Hello World example for the PCF8574

Dependencies:   mbed PCF8574

Revision:
0:c259a8e53a38
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCF8574.lib	Thu Jun 03 13:02:05 2010 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/simon/code/PCF8574/#ec8da0c59403