Difference between revisions of "Arduino WIFI shield"

Revision as of 07:28, 24 December 2012

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