need to check rpm or rad/s for angular velocity

Dependencies:   mbed ros_lib_indigo

Revision:
0:68d5289b45cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ros_lib_indigo.lib	Fri Apr 20 09:49:22 2018 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/garyservin/code/ros_lib_indigo/#fd24f7ca9688