Gurkengewuerz/audio-reactive-led-strip
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Python 2.7 compatibility fix

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This commit is contained in:
Scott Lawson 2017-01-05 02:41:04 -08:00
parent d828f5a273
commit 219eb2b62f
1 changed files with 13 additions and 9 deletions
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22
python/led.py
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@ -1,7 +1,7 @@
from __future__ import print_function
from __future__ import division
from __future__ import unicode_literals
import platform
import numpy as np
import config
@ -48,18 +48,22 @@ def _update_esp8266():
# Optionally apply gamma correctio
p = _gamma[pixels] if config.SOFTWARE_GAMMA_CORRECTION else np.copy(pixels)
# Send UDP packets when using ESP8266
m = []
is_python_2 = int(platform.python_version_tuple()[0]) == 2
m = '' if is_python_2 else []
for i in range(config.N_PIXELS):
# Ignore pixels if they haven't changed (saves bandwidth)
if np.array_equal(p[:, i], _prev_pixels[:, i]):
continue
# Byte
m.append(i) # Index of pixel to change
m.append(p[0][i]) # Pixel red value
m.append(p[1][i]) # Pixel green value
m.append(p[2][i]) # Pixel blue value
if is_python_2:
m += chr(i) + chr(p[0][i]) + chr(p[1][i]) + chr(p[2][i])
else:
m.append(i) # Index of pixel to change
m.append(p[0][i]) # Pixel red value
m.append(p[1][i]) # Pixel green value
m.append(p[2][i]) # Pixel blue value
m = m if is_python_2 else bytes(m)
_sock.sendto(m, (config.UDP_IP, config.UDP_PORT))
_prev_pixels = np.copy(p)
_sock.sendto(bytes(m), (config.UDP_IP, config.UDP_PORT))
def _update_pi():
@ -112,4 +116,4 @@ if __name__ == '__main__':
while True:
pixels = np.roll(pixels, 1, axis=1)
update()
time.sleep(0.01)
time.sleep(1)