Arduino RTC Clock Sync with Linux

gistfile1.txt

To sync an arduino RTC clock over USB tty, without the need for installing the DateTime or Time example processing sketch.
Useful for EvilMadScience Bulbdial Clock.

```
$ stty -F /dev/ttyUSB0 raw speed 9600
9600
$ printf '%c%d' $'\xFF' $(date +%s) > /dev/ttyUSB0 
```

To follow the change, in a separate terminal run something like:
```
$ cat /dev/ttyUSB0 
Clock synced at: 
1501492213
9:10:13 Monday July 31
^C
```