Finally some progress on the software for my DIY slider (see vimeo.com/60693661).
It's now running a node.js backend on the Raspberry Pi, with an HTML5 frontend webapp to control everything via a mobile phone.
This is the first real footage, so far it seems to work great :)

Some Details on the implementation here, note this is still work in progress :)
raspberrypi.org/phpBB3/viewtopic.php?f=41&t=42301&p=341122

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