Kansas City Tech Guide

We were beginning to wonder if the Roomba hacking community had been sucked dry of ideas, but leave it to longjie0723 to give us hope yet. This Roomba hacker (yeah, he also rigged his up for Wiimote control) managed to solder 448 yellow LEDs onto a board and program said devices to move in such a way that a Pac-Man-type image is seen. C’mon, who hasn’t dreamed of having that ghost-inhaler work his magic on those forsaken floors? Check the video after the jump.

[Via Hack N Mod]

You know that impossible-to-miss NASDAQ sign on Broadway at 43rd Street in New York City? Yeah, the one that’s 11,000-square feet in size. The Walgreen Company has set out to make that look like child’s play, as it aims to erect a 250,000-pound sign at a three-level emporium in Times Square. Said display will reportedly be used to “raise [the drugstore's] visibility in New York,” while doubling as a “focal point for it nationally.” This beast will be covered in 12 million LEDs — 17,000 square feet of them, to be exact — and you can only imagine the hardware that will be required behind the scenes to keep this thing up and running. If you just can’t wait until next fall to peep this in person, head southward to the read link and dig in.

[Thanks, Brock]

Honlai may not be a household name just yet, but if it can up the resolution on its minuscule projectors just a hair, there stands a decent chance for it to become one. Details are pretty scarce right now, but we do know that the MP100 LED mini-projector utilizes LCoS micro-projection technology and can throw up a 640 x 480 image between 5- and 37-inches. We’re also hearing that it packs a modest 200:1 contrast ratio and a lamp good for some 20,000 hours of use. Not a peep on pricing / availability, but we’ll be keeping an ear to the ground for more on either.

[Via AboutProjectors]