Shenzhen Water World RE740 WIFI and BLE Module User Manual

: June 6, 2024
: Shenzhen Water World

Shenzhen Water World RE740 WIFI and BLE Module 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

4	GPIO 20	PWM / GPIO
5	GPIO 19	PWM / GPIO
6	GPIO 37	PWM/ADC7/UART2RX /I2C SDA/GPIO
7	GPIO 36	PWM/ADC6/UART2TX /I2C CLK/GPIO

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 conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void 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 protection 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 instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference 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:

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:

The antenna must be installed such that 20 cm is maintained between the antenna and users, and
The transmitter module may not be co-located with any other transmitter or antenna,
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 installation method in end system.

FCC ID：2AYCN-RE740

2.4 Limited module procedures

This module is Limited single modular without shielding, host manufacturer have to consult with module manufacturer for the module limiting conditions when integrate the module in the host. module manufacturer should reviews detailed test data or host designs prior to giving the host manufacturer approval.

2.5 Trace antenna designs

Not applicable

2.6 RF exposure considerations

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body.

2.7 Antennas

This radio transmitter 2AYCN-RE740 has been approved by Federal Communications Commission to operate with the antenna types listed below, with the maximum permissible gain indicated. Antenna types not included in this list that have a gain greater than the maximum gain indicated for any type listed are strictly prohibited for use with this device.

Model

|

Type

|

Connector

| Peak gain ( dBi )
---|---|---|---
2400-2483.5

MHz

| 5150-5250

MHz

| 5250-5350

MHz

| 5470-5725

MHz

| 5725-5850

MHz

2400-2483.5

MHz

| PCB

Antenna

| /| 1.0dBi| /| /| /| /

2.8 Label and compliance information

The final end product must be labeled in a visible area with the following” Contains FCC ID:2AYCN-RE740″.

2.9 Information on test modes and additional testing requirements

Host manufacturer is strongly recommended to confirm compliance with FCC requirements for the transmitter when the module is installed in the host.

2.10 Additional testing, Part 15 Subpart B disclaimer

Host manufacturer is responsible for compliance of the host system with module installed with all other applicable requirements for the system such as Part 15 B.