2AYCN-RE740WIFI & BLE Module

FCC ID：2AYCN-RE740 RE740 User manual Product Description RE740 is the latest WIFI/BLE SOC SV32WB01 chip design in Southern Silicon Valley, adopting advanced design technology to achieve low power consumption and high throughput; WLAN MAC,Baseband and RF is integrated on the hardware of the module.Chip internal integration MCU, main frequency 320 MHz,384 KB SRAM, built 16Mb ROM. Working at 2.4 GHz, Support 802.11 b/g/n wireless standards and BLE5.0.The module uses 3.3~5V single power supply, SMT installation mode, So that the module can be flexibly applied to all kinds of consumer products. Product Features WLAN  Working Frequency : 2400MHz-2483.5MHz  Support 802.11b/g/n  Support HT20/HT40  Support STA/AP work mode  Support WEP,WPA/WPA2/WPA3  Integration 16Mbit SPI flash Bluetooth  Working Frequency : 2400MHz-2483.5MHz  Support BLE 5.0  Support for simultaneous receiving / broadcast / scan operation mode  Support for the SIG Mesh V1.01 protocol  Support GATT and Mesh protocol Pin Functions Pin No. Name Functions Description 1 VDD VCC 3.3V 2 GND Power reference ground 3 GPIO 21 PWM / GPIO FCC ID：2AYCN-RE740 Note:The host interface is designed strictly according to the module interface and installed into the host product. Product Specification Product model RE740 Frequency Band b/g/n20:2412-2462MHz n40:2422-2452MHz BLE:2402-2480MHz Modulation mode 802.11b: CCK, DQPSK, DBPSK 802.11g: 64-QAM,16-QAM, QPSK, BPSK With OFDM 802.11n: 64-QAM,16-QAM, QPSK, BPSK With OFDM BLE:GFSK Operation mode Infrastructure, Ad-Hoc Security mechanism WEP/WPA/WPA2/WPA3 Operating Voltage 3.3-5V Antenna Type PCB Antenna FCC Statement This device complies with part 15 of the FCC rules. Operation is subject to the following two condi tions: (1) this device may not cause harmful interference, and (2) this device must accept any inte rference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could v oid the user’s authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital de vice, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protec tion against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructi ons, may cause harmful interference to radio communications. However, there is no guarantee th at interference will not occur in a particular installation. If this equipment does cause harmful int erference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ‐ Reorient or relocate the receiving antenna. ‐ Increase the separation between the equipment and receiver. ‐Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ‐Consult the dealer or an experienced radio/TV technician for help important announcement Important Note: 4 GPIO 20 PWM / GPIO 5 GPIO 19 PWM / GPIO 6 GPIO 37 PWM/ADC7/UART2_RX /I2C_ SDA/GPIO 7 GPIO 36 PWM/ADC6/UART2_TX /I2C_ CLK/GPIO FCC ID：2AYCN-RE740 Radiation Exposure Statement This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 0cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Country Code selection feature to be disabled for products marketed to the US/Canada. This device is intended only for OEM integrators under the following conditions: 1. The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2. The transmitter module may not be co-located with any other transmitter or antenna, 3. For all products market in US, OEM has to limit the operation channels in CH1 to CH11 for 2.4G band by supplied firmware programming tool. OEM shall not supply any tool or info to the end-user regarding to Regulatory Domain change. (if modular only test Channel 1-11) As long as the three conditions above are met, further transmitter testing will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed. Important Note: In the event that these conditions cannot be met (for example certain laptop configurations or co-location with another transmitter), then the FCC authorization is no longer considered valid and the FCC ID cannot be used on the final product. In these circumstances, the OEM integrator will be responsible for re-evaluating the end product (including the transmitter) and obtaining a separate FCC authorization. End Product Labeling The final end product must be labeled in a visible area with the following" Contains FCC ID: 2AYCN-RE740" Manual Information to the End User The OEM integrator has to be aware not to provide information to the end user regarding how to install or remove this RF module in the user’s manual of the end product which integrates this module. The end user manual shall include all required regulatory information/warning as show in this manual. Integration instructions for host product manufacturers according to KDB 996369 D03 OEM Manual v01 2.2 List of applicable FCC rules CFR 47 FCC PART 15 SUBPART C has been investigated. It is applicable to the modular transmitter 2.3 Specific operational use conditions This module is stand-alone modular. If the end product will involve the Multiple simultaneously transmitting condition or different operational conditions for a stand-alone modular transmitter in a host, host manufacturer have to consult with module manufacturer for the installatio…

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Shenzhen Water World Co., Ltd Agent Authorization Company: Shenzhen Water World Co., Ltd Address: No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Product Name: WIFI & BLE Module Trade Mark: N/A Model Number(s): RE740 FCC ID: 2AYCN-RE740 We authorize MiCOM Labs Inc., 575 Boulder Court, Pleasanton, California 94566, USA, to act on our behalf on all matters concerning the certification of above named equipment. We declare that MiCOM Labs Inc. is allowed to forward all information related to the approval and certification of equipment to the regulatory agencies as required and to discuss any issues concerning the approval application. Any and all acts carried out by MiCOM Labs on our behalf shall have the same effect as acts of our own. Signature: Date: 2021-05-14 Name: Huang Fang Title: Human Resource Director Company: Shenzhen Water World Co., Ltd

Shenzhen Water World Co., Ltd FCC Modular Approval Request Rev 3.0 Federal Communications Commission Equipment Authorization Division 7435 Oakland Mills Road Columbia, MD 21046 USA Date: Subject; Limited module Approval Request Letter Company name: WIFI & BLE Module FCC ID: 2AYCN-RE740 Dear Sir/Madam, This letter includes the FCC application requirements for Modular Transmitter Approval Request for;- FCC KDB 996369 D01 ‘Module Certification Guide v02; and FCC KDB 996369 D03 OEM Manual v01 In accordance with 47CFR 15.212 Modular Transmitters and KDB 996369 D01 ‘Module Equip Auth Guide v02’. FCC ID: 2AYCN-RE740 has been examined against the following requirements. Requirement per 15.212 and KDB 996369 D01 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. No 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 must contain power supply regulation on the module. The modular has an onboard 3.3V regulator(integrated in SV32WB01). 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 §§ 15.203, 15.204(b), 15.204(c), 15.212(a), 2.929(b). The modular has a PCB antenna which comply with the antenna requirement of Section 15.203,Maximum Antenna Gain is 1.0dBi. The module must demonstrate compliance in a stand-alone configuration. The modular was tested in a standalone configuration apart from host units. The module must be labeled with its permanently affixed FCC ID label, or use an electronic display (see KDB Publication 784748). The modular has its own FCC ID number. The module must comply with all specific rules applicable to the transmitter, including all the conditions provided in the integration instructions by the grantee. Yes Shenzhen Water World Co., Ltd FCC Modular Approval Request Rev 3.0 The module must comply with RF exposure requirements Yes, RF cexposure evaluation performed at 20cm. Integration Instructions for host product manufacturers The following items are submitted in support of application for Modular Transmitter FCC ID as noted above as required by the FCC KDB 996369 D03 OEM Manual v01. These items are provided as integration instructions for host product manufacturers (e.g., OEM instruction manual) to use when integrating a module in a host product. Any requirements that are not applicable to the Module are as indicated below. Summary of requirements and Checklist. Refer to the KDB for description of the complete requirements; KDB Ref Sect Requirements of KDB 996369 D03 User Manual Page Number reference 2.2 List of applicable FCC rules Page 18 2.3 Summarize the specific operational use conditions Page 18 2.4 Limited module procedures Page 18 2.5 Trace antenna designs Page 18 2.6 RF exposure considerations Page 18 2.7 Antennas Page 18 2.8 Label and compliance information Page 18 2.9 Information on test modes and additional testing requirements Page 18 2.10 Additional testing, Part 15 Subpart B disclaimer Page 18 Name: Huang Fang Date: 2021-05-18 Title: Human Resource Director Signature of applicant

Shenzhen Water World Co., Ltd Office of Engineering Technology Federal Communications Commission 7435 Oakland Mills Road Columbia, MD 21046 USA Date: 2021-05-18 Subject; Request for Confidentiality FCC ID: 2AYCN-RE740 To Whom It May Concern, Pursuant to the provisions of the Commission’s rules Title 47 Sections §0.457 and §0.459, we are requesting the Commission to withhold the following attachment(s) as confidential documents from public disclosure indefinitely. These documents contain detailed system and equipment descriptions and are considered as proprietary information in operation of the equipment. The public disclosure of these documents might be harmful to our company and would give competitors an unfair advantage in the market. Schematic Diagram Block Diagram Operational Description BOM Software Security Requirements In additional to above mentioned documents, in order to comply with the marketing regulations in Title 47 CFR §2.803 and the importation rules in Title 47 CFR §2.1204, while ensuring that business sensitive information remains confidential until the actual marketing of newly authorized devices, we request Short Term Confidentiality of the following attachment(s); External Photos Test Setup Photos Internal Photos User Manual For 45 days, pursuant to Public Notice DA 04-1705. OR For 180 days pursuant to KDB 726920 D01. It is our understanding that all measurement test reports, FCC ID label format and correspondence during the certification review process cannot be granted as confidential documents and this information will be available for public review once the grant of equipment authorization is issued. Sincerely, Signature: Name / Title: Huang Fang / Human Resource Director Company: Shenzhen Water World Co., Ltd Address: No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Phone: 0755-21608686 Fax: 0755-26027070 E-Mail: [email protected]

Page 1 of 1 Rev.2.0 Shenzhen Water World Co., Ltd WIFI Channel 12 and 13 Declaration Letter We declare the equipment identified below with regards to Channel 12 and 13 capabilities for FCC ID: 2AYCN-RE740 Declaration Product hardware does not have the capability to operate on Channel 12 and 13. Product hardware has the capability to operate on Channel 12 and 13. However, these two channels will be disabled via software and will not be accessible to user. Product hardware has the capability to operate on Channel 12 and 13. However, all the operated channels can’t be changed in the RF parameter via software. All channels have complied with all of the requirements sets out in FCC Part 15.247. Product hardware has the capability to operate on WiFi Channel 12 and 13, and meets the requirements of KDB 594280 D01 v02r01. Please note: 1.) By default, this device operates in a mode that is compliant with the U.S. requirements. 2.) This device will also use supplemental information such as geo-location data to determine that it is operating outside the U.S., if necessary, to change its power. Such supplemental data will be derived from the following: Global Navigation Satellite System (GNSS)7 sensors in the device Mobile Country Code (MCC),8 or MCC with a Mobile Network code (MNC), received from a CMRS9 carrier and received directly by a receiver on the device Country information derived from multiple adjacent access points (for example using IEEE Std 802.11d provisions) may be permitted on case-by-case basis Other suitable geo-location data based on IP addresses or other reliable source. Name / Title: Huang Fang / Human Resource Director Signature: Phone: 0755-21608686 Email: [email protected] Date: 2021-05-18

FCC ID: 2AYCN-RE740 Fig. 1 Fig. 2 Antenna FCC ID: 2AYCN-RE740 Fig. 3

_____________________________________________________________________________________________________ LABEL AND LOCATION (Size: L0.5cm x 0.5cm) Label Location

FCC ID: 2AYCN-RE740 Fig. 1 Fig. 2 Antenna FCC ID: 2AYCN-RE740 Fig. 3

Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong RF Exposure evaluation Report Reference No...................... : FCC ID. ............................................ : GTS20210426017-1-3 2AYCN-RE740 Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Oliver Ou Approved by ( position+printed name+signature) . : Manager Simon Hu Date of issue .................................... : May.14, 2021 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong Applicant’s name ............................ : Shenzhen Water World Co., Ltd Address ............................................ : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test specification ........................... : Standard ........................................... : 47CFR §1.1310 47CFR §2.1091 KDB447498 D01 General RF Exposure Guidance v06 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : WIFI & BLE Module Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Water World Co., Ltd Model/Type reference ...................... : RE740 Listed Models .................................. : N/A Modulation Type ............................... : IEEE 802.11a /802.11b/802.11g/802.11n/802.11ac Operation Frequency........................ : From 2412MHz to 2462MHz, 2402MHz to 2480MHz Hardware Version ............................ : RE740-MB-V0.3 Software Version .............................. : V1.0 Rating ............................................... : DC 3.3V Result ............................................... : PASS Report No.: GTS20210426017-1-3 Page 2 of 11 T E S T R E P O R T Test Report No. : GTS20210426017-1-3 May.14, 2021 ______________________________________________________________________________________________ Date of issue Equipment under Test : WIFI & BLE Module Model /Type : RE740 Listed model : N/A Applicant : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Manufacturer : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20210426017-1-3 Page 3 of 11 Contents 1. SUMMARY ................................................................................................................................................................. 4 1.1 EUT CONFIGURATION ........................................................................................................................................................ 4 1.2 PRODUCT DESCRIPTION ..................................................................................................................................................... 4 2. TEST ENVIRONMENT ................................................................................................................................................. 5 2.1 ADDRESS OF THE TEST LABORATORY ..................................................................................................................................... 5 2.2 TEST FACILITY .................................................................................................................................................................. 5 2.3 ENVIRONMENTAL CONDITIONS ............................................................................................................................................ 5 2.4 STATEMENT OF THE MEASUREMENT UNCERTAINTY .................................................................................................................. 5 3. METHOD OF MEASUREMENT .................................................................................................................................... 6 3.1 APPLICABLE STANDARD ...................................................................................................................................................... 6 3.2 REQUIREMENT ................................................................................................................................................................. 6 3.3 LIMIT ............................................................................................................................................................................. 6 3.4 MPE CALCULATION METHOD ............................................................................................................................................. 7 3.5 ANTENNA INFORMATION .................…

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Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. ..................... : FCC ID............................................. : GTS20210426017-1-1 2AYCN-RE740 Compiled by ( position+printed name+signature) . : File administrators Peter Xiao Supervised by ( position+printed name+signature) . : Test Engineer Oliver Ou Approved by ( position+printed name+signature) . : Manager Simon Hu Date of issue .................................... : May.14, 2021 Representative Laboratory Name . : Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Shenzhen Water World Co., Ltd Address ............................................ : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test specification ........................... : Standard ........................................... : FCC Part 15.247 TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ...................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description ..................... : WIFI & BLE Module Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Water World Co., Ltd Model/Type reference ...................... : RE740 Listed Models .................................. : N/A Modulation Type ............................... : GFSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version ............................ : RE740-MB-V0.3 Software Version .............................. : V1.0 Rating ............................................... : DC 3.3V Result ............................................... : PASS Report No.: GTS20210426017-1-1 Page 2 of 29 T E S T R E P O R T Test Report No. : GTS20210426017-1-1 May.14, 2021 ______________________________________________________________________________________________ Date of issue Equipment under Test : WIFI & BLE Module Model /Type : RE740 Listed model : N/A Applicant : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Manufacturer : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20210426017-1-1 Page 3 of 29 Contents 1. TEST STANDARDS ......................................................................................................................................... 4 2. SUMMARY ....................................................................................................................................................... 5 2.1. General Remarks ................................................................................................................................... 5 2.2. Product Description ................................................................................................................................ 5 2.3. Equipment Under Test ........................................................................................................................... 6 2.4. Short description of the Equipment under Test (EUT) ........................................................................... 6 2.5. EUT operation mode .............................................................................................................................. 6 2.6. Block Diagram of Test Setup ................................................................................................................. 7 2.7. EUT Exercise Software .......................................................................................................................... 7 2.8. Special Accessories ............................................................................................................................... 7 2.9. External I/O Cable .................................................................................................................................. 7 2.10. Related Submittal(s) / Grant (s) ........................................................................................................... 7 2.11. Modifications ........................................................................................................................................ 7 3. TEST ENVIRONMENT ..................................................................................................................................... 8 3.1. Address of the test laboratory ................................................................................................................ 8 3.2. Test Facility .................................................................…

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Shenzhen Global Test Service Co.,Ltd. No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong FCC PART 15 SUBPART C TEST REPORT FCC PART 15.247 Report Reference No. .....................: FCC ID. ............................................ : GTS20210426017-1-2 2AYCN-RE740 Compiled by ( position+printed name+signature) .. : File administrators Peter Xiao Supervised by ( position+printed name+signature) .. : Test Engineer Oliver Ou Approved by ( position+printed name+signature) .. : Manager Simon Hu Date of issue ..................................... : May.14, 2021 Representative Laboratory Name .: Shenzhen Global Test Service Co.,Ltd. Address ............................................ : No.7-101 and 8A-104, Building 7 and 8, DCC Cultural and Creative Garden, No.98, Pingxin North Road, Shangmugu Community, Pinghu Street, Longgang District, Shenzhen, Guangdong,China Applicant’s name ............................ : Shenzhen Water World Co., Ltd Address ............................................ : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test specification ...........................: Standard ........................................... : FCC Part 15.247: Operation within the bands 902-928 MHz, 2400- 2483.5 MHz and 5725-5850 MHz TRF Originator .................................. : Shenzhen Global Test Service Co.,Ltd. Master TRF ....................................... : Dated 2014-12 Shenzhen Global Test Service Co.,Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Global Test Service Co.,Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Global Test Service Co.,Ltd. takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Test item description .....................: WIFI & BLE Module Trade Mark ....................................... : N/A Manufacturer .................................... : Shenzhen Water World Co., Ltd Model/Type reference....................... : RE740 Listed Models .................................. : N/A Operation Frequency ........................ : From 2412MHz to 2462MHz Hardware Version ............................ : RE740-MB-V0.3 Software Version .............................. : V1.0 Rating ............................................... : DC 3.3V Result................................................ : PASS Report No.: GTS20210426017-1-2 Page 2 of 32 T E S T R E P O R T Test Report No. : GTS20210426017-1-2 May.14, 2021 ____________________________________________________________________________________ Date of issue Equipment under Test : WIFI & BLE Module Model /Type : RE740 Listed model : N/A Applicant : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Manufacturer : Shenzhen Water World Co., Ltd Address : No. 602, Block B, Digital Building, Garden City, NO. 1079, Nanhai Road, Shekou Subdistrict, Nanshan District, Shenzhen, Guangdong, China Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: GTS20210426017-1-2 Page 3 of 32…

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