Ceiling / LED Awesomeness
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=== Diffusers === | === Diffusers === | ||
| - | * | + | * We are going to staple white fabric between the beams. Once its up, we're not going to take it down. |
* Diffusers would be mounted between the beams. The bottom face of the beams would be exposed. | * Diffusers would be mounted between the beams. The bottom face of the beams would be exposed. | ||
* Diffusers would be mounted above the piping system, so as to preserve the paint job, and allow access to the space by the water from the sprinkler heads, should the need arise. | * Diffusers would be mounted above the piping system, so as to preserve the paint job, and allow access to the space by the water from the sprinkler heads, should the need arise. | ||
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=== LEDs === | === LEDs === | ||
| - | * 6 | + | Each LED will ultimately be *individually addressable* |
| + | * 6 of 4 LEDs each, per section of ceiling (as defined by the intersection of beams) | ||
* Each cluster would consist of 4 LEDs, one each of red, green, blue, and white | * Each cluster would consist of 4 LEDs, one each of red, green, blue, and white | ||
| - | * Each cluster would be fed by a Category 5 network cable ( | + | * Each cluster would consist of 4 LEDs plugged into a 2x4 IDC (no soldering!) |
| + | * Each cluster would be fed by a Category 5 network cable (cheaper) or ribbon cable (nicer) | ||
| + | * Each section of ceiling would terminate to a 25-pin IDC connector. Two of these would plug into a 50-conductor ribbon cable, bundles of which would run down the North/South center beam in the ceiling. 50-conductor cables would plug into surface-mount or edge connectors on the control system | ||
=== Control System === | === Control System === | ||
| - | + | We plan to create a control circuit, and fab out the manufacture of a PCB. PCB would need to have 10 50-conductor IDC pin blocks on it. | |
=== Costs === | === Costs === | ||
| - | * | + | * Found a source of 10mm bright LEDs. bestshop2008hk on eBay would provide 800 LEDs for $120. |
| - | + | * Ribbon cables and IDC connectors would run about $200 | |
| - | * | + | * PCB could run $50 or so. |
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=== Q & A === | === Q & A === | ||
* How bright is this thing? | * How bright is this thing? | ||
| - | ** | + | ** Each LED puts out 20-40K MCD. Based on some really fuzzy math to convert that to lumens, we'd roughly have the equivalent light of a 40 watt lightbulb, per color, per ceiling grid (each grid is about 40 sq feet). TL;DR... pretty bright. We'd probably want to supplement with additional incandescent lamps or directed workspace lights; this project is intended to be bright, but not bright enough to do fine work. |
=== Purchasing === | === Purchasing === | ||
| - | If you'd like to contribute, please | + | If you'd like to contribute, please give money to Steve Smith. He'll be coordinating an eBay order or two. |
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=== Assembly === | === Assembly === | ||
| - | Once the stuff has all arrived, we're gonna need to | + | Once the stuff has all arrived, we're gonna need to hook up a bunch of LEDs and figure out a control mechanism. I'll need help with the circuit design. |
Revision as of 07:49, 15 August 2010
Contents |
Problem(s)
- Fluorescent lights are not l33t enough
- Mood / situation lighting is important, especially when you're here late at night
- Our neighbors above like to jump around, jump around, Jump up Jump up and get down, and leave dust all over the space as a result
Proposed Solution
Based on some discussions with other members, and random strangers on the internet, I'd like to set up some kind of diffuse LED lighting.
Diffusers
- We are going to staple white fabric between the beams. Once its up, we're not going to take it down.
- Diffusers would be mounted between the beams. The bottom face of the beams would be exposed.
- Diffusers would be mounted above the piping system, so as to preserve the paint job, and allow access to the space by the water from the sprinkler heads, should the need arise.
LEDs
Each LED will ultimately be *individually addressable*
- 6 of 4 LEDs each, per section of ceiling (as defined by the intersection of beams)
- Each cluster would consist of 4 LEDs, one each of red, green, blue, and white
- Each cluster would consist of 4 LEDs plugged into a 2x4 IDC (no soldering!)
- Each cluster would be fed by a Category 5 network cable (cheaper) or ribbon cable (nicer)
- Each section of ceiling would terminate to a 25-pin IDC connector. Two of these would plug into a 50-conductor ribbon cable, bundles of which would run down the North/South center beam in the ceiling. 50-conductor cables would plug into surface-mount or edge connectors on the control system
Control System
We plan to create a control circuit, and fab out the manufacture of a PCB. PCB would need to have 10 50-conductor IDC pin blocks on it.
Costs
- Found a source of 10mm bright LEDs. bestshop2008hk on eBay would provide 800 LEDs for $120.
- Ribbon cables and IDC connectors would run about $200
- PCB could run $50 or so.
Q & A
- How bright is this thing?
- Each LED puts out 20-40K MCD. Based on some really fuzzy math to convert that to lumens, we'd roughly have the equivalent light of a 40 watt lightbulb, per color, per ceiling grid (each grid is about 40 sq feet). TL;DR... pretty bright. We'd probably want to supplement with additional incandescent lamps or directed workspace lights; this project is intended to be bright, but not bright enough to do fine work.
Purchasing
If you'd like to contribute, please give money to Steve Smith. He'll be coordinating an eBay order or two.
Assembly
Once the stuff has all arrived, we're gonna need to hook up a bunch of LEDs and figure out a control mechanism. I'll need help with the circuit design.
