Description: Introducing the 3.3V SparkFun
FT231X Breakout board, complete with the full UART hardware handshake
feature! The pinout of this board matches the FTDI cable to work with
official Arduino and cloned 3.3V Arduino boards. It can also be used for
general serial applications. This board still brings out the DTR pin as
opposed to the RTS pin of the FTDI cable. The DTR pin allows an Arduino
target to auto-reset when a new Sketch is downloaded. This is a really
nice feature to have and allows a sketch to be downloaded without having
to hit the reset button. This board will auto reset any Arduino board
that has the reset pin brought out to a 6-pin connector.
The coolest thing about the FT231X Breakout is that we have broken
out ALL the pins for your use, making this board all the more hackable!
It also uses a common microUSB jack.
One of the features of this board is a jumper on the back, which
allows the VCC output to be configured to either 3.3V or 5V. This board
ships default to 5V, but you can cut the default trace and add a solder
jumper if you need to switch to 3.3V. It should be noted, however, that
the max input of the FT231X is only 3.3V but it can operate down to 1.8V
with external pull ups and is also 5V tolerant.
Documents & Downloads: