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Liquidware team crafts laser tripwire that tweets intruder alerts, keeps fake sharks at bay (video)
Laser tripwire security systems can be expensive propositions that don't always work as planned -- just ask Raytheon, which saw its $100 million Perimeter Intrusion Detection System for JFK International Airport undermined by one wayward jet skier. Taking that as a form of dare, Justin Huynh and teammates at Liquidware have devised a much cheaper (if also much smaller) tripwire of their own. Any interruption of a laser pointer's beam is caught by an Arduino light sensor that promptly sends the alert to an Android-running BeagleBoard xM; if a toy like Bruce the shark dares cross the line, the BeagleBoard sends a Twitter message to let the authorities, or at least Huynh, clamp down on the trespasser. The invention won't replace Raytheon's handiwork anytime soon, although Huynh notes that additional or more powerful sensors could theoretically catch real, muscle-bound sharks and not just their plastic counterparts. The supply checklist and source code are waiting on the company's project page below, so those who'd like to ward off miniature invasions can get started today.
DIY tablet kit is less than $400, more complicated than an iPad
Tired of The Man holding you down on the tablet front with his oppressive App Stores, his tyrannical carrier constraints, and other outrageous insults to your civil liberties? Well now you can break free of this stranglehold, thanks to a company called Liquidware and its open source, DIY tablet starter kit. The premise is simple: Liquidware provides a touchscreen OLED display (4.3-inch, 480 x 272, resistive touch), the BeagleBoard guts (a single-board computer driven by a 720MHz ARM Cortex-A8 OMAP3530 CPU, with 2GB of NAND and an SD card slot), and the BeagleJuice battery module, along with an SD card pre-loaded with Angstrom Linux. You put all the pieces together and then just basically go nuts, designing your own application marketplace, infrastructure for direct-to-consumer video and audio sales, and a revolutionary and magical user interface that blurs the lines between waking life and a hallucinatory dream-state where anything is possible, and the only limitation is yourself. Check the Moscone Center's booking information below to see scheduling availability for your developer conference, and hit the source link to offer up your $393.61 to Liquidware.
