronic co.,Ltd. ------------------------- (Jacky Gong) (Manager)

ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 EXHIBIT 2- EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2

ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2AD56HLK-M35 Specifications: Text is Black in color and justified. Labels are printed in indelible ink on permanent adhesive silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT FCC ID Label Location

ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format FCC ID: 2AD56HLK-M35 Specifications: Text is Black in color and justified. Labels are printed in indelible ink on permanent adhesive silk-screened onto the EUT or shall be affixed at a conspicuous location on the EUT. Proposed Label Location on EUT FCC ID Label Location

ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 Solder Board-Component View 2

1. MAXIMUM PERMISSIBLE EXPOSURE (MPE) 1.1 Standard Applicable According to §1.1307(b)(1), system operating under the provisions of this section shall be operating in a manner that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. (a) Limits for Occupational / Controlled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-3.0 614 1.63 (100)* 6 3.0-30 1842/f 4.89/f (900/f)* 6 30-300 61.4 0.163 1.0 6 300-1500 / / F/300 6 1500-100000 / / 5 6 (b) Limits for General Population / Uncontrolled Exposure Frequency range (MHz) Electric Field Strength (E) (V/m) Magnetic Field Strength (H) (A/m) Power Density (S) (mW/cm 2 ) Averaging Times | E | 2 , | H | 2 or S (minutes) 0.3-1.34 614 1.63 (100)* 30 1.34-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 / / F/1500 30 1500-100000 / / 1 30 Note: f = frequency in MHz: * = Plane-wave equivalents power density 1.2 MPE Calculation Method S = (30*P*G) / (377*R 2 ) S = power density (in appropriate units, e.g., mw/cm 2 ) P = power input to the antenna (in appropriate units, e.g., mw) G = power gain of the antenna in the direction of interest relative to an isotropic radiator, the power gain factor is normally numeric gain. R = distance to the center of radiation of the antenna (in appropriate units, e.g., cm) 1.3 MPE Calculation Result Since the maximum eirp power is used as the output power to antenna, so the Gain of the antenna can be assumed as 0dBi. Maximum peak output power: 17.83 (dBm) Maximum peak output power at antenna input terminal: 60.67(mW) Prediction distance: >20 (cm) Prediction frequency: 2412 (MHz) Antenna gain (typical): 0 (dBi) Antenna gain (typical): 1 (numeric) The worst case is power density at prediction frequency at 5cm: 0.0121(mw/cm 2 ) MPE limit for general population exposure at prediction frequency: 1 (mw/cm 2 ) 0.0121 (mw/cm 2 ) < 1 (mw/cm 2 ) Result: Pass

ShenZhen HaiLingKe Electronic co.,Ltd. Model:HLK-M35 REPORT NO.: STR15018194I PAGE 1 OF 109 FCC PART 15.247 FCC Part 15C Measurement and Test Report For ShenZhen HaiLingKe Electronic co.,Ltd. 3F, 5# Buliding, Minxing Industrial Park, MinKang Rd .Minzhi, Longhua District, Shenzhen, China FCC ID: 2AD56HLK-M35 FCC Rule(s): FCC Part 15C Product Description: WIFI module Tested Model: HLK-M35 Report No.: STR15018194I Tested Date: 2015-01-21 to 2015-01-31 Issued Date: 2015-01-31 Tested By: Jong Wang / Engineer Reviewed By: Lahm Peng / EMC Manager Approved & Authorized By: Jandy so / PSQ Manager Prepared By: Shenzhen SEM.Test Technology Co., Ltd. 1/F, Building A, Hongwei Industrial Park, Liuxian 2nd Road, Bao'an District, Shenzhen, P.R.C.（518101） Tel.: +86-755-33663308 Fax.: +86-755-33663309 Website: www.semtest.com.cn Note: This test report is limited to the above client company and the product model only. It may not be duplicated without prior permitted by Shenzhen SEM.Test Technology Co., Ltd. ShenZhen HaiLingKe Electronic co.,Ltd. Model:HLK-M35 REPORT NO.: STR15018194I PAGE 2 OF 109 FCC PART 15.247 TABLE OF CONTENTS 1. GENERAL INFORMATION ................................................................................................................................... 3 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ............................................................................... 3 1.2 TEST STANDARDS ................................................................................................................................................... 4 1.3 TEST METHODOLOGY ............................................................................................................................................. 4 1.4 TEST FACILITY ....................................................................................................................................................... 4 1.5 EUT SETUP AND TEST MODE ................................................................................................................................. 5 2. SUMMARY OF TEST RESULTS ........................................................................................................................... 6 3. RF EXPOSURE ......................................................................................................................................................... 7 3.1 STANDARD APPLICABLE ......................................................................................................................................... 7 3.2 TEST RESULT.......................................................................................................................................................... 7 4. ANTENNA REQUIREMENT .................................................................................................................................. 8 4.1 STANDARD APPLICABLE ......................................................................................................................................... 8 4.2 EVALUATION INFORMATION .................................................................................................................................. 8 5. POWER SPECTRAL DENSITY ............................................................................................................................. 9 5.1 STANDARD APPLICABLE ......................................................................................................................................... 9 5.2 TEST EQUIPMENT LIST AND DETAILS ..................................................................................................................... 9 5.3 TEST PROCEDURE ................................................................................................................................................... 9 5.4 ENVIRONMENTAL CONDITIONS .............................................................................................................................. 9 5.5 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 10 6. 6DB BANDWIDTH ................................................................................................................................................. 21 6.1 STANDARD APPLICABLE ....................................................................................................................................... 21 6.2 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 21 6.3 TEST PROCEDURE ................................................................................................................................................. 21 6.4 ENVIRONMENTAL CONDITIONS ............................................................................................................................ 21 6.5 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 22 7. RF OUTPUT POWER ............................................................................................................................................ 33 7.1 STANDARD APPLICABLE ....................................................................................................................................... 33 7.2 TEST EQUIPMENT LIST AND DETAILS ................................................................................................................... 33 7.3 TEST PROCEDURE ................................................................................................................................................. 33 7.4 ENVIRONMENTAL CONDITIONS ............................................................................................................................ 33 7.5 SUMMARY OF TEST RESULTS/PLOTS ............…

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ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 EXHIBIT 3 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) ShenZhen HaiLingKe Electronic co., Ltd. Model:HLK-M35 REPORT NO.: STR15018194I FCC PART 15.247 Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (Above 1GHz)