Comment Hard enclosure? (Score 1) 86
Why is he proposing a hard enclosure for this? It would be a lot more practical (not to mention more convenient and lighter) to sew these into the covering flap of a messenger bag or similar (like he had), using easily-obtainable RGB LEDs on flexible PCB strips (like he was using) that are already sealed and watertight. The only difficulty would be sealing the connecting points, but that wouldn't be too much of an issue, and if you're going whole hog and making from the SMT parts up (instead of repurposing already made components) you could make a square sheet of flexible PCB for the whole thing.
Also, aren't there laws against putting flashing/strobing/colour-changing signs and lights in front of people's faces while they drive? While better visibility is good, techno-disco-light-shows distracting all and sundry on the road is bad.