To use the Omega without a dock, we can build a regulator circuit to feed it the power it needs. Using Onion's mechanical drawings available at GitHub, I designed a 3D printable enclosure for the Omega that includes space for the regulator circuit and batteries!
Full STL files for the project are available at Thingiverse: http://www.thingiverse.com/thing:2093072
The goal is to hook up a reliable regulated 3.3V power supply for the Omega to work properly.
The LM317 is the heart of our project and it has three pins: INput, OUTput, and ADJustment. The device component count is very minimal, employing two resistors. We can use several resistor combinations and there are online calculators for it.
Not only the voltage must be correct but also the positive and negative must reflect the pins at the Omega so we must make sure the batteries + / - poles are positioned accordingly.