-
Notifications
You must be signed in to change notification settings - Fork 0
/
strandtest.py
207 lines (174 loc) · 7.72 KB
/
strandtest.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
#!/usr/bin/env python3
# NeoPixel library strandtest example
# Author: Tony DiCola ([email protected])
#
# Direct port of the Arduino NeoPixel library strandtest example. Showcases
# various animations on a strip of NeoPixels.
import time
from neopixel import *
import argparse
import random
# LED strip configuration:
LED_COUNT = 125 # Number of LED pixels.
LED_PIN = 18 # GPIO pin connected to the pixels (18 uses PWM!).
#LED_PIN = 10 # GPIO pin connected to the pixels (10 uses SPI /dev/spidev0.0).
LED_FREQ_HZ = 800000 # LED signal frequency in hertz (usually 800khz)
LED_DMA = 10 # DMA channel to use for generating signal (try 10)
LED_BRIGHTNESS = 255 # Set to 0 for darkest and 255 for brightest
LED_INVERT = False # True to invert the signal (when using NPN transistor level shift)
LED_CHANNEL = 0 # set to '1' for GPIOs 13, 19, 41, 45 or 53
# Define functions which animate LEDs in various ways.
def colorWipe(strip, color, wait_ms=50):
"""Wipe color across display a pixel at a time."""
for i in range(strip.numPixels()):
strip.setPixelColor(i, color)
strip.show()
time.sleep(wait_ms/1000.0)
def theaterChase(strip, color, wait_ms=50, iterations=10):
"""Movie theater light style chaser animation."""
for j in range(iterations):
for q in range(3):
for i in range(0, strip.numPixels(), 3):
strip.setPixelColor(i+q, color)
strip.show()
time.sleep(wait_ms/1000.0)
for i in range(0, strip.numPixels(), 3):
strip.setPixelColor(i+q, 0)
def wheel(pos):
"""Generate rainbow colors across 0-255 positions."""
if pos < 85:
return Color(pos * 3, 255 - pos * 3, 0)
elif pos < 170:
pos -= 85
return Color(255 - pos * 3, 0, pos * 3)
else:
pos -= 170
return Color(0, pos * 3, 255 - pos * 3)
def rainbow(strip, wait_ms=20, iterations=1):
"""Draw rainbow that fades across all pixels at once."""
for j in range(256*iterations):
for i in range(strip.numPixels()):
strip.setPixelColor(i, wheel((i+j) & 255))
strip.show()
time.sleep(wait_ms/1000.0)
def rainbowCycle(strip, wait_ms=20, iterations=5):
"""Draw rainbow that uniformly distributes itself across all pixels."""
for j in range(256*iterations):
for i in range(strip.numPixels()):
strip.setPixelColor(i, wheel((int(i * 256 / strip.numPixels()) + j) & 255))
strip.show()
time.sleep(wait_ms/1000.0)
def theaterChaseRainbow(strip, wait_ms=50):
"""Rainbow movie theater light style chaser animation."""
for j in range(256):
for q in range(3):
for i in range(0, strip.numPixels(), 3):
strip.setPixelColor(i+q, wheel((i+j) % 255))
strip.show()
time.sleep(wait_ms/1000.0)
for i in range(0, strip.numPixels(), 3):
strip.setPixelColor(i+q, 0)
def rain(strip, wait_s=0.075, iterations=25):
pickedNumbers = []
column = random.randint(0,24)
for x in range(iterations):
while column in pickedNumbers:
column = random.randint(0,24) #Stop the same collum getting choosen twice
pickedNumbers.append(column)
colour = Color(random.randint(0,255), random.randint(0,255), random.randint(0,255))
strip.setPixelColor(100 + column, colour)
strip.show()
time.sleep(wait_s)
for i in range(1,5):
strip.setPixelColor((100+column)-(25*i), colour)
strip.setPixelColor((100+column)-(25*(i-1)), Color(0,0,0))
strip.show()
time.sleep(wait_s)
def randfill(strip, wait_s=0.1):
pickedNumbers = []
light = random.randint(0,124)
colour = Color(255,255,255)
for x in range(25):
while light in pickedNumbers:
light = random.randint(0,124) #Stop the same collum getting choosen twice
pickedNumbers.append(light)
strip.setPixelColor(light, colour)
time.sleep(wait_s)
strip.show()
def randfill_top(strip, wait_s=0.05):
pickedNumbers = []
light = random.randint(0,24)
colour = Color(255,255,255)
for x in range(25):
while light in pickedNumbers:
light = random.randint(0,24) #Stop the same collum getting choosen twice
pickedNumbers.append(light)
strip.setPixelColor(light + 100, colour)
time.sleep(wait_s)
strip.show()
def stripClear(strip):
for i in range(LED_COUNT):
strip.setPixelColor(i, Color(0,0,0))
strip.show()
def singleColorWipe(strip, color, wait_ms=25):
strip.setPixelColor(0, color)
for i in range(1,strip.numPixels()):
strip.setPixelColor(i, color)
strip.setPixelColor(i-1, Color(0,0,0))
strip.show()
time.sleep(wait_ms/1000.0)
stripClear(strip)
def singleColorWipeDown(strip, color, wait_ms=500):
strip.setPixelColor(strip.numPixels(), color)
for i in range(strip.numPixels()-1, 0, -1):
strip.setPixelColor(i, color)
#strip.setPixelColor(i+1, Color(0,0,0))
strip.show()
time.sleep(wait_ms/1000.0)
# Main program logic follows:
if __name__ == '__main__':
# Process arguments
parser = argparse.ArgumentParser()
parser.add_argument('-c', '--clear', action='store_true', help='clear the display on exit')
args = parser.parse_args()
# Create NeoPixel object with appropriate configuration.
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
# Intialize the library (must be called once before other functions).
strip.begin()
print ('Press Ctrl-C to quit.')
if not args.clear:
print('Use "-c" argument to clear LEDs on exit')
print(strip.numPixels())
try:
stripClear(strip)
while True:
singleColorWipe(strip, Color(255,0,0))
singleColorWipe(strip, Color(0,255,0))
singleColorWipe(strip, Color(0,0,255))
singleColorWipe(strip, Color(255,255,255))
randfill_top(strip)
time.sleep(1)
rain(strip)
time.sleep(1)
stripClear(strip)
time.sleep(1)
theaterChase(strip, Color(127, 127, 127)) # White theater chase
theaterChase(strip, Color(127, 0, 0)) # Red theater chase
theaterChase(strip, Color( 0, 0, 127)) # Blue theater chase
theaterChase(strip, Color( 0, 127, 0))
time.sleep(1)
stripClear(strip)
time.sleep(2)
colorWipe(strip, Color(255, 0, 0)) # Red wipe
colorWipe(strip, Color(0, 255, 0)) # Red wipe
colorWipe(strip, Color(0, 0, 255)) # Red wipe
time.sleep(1)
stripClear(strip)
time.sleep(1)
rainbowCycle(strip, wait_ms=200, iterations=1)
time.sleep(1)
stripClear(strip)
time.sleep(1)
except KeyboardInterrupt:
if args.clear:
colorWipe(strip, Color(0,0,0), 0.1)