new_contents: import sys
  import time
  import datetime
  import argparse
  import struct
  
  import serial
  
  sys.path.append('../lib')
  import hdlc
  
  parser = argparse.ArgumentParser(description="RustTelemetry", formatter_class=argparse.ArgumentDefaultsHelpFormatter)
  parser.add_argument("--port", type=str, default="/dev/tty.usbserial-A8008iwL", help="usb serial port device eg. /dev/ttyUSB0")
  args = parser.parse_args()
  
  s = serial.Serial(args.port, 57600, timeout=0.01);
  s.flushInput()
  s.flushOutput()
  
  parser = hdlc.HdlcChecksummed()
  
  BC_TELEMETRY = 0x00
  
  while 1:
      data = s.read(20)
      if data:
          parser.put(data)
  
      for packet in parser:
          header, = struct.unpack("<B", packet[:1])
          if header == BC_TELEMETRY:
              left, right, front_left, front_right = struct.unpack("<BBBB", packet[1:])
              print "l %u r %u fl %u fr %u" % (left, right, front_left, front_right)
  
      time.sleep(0.001)
  
subject: add little python program that prints telemetry packets