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Using spreadpi
Mark Van den Borre edited this page Apr 8, 2014
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- Connect your workstation to the local network. Hint: a wired network connection is faster and more reliable, and preferable over a wireless alternative.
- Connect your cameras to the USB hub.
- Connect your USB hub directly to one of the raspberry pi's full size USB ports.
- (optional) Connect your USB foot pedal directly to the other raspberry pi USB port.
- Do not connect the USB-to-micro USB cable's USB side to the USB hub yet.
- Connect the micro USB cable to the raspberry pi's micro USB port.
- Power on your powered USB hub.
- Switch on your cameras.
- The USB-to-micro cable is plugged into the raspberry pi's micro USB port. Connect the USB connector of this cable to the powered USB hub.
- Watch the screen of your cameras. After a minute or so, it should display the URL where you can reach the scanner web interface.
- Open the scanner web interface.
- Create a new workflow. Accepting the default settings should be quite ok in most of the cases.
- Capture some pages.
- Download the images archive.
- IMPORTANT When finished, cleanly shutdown the pi. There's a button in the web interface for that.
- Postprocess using scantailor on your workstation.
Microsoft Internet Explorer is supported starting from version 9. Older versions are not standards compliant enough, sorry.
For web developers: spreads is built on React (javascript) and Foundation (css).
Apple's OS X Archive Utility has a bug that prevents it from unpacking zipstream archives correctly. The free and open source Unarchiver app can do this without any problem.
On thin paper, letters of the next page may shine through when copying or scanning. The trick here is to insert a sheet of black paper behind the page being photographed. This takes some extra time, but it greatly increases scan quality. (Thanks for the hint, Oswald!)