code: def hum44(msg):
      
      d = hex2bin(data(msg))
  
      if d[49] == '0':
          return None
  
      hm = bin2int(d[50:56]) * 100.0 / 64    # %
  
      return round(hm, 1)
docs: humidity
  
      Args:
          msg (String): 28 bytes hexadecimal message string
  
      Returns:
          float: percentage of humidity, [0 - 100] %