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Serial-to-Wi-Fi module protects M2M applications

Posted: 09 Apr 2007 ?? ?Print Version ?Bookmark and Share

Keywords:embedded device server? M2M applications? Wi-Fi connectivity?

Connect One has announced the release of Socket iWiFi, a secure serial-to-Wi-Fi embedded device server that quickly and easily connects devices running machine-to-machine (M2M) applications to 802.11b/g WLANs and protects them from network attacks.

Minimum programming
Socket iWi-Fi uses Connect One's iChipSec CO711AG Internet Protocol (IP) communication controller chipwhich includes the latest encryption, security and IP protocolsto act as a firewall and Wi-Fi controller for the onboard Marvell 88W8385 Wi-Fi chipset. Socket iWiFi enables devices that use communication modules in the industry-standard SocketModem form factor to be integrated into a WLAN network with a minimum amount of programming.

Although there are many off-the-shelf, third-party software libraries on the market for adding Wi-Fi connectivity to Windows or Linux PC-based applications, no easy solutions exist to quickly Wi-Fi-enable non-PC devices that use other embedded RTOS. Socket iWiFi overcomes time and complexity barriers by unbundling the wireless and security drivers from the application. Designers do not need major reprogramming of the application in order to use this serial-to-Wi-Fi device server, since Connect One's iChipSec and high-level AT+i API offload the Wi-Fi drivers, WPA supplicant, security and networking protocols, and communication tasks from the host application. iChipSec also acts as a firewall-in-a-chip, protecting the application from networks attacks.

Simple wireless design process
By offloading connectivity, cryptography and security from the application processor, Socket iWiFi frees up host processing time and simplifies the wireless design process. As a coprocessor with remotely updateable firmware, new security or connectivity protocols do not require application redesign, increased memory or faster processor speed to meet future wireless demands. With Socket iWiFi, developers can take advantage of 10 simultaneous TCP/UDP sockets; two listening sockets; SMTP, MIME, POP3, FTP, Telnet and HTTP clients; a Web server with a Website for the application and one for configuring iChipSec; and serial-to-IP bridging. Socket iWiFi supports 64/128bit WEP encryption; the SSL3/TLS1 protocol for a secure client socket session and a secure FTP session; WPA1; and will support WPA2 starting Q3. The module operates at 3.3V, operates over an extended temperature range of -20C to 70C and is RoHS-compliant.

Socket iWiFi is available for $95 in quantities of 100-999 units. The II-EVB-361MS evaluation board provides an easy environment for testing Socket iWiFi and costs $275. For large volume customers, a reference design is available for iChipSec and the Marvell chipset.

Socket iWi-Fi will be demonstrated at the Embedded Systems Conference in Silicon Valley on April 3-5, 2007.




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