This serial port is a way to send data between the Raspberry Pi and another PC system. It can be used to connect a PC to allow access to the Pi console. This can help to fix problems during boot, or to log in to the Raspberry Pi if the video and network aren't available. Furthermore, it can connect to a microcontroller or other peripheral which has a serial interface. This is useful if you want the Raspberry Pi to control another device.

Features:

• USB to Serial Port converter - easy to use the PC as the terminal to access the Raspberry Pi 
• Arduino Pro Mini access pin - easy to upload programs to an Arduino
• Pi Pin 1 to Pin 10 prototype area - easy to modify for your own use 
• TXD, RXD and LED - easy to check status of Pi
• FTDI FT232RL chip - supports most Operation Systems (OS)

Supported OS information:

• FTDI Link

User Manual