USRIOT USR-TCP232-T2 Tiny Serial Ethernet Converter Module Serial UART TTL to Ethernet TCPIP Module Support DHCP and DNS USR-TCP232-T2 Serial Module: Tiny Size Serial Ethernet Module Which Can Realize Data Bidirectional Transparent Transmission Between TTL And RJ45 Port. Can Also Be Applied In RS232/ RS485 By Level Shift Circuit. USR-TCP232-T2 Is Based On Cortex-M0 Core. It Has Characters Of Low Power, Fast Speed And High Efficiency. Provide PC TCP/IP Socket Programming Example Such As VB,C++,Delphi,Android And IOS Work Mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client