A simple python script to send commands to the LG AN-WL100 Wireless Media Kit through its TRS service port. Requires serial library. Tested with Python 2.7

lgSerial.py

import sys, re, serial

def showHelp():
    print ""
    print "\t%s COM_PORT_NUMBER COMMAND" % sys.argv[0]
    print "\t\t commands can have spaces (xb 00 70) or not (xb0070)"
    print ""

def getDeviceFromStr(deviceArg):
    # if it's just an int, we'll assume it's a windows COM port
    # otherwise, we'll take assume the whole string should be used
    device = deviceArg
    try:
        device = int(deviceArg)
    finally:
        return device

def main():
    if (sys.argv[1] == '--help'):
        # display help menu
        showHelp()
        return
    
    args = sys.argv[2:]
    # add spaces to command if not present. also always append CRLF
    command = ' '.join(re.findall('..?', args[0]) if len(args) == 1 else args)+'\r\n'
    h = None
    try:
        device = getDeviceFromStr(sys.argv[1])
        h = serial.Serial(device, 9600, parity=serial.PARITY_NONE)
        h.write(command)
    except:
        showHelp()
    finally:
        if h: h.close()

if __name__ == "__main__":
    main()