Updating tests while testing on linux

examples/serial_example.cc

@@ -1,5 +1,6 @@
 #include <string>
 #include <iostream>
+#include <stdio.h>
 
 #include <boost/thread.hpp>
 

tests/proof_of_concepts/python_serial_test.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+
+import serial, sys
+
+if len(sys.argv) != 2:
+    print "python: Usage_serial_test <port name like: /dev/ttyUSB0>"
+    sys.exit(1)
+
+sio = serial.Serial(sys.argv[1], 115200)
+sio.timeout = 250
+
+while True:
+    sio.write("Testing.")
+    print sio.read(8)
+