Counter Intelligence: An Attempt to Keep Curious Cats at Bay

Steve Winter of Berkeley, CA designed Counter Intelligence to catch his cats trying to investigate the kitchen counter when he and his wife are not around. Steve used an Arduino Nano with a Maxbotix ultrasonic rangefinder to monitor the countertop. If the rangefinder senses something close by—say, a feline—it fires a toy gun that makes […]

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Ultrasonic haptic vision system

Rohan Sharma and Jeff Buente, at Cornell University, posted detailed notes on their haptic vision project: The ultrasonic haptic vision system enables a person to navigate hallways and around large objects without sight, through the use of an ultrasonic rangefinder that haptically interfaces with the user via tiny vibrating motors mounted on the user’s head. […]

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Making Things Talk excerpt: distance ranging

Here’s another Make: Books PDF excerpt. This one comes from Tom Igoe’s Making Things Talk, which tells you how to create Arduino- and XBee-powered devices that form networks of smart objects. This excerpt shows you how to work with two different distance rangefinders, the Sharp GPxx series of infrared rangers and the Devantech SRFxx series […]

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