/**
 * \page keyob Key objects

Some basic predefined objects provide access to many of the core
software functions.

 - \ref Faces Access to the SFB 'faces', the four board edges which
   each carry serial communications, general purpose I/O pins, power,
   and an LED.  Can also be referred to individually, such as
   #NorthFace, or via Arduino Mega-like names, such as #Serial1

 - \ref Alarms Access to time-based events.  Create up to dozens of
   one-shot or repeating events that are scheduled by the millisecond.

 - \ref Body Access to 'reflexes', that determine how your sketches
   respond to packets

There are also objects providing access to more advanced capabilities.

 - #QLED Access to a 'queue of LED' events, providing a convenient
   way to blink the built-in LEDs without delaying execution.

 - \ref Timers Access to high-speed hardware timers.  Can also be
   referred to individually, such as #Timer1

 - \ref Profile Access to core software time monitoring system.  Your
   sketch can identify where its time is being spent, to enhance its
   'self awareness' or allow you to optimize its performance.

 */

