====== lcd_cron_temp_v2.py ======

  #!/usr/bin/python
  import os
  import glob
  import time
  import lcddriver
  import subprocess, platform
  lcd = lcddriver.lcd()
  
  #os.system('modprobe w1-gpio')
  #os.system('modprobe w1-therm')
  
  dest_check = 'ssh -i /home/pi/.ssh/id_rsa -o ConnectTimeout=1 -o ConnectionAttempts=2 -o StrictHostKeyChecking=no pi@10.11.12.130 exit; echo $?'
  dest_check_nc_aruba_fr = 'nc -z -v -w5 172.17.17.7 22; echo $?'
  dest_check_nc_aruba_cz = 'nc -z -v -w5 172.31.32.1 22; echo $?'
  dest_temp = 'ssh -i /home/pi/.ssh/id_rsa pi@10.11.12.130 "python /usr/local/bin/temp-sensor1.py"'
  
  base_dir = '/sys/bus/w1/devices/'
  device_folder = glob.glob(base_dir + '28*')[0]
  #device_file = device_folder + '/w1_slave'
  device_file = '/sys/bus/w1/devices/28-020e91771447/w1_slave'
  def read_temp_raw():
      f = open(device_file, 'r')
      lines = f.readlines()
      f.close()
      return lines
  
  def read_temp():
      lines = read_temp_raw()
      while lines[0].strip()[-3:] != 'YES':
          time.sleep(0.2)
          lines = read_temp_raw()
      equals_pos = lines[1].find('t=')
      if equals_pos != -1:
          temp_string = lines[1][equals_pos+2:]
          temp_c = float(temp_string) / 1000.0
          temp_f = temp_c * 9.0 / 5.0 + 32.0
          return temp_c
  
  def read_temp_zlla():
      conn_check_temp = subprocess.Popen(dest_check, shell=True, stdout=subprocess.PIPE)
      conn_check = float(conn_check_temp.stdout.read())
      if conn_check == 0:
        temp_zlla_c_temp = subprocess.Popen(dest_temp, shell=True, stdout=subprocess.PIPE)
        temp_zlla_c = float(temp_zlla_c_temp.stdout.read())
        return temp_zlla_c
      else:
        return "DOWN"
  
  def check_up_or_down(dest_check):
      conn_check_nc_shell = subprocess.Popen(dest_check, shell=True, stdout=subprocess.PIPE)
      conn_check_nc = float(conn_check_nc_shell.stdout.read())
      if conn_check_nc == 0:
        return "Up"
      else:
        return "DOWN"
  
  
  lcd.lcd_clear()
  temp1 = "Temp1: " + str(read_temp())
  lcd.lcd_display_string(str(temp1),1)
  temp2 = "Temp2: " + str(read_temp_zlla())
  lcd.lcd_display_string(str(temp2),2)
  lcdrow3 = "Link Aruba Fr: " + str(check_up_or_down(dest_check_nc_aruba_fr))
  lcd.lcd_display_string(str(lcdrow3),3)
  lcdrow4 = "Link Aruba CZ: " + str(check_up_or_down(dest_check_nc_aruba_cz))
  lcd.lcd_display_string(str(lcdrow4),4)
  #logging
  loggertemp1 = "/usr/bin/logger temp executed - " + temp1
  loggertemp2 = "/usr/bin/logger temp executed - " + temp2
  #print(temp1)
  #print(temp2)
  subprocess.Popen(loggertemp1, shell=True, stdout=subprocess.PIPE)
  subprocess.Popen(loggertemp2, shell=True, stdout=subprocess.PIPE)


  * other option


  #!/usr/bin/python
  import os
  import glob
  import time
  import lcddriver
  import subprocess, platform
  lcd = lcddriver.lcd()
  
  #os.system('modprobe w1-gpio')
  #os.system('modprobe w1-therm')
  
  dest_check = 'ssh -i /home/pi/.ssh/id_rsa -o ConnectTimeout=1 -o ConnectionAttempts=2 -o StrictHostKeyChecking=no pi@10.11.12.130 exit; echo $?'
  dest_check_nc_aruba_pi4_zllapek = 'nc -z -v -w5 10.11.12.130 22; echo $?'
  dest_check_nc_aruba_fr = 'nc -z -v -w5 172.17.17.7 22; echo $?'
  dest_check_nc_aruba_cz = 'nc -z -v -w5 172.31.32.1 22; echo $?'
  dest_temp = 'ssh -i /home/pi/.ssh/id_rsa pi@10.11.12.130 "python /usr/local/bin/temp-sensor1.py"'
  
  base_dir = '/sys/bus/w1/devices/'
  device_folder = glob.glob(base_dir + '28*')[0]
  #device_file = device_folder + '/w1_slave'
  device_file = '/sys/bus/w1/devices/28-020e91771447/w1_slave'
  def read_temp_raw():
      f = open(device_file, 'r')
      lines = f.readlines()
      f.close()
      return lines
  
  def read_temp():
      lines = read_temp_raw()
      while lines[0].strip()[-3:] != 'YES':
          time.sleep(0.2)
          lines = read_temp_raw()
      equals_pos = lines[1].find('t=')
      if equals_pos != -1:
          temp_string = lines[1][equals_pos+2:]
          temp_c = float(temp_string) / 1000.0
          temp_f = temp_c * 9.0 / 5.0 + 32.0
          return temp_c
  
  def read_temp_zlla():
      conn_check_temp = subprocess.Popen(dest_check_nc_aruba_pi4_zllapek, shell=True, stdout=subprocess.PIPE)
      conn_check = float(conn_check_temp.stdout.read())
      if conn_check == 0:
        temp_zlla_c_temp = subprocess.Popen(dest_temp, shell=True, stdout=subprocess.PIPE)
        temp_zlla_c = float(temp_zlla_c_temp.stdout.read())
        return temp_zlla_c
      else:
        return "DOWN"
  
  def check_up_or_down(dest_check):
      conn_check_nc_shell = subprocess.Popen(dest_check, shell=True, stdout=subprocess.PIPE)
      conn_check_nc = float(conn_check_nc_shell.stdout.read())
      if conn_check_nc == 0:
        return "UP"
      else:
        return "DOWN"
  
  
  lcd.lcd_clear()
  temp1 = "Temp1: " + str(read_temp())
  lcd.lcd_display_string(str(temp1),1)
  temp2 = "Temp2: " + str(read_temp_zlla())
  lcd.lcd_display_string(str(temp2),2)
  lcdrow3 = "Link Aruba Fr: " + str(check_up_or_down(dest_check_nc_aruba_fr))
  lcd.lcd_display_string(str(lcdrow3),3)
  lcdrow4 = "Link Aruba CZ: " + str(check_up_or_down(dest_check_nc_aruba_cz))
  lcd.lcd_display_string(str(lcdrow4),4)
  #logging
  loggertemp1 = "/usr/bin/logger temp executed - " + temp1
  loggertemp2 = "/usr/bin/logger temp executed - " + temp2
  #print(temp1)
  #print(temp2)
  subprocess.Popen(loggertemp1, shell=True, stdout=subprocess.PIPE)
  subprocess.Popen(loggertemp2, shell=True, stdout=subprocess.PIPE)
  
  
====== version 3 ======

  * import of lcd library happens right before the execution of lcd clear

    #!/usr/bin/python
  import os
  import glob
  import time
  import lcddriver
  import subprocess, platform
  #lcd = lcddriver.lcd() using it down
  
  #os.system('modprobe w1-gpio')
  #os.system('modprobe w1-therm')
  
  dest_check = 'ssh -i /home/pi/.ssh/id_rsa -o ConnectTimeout=1 -o ConnectionAttempts=2 -o StrictHostKeyChecking=no pi@10.11.12.130 exit; echo $?'
  dest_check_nc_aruba_pi4_zllapek = 'nc -z -v -w5 10.11.12.130 22; echo $?'
  dest_check_nc_aruba_fr = 'nc -z -v -w5 172.17.17.7 22; echo $?'
  dest_check_nc_aruba_cz = 'nc -z -v -w5 172.31.32.1 22; echo $?'
  dest_check_nc_peje = 'nc -z -v -w5 172.17.17.3 22; echo $?'
  dest_check_nc_dardi = 'nc -z -v -w5 172.17.17.2 22; echo $?'
  dest_temp = 'ssh -i /home/pi/.ssh/id_rsa pi@10.11.12.130 "python /usr/local/bin/temp-sensor1.py"'
  
  base_dir = '/sys/bus/w1/devices/'
  device_folder = glob.glob(base_dir + '28*')[0]
  #device_file = device_folder + '/w1_slave'
  device_file = '/sys/bus/w1/devices/28-020e91771447/w1_slave'
  def read_temp_raw():
      f = open(device_file, 'r')
      lines = f.readlines()
      f.close()
      return lines
  
  def read_temp():
      lines = read_temp_raw()
      while lines[0].strip()[-3:] != 'YES':
          time.sleep(0.2)
          lines = read_temp_raw()
      equals_pos = lines[1].find('t=')
      if equals_pos != -1:
          temp_string = lines[1][equals_pos+2:]
          temp_c = float(temp_string) / 1000.0
          temp_f = temp_c * 9.0 / 5.0 + 32.0
          return temp_c
  
  def read_temp_zlla():
      conn_check_temp = subprocess.Popen(dest_check_nc_aruba_pi4_zllapek, shell=True, stdout=subprocess.PIPE)
      conn_check = float(conn_check_temp.stdout.read())
      if conn_check == 0:
        temp_zlla_c_temp = subprocess.Popen(dest_temp, shell=True, stdout=subprocess.PIPE)
        temp_zlla_c = float(temp_zlla_c_temp.stdout.read())
        return temp_zlla_c
      else:
        return "DOWN"
  
  def check_up_or_down(dest_check):
      conn_check_nc_shell = subprocess.Popen(dest_check, shell=True, stdout=subprocess.PIPE)
      conn_check_nc = float(conn_check_nc_shell.stdout.read())
      if conn_check_nc == 0:
        return "UP"
      else:
        return "DOWN"
  
  
  temp1 = "T1: " + str(read_temp())
  temp2 = ", T2: " + str(read_temp_zlla())
  lcdrow2_peje = "Peje:" + str(check_up_or_down(dest_check_nc_peje))
  lcdrow2_dardi = ", Dardi:" + str(check_up_or_down(dest_check_nc_dardi))
  lcdrow3 = "Link Aruba Fr: " + str(check_up_or_down(dest_check_nc_aruba_fr))
  lcdrow4 = "Link Aruba CZ: " + str(check_up_or_down(dest_check_nc_aruba_cz))
  
  #lcd display
  lcd = lcddriver.lcd()
  lcd.lcd_display_string(str(temp1+temp2),1)
  lcd.lcd_display_string(str(lcdrow2_peje+lcdrow2_dardi),2)
  lcd.lcd_display_string(str(lcdrow3),3)
  lcd.lcd_display_string(str(lcdrow4),4)
  
  
  #logging
  loggertemp1 = "/usr/bin/logger temp executed - " + temp1
  loggertemp2 = "/usr/bin/logger temp executed - " + temp2
  #print(temp1)
  #print(temp2)
  subprocess.Popen(loggertemp1, shell=True, stdout=subprocess.PIPE)
  subprocess.Popen(loggertemp2, shell=True, stdout=subprocess.PIPE)
  
====== version 4 ======

adding for nc check x times with nc

  #!/usr/bin/python
  import os
  import glob
  import time
  import lcddriver
  import subprocess, platform
  #lcd = lcddriver.lcd() using it down
  
  #os.system('modprobe w1-gpio')
  #os.system('modprobe w1-therm')
  
  dest_check = 'ssh -i /home/pi/.ssh/id_rsa -o ConnectTimeout=1 -o ConnectionAttempts=2 -o StrictHostKeyChecking=no pi@10.11.12.130 exit; echo $?'
  dest_check_nc_aruba_pi4_zllapek = 'nc -z -v -w2 10.11.12.130 22; echo $?'
  dest_check_nc_aruba_fr = 'nc -z -v -w2 172.17.17.7 22; echo $?'
  dest_check_nc_aruba_cz = 'nc -z -v -w2 172.31.32.1 22; echo $?'
  dest_check_nc_peje = 'nc -z -v -w5 172.17.17.3 22; echo $?'
  dest_check_nc_dardi = 'nc -z -v -w5 172.17.17.2 22; echo $?'
  dest_temp = 'ssh -i /home/pi/.ssh/id_rsa pi@10.11.12.130 "python /usr/local/bin/temp-sensor1.py"'
  
  base_dir = '/sys/bus/w1/devices/'
  device_folder = glob.glob(base_dir + '28*')[0]
  #device_file = device_folder + '/w1_slave'
  device_file = '/sys/bus/w1/devices/28-020e91771447/w1_slave'
  def read_temp_raw():
      f = open(device_file, 'r')
      lines = f.readlines()
      f.close()
      return lines
  
  def read_temp():
      lines = read_temp_raw()
      while lines[0].strip()[-3:] != 'YES':
          time.sleep(0.2)
          lines = read_temp_raw()
      equals_pos = lines[1].find('t=')
      if equals_pos != -1:
          temp_string = lines[1][equals_pos+2:]
          temp_c = float(temp_string) / 1000.0
          temp_f = temp_c * 9.0 / 5.0 + 32.0
          return temp_c
  
  def read_temp_zlla():
  
    i=0
    x=5
    while i < x:
      conn_check_temp = subprocess.Popen(dest_check_nc_aruba_pi4_zllapek, shell=True, stdout=subprocess.PIPE)
      conn_check = int(conn_check_temp.stdout.read())
      i += 1
      time.sleep(5)
      if conn_check == 0:
        temp_zlla_c_temp = subprocess.Popen(dest_temp, shell=True, stdout=subprocess.PIPE)
        temp_zlla_c = float(temp_zlla_c_temp.stdout.read())
        return temp_zlla_c
        i = x
    else:
      return "DOWN"
  
  def check_up_or_down(dest_check):
      conn_check_nc_shell = subprocess.Popen(dest_check, shell=True, stdout=subprocess.PIPE)
      conn_check_nc = float(conn_check_nc_shell.stdout.read())
      if conn_check_nc == 0:
        return "UP"
      else:
        return "DOWN"
  
  
  temp1 = "T1: " + str(read_temp())
  temp2 = ", T2: " + str(read_temp_zlla())
  lcdrow2_peje = "Peje:" + str(check_up_or_down(dest_check_nc_peje))
  lcdrow2_dardi = ", Dardi:" + str(check_up_or_down(dest_check_nc_dardi))
  lcdrow3 = "Link Aruba Fr: " + str(check_up_or_down(dest_check_nc_aruba_fr))
  lcdrow4 = "Link Aruba CZ: " + str(check_up_or_down(dest_check_nc_aruba_cz))
  
  #lcd display
  lcd = lcddriver.lcd()
  lcd.lcd_display_string(str(temp1+temp2),1)
  lcd.lcd_display_string(str(lcdrow2_peje+lcdrow2_dardi),2)
  lcd.lcd_display_string(str(lcdrow3),3)
  lcd.lcd_display_string(str(lcdrow4),4)
  
  
  #logging
  loggertemp1 = "/usr/bin/logger temp executed - " + temp1
  loggertemp2 = "/usr/bin/logger temp executed - " + temp2
  #print(temp1)
  #print(temp2)
  subprocess.Popen(loggertemp1, shell=True, stdout=subprocess.PIPE)
  subprocess.Popen(loggertemp2, shell=True, stdout=subprocess.PIPE)