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WiFi Shield V3 For Arduino PCB Antenna

SKU: TEL0078

The WiFi Shield V3 for Arduino PCB Antenna offers dual mode AP+STA connectivity, allowing users to easily join router WiFi networks via mobile devices without complex AT commands. Utilizing dynamic power management, the shield achieves low power consumption, making it ideal for product design with standby modes. It supports IEEE802.11b/g/n protocols, enabling devices with UART to establish wireless networks for remote management and control, leveraging the latest IEEE802.11n standard for enhanced transmission speed, coverage, compatibility, and security. This makes the module a versatile choice for integrating wireless capabilities into electronic devices.

Overhead shot of Arduino WiFi Shield with PCB antenna and connectors-DFRobot product sku:TEL0078 image.

Downloadable Resources

  • Docs
  • Tech Specs

    • Specification

    Parameter Details
    Working voltage 5V
    Frequency range 2.4 - 2.497GHz
    Output power 16dBm
    Transmission rate 54Mbps - 1Mbps
    Transmission distance <150M
    Size 55mm×53mm×11mm
    Weight about 40g
    Support IEEE standards 802.11b/g/n
    Supported modes AP, Client, Gateway and UART to WLAN mode and so on
    Network configuration Support DHCP, automatic access to IP; Support allocating IP to slave device in AP mode
    Network protocols TCP/UDP/ARP/ICMP/HTTP/DNS/DHCP
    Optional working modes TCP Server/TCP Client/UDP; Support up to 32 Client in TCP Server mode
    Encryption algorithms WEP/WAP-PSK/WAP2-PSK/WAPI; Encryption types: WEP64/WEP128/TKIP/AES
    UART features Support transparent UART/protocol data transmission mode; Up to 1M cache space; Highest baud rate: 460800bps
    UART applications Support UART(TTL) to wireless applications
    Factory reset Drag down the level of the Reload IO pin for 3 seconds, you can restore factory settings. So do not worry about the wrong settings.
    AP/Station modes Support running in AP mode and the node (Station) mode; The real hardware AP, so Android can directly access it.
    Configuration methods Provide AT command configuration; Provide the friendly web configuration page, and can be configured by webpage
    Serial data settings Serial frame delay and the amount of data can be set.
    Network architecture Support routing/bridge mode network architecture.
    Compatibility Designed by standard Arduino stack, and can be easily put on the standard Arduino, MEGA, Romeo board or shield

    Pinout

    LED indicator:

    • Power: Power supply OK
    • Link: Connected to the WiFi network completed
    • Ready: Initialization completed

    Buttons on the shield:

    • RST: Reset the Arduino controller
    • Reload: When press it down more than 3 seconds and loosen it, the WIFI shield will restore factory settings.

    Switches on the shield:

    • Arduino: Establish the communication between WIFI shield and Arduino
    • Programme: Disconnect the communication between WIFI shield and Arduino
    • USB: Establish the communication between WIFI shield and the USB interface, which can be directly send and receive data from the USB interface.

    Jumpers on the shield:

    • D11 Sleep_RQ ：Jump to D11 pin，dormancy control input of the WIFI shield. When in the normal working state, set it to low level, and after 5 seconds, set it to high level, the WIFI shield will enter a state of dormancy; When in the dormancy state, set it to low level, and after 2 seconds, set it to high level, the WIFI shield will enter the normal working state. When not using this pin, jump to the other side of the D11 font.

    • D12 Sleep_ON ：Jump to D12 pin, dormancy state output pin of the WIFI shield. The electrical level of this pin is used to indicate working state of the shiled. When low, the shield is in sleep mode; When high, the shield is in the normal working state. When not using this pin, jump to the other side of the D12 font.

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