Mitch writes "The following is the basic pattern for building cantilevered structures with Pennies. Although it looks trivial, we can build amazing structures with these pillars. All penny columns are ten high, a "stack". Two side-by-side pennies held in place by a penny above them is called a "triad". Below is a stack with two triads resting on top." Thanks Tim! Link.
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Gareth Branwyn, Chris Connors (guest author), Collin Cunningham, Marc de Vinck, Peter Horvath (intern), Kip Kay, Goli Mohammadi, John Park, Sean Ragan, Becky Stern, Phillip Torrone
How-To Tuesday: Arduino 101 & the PING))) ultrasonic sensor
The PING))) ultrasonic sensor is a really easy way to measure distance with a micro-controller. All you have to do is hook up 3 wires and upload some code. These sensors are great for robots, alarm systems, or any...
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