https://www.adafruit.com/product/1077

Revision:
0:acd3444161e9
diff -r 000000000000 -r acd3444161e9 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Wed Mar 28 04:40:24 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#addec7ba10054be03849eff58a1d17f157391e7d