Muharrem Yildirim has developed the first major contender towards solving the GML Field Recorder Challenge, which is a 1200 euro prize to produce an easily reproducible DIY device that can unobtrusively record graffiti motion data during a graffiti writer’s normal practice in the city. The GML Recording Machine uses a hacked mechanical mouse in combination with an Arduino to measure the length of two strings attached to the graffiti writer’s feet. The motion captured data is stored in an on board SD card and, with a simple script, is later converted to Graffiti Markup Language (.gml) format. An instruction guide for how to build the device from low cost materials will be on Muharrem’s blog shortly.
The GML Recording Machine is an exciting step forward in the development of technologies for real (as opposed to simulated) graffiti.
I’ve been working with Leah Buechley’s LilyPad Arduino, and in true embroidery sampler fashion, have composed this circuit to see what I could do. The embroidery uses traditional floss and techniques mixed with lights and sounds generated by the onboard software. The amount of light sensed by the sensor changes the speed and pitch of the lights and sounds generated. Move your shadow or hand over it to experience the changes. Upcoming will be an exciting collaboration with Collin Cunningham to make it make more interesting sound. For the time being the circuit is open source inasmuch as the traces are visible on the surface of the embroidery. This piece narrowly evaded being lost in my luggage on the return flight from Maker Faire; at the last minute I decided to carry it on. More info is back at Sternlab.
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