def changeSpeed(ev=None):
                tmp = 'speed'
                global spd
                spd = speed.get()
                data = tmp + str(spd)  # Change the integers into strings and combine them with the string 'speed'.  
                #print 'sendData = %s' % data
                print '\nUser command = ', data
                print "Encrypted command = ",crypto.AES_encrypt(data,key)[2]

                tcpCliSock.send(str(crypto.AES_encrypt(data,key)))  # Send the speed data to the server(Raspberry Pi)
 def y_increase(event):
         print '\nUser command = y+'
         print "Encrypted command = ",crypto.AES_encrypt('y+',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('y+',key)))
 def x_decrease(event):
         print '\nUser command = x-'
         print "Encrypted command = ",crypto.AES_encrypt('x-',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('x-',key)))
 def home_fun(event):
         print '\nUser command = home'
         print "Encrypted command = ",crypto.AES_encrypt('home',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('home',key)))
 def stop_fun(event):
         print '\nUser command = stop'
         print "Encrypted command = ",crypto.AES_encrypt('stop',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('stop',key)))
 def right_fun(event):
         print '\nUser command = right'
         print "Encrypted command = ",crypto.AES_encrypt('right',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('right',key)))
 def backward_fun(event):
         print '\nUser command = backward'
         print "Encrypted command = ",crypto.AES_encrypt('backward',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('backward',key)))
 def forward_fun(event):
         print "\nUser command = forward"
         print "Encrypted command = ",crypto.AES_encrypt('forward',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('forward',key)))
 def quit_fun(event):
         print "\nShutting down program..."
         top.quit()
         tcpCliSock.send(str(crypto.AES_encrypt('stop',key)))
         tcpCliSock.close()
 def xy_home(event):
         print '\nUser command = xy_home'
         print "Encrypted command = ",crypto.AES_encrypt('xy_home',key)[2]
         tcpCliSock.send(str(crypto.AES_encrypt('xy_home',key)))