Anish Athalye and friends added a touchscreen to a MacBook with only a $1 camera part. How'd they do it? Magic? No. Software. And ingenuity.
The basic principle behind Sistine is simple. Surfaces viewed from an angle tend to look shiny, and you can tell if a finger is touching the surface by checking if it’s touching its own reflection.
Kevin [Kwok], back in middle school, noticed this phenomenon and built ShinyTouch, utilizing an external webcam to build a touch input system requiring virtually no setup. We wanted to see if we could miniaturize the idea and make it work without an external webcam. Our idea was to retrofit a small mirror in front of a MacBook’s built-in webcam, so that the webcam would be looking down at the computer screen at a sharp angle. The camera would be able to see fingers hovering over or touching the screen, and we’d be able to translate the video feed into touch events using computer vision.
Anish, clean your screen!
Abbott Labs makes a continuous glucose monitor -- used by people with diabetes to monitor their blood-sugar levels -- called (ironically, as you'll see below) the Freestyle Libre.
A family in DeSoto County, Mississippi, bought a Ring security camera so they could keep an eye on their three young girls in their bedroom. Four days later, they learned that a hacker had broken into the camera and subjected their children to continuous bedroom surveillance, taunting the children through the camera's built-in speaker.
The Lixada LED Handheld Flashlight is a $9 stocking-stuffer ($29 for 4): a six-LED/36 lumen flashlight that clips directly over the terminals of a 9V battery, forming an easy flashlight rated for up to 10,000 hours (battery life depends on whether you're switched to 6, 4 or 2 LEDs). One reviewer uses 9V batteries swapped […]
This holiday season, give the delivery man a break. Who needs the extra cost and uncertainty of shipping anyway? Here are 10-holiday gifts that cut out the middleman and go straight to the nicest ones on your Christmas list. Winc Wine Delivery Okay, we might be cheating a little with this first one, but a […]
For some folks, writing notes by hand is just plain easier, but having to re-type them later can be a huge bore, not to mention time-sink. The guys from Rocketbook successfully merged the best parts of analog and digital note-taking with their Everlast notebook awhile back. And now, that tech just got a lot more […]
There are fast-paced card games, and some of them even require enough dexterity for a mini-workout (like Skip-Bo or Snap). But there’s nothing quite like the Mokuru® Card Game, which uses an already addictive fidget toy as the centerpiece for a cutthroat game of tabletop challenges. The game is named for the toy that gets […]