Some newer Intel NUCs support software controlled ring and power LEDs, which are supported under Linux with a kernel module found in https://github.com/milesp20/intel_nuc_led .
This repository provides a simple python interface and a command-line tool using it.
See https://github.com/milesp20/intel_nuc_led for supported devices and instructions how to set-up the kernel driver.
$ nucled
== Ring LED ==
Brightness: 50
Color: Color.Red
Effect: Effect.Solid
Usage: nucled [OPTIONS] COMMAND [ARGS]...
Control LEDs of Intel NUC computers.
Options:
--ring Control ring led
--power Control power led
--help Show this message and exit.
Commands:
brightness Get or set brightness [0,100].
color Get or set color.
effect Get or set effect.
notify Change the LED settings for a duration.
raw Write raw string, useful for testing.
status Print current values for the led.
Use either Ring or Power class for initialization.
All changes are done with property setters, and are first applied when calling set_state().
Alternatively you can let context manager to handle this for you, e.g.,
from nucled import Ring, Color, Effect
with Ring() as ring:
print("Current state: %s" % ring)
ring.color = Color.Green
ring.effect = Effect.FadeMedium