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motors-scanner-test-1

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====== salzamt, linz, 11. 09. 2012 ====== 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 #resets the packets position=newPosition #resets the position (so the next time it will compare with the updated value) </code>

motors-scanner-test-1.1347400048.txt.gz · Last modified: 2012/09/11 21:47 by 81.10.136.85