Arduino WIFI shield

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Introduction

The Wifi Shield is based on Serial to Wi-Fi module Wizfi210 from Wiznet and compatible with Arduino and its clones. The Wifi Shield offers you a quick, easy, and effective way to add Wi-Fi capabilities to Arduino. The Wifi Shield allows you to achieve Wifi communication via UART by sending AT commands, which is an ideal solution for whom with limited or no Wi-Fi or RF expertise. The Shield supports data rates up to 11 Mbps, and is compliant with 802.11b.


Features

  • Serial(UART) to Wifi.
  • Simple AT commands for configuration and data communication.
  • DHCP/Static IP, TCP/UDP, Server/Client, DNS.
  • Operates with standard 802.11 b/g/n access points at speed up to 11 Mbps (802.11b).
  • 802.11i Security (WEP, WPA, WPA2-PSK, Enterprise).
  • High-throughput hardware AES and RC4 encryption/decryption engines.
  • Limited AP Feature (Direct Connection to iPhone, iPad and Android-Phone without AP).
  • Ultra low power consumption through dynamic power management.


Specifications

  • Wifi Chip: WizFi210
  • Radio Protocol: IEEE 802.11b/g/n Compatible
  • Supported Data Rates: 11, 5.5, 2, 1 Mbps (IEEE 802.11b)
  • Modulation: DSSS and CCK
  • RF Operating Frequency: 2.4 - 2.497 GHz
  • Antenna Options: Chip antenna and U.FL connector for external antenna
  • Networking Protocols: UDP, TCP/IP (IPv4), DHCP, ARP, DNS, HTTP/HTTPS Client and Server(*)
  • Power Consumption(Typical): Standby = 34.0 µA Receive = 125.0 mA Transmit = 135.0 mA
  • RF Output Power (Typical): 8dBm ± 1dBm
  • Security Protocols: WEP, WPA/WPA2–PSK, Enterprise, EAP-FAST, EAP-TLS, EAP-TTLS, PEAP
  • I/O Interface: UART, SPI(*), I2C(*), WAKE, ALARM, GPIOs
  • System Working Voltage: 3.3V