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A PCRE internal error occured. This might be caused by a faulty plugin
airodump-ng is scanning the wifi
this code parses the .csv file airodump is writing to and uses the value of '#IV's or the amount of data packets to send positional values to linear actuators.
<code python>
import subprocess, glob, time, csv
from arduino import Arduino, Servo
# scanning part -----------------
# if you want to run airodump from python;
# disadvantage: doesn't run in the background
#cmd='airodump-ng --bssid 14:D6:4D:B6:97:3C -w /home/selena/doc/synergia/sator/scanning/salzamt1109 mon0'
#cmd=subprocess.call(cmd.split())
def lookup(table):
scan=open(table)
next(scan)
scanDict=csv.DictReader(scan, delimiter=',')
for adict in scanDict:
data=adict.get(' # IV')
if data!=None:
return data
airodump='/home/selena/doc/synergia/sator/scanning/salzamt1109-01.csv'
# moving part -------------------
portz=glob.glob("/dev/ttyUSB*")[0]
#print portz
my_board=Arduino(portz)
my_board.output([9, 11])
linearone=my_board.attachServo(9)
lineartwo=my_board.attachServo(11)
position=40
linearone.write(position), lineartwo.write(position)
time.sleep(1)
packets=int(lookup(airodump))
print 'packets', packets
time.sleep(10)
while True:
newPackets=int(lookup(airodump))
packetsDiff=newPackets-packets
print 'packetsDiff', packetsDiff
# decide whether to stretch or shrink:
if packetsDiff>10:
newPosition=position+(packetsDiff/5)
print 'should stretch', newPosition
if newPosition <=140:
print 'and will do'
linearone.write(newPosition), lineartwo.write(newPosition)
else:
print 'already at maximum'
# reset
position=120
elif packetsDiff<=0:
newPosition=position-10
print 'shrinking', newPosition
if newPosition >= 40:
print 'will do'
linearone.write(newPosition), lineartwo.write(newPosition)
else:
print 'already at minumum'
position=50
time.sleep(5)
packets=newPackets
position=newPosition
</code>