Blynk example, for all boards using plain Serial/USB connection

Dependencies:   Blynk mbed

Revision:
0:fb1ab71ae857
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Mon Nov 27 22:46:55 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e7ca05fa8600
\ No newline at end of file