====== QUADRICONE installation at Les Urbaines, Lausanne ======


{{::arlaud-visitor.jpg?nolink&200|}} {{::arlaud-sunday-allpoints.jpg?nolink&475|}}


===== interaction scheme =====

{{:quadricone-interaction-scheme.png?400|}}
===== technical details =====

[[stretchable-fabric|stretchable fabric]] + 4 HiTec servo motors + arduino + laptop running airodump-ng under Ubuntu Oneiric

==== hardware ====

  * the ceiling:
         - stretchable fabric, 2.25x7m
         - 2 wooden bars, 5x5cm, 2.25m long
         - 2 wire cables, 7m long
         - hooks, screws, staples...


  * the floor:
         - 4 HiTEC ultra torque servo motors, {{http://www.servocity.com/html/hs-645mg_ultra_torque.html|HS-645MG}}
         - modified the servos for continuous rotation, using this procedure [[servo-continuous-modify]]
         - four theatre weights to hold motors on the ground and wooden boxes to hide the motors
         - Arduino Mega (ATMEGA1280) board
         - custom made shield with connectors for the motors and independent power
         - 24W Universal AC Power Adapter, on 6v
         - plexiglass wheels on motors
         - laptop, scanning and sending data to Arduino


==== software ====

  * aircrack-ng, scanning network traffic (looks up the traffic on all available networks, writes a dump to a .csv file)
  * [[Multiple-Serial-Servo-Control|Arduino-Python 4-Axis Servo Control]] firmware by Principialabs, with the associated [[servo-py|servo.py]] library
  * python script [[quadricone-python-urbaines|quadricone.py]], reads the .csv file, finds four most active networks and calculates the position of motors based on the difference in the number of packets from the previous calculation

  * quadricone: [[making-of-quadricone2|making of]] // pictures  //
===== HOWTO =====

  * use this [[start-up-zurich|startup.sh]] script 

or 

  * start [[http://aircrack-ng.org|aircrack]]

<code bash>
airmon-ng start wlan0
</code>
(this will create an instance of the interface in the monitor mode, mon0)
<code bash>
airodump-ng -o csv -w [a file] mon0
</code>

 * in a separate terminal, run the [[quadricone-python-urbaines|python script]]:
<code>
python quadricone.py
</code>

 * alternatively, to check the functioning of the system without motors, run [[quadricone-python-urbaines-noservo|python test script]] 

<code>
python quadricone-test.py
</code>

  * when finished, stop airmon-ng
<code bash>airmon-ng stop wlan0
airmon-ng stop mon0
</code>