#!/usr/bin/python

import serial

s = serial.Serial(port='/dev/ttyUSB0', baudrate=9600, timeout=5)

data = ""

while True:
    chunk = s.read(16)
    if chunk:
        data += chunk
    elif data:
        # 5 second timeout after data means we stop
        break
    print "%5i bytes received\r" % len(data),

print "\nReceived %i bytes total" % len(data)

out = file("out.bin", "wb")
for i in range(0, len(data), 2):
    val = int(data[i:i+2], 16)
    out.write(chr(val))