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====== first prototype: RKNFG, salzamt, september 2012 ====== During a summer residency at Salzamt, Linz and within a project called Expand, Explore, Expose I developed a piece RKNFG that explores and exposes a part of 'hertzian' space. This term describes a collection of wireless signals - electromagnetic waves, that our electronic devices radiate and fill our environment with. RKNFG analyses WiFi signals and uses this as a parameter in design of spaces. The traffic through an access point is scanned and the amount of traffic is used to determine whether the space is going to 'grow' or 'shrink'. Users can interact with the installation through their smart phones or other portable Wi-Fi enables devices. * video from the exhibition opening http://vimeo.com/50707514 ===== interaction scheme ===== {{:rknfg-interaction-scheme.png?400|}} ===== technical details ===== cubicle (wood base + stretchable fabric sides) + linear actuators + arduino + laptop running airodump-ng on Debian ==== hadrware ==== * the structure: - plywood board base, 1x1m - plywood board top, 1x1m - white stretchable fabrix fixed on 3 sides {{:img_20120906_152720.jpg?nolink&200|}} {{:img_20120907_231737.jpg?nolink&112|}} {{:img_20120909_212544.jpg?nolink&112|}} {{:img_20120909_212433.jpg?nolink&200|}} - two Firgelli linear servo actuators, http://nodna.de/linear-actuator_11 {{http://www.phidgets.com/images/3541_0_Web.jpg?nolink&200|}} * controls: - Arduino Diecimila board - laptop: scanning and sending data to Arduino ==== software ==== * aircrack-ng, scanning network traffic (looks up the traffic on a specific BSSID, writes a dump to a .csv file) * [[extended-python-arduino-api|extended-python-arduino API]] firmware for the Arduino, with the associated arduino library * python script [[motors-scanner-test-1|motor-scanner.py]]: reads the .csv file, calcutlates the next position of the linear actuators based on the difference in the number of packets since the last calculation * more details: [[salzamt|RKNFG development]]
