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 Octolively as stair lighting
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By: Anonymous: Presterin () on Tuesday, March 06 2012 @ 11:26 AM PST (Read 1422 times)  
Anonymous: Presterin

How hard would it be to adapt Octolively as very cool stair lighting? One sensor and one LED per step, each sensor activating also its neighbours. Could controllers communicate with each other in situation like this?

By: Windell (offline) on Tuesday, March 06 2012 @ 02:43 PM PST  

>How hard would it be to adapt Octolively as very cool stair lighting?

Not so hard, depending on what you're trying to do.

Octolively is primarily designed for near-field sensing. So, the "tricky" part is making sure that your foot goes close to one of the sensors. If you have one or two boards under each step (with holes or transparent material for the sensors and LEDs), then there's a good chance that you'll step on one of the sensors. You might also consider mounting a board or two on the riser of each step, so that it can see your foot as it goes by. On the other hand, with a single sensor per step (either on the step or riser), it's hard to guarantee that your foot will actually go anywhere near it.

One thing that you might be able to do is to put a single phototransistor on the side of each step, with the matching IR LED beaming across at it, from the other side. (Each "sensor" on the Octolively consists of an IR LED/phototransistor pair-- this could be done with breakout wires.) This would detect when your foot goes by, blocking the beam.

The Octolively microcontroller does not normally light neighboring LEDs or communicate in the way that you're describing-- but it would be relatively straightforward to add that capability by reprogramming. The "big" thing that you'd have to do is *tell it* what the order is, so that it knows which LEDs are the neigbors.

Windell H. Oskay

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