Open a TCP connection to a server from the Arduino using just serial. (No Ethernet/WiFi shields necessary). Quickly communicate with other servers and make network apps using minimal hardware. INSTALL DEPENDENCIES! The Protocol Gateway service runs on the host, listens on a COM port connected to the Arduino, and opens TCP connections on behalf of the Protocol Client runnning on the Arduino, forwarding traffic bi-directionally. The protocol provides the app an in order, duplicates free and error checked byte stream by adding a CRC32 and simple retry mechanism.