View source for WM2 Front Panel LEDs

The WM2 has 4 LED on the front panel.

=== Heartbeat ===
The heartbeat is an indicator of the running OS. It should make 2 flash per seconds. The faster means the CPU is more used.

=== Error ===
The error is lit when there is a big problem (parts of system are not running).

It blinks when there are audio drops (maybe due to system overload).

=== Audio ===
The LED is lit when all inputs have audio.

It blinks fast when some inputs have audio, but not all.

It is off is there is no audio input.

=== Watermark ===
When the LED is lit, all watermarking are OK.

It blinks fast when some watermarking are not OK.

It blinks when all watermarking are OK, but without NTP.

It blinks slowly when some watermarking are not OK, and without NTP.
<br />