The FT232R is a USB to serial UART interface.  A low-cost way to add USB capability to For arduino or other microcontrollers.

Use this to give your own breadboard For arduino USB capability for bootloading or downloading sketches.  It has an on board LED indicator for RXD/TXD transceiver communication.

Includes over-current protection, using a 500ma self-restoring fuse.This board includes a DTR pin needed to auto-reset For arduino when downloading to your device.

This usb to serial adapter module has a selectable 5V or 3.3V operation mode making it suitable for connecting it to the Raspberry Pi serial port pins ( which operates only on 3.3V ).

Fig: 5V - 3V Selector 

This is the ideal tool to connect to Serial GPS, configuring Openlog modules and flashing/upgrading the bootloader for Arduino.

This is a must-have module in the hobbyist toolkit. At its heart is the FTDI module which is well supported on Windows, Linux and MAC, which gives you a plug and play operations without having to run behind drivers.

Specs: