This is the driver for both the EtherSmart Wildcard and the WiFi Wildcard; the driver works for either one. It allows you to configure and control a dynamic webserver, send outgoing email, and implement two-way serial communications via TCP/IP ("serial tunneling") on your Local Area Network (LAN) using either wired Ethernet or wireless WiFi. You can also revector your serial communications via the Ethernet port to perform code downloads and debugging via Ethernet.