Hi, I'm working on designs to build a self-checkout kiosk for our Koha system. Seems pretty straight-forward except the book desensitizer part. All the desensitizers I've every used only had an on/off switch. Has anyone ever seen or used a desensitizer that can be programautomagically triggered? Hoping to use an iPad or Nexus, so something that's not windows only would be ideal, but looking for anything right now... thanks for any pointers/suggestions.... b,chris.