Giving the Nexus 4 a serial port

http://hackadaycom.files.wordpress.c...pg?w=580&h=359
Having a serial port on any Linux box is always useful, but with the tiny computers we’re carrying around in our pockets now, that isn’t always an option. Some of the more advanced phones out there break out a UART on their USB OTG port, but the designers of the Nexus 4 decided to do things differently. They chose to put the Nexus 4′s serial port on the mic and headphone input, and [Ryan] and [Josh] figured out how to access this port.

http://hackaday.com/2013/05/30/givin...a-serial-port/