Gurkengewuerz/audio-reactive-led-strip
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Changed the Interrupt handling.

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Now SIGTERM and SIGINT will be caught and the LEDs will be turned off.
This commit is contained in:
Kevin Kellner 2017-01-06 19:44:10 +01:00
parent b23bbc4d22
commit 1b39f92df8
1 changed files with 9 additions and 3 deletions
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12
python/led.py
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@ -18,11 +18,17 @@ elif config.DEVICE == 'pi':
strip.begin()
elif config.DEVICE == 'blinkstick':
from blinkstick import blinkstick
import atexit
import signal
#Will turn all leds off when invoked.
def signal_handler(signal, frame):
all_off = [0]*(config.N_PIXELS*3)
stick.set_led_data(0, all_off)
sys.exit(0)
stick = blinkstick.find_first()
# Create a listener that turns the leds off when the program terminates
all_off = [0]*(config.N_PIXELS*3)
atexit.register(lambda: stick.set_led_data(0, all_off))
signal.signal(signal.SIGTERM, signal_handler)
signal.signal(signal.SIGINT, signal_handler)
_gamma = np.load(config.GAMMA_TABLE_PATH)
"""Gamma lookup table used for nonlinear brightness correction"""