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MT7681 WiFi Bee Module

SKU: TEL0107

The MT7681 WiFi Bee Module is a versatile Arduino-compatible XBee module designed for Internet of Things (IoT), home automation, and robotics applications. It supports IEEE802.11b/g/n standard protocols, offering 2.4G Wi-Fi bands, 14 channels, and various encryption methods like WEP/WPA-PSK/WPA2-PSK/TKIP/AES, ensuring compatibility with mainstream routers. With STA and AP working modes and TCP/IP communications, it provides flexible connectivity options. The module features Smart Link intelligent connection, allowing easy setup via an Android app. Compatible with Arduino UNO and Mega 2560 boards, it enables wireless code uploads, simplifying debugging for robots and mobile platforms. It includes three I/O ports supporting software PWM outputs and can be configured using serial AT commands.

Front of WiFiBee-MT7681 wireless module with serial WiFi and Arduino support.-DFRobot product sku:TEL0107 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • 1. Network Configuration Guide

    This guide details the configuration of WiFiBee-MT7681 in STA and AP modes, offering step-by-step instructions on using SmartLink with Android, Arduino UNO/Mega2560 setups, and AT command configurations to ensure seamless network connectivity.

    2. Usage Example for TCP Server-UART Communication

    WiFi Bee supports TCP & UDP service, in this section, we'll demonstrates the TCP <-->UART communication.

    3. Usage Example for Arduino-Wireless Programming

    This article offers a comprehensive guide on using Arduino for wireless programming, detailing the necessary hardware and software setup, wiring instructions, and operational procedures to successfully upload and execute code using WiFi Bee and DFRduino UNO.

    4. Usage Example for WiFiBee AP Mode

    WiFi Bee can work under STA and AP mode. When it works under AP mode, the device can connect to WiFi Bee directly. But please note, AP mode only support one device simultaneously. And the IP address under AP mode has been fixed to 192.168.81.1

    5. Usage Example for Firmware Update

    This article outlines the complete process for updating firmware on WiFi Bee using an Arduino IDE and MT7681 Update Tool, including necessary hardware and software preparations, step-by-step operation instructions, and expected results.

    Reference

    Specification

    Parameter Details
    Microcontrollers MT7681
    Protocol Standard IEEE802.11b / g / n
    Wi-Fi Radius 180m (different environment, different transmission distance)
    Number of channels 1-14
    Frequency range 2.4-2.4835G
    Transmit power 15-18dbm
    Encryption Method WEP / WPA-PSK / WPA2-PSK / TKIP / AES
    Operating Mode STA mode / AP mode (STA & AP mixed mode is not supported, only one device can be connected under AP mode)
    TCP 1000 port TCP <-> UART data transparent port
    TCP 1001 port AT command port
    UDP 3333 port broadcast port
    Operating Voltage 3.3V
    Recommended Input Voltage 3.3V
    Power Consumption 75 mA
    UART serial port 1
    Baud rate 9600, 14400, 19200, 38400, 57600, 115200bps (default)
    Dimension 32 * 24 mm
    Weight 3.5g

    Pinout

    Pin_map

    Label Name Description
    VCC VCC 3.3V only
    IO0 GPIO 0 GIPO 0
    IO1 GPIO 1 GIPO 1
    IO2 GPIO 2 GIPO 2
    GND GND GND
    RESET Arduino Reset Reuse with GPIO 0, Arduino Reset Pin
    WIFI Reset WiFi Reset Reset WiFi Only

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