Blinky program for SDT boards.

Revision:
0:ef1d002e930e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Aug 29 02:13:34 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os.git/#2e081dc7d0b9c56f4e1d7473c1b8285c74f33a88