OpenSquare is an experiment about hacking any RC car and transforming it into a powder/flour/paint dispenser to write huge messages on a square in the city.
I want to explore some cheap/lowtech/lowknowledge/offthegrid way for any activist to write a big alternative message without prior consent.
Here it's testing the ability to draw with salt with the hacked RC car.
More at: http://myide.tumblr.com/tagged/opensquare
And make your own following the instructions: http://www.instructables.com/id/OpenSquare-Write-big-with-a-RC-car/