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Table Of Contents

WF866 User Manual

WF866 User Manual

1. Introduction

WF866 is a cost-effective embedded 2.4 GHz WiFi(802.11 b/g/n) and Bluetooth® 5

module launched by Sengled, Custom Nodes ESP32-C3 technology, ESP32-C3

integrates the antenna switch, RF balun, power amplification amplifier , low noise

amplifier, filter and power management The module compact design requires very

little external circuit and reduces PCB size to minimum.

2. Module samples

3. General information

1. Support 802.11b /g/n, The frequency range is 2412 MHz ~ 2462 MHz;

2. support (Bluetooth LE)：Bluetooth 5 、Bluetooth mesh，The frequency range is

2402 MHz ~ 2480 MHz;

3. RISC-V 32-bit Microprocessor processing management;

4. SPI Flash: 4 M(Optional internal integrated flash );

5. Single power supply 2.7 to 3.6V, Average current: 80 mA;

6. Net network protocol (2) the IPv4 / IPv6, TCP/UDP;

HTTP/HTTPS/SSL/MQTT/mDNS/CoAP;

7. Straight plug installation;

8. Compact size 17*24.6mm;

9. Integrated on-board antenna;

10. Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same

antenna.

Summary of content (5 pages)

PAGE 1
WF866 User Manual 1. Introduction WF866 is a cost-effective embedded 2.4 GHz WiFi(802.11 b/g/n) and Bluetooth® 5 module launched by Sengled, Custom Nodes ESP32-C3 technology, ESP32-C3 integrates the antenna switch, RF balun, power amplification amplifier , low noise amplifier, filter and power management The module compact design requires very little external circuit and reduces PCB size to minimum. 2. Module samples 3. General information 1. Support 802.
PAGE 2
FCC Statement Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. 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.
PAGE 3
ISED RF exposure statement: This equipment complies with ISED 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.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. Le rayonnement de la classe b repecte ISED fixaient un environnement non contrôlés.
PAGE 4
OEM Guidance 1. Applicable FCC rules This device complies with part 15.247 of the FCC Rules. 2. The specific operational use conditions This module can be used in IoT devices. The input voltage to the module is nominally 3.3 V DC. The operational ambient temperature of the module is 0°C ~ 40°C. An onboard PCB antenna is integrated for this module. 3. Limited module procedures N/A 4. Trace antenna design N/A 5.
PAGE 5
in KDB 996369. For host products with certified modular transmitter, the frequency range of investigation of the composite system is specified by rule in Sections 15.33(a)(1) through (a)(3), or the range applicable to the digital device, as shown in Section 15.33(b)(1), whichever is the higher frequency range of investigation When testing the host product, all the transmitters must be operating.