Hardware notes

ARM-USB-TINY-H

Connector pinout

9 5 1
----^^----
/oooooooooo\
\oooooooooo/
----------
6 2

Low voltage UART mode

Pin functions

1, 2: Vcc (connected)

4, 6 and the rest of the low row: GND (connected)

5: RX

7: CTS#

9: TX

Driver

http://ftdi-usb-sio.sourceforge.net/

modprobe ftdi_sio vendor=0x15ba product=0x002a