In Boston’s Rose Kennedy Greenway, twenty-four sentinels have appeared in a 2001-kind of way. They are called Light Blades and overlook the parks of the Wharf District. The lights inside the blades react to text messages sent to a specific number and it’s apparently quite a sight – a space the size of a city block changing colour to your request. This is a public art installation called Color Commons and it is the brainchild of New American Public Art (NAPA), a collection of six artists.
The system works by using an SMS server which communicates to a Raspberry Pi at the park. The Pi matches the name of the colour to a list of 950 known colours and then sends commands to the Light Blades. The reaction time of the system is roughly two seconds, which is impressive considering the round-trip the messages make.
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Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!