Started following some tutorial on att85 usi. Downloaded example code from make avr book.

Make AVR Examples/Chapter06_Digital-Input/bossButton/bossButton.py

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+## Simple demo
+## Sits forever listening to serial port
+## When you press button, opens website of your choosing.
+## Extend this to many buttons and you'll have a physical
+##  web-launcher.  
+
+BOSS_SITE = "http://www.cartalk.com/content/boss-redirect"
+## or perhaps more topical...
+XKCD = "http://xkcd.com/353/"
+
+SERIAL_PORT = "/dev/ttyUSB0"
+BAUD_RATE = 9600
+
+import serial
+import webbrowser
+
+sp = serial.Serial(SERIAL_PORT, BAUD_RATE, timeout = 5)
+sp.flush()
+print ("Boss Button")
+
+while(1):                       # Sit and wait forever
+    response = sp.read(1)       # get one byte
+    if response == "O":
+        print ("Got OK Byte.  Waiting for button press.")
+    elif response == b"X":
+        print ("Got Boss Byte!  Alarm!")
+        webbrowser.open(BOSS_SITE)
+    else:
+        print ("Got nothing.  Still waiting.")
+
+