Hooking up a PING sensor

Hi.
Working on conecting a ping sensor to the Allbot, but what pins can i use.
Is all the pins on the VRBS (bat board) as i read the man port analog A0 … is free but is the 0 - 13 on the other side
of the board also free ??
Guess those are regular digital i/o …

tore

The ports that are used on the VRSSM will also be used on the VRBS board