2AFOS-WT52840-S1Bluetooth Module

WIRELESS-TAG TECHNOLOGY CO., LIMITED

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Application Details

Equipment Class: DTS - Digital Transmission System
Date of Grant: Nov 28, 2020
Application Purpose: Original Equipment
Date of Application: Nov 26, 2020
Equipment Note: Bluetooth Module
Frequency Range: 2402.00000000 - 2480.00000000
Company: WIRELESS-TAG TECHNOLOGY CO., LIMITED
Country: China

Documents & Files

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Document Text

Text extracted from the exhibit documents filed with the FCC. Open a document above to read the original.

Users Manual

www.wireless-tag.comWT52840-S1 1 / 27 Wireless-Tag [email protected] Wireless-Tag WT52840-S1 Bluetooth Low Energy 5.0 Module DATASHEET Overview: WT52840-S1 is a high-performance, ultra-low energy (Bluetooth Low Energy) RF transceiver system module that uses Nordic’s nRF52840 as the core processor. The overall size is27.28*18.74*2.30, which is suitable for most application scenarios with volume requirements. The module supports Bluetooth S140 SoftDevice, a Bluetooth 5.0 pre-qualified protocol stack. The module is used as a master or a slave, and the client’s MCU is connected to the module through the UART port. When the module is used as a master, it can scan and search for the broadcast of our WT52810-S1, WT52832-S2, WT52840-S1 series modules to establish a connection. After successful connection, the two-way communication between the two modules can be realized through the serial port. The user can exchange data or control the communication parameters of the module through the UART port. The meaning of the data is defined by the upper application user. When the module is used as a slave, it can be connected by other mobile devices or master modules. App or master data will be received by the module and pushed to MCU through UART. After the module receives the data packet from the serial port of the client’s MCU, it will automatically forward it to the mobile device or master. Features: Operating temperature: -25°C~75°C，typical 25°C CPU: nRF52840-QIAA（32-bit ARM Cortex-M4F processor） Memory: 1MB flash + 256KB RAM memory Transparent transmission（Bridged method），easy and fast to use even for developers without Bluetooth protocol stack development experience; Adopt standard UART（TTL） interface, bidirectional data reading and simple to operate; Support serial AT commands, users can modify the module's serial port baud rate（default 115200bps）, name, MAC address and other basic parameters; Support master mode or slave mode; Serial data packet length: single data packet can support data length up to 244bytes; Operating distance: 0~45m, class II level; System: support Android and IOS; Supply voltage: 2.0～3.6V（3.3V typical）; The module comes with a PCB antenna, and an external antenna can also be used (customization required); Module size：27.28*18.74*2.30mm Sleep current: 0.3uA www.wireless-tag.comWT52840-S1 2 / 27 Wireless-TagTechnologywww.wireless-tag.comtechnical@wireless-tag.com Applications:  Electronicscales  Electroniccigarettes  Smartcups  Smartbracelets  Smartwatches  Bluetoothtoys  Intelligenthardware  Smarthome www.wireless-tag.comWT52840-S1 3 / 27 Wireless-TagTechnologywww.wireless-tag.comtechnical@wireless-tag.com RevisionHistory VersionAuthorDateDescription 0.0.1BrussinAugust14,2020Firstrelease www.wireless-tag.comWT52840-S1 4 / 27 Wireless-TagTechnologywww.wireless-tag.comtechnical@wireless-tag.com Contents 1.WorkingModeDiagram ............................................................................................... 6 2.ModulePinDefinitionsandModuleSize ................................................................... 7 2.1PinDescription ........................................................................................................................... 7 2.2ModulePackageSize .................................................................................................................. 8 2.3ReflowSolderingReferenceDiagram ........................................................................................ 9 3.ModulePowerConsumptionDescription .................................................................. 9 4.SerialTransparentTransmissionProtocolInstructions ........................................... 9 5.SerialATCommandsDescription ............................................................................. 10 5.1TestCommand .......................................................................................................................... 11 5.2QueryModuleVersionCommand ........................................................................................... 11 5.3ModuleResetCommand ......................................................................................................... 11 5.4SerialBaudRateOperationCommand .................................................................................... 12 5.5MACAddressOperationCommand ......................................................................................... 12 5.6DeviceRoleOperationCommand ............................................................................................ 12 5.7BluetoothNameOperationCommand .................................................................................... 13 5.8SetBluetoothAdvertisingIntervalCommand ......................................................................... 13 5.9BluetoothAdvertisingOperationCommand ........................................................................... 13 5.10MasterScanningOperationCommand ................................................................................. 14 5.11SetBluetoothConnectionIntervalTimeCommand .............................................................. 14 5.12BluetoothConnectionOperationCommand ......................................................................... 14 5.13TransmitPowerOperationCommand ................................................................................... 15 5.14RestoreDefaultConfigurationCommand .............................................................................. 15 5.15CustomAdvertisingDataCommand ...................................................................................... 16 5.16CustomProductSerialNumberCommand ............................................................................ 16 5.17QueryBluetoothStatusCommand ........................................................................................ 16 5.18SetLowPowerSleepModeCommand ..............…

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Cover Letter(s)

C5266091_X8_Ed.1 1/1 Letter of Authorization Company: Wireless-Tag Technology Co., Ltd Address: Room 115-118, Building A, Chengshishanhai Center, No. 11, Zhongxing Road, Bantian Sub-District, Longgang district, Shenzhen, 518000 China Product Name: Bluetooth Module Model Number: WT52840-S1 FCC Identifier: 2AFOS-WT52840-S1 We authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, to act on our behalf on all matters concerning the above named equipment. Any individual within LGAI Technological Center S.A. is authorized to act on our behalf and take action on the application. We declare that authorize LGAI Technological Center S.A., Ronda de la Font del Carme, s/n, 08193 Bellaterra, Spain, is allowed to forward all information related to the approval project to the Federal Communication Commission and to discuss any issues concerning the approval application. Any and all acts carried out by LGAI Technological Center S.A. on our behalf shall have the same effect as acts of our own. Name: Louie Wang Date: 11/20/2020 Title: Manager Signature of applicant:

Cover Letter(s)

C5266091_X10_Ed.1 1/1 Wireless-Tag Technology Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 Date: 11/20/2020 Subject: Request for Confidentiality FCC ID: 2AFOS-WT52840-S1 To Whom It May Concern, Pursuant to the provisions of Sections 0.457 and 0.459 of Commission's rules (47CFR0.457, 0.459), we are requesting the Commission to withhold the following attachment(s) as confidential document from public disclosure. Exhibits Long-Term Confidentiality Short-Term Confidentiality ID Label/Location No No Attestation Statement No No External Photos No Block Diagram Schematics Test Report No No Test Setup Photos No User’s Manual Internal Photos Parts List / Tune Up RF Exposure Info Operational Description Cover Letter(s) No No SDR Software / Security Info No Above mentioned document contains detailed system and equipment description are considered as proprietary information in operation of the equipment. The public disclosure of above documents might be harmful to our company and would give competitor an unfair advantage in the market. It is our understanding that all measurement test reports, FCC ID label format and correspondent during certification review process cannot be granted as confidential documents and those information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name: Louie Wang Date: 11/20/2020 C5266091_X10_Ed.1 1/1 Title: Manager

Cover Letter(s)

C5266091_X9_Ed.1 1/1 Wireless-Tag Technology Co., Limited Modular Transmitter Approval Request Federal Communications Commission Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Company name: Wireless-Tag Technology Co., Limited FCC ID: 2AFOS-WT52840-S1 Gentlemen, In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Certification Guide v01r04’. FCC ID: 2AFOS-WT52840-S1 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 ‘Modular Certification Guide v01r04 Explanation from Grantee (do not write yes/no, but explain why product complies/how it is achieved) The radio elements must have the radio frequency circuitry shielded. Physical components and tuning capacitor(s) may be located external to the shield, but must be on the module assembly Yes, The module has its own RF shield The module must have buffered modulation/data inputs to ensure that the device will comply with Part 15 requirements with any type of input signal Yes, The module has data transmission function and supports 2.4G BLE function. The module must contain power supply regulation on the module Module with power regulation and support for DC 3.3V input The module must contain a permanently attached antenna, or contain a unique antenna connector, and be marketed and operated only with specific antenna(s), per Sections 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b) The module meets the antenna requirements. The module must demonstrate compliance in a stand- alone configuration The module has been tested in a stand alone configuration, see report for details The module must be labelled with its permanently affixed FCC ID label, or use an electronic display (See KDB Publication 784748 about labelling requirements) The module has its own FCC ID number. See the label for details. The module must comply with all specific rules applicable to the transmitter including all the conditions provided in the integration instructions by the grantee The module meets any specific rules or operational requirements applicable to the transmitter The module must comply with RF exposure requirements The module complies with any applicable RF exposure requirements, as detailed in the instructions. Name: Louie Wang Date: 2020-11-20 Title: Manager Signature of applicant

External Photos

1 - Page 1 of 2 - Report No.: MTi20101310-1E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. APPENDIX 1: EUT PHOTO Photo 1 (For model WT52840-S1) Photo 2 1 - Page 2 of 2 - Report No.: MTi20101310-1E1-1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Photo 3 Photo 4 ----END OF REPORT---- PCB Antenna

ID Label/Location Info

13.9*8.4mm Bluetooth Module Model: WT52840-S1 Input: 3.3V 0.5A FCC ID:2AFOS-WT52840-S1 Wireless-Tag Technology Co., LTD Room 115-118, Building A, Chengshishanhai Center, No. 11, Zhongxing Road, Bantian Sub-District, Longgang district, Shenzhen, 518000 China Importer: XXXXXXXX Address : XXXXXXXX

Internal Photos

RF Exposure Info

Test Report

This test report is valid for the tested samples only. It cannot be reproduced except in full without prior written consent of Shenzhen Microtest Co., Ltd. Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Test Report FCC ID: 2AFOS-WT52840-S1 Date of issue: Nov. 17, 2020 Report number: MTi20101310-1E1 Sample description: Bluetooth Module Mo d e l( s ) : WT52840-S1 Applicant: Wireless-Tag Technology Co., Ltd Address: Room 115-118, Building A, Chengshishanhai Center, No. 11, Zhongxing Road, Bantian Sub-District, Longgang district, Shenzhen, 518000 China Date of test: Oct. 28, 2020 –Nov. 17, 2020 Shenzhen Microtest Co., Ltd. http://www.mtitest.com - Page 2 of 40 - Report No.: MTi20101310-1E1 Tel:(86-755)88850135 Fax: (86-755) 88850136 Web: http://www.mtitest.com E-mail: [email protected] Address: 101, No. 7, Zone 2, Xinxing Industrial Park, Fuhai Avenue, Xinhe Community, Fuhai Street, Bao’ an District, Shenzhen, Guangdong, China. Table of Contents 1. GENERAL INFORMATION ................................................................................................................................... 5 1.1. DESCRIPTION OF EUT ................................................................................................................................................... 5 1.2. OPERATION CHANNEL LIST .............................................................................................................................................. 5 1.3. TEST CHANNEL LIST ....................................................................................................................................................... 6 1.4. ANCILLARY EQUIPMENT LIST ........................................................................................................................................... 6 1.5. DESCRIPTION OF SUPPORT UNITS .................................................................................................................................... 6 2. SUMMARY OF TEST RESULTS .......................................................................................................................... 7 3. TEST FACILITIES AND ACCREDITATIONS ...................................................................................................... 8 3.1. TEST LABORATORY ........................................................................................................................................................ 8 3.2. ENVIRONMENTAL CONDITIONS ........................................................................................................................................ 8 3.3. MEASUREMENT UNCERTAINTY ........................................................................................................................................ 8 3.4. TEST SOFTWARE ........................................................................................................................................................... 8 4. EQUIPMENT LIST ................................................................................................................................................. 9 5. TEST RESULT ..................................................................................................................................................... 10 5.1. ANTENNA REQUIREMENT ............................................................................................................................................. 10 5.1.1 Standard Requirement ...................................................................................................................................... 10 5.1.2 EUT Antenna ..................................................................................................................................................... 10 5.2. PEAK OUTPUT POWER TEST ......................................................................................................................................... 11 5.2.1 Limit .................................................................................................................................................................. 11 5.2.2 Test setup .......................................................................................................................................................... 11 5.2.3 Test Procedure ................................................................................................................................................... 11 5.2.4 Test Results ........................................................................................................................................................ 11 5.3. CONDUCTED EMISSION ................................................................................................................................................ 14 5.3.1 Limits ................................................................................................................................................................. 14 5.3.2 Test Setup .......................................................................................................................................................... 14 5.3.3 Test Procedure ................................................................................................................................................... 15 5.3.4 Test Results ........................................................................................................................................................ 15 5.4. RADIATED SPURIOUS EMISSION ...................................................................................................................................... 16 5.4.1 Limits .....................................................................................…

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Test Setup Photos

Model: WT52840-S1 Radiated emission

Contact Information

Applicant

Louie Wang(Manager)

[email protected]0755-22677752Fax: 0755-22677752

Technical Contact

Shenzhen Microtest Co., LtdSmith Chen

[email protected]86-755 88850135

Shenzhen · China

Test Firm

Shenzhen Microtest Co., Ltd.Selby Liao

[email protected]0755-88850135-1193

Technical Specifications

#	Rule Parts	Frequency Range	Power Output
1	15C	2.40 GHz - 2.48 GHz	700.00 µW

Modular Type

Single Modular Approval

Confidentiality

Long Term

Grant Notes

Single Modular Approval. Output power listed is conducted. Grantee is responsible for providing specific testing instructions to host manufacturers for additional testing to verify compliance as a composite system. This includes retesting of transmitter module per part 15.31(h) and (k) and verification of compliance with FCC RF Exposure requirements. Separate approval is required for all other operating configurations, including portable configurations with respect to 2.1093. The antenna(s) used for this transmitter must be installed to provide a separation distance of at least 20 cm from all persons. OEM integrators and end-users must be provided with transmitter operation conditions for satisfying RF exposure compliance.