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I made a quite handy helper library for Livid Block Pure data development.
This Block Abstractions library provides led, button, knob and slider objects. You can just say [livid-slider 1] and get the output of first slider in your Livid Block. Other objects work similar. Button and led objects can have unlimited amount of different states. You can have for example three-state off-blink-on led with just few lines of pd code.
This script should be quite easy to modify to work with Ohm and other Legacy Livid controllers. Maybe even the new ones? If someone is interested using this, I'd appreciate any feedback: heikki . ketoharju [at] iki.fi.
You can grab the library here: http://heikki.ketoharju.info/pd/block-abstractions/