You can find here information and comments to the files listed.
Further information can be found at http://www.ckuehnel.ch/dokuwiki/doku.php?id=udoo.
The wiki uses Markdown syntax.
Senden von eMail mit Hilfe von cURL - sendmail.sh
Zugriff auf Cloud Services über Temboo - Temboo
VNC Zugriff - VNC
DAC0 & DAC1 did not work on UDOO with Arduino V1.5.4.
An alternative is PWM output with RC filtering to get (more or less) a DC voltage.
It seems there is a floating point issue on UDOO.
See http://forum.arduino.cc/index.php?PHPSESSID=aujso3ahsljln3215u54js10c0&topic=207097.msg1523111#msg1523111