2APDI-BCM-LZ100-ASBluetooth Module

KDͬ/ŶƚĞŐƌĂƚŽƌƐ/ŶƐƚĂůůĂƚŝŽŶDĂŶƵĂů CO NFIDENTIAL INFORMATION BnCOM Co.,Ltd. BCM-LZ100-AS wireless solutions BCM-LZ100-AS AT Command Reference(English) v.1.0.0 – 2022-04-29 BnCOM Confidential Proprietary 2 ◼ HISTORY Version Release Data Revision History 1.0.0 2022.04.29 Draft a document BnCOM Confidential Proprietary 3 ◼ contents 1. Introduction ...........................................................................................................................................................................................................................................................5 1.1. Protocol Basic Rule .................................................................................................................................................................................................................................5 1.2. Protocol Basic Rules ...............................................................................................................................................................................................................................6 2. Bluetooth Low Energy .......................................................................................................................................................................................................................................6 2.1. BLE Service UUID Classification .........................................................................................................................................................................................................6 2.2. BLE Advertising Data ..............................................................................................................................................................................................................................7 3. BT GPIO ...................................................................................................................................................................................................................................................................8 4. Notify Protocol Summary ................................................................................................................................................................................................................................9 5. General Response Protocol Summary .........................................................................................................................................................................................................9 6. AT Request Command Protocol Summary ............................................................................................................................................................................................. 10 6.1. General Commands Summary......................................................................................................................................................................................................... 10 6.2. General Commands ............................................................................................................................................................................................................................. 11 6.2.1. AT ................................................................................................................................................................................................................................................. 11 6.2.2. ATZ .............................................................................................................................................................................................................................................. 11 6.2.3. ATO ............................................................................................................................................................................................................................................. 11 6.2.4. AT&F ........................................................................................................................................................................................................................................... 12 6.2.5. AT&S ........................................................................................................................................................................................................................................... 12 6.2.6. AT+DISCONNECT .................................................................................................................................................................................................................. 13 6.2.7. AT+VER? .................................................................................................................................................................................................................................... 13 6.2.8. AT+REMOTEADDR?............................................................................................................................................................................................................... 13 6.2.9. AT+NAME? ............................................................................................................................................................................................................................... 14 6.2.10. AT+NAME=xxx ....................................................................................................................................................................................................................... 14 6.2.11. AT+ADVINFO? .................................................................................................................................................................................................…

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Attestation Statement Letter I Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Date: __________________ Ref: Attestation Statements Part 2.911(d)(5)(i) Filing FCC Application for FCC ID: _______________________________ ________________________ certifies that the equipment for which authorization is sought is not “covered” equipment prohibited for receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Applicant’s Signature: Applicant’s Name:

Attestation Statement Letter II Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: __________________ Ref: Attestation Statements Part 2.911(d)(5)(ii) Filing FCC Application for FCC ID: _______________________________ _________________________ 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, Applicant’s Signature: Applicant’s Name:

BNCOM CO.LTD 1106, M-Techno Center, 46, Gongdan-ro 140 Beon-gil Gunpo-si, Gyeonggi-do, 15847 South Korea Date: 2023-03-21 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: 2APDI-BCM-LZ100-AS US Agent – Attestation Statement / Part 2.911(d)(7) BNCOM CO.LTD certifies, that as of 2023-03-21, we have designated FCC US Agent, LLC to accept service of process on our behalf for FCC ID: 2APDI-BCM-LZ100-AS BNCOM CO.LTD, accepts to maintain an agent of service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission- related administrative or judicial proceeding involving the equipment, whichever is later. FCC US Agent, LLC, accepts as of the date of the filing of this application, the obligation of being the designated agent for the purpose of accepting service of process on behalf of BNCOM CO.LTD for FCC ID: 2APDI-BCM-LZ100-AS Designated Agent Information: Company Name: FCC US Agent, LLC FRN: 0033402884 Address: 3722 Illinois Avenue, Saint Charles, IL, 60174, USA Contact Person: Tim Payne Phone: 708-571-3148 Email: [email protected] Sincerely, Company: BNCOM CO.LTD Designated Agent: FCC US Agent, LLC Company Representative: SUNG GON KIM Designated Agent Representative: Tim Payne Signature: Signature:

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Authorization v02 Page 1 of 1 BNCOM CO.LTD Federal Communications Commission Authorization and Evaluation Division 1435 Oakland Mills Road Columbia, MD 21046 Date: 2023-02-16 SUBJECT: FCC Application for (FCC ID: 2APDI-BCM-LZ100-AS) To Whom It May Concern: We, the undersigned, hereby authorize David Zhang in Vista Laboratories, Inc. on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Vista Laboratories, Inc. 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, the applicant, 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, (Must be signed by the person that is listed on the FCC Website) Client’s signature: Client’s name & title: SUNG GON KIM/ CEO Contact information / address: 82-31-427-6034 / 1106, M-Techno Center, 46, Gongdan-ro 140 Beon-gil, Gunpo-si, Gyeonggi-do, 15847, Korea

Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Confidentiality v03 Page 1 of 1 BNCOM CO.LTD Federal Communications Commission Authorization and Evaluation Division Confidentiality Request regarding application for certification of FCC ID: 2APDI-BCM- LZ100-AS 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: Type of Confidentiality Requested Exhibit Type ☐Short Term ☒Permanent Block Diagrams ☒Short Term External Photos ☒Short Term ☐Permanent* Internal Photos ☐Short Term ☒Permanent Operation Description ☐Short Term ☒Permanent Parts List/BOM ☐ Short Term ☒Permanent Schematics ☒Short Term Test Setup Photos ☒Short Term ☐Permanent* User manual *Requires further justification before permanent confidentiality will be allowed. 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. Permanent Confidentiality: The applicant requests the exhibits listed above as permanently confidential be withheld from public review due to materials that contain trade secrets and proprietary information not customarily released to the public. Short-Term Confidentiality: Pursuant to DA04-1705 June 15, 2004 of the Commission’s public notice, we also request temporary confidential treatment of information accompanying this application as outlined below for an initial period of 180 days. Sincerely, Client’s signature: Client’s name & title: SUNG GON KIM/ CEO Contact information / address: 82-31-427-6034 / 1106, M-Techno Center, 46, Gongdan-ro 140 Beon-gil, Gunpo-si, Gyeonggi-do, 15847, Korea

BNCOM CO.LTD Date: 04/17/2018 VCB_F-01: Operating Procedures Form – FCC Modular v02 Page 1 of 1 MODULAR APPROVAL LETTER (Product name) FCC ID : 2APDI-BCM-LZ100-AS, is seeking FCC Authorization as a Single Modular transmitter / Single Limited Modular Approval (Please check one) The EUT meets the requirements for Single Modular approval / Single Limited Modular Approval (please check one) as detailed in KDB 996369. Compliance to each of the requirements is described below: Modular Approval Requirement Yes No Please provide a detailed explanation if the answer is “No.” (i) The radio elements of the modular transmitter must have their own shielding. The physical crystal and tuning capacitors may be located external to the shielded radio elements. X (ii) The modular transmitter must have buffered modulation/data inputs (if such inputs are provided) to ensure that the module will comply with part 15 requirements under conditions of excessive data rates or over-modulation. X (iii) The modular transmitter must have its own power supply regulation. X (iv) The modular transmitter must comply with the antenna and transmission system requirements of §§ 15.203, 15.204(b) and 15.204(c). The antenna must either be permanently attached or employ a ‘‘unique’’ antenna coupler (at all connections between the module and the antenna, including the cable). The ‘‘professional installation’’ provision of § 15.203 is not applicable to modules but can apply to limited modular approvals under paragraph (b) of this section. X (v) The modular transmitter must be tested in a stand-alone configuration X (vi) The modular transmitter must be equipped with either a permanently affixed label or must be capable of electronically displaying its FCC identification number. X (vii) The modular transmitter must comply with any specific rules or operating requirements that ordinarily apply to a complete transmitter and the manufacturer must provide adequate instructions along with the module to explain any such requirements. A copy of these instructions must be included in the application for equipment authorization. X (viii) The modular transmitter must comply with any applicable RF exposure requirements in its final configuration. X Client’s signature: Client’s name & title: SUNG GON KIM / CEO Contact information / address: 82-31-427-6034 / 1106, M-Techno Center, 46, Gongdan-ro 140 Beon-gil, Gunpo-si, Gyeonggi-do, 15847, Korea

FCC ID: 2APDI-BCM-LZ100-AS Page 1 of 4 Upper Lower FCC ID: 2APDI-BCM-LZ100-AS Page 2 of 4 Side 1 Side 2 FCC ID: 2APDI-BCM-LZ100-AS Page 3 of 4 Side 3 Side 4 FCC ID: 2APDI-BCM-LZ100-AS Page 4 of 4 Antenna

FCC ID: 2APDI-BCM-LZ100-AS Copyright Ⓒ 2022, KRL Co., Ltd. SAMPLE LABEL & LOCATION BNCOM CO.LTD M/N: Bluetooth Module FCC ID: 2APDI-BCM-LZ100-AS

FCC ID: 2APDI-BCM-LZ100-AS Page 1 of 1 Main Board Front Main Board Rear

FCC ID: 2APDI-BCM-LZ100-AS * Maximum Permissible Exposure(MPE) 1. Applicable Standard Systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess limit for maximum permissible exposure. In accordance with 47 CFR FCC Part 2 Subpart J, section 2.1091 this device has been defined as a mobile device whereby a distance of 0.2m normally can be maintained between the user and the device. 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 1500-10000 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) 0.3-3.0 614 1.63 (100)* 30 3.0-30 824/f 2.19/f (180/f)* 30 30-300 27.5 0.073 0.2 30 300-1500 F/1500 30 1500-10000 1.0 30 Note : f=frequency in MHz *=Plane-wave equivalent power density FCC ID: 2APDI-BCM-LZ100-AS 2. MPE Calculation Method S = power density P = power input to antenna G = power gain of the antenna in the direction of interest relative to an isotropic radiator R = distance to the center of radiation of the antenna Predication of MPE limit at a given distance, Equation from OET Bulletin 65, Edition 97-01 S = PG/4πR 2 3. Calculated Result and Limit Mode Frequency (MHz) Maximum conducted power Antenna Gain Distance Power Density Limit dBm mW dBi mW Cm mW/cm 2 mW/cm 2 Bluetooth LE 1Mbps 2402 5.67 3.690 1.950 1.567 20 0.0012 1 2442 5.08 3.221 1.950 1.567 20 0.0010 1 2480 4.56 2.858 1.950 1.567 20 0.0009 1 Bluetooth LE 2Mbps 2402 5.66 3.681 1.950 1.567 20 0.0011 1 2442 5.16 3.281 1.950 1.567 20 0.0010 1 2480 4.64 2.911 1.950 1.567 20 0.0009 1

Introduction This application note is dedicated to the STM32WB Series microcontrollers. One of the main reasons to use a PCB (printed circuit board) antenna is the reduced overall cost of the radio module. Well designed and implemented PCB-printed antennas have a similar performance to the SMD (surface-mounted device) ceramic equivalence. In general, the footprint for a ceramic SMD antenna is smaller than that for a PCB-printed variant. For a PCB-printed antenna solution, the increased size of the PCB in relation to space required for the antenna means that the radio module is larger and the cost of the PCB increased. However the PCB solution is generally cheaper than a SMD ceramic antenna. The demonstration and development boards for the STM32WB Series implement PCB printed antenna based on this application note. Low cost PCB antenna for 2.4 GHz radio: meander design for STM32WB Series AN5129 Application note AN5129 - Rev 4 - April 2019 For further information contact your local STMicroelectronics sales office. www.st.com 1General information This document applies to STM32WB Series Arm ® -based devices. Note:Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere. AN5129 General information AN5129 - Rev 4 page 2/22 2Coordinate system For the purpose of this document, the spherical coordinate system illustrated in the figure below is used. Figure 1. Spherical coordinate system The PCB module is orientated vertically (plane X-Z) and located in proximity to the origin of the coordinate system. The azimuth angle radiates from the X-axis towards the Y-axis and the elevation angle radiates from the Z-axis towards the horizontal X-Y plane. Sometimes, as with geographical and navigational systems, the X-axis is called the "Nord-axis", the Yaxis is called the "East-axis" and the Z-axis is called the "Zenith-axis". AN5129 Coordinate system AN5129 - Rev 4 page 3/22 3Layout specification The PCB antennas, including the electrical parameters of PCB materials used, are layout sensitive. It is recommended to use a layout as close as possible to the one shown in the figure below. Figure 2. PCB antenna dimensions (in mm) The electrical parameters and performance of the PCB antenna are also determined by the substrate used, in particular the thickness of the core and dielectric constants. AN5129 Layout specification AN5129 - Rev 4 page 4/22 The figure below illustrates a typical cross-section of the substrate in a PCB-antennae area. Figure 3. PCB cross section at antennae area A substrate with the parameters as defined in the table below is recommended. Table 1. Recommended substrate specification Layer Dimensions Dielectric constant Ɛ R LabelValue (mil)Value (μm) Solder mask, topS10.717.784.4 Copper traceT1.640.64- CoreC28711.24.4 Solder mask, bottomS20.717.784.4 AN5129 Layout specification AN5129 - Rev 4 page 5/22 4Impedance matching Meander-like PCB antenna can be tuned to the required 50 Ω impedance by matching the impedance circuitry with the π topology. In Figure 2, the impedance matching area is marked with a dashed line. Under nominal conditions, this antenna exhibits and impedance very close to the required nominal impedance (50 Ω). To check the performance of this design, a sample antenna was manufactured (according to the specifications covered by this document). The figure below shows this antenna. Figure 4. Part of 802.15.4 and BLE PCB with meander-like antenna (scale around 4:1) Assuming that the manufactured sample exhibits the expected performance (no impedance matching necessary), the impedance matching circuitry is bypassed by two 100 pF capacitors connected in series, as shown in the figure below. Figure 5. Bypassing impedance matching circuitry - Direct RF connection All electrical parameters of the meander-like antenna have been measured at connection to the band-pass filter (BPF) with the frequency span covering frequencies from 2.4 GHz to 2.5 GHz. AN5129 Impedance matching AN5129 - Rev 4 page 6/22 Complex impedance of the antenna is shown in the Smith diagram in the figure below. Figure 6. Complex impedance of the meander-like antenna (Smith chart) The figure below shows the magnitude of the S11 parameter (in log scale). Figure 7. S11 parameter in logarithmic scale (Cartesian plot) AN5129 Impedance matching AN5129 - Rev 4 page 7/22 The figure below shows the standing wave ratio (SWR). Figure 8. Antenna standing wave ratio (SWR) The following changes affect the radiation impedance of the PCB antenna: • slight board size variation • metal shielding • use of plastic cover • presence of other components in proximity of the antenna The best performance impedance matching circuitry compensates these effects so that, for operating frequencies, the optimum 50 Ω impedance is achieved. AN5129 Impedance matching AN5129 - Rev 4 page 8/22 5Radiation pattern, 3-D visualization A three-dimensional (3-D) visualization of the radiation pattern (magnitude of the electrical far field |E|) is done for the center ISM band frequency 2.44175 GHz. Figure 9. 3-D radiation pattern overview Figure 10. Radiation pattern on X-Z plane AN5129 Radiation pattern, 3-D visualization AN5129 - Rev 4 page 9/22 6Radiation pattern, 2-D visualization In this section, all radiation patterns are related to the magnitude of electrical far field |E|, that is normalized and shown in the logarithmic scale (in dB). This means that the maximum global radiation pattern (maximum magnitude of the electrical far-field E) is represented by 0 dB level. To show the antenna radiation patterns in detail, three two dimensional (2-D) major cuts are presented. Consider the orientation of the module in the spherical coordinate system as shown in Figure 1. A three dimensional (3-D) far field radiation pattern is visualized as three two dimensional (2-D) cuts through a 3- D pattern. The following major planes are used for these cuts (see Figure 11): • one horizontal X-Y plane • two vertical planes: X-Z plan…

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KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Test report No.: KES-RF-23T0031 Page (1) of (53) This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP16-F01(00-23-01-01) KES A4 TEST REPORT Part 15 C & RSS-247 (Issue 2) Equipment under test Bluetooth module Model name BCM-LZ100-AS FCC ID 2APDI-BCM-LZ100-AS IC Certification No 8738A-BCMLZ100AS Applicant BNCOM CO.LTD Manufacturer BNCOM CO.LTD Date of test(s) 2023.02.01 ~ 2023.02.10 Date of issue 2023.02.10 Issued to BNCOM CO.LTD #1106, M-Techno Center, 46, Gongdan-ro 140 beon-gil, Gunpo-si, Gyeonggi-do, Republic of Korea. Tel: +82-031-427-6034 / Fax: +82-031-427-8907 Issued by KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea 473-21, Gayeo-ro, Yeoju-si, Gyeonggi-do, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 This test report is not related to KS Q ISO/IEC 17025 and KOLAS. Test and report completed by : Report approval by : Do-won, Ahn Test engineer Young-Jin Lee Technical manager KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Test report No.: KES-RF-23T0031 Page (2) of (53) This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP16-F01(00-23-01-01) KES A4 Revision history Revision Date of issue Test report No. Description - 2023.02.10 KES-RF-23T0031 Initial KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Test report No.: KES-RF-23T0031 Page (3) of (53) This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP16-F01(00-23-01-01) KES A4 TABLE OF CONTENTS 1. General information ................................................................................................................................................... 4 1.1. EUT description ........................................................................................................................................ 4 1.2. Test configuration ...................................................................................................................................... 5 1.3. Derivative Model Information ................................................................................................................... 5 1.4. Accessory information............................................................................................................................... 5 1.5. Sample calculation .................................................................................................................................... 5 1.6. Measurement Uncertainty ......................................................................................................................... 5 1.8. Frequency/channel operations ................................................................................................................... 6 2. Summary of tests ........................................................................................................................................................ 6 3. Test results ............................................................................................................................................................. 7 3.1. 99% Occupied Bandwidth ......................................................................................................................... 7 3.2. 6 ㏈ bandwidth ...................................................................................................................................... 10 3.3. Output power ........................................................................................................................................... 13 3.4. Power spectral density ............................................................................................................................. 15 3.5. Radiated restricted band and emissions ................................................................................................... 19 3.6 Conducted spurious emissions & band edge ........................................................................................... 43 3.7 AC conducted emissions ......................................................................................................................... 50 Appendix A. Measurement equipment ......................................................................................................................... 52 Appendix B. Test setup photos ..................................................................................................................................... 53 KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Test report No.: KES-RF-23T0031 Page (4) of (53) This report shall not be reproduced except in full, without the written approval of KES Co., Ltd. The results shown in this test report refer only to the sample(s) tested unless otherwise stated. The authenticity of the test report, contact [email protected] KES-QP16-F01(00-23-01-01) KES A4 1. General information Applicant: BNCOM CO.LTD Applicant address: #1106, M-Techno C…

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KES Co., Ltd. 3701, 40, Simin-daero 365beon-gil, Dongan-gu, Anyang-si, Gyeonggi-do, 14057, Korea Tel: +82-31-425-6200 / Fax: +82-31-424-0450 www.kes.co.kr Appendix B. Test setup photos Radiated emissions Conducted emissions N/A