This sketch shown how to read a single switch with pull up resistor

Dependencies:   mbed

Revision:
0:fb95cef55dd9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Mar 18 18:12:03 2016 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/c0f6e94411f5
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