Features:

• This is a basic breakout board for the FTDI FT232RL USB to serial IC.
• The pinout of this board matches the FTDI cable to work with official Arduino and cloned 5V Arduino boards.
• It can also be used for general serial applications.
• The DTR pin allows an Arduino target to auto-reset when a new Sketch is downloaded.
• The pins labeled BLK and GRN correspond to the colored wires on the FTDI cable.
• The black wire on the FTDI cable is GND, green is CTS. Use these BLK and GRN pins to align the FTDI basic board with your Arduino target.
•This board has TX and RX LEDs that make it a bit better to use over the FTDI cable. You can actually see serial traffic on the LEDs to verify if the board is working.
• This board ship default to 5V, but you can cut the default trace and add a solder jumper if you need to switch to 3.3V.