Hello,
When you register an Arduino on Sen.se (
http://open.sen.se/devices/add/
custom/), you will be able to download a sample sketch for your
Arduino at the end of the registration process (select 'Detailed
instructions' or 'Sketch generator').
You can access this download page after registration by going on the
device's page and clicking on 'View recap instructions' in the left
hand column.
Franck