Programming Arduino Mini Pro with CP2102 USB-to-TTL serial converter - dejaWorks
Amazon.co.jp: WITMOTION USB-UART 6-in-1 Multi-Function (USB-TTL / RS485 / 232, TTL-RS232 / 485, 232-485) Serial Adapter with CP2102 Module for Windows 7, 8, Linux, Arduino Support Development Project : Computers