# SFBQLED.h File Reference

Queuing system to blink the built-in LEDs without blocking. More...

`#include "SFBTypes.h"`
`#include "SFBConstants.h"`

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## Data Structures
class | SFBQLED
| A simple queuing system to allow displaying various 'blink patterns' on the SFB built-in LEDs without having to block. More...
struct | SFBQLED::qentry
## Enumerations
enum | SFBQLEDWhenIdleModes { QLED_IDLE_OFF, QLED_IDLE_ON, QLED_IDLE_REFLEX }
| Mode values for the second argument to SFBQLED::whenIdle(). More...
## Variables
SFBQLED | QLED
| A SFBQLED object provided to control the built-in LEDs without blocking.

## Detailed Description

Queuing system to blink the built-in LEDs without blocking.

Author:
  David H. Ackley.

Date:
  (C) 2009 All rights reserved.

Code License:
  The GNU Lesser General Public License

License Note:
  All code samples shown in documentation are placed into the public domain.

## Enumeration Type Documentation

enum SFBQLEDWhenIdleModes

Mode values for the second argument to SFBQLED::whenIdle().

Enumerator:

  QLED_IDLE_OFF | LED should be off when no events are scheduled on it.
  QLED_IDLE_ON | LED should be on when no events are scheduled on it.
  QLED_IDLE_REFLEX | LED should be returned to reflex control when no events are scheduled on it.