What if people would expose and visualize their text messages on public buildings? If your Facebook status would be printed on a real, physical wall? What if you actually checked in when you checked in?
The wall printer takes the wall status concept back to physical dimensions.

Inspired by old-school pin printers, the wall printer is a manually held device using seven markers to print digital messages on any flat surface. Seven individually controlled servo motors move the markers up and down, drawing dots and dashes. When the printer is manually sliding over a wall, the mechanical motions are carefully timed to produce textual messages.

Connected to a cell phone, the printer can be directly fed by SMS text messages, social media statuses, GPS coordinates, or any other digital data source.
It uses an IOIO board to connect the physical electronic parts to an Android device and control them from an Android application.

This project was done with the help and advice of Ytai Ben Tsvi, IOIO inventor.

Technique: Painting machine (electronics, mechanics, software), markers