The BASIC Stamp does not have an analog to digital converter . . .
That is not a problem considering it doesn't even have interrupts... ( I know he is a beginner and interrupts etc etc etc...)
But still it doesn't... bad bad bad bad....
Personally, I don't recommend BS2... It's a good start for the first two - three projects... then... bye bye happiness.
It's good you ordered the boe - bot version. The chassis is a good one!!!
I would get a arduino for the start. And if I liked the concept then move on to a platform like AXON...
And Yes arduino can be also programmed in Basic via BASCOM.
Best Regards, Lefteris
Greece