You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
76 lines
2.2 KiB
76 lines
2.2 KiB
5 years ago
|
# NeoPixel library strandtest example
|
||
|
|
# Author: Tony DiCola (tony@tonydicola.com)
|
||
|
|
#
|
||
|
|
# Direct port of the Arduino NeoPixel library strandtest example. Showcases
|
||
|
|
# various animations on a strip of NeoPixels.
|
||
|
|
import time
|
||
|
|
|
||
|
|
from neopixel import *
|
||
|
|
|
||
|
|
|
||
|
|
# LED strip configuration:
|
||
|
|
LED_COUNT = 494 # Number of LED pixels.
|
||
|
|
LED_PIN = 18 # GPIO pin connected to the pixels (must support PWM!).
|
||
|
|
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
|
||
|
|
LED_STRIP = ws.SK6812_STRIP_RGBW
|
||
|
|
#LED_STRIP = ws.SK6812W_STRIP
|
||
|
|
|
||
|
|
class Led:
|
||
|
|
leds = []
|
||
|
|
def __init__(self, id, x, y):
|
||
|
|
self.x = x
|
||
|
|
self.y = y
|
||
|
|
Led.leds.append(self)
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
def colorFromIntensity(intensity):
|
||
|
|
#intensity should be 0-255
|
||
|
|
if intensity>20:
|
||
|
|
return Color(0,int(intensity),int(intensity/2),int(intensity/8)+20)
|
||
|
|
else:
|
||
|
|
return Color(0,0,0,20)
|
||
|
|
|
||
|
|
def intensityFromDistance(distance):
|
||
|
|
if distance<0:
|
||
|
|
return 0
|
||
|
|
intensity = 255-(distance/3)
|
||
|
|
if intensity < 0:
|
||
|
|
return 0
|
||
|
|
else:
|
||
|
|
return intensity
|
||
|
|
|
||
|
|
# Main program logic follows:
|
||
|
|
if __name__ == '__main__':
|
||
|
|
# Create NeoPixel object with appropriate configuration.
|
||
|
|
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL, LED_STRIP)
|
||
|
|
# Intialize the library (must be called once before other functions).
|
||
|
|
strip.begin()
|
||
|
|
|
||
|
|
print ('Press Ctrl-C to quit.')
|
||
|
|
|
||
|
|
with open("leds.txt", "r") as infile:
|
||
|
|
for line in infile:
|
||
|
|
entry = [int(x) for x in line.split(',')]
|
||
|
|
Led(entry[0], entry[1], entry[2])
|
||
|
|
|
||
|
|
# all LEDs now ready
|
||
|
|
edge = -500
|
||
|
|
t = 0
|
||
|
|
while True:
|
||
|
|
t+=1
|
||
|
|
for i, led in enumerate(Led.leds):
|
||
|
|
if t % 2 ==0:
|
||
|
|
strip.setPixelColor(i, Color(0b10101010,
|
||
|
|
0b10101010,
|
||
|
|
0b10101010,
|
||
|
|
0b10101010))
|
||
|
|
else:
|
||
|
|
strip.setPixelColor(i, Color(0,0,0,0))
|
||
|
|
strip.show()
|
||
|
|
time.sleep(1)
|