Part 1 of: one button scan to dropbox with your #raspberry pi

My tinkerTable works as a document management system... kind of.
That's why there's a button which starts the scanner and saves the scan to dropbox.

Here's what you need for the scanning part:

sane
make sure your scanner is supported:
http://www.sane-project.org/sane-mfgs.html

Install sane:
    sudo apt-get update
    sudo apt-get install sane
allow user to scan:
    usermod -a pi -G scanner
this didn't work with the raspberry pi model b, but scanning worked anyhow.

check scanning:
    scanimage -L

this didn't work, but I got a result using
    scanimage > test.ppm

imagemagic is needed to convert images:
    sudo apt-get install imagemagick

I've found lot's of help here:
http://www.gaducated.com