ODROID-X Information

Features - ODROID :: Hardkernel
http://www.hardkernel.com/renewal_2011/products/prdt_info.php?g_code=G133999328931&tab_idx=1

Board Detail - ODROID :: Hardkernel
http://www.hardkernel.com/renewal_2011/products/prdt_info.php?g_code=G133999328931&tab_idx=2

odroid development center: ICS on Exynos4210: Project Info
http://dev.odroid.com/projects/ics/

ODROID :: Community
http://odroid.foros-phpbb.com/

Downloads - ODROID :: Hardkernel
http://com.odroid.com/sigong/nf_file_board/nfile_board.php
ODROID-X Downloads - ODROID :: Hardkernel
http://com.odroid.com/sigong/nf_file_board/nfile_board.php?tag=ODROID-X

Exynos-4412 Android 4.0.4 BSP (Update! Alpha 3.1)
http://odroid.foros-phpbb.com/t1154-exynos-4412-android-404-bsp-update-alpha-31
Latest version of ICS and JB
http://odroid.foros-phpbb.com/t1415-latest-version-of-ics-and-jb
ODROID-X Android Alpha-3 image release (Alpha 3.5 !!)
http://odroid.foros-phpbb.com/t1270-odroid-x-android-alpha-3-image-release-alpha-35
ODROID-X Android Alpha-3.5 image release
http://com.odroid.com/sigong/nf_file_board/nfile_board_view.php?keyword=&tag=ODROID-X&bid=121

ODROID-X : History of PCB revision. (for schematics)
http://com.odroid.com/sigong/blog/blog_list.php?bid=132

USB/UART

Features - ODROID :: Hardkernel
http://www.hardkernel.com/renewal_2011/products/prdt_info.php

UART     System console monitoring for development (1.8volt interface)

(..........)

USB-UART Module Kit
CP2104: USB to Serial UART bridge IC with 1.8V interface

RS-232 vs. TTL Serial Communication - SparkFun Electronics
http://www.sparkfun.com/tutorials/215

Most microcontrollers these days have built in UARTs (universally asynchronous receiver/transmitter) that can be used to receive and transmit data serially. UARTs transmit one bit at a time at a specified data rate (i.e. 9600bps, 115200bps, etc.). This method of serial communication is sometimes referred to as TTL serial (transistor-transistor logic). Serial communication at a TTL level will always remain between the limits of 0V and Vcc, which is often 5V or 3.3V. A logic high ('1') is represented by Vcc, while a logic low ('0') is 0V.

 
萬平科技-USB To TTL(1.8V~3.3V),可支援Win8, 16線式,PL2303HXD,有電源/TX/RX三色指示燈,可做完整的開發及應用(附4條杜邦線) - 露天拍賣
http://goods.ruten.com.tw/item/show?21108033081670#auc

USB to TTL(預設為3.3V, 可自行調整為1.8~3.3V) 16 I/O, PL2303 HXD(最新款的第五代PL2303) chip, OP-1010
http://www.oneping.com.tw/p_usb2ttl_16.htm

USB to TTL(1.8V) 16 I/O, PL2303 HXD(最新款的第五代PL2303) chip, OP-1010
http://www.oneping.com.tw/p_usb2ttl_16_18V.htm

萬平科技 葉安彬 先生:

UART預設電壓是3.3V,

如要自行調整TTL 電壓時，請將R7 移掉後：

如從VD232 處輸入1.8V 時，那Tx、DTR 及RTS 的輸出電壓準位就會為1.8V。

如從VD232 處輸入2.5V 時，那Tx、DTR 及RTS 的輸出電壓準位就會為2.5V。
如從VD232 處輸入3.3V 時，那Tx、DTR 及RTS 的輸出電壓準位就會為3.3V
其輸入電源是一個外接電源(如一個電源供應器).

OP-1010-18V板子上有用一個LDO接在VD232這裡,所以OP-1010-18V才會輸出1.8V, 因為有多用一個LDOIC, 所以售價是165元(有含四條線),有很多人是直接買OP-1010-18V這個型號測試1.8V.

不過也有些人是買OP-1010,自己用電源供應器接1.8V,這樣也可以用1.8V的UART..