xPico® Wi-Fi® Embedded Device Server User Guide 102: IntroductionThis chapter summarizes the basic information and features of the xPico Wi-Fi embedded deviceserver. It provides an overview of key features and describes suitable applications.Key Features Wireless LAN Interface:IEEE 802.11 b/g and IEEE 802.11n (single stream)WLAN interface (2.4 GHz only)IEEE 802.11 d/h/i/j/k/w/ru.FL connector for external antenna Serial Interface:Two Serial CMOS Ports (3.3V, 5V tolerant) 11200 to 921.6KbpsFlow control: XON/XOFF, RTS/CTS (Line 1 only)Lantronix tunneling application (Line 1 only) Host Interface:Dual Serial Port, SPI, USB2.0 (device)8 GPIO Network Protocols: TCP/IP, UDP/IP, DHCP Server (software-enabled Access Pointinterface), ARP, ICMP, DHCP Client (WLAN interface), Auto-IP, DNS Networking Capabilities:Soft Access Point with DHCP ServerRoaming: continually tracks Wi-Fi signal strength within range, resulting in smooth andautomatic transition between access points without delay.QuickConnect: Dynamic Profiles facilitate easy and rapid connections to access points Management and Control:Web ServerCLI (Serial Monitor Port)XML Configuration Import and Export (XCR, XML Status Export [XSR])Field upgradable firmware (OTA) Security:IEEE 802.11i Support – WPA-Personal, WPA2-Personal256-bit AES Encryption1. For xPico Wi-Fi 5V tolerant pins, in order to sustain a voltage higher than Vcc+0.3, the internal pull up/pull down resistors mustbe disabled.