NuMaker GPIO button with LED and buzzer

Revision:
1:7a0a00da91c7
Parent:
0:f700c61f47e5
Child:
5:4a573124ab4a
--- a/main.cpp	Thu Oct 13 10:39:25 2016 +0000
+++ b/main.cpp	Fri Oct 14 02:46:52 2016 +0000
@@ -1,3 +1,4 @@
+// For NuMaker-PFM-NUC472 GPIO pins connected to rgbled, green led, buzzer
 #include "mbed.h"
 
 DigitalOut    rgbled_B(PD_8); // low-active