import datetime import time,datetime import numpy as np import random; from neopixel import * # LED strip configuration: LED_COUNT = 500 # 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 = 5 # DMA channel to use for generating signal (try 5) LED_BRIGHTNESS = 64 # Set to 0 for darkest and 255 for brightest LED_INVERT = False # True to invert the signal (when using NPN transistor level shift) # Define functions which animate LEDs in various ways. 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=3, 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=3, 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(((i * 256 / strip.numPixels()) + j) & 255)) strip.show() time.sleep(wait_ms/1000.0) def cyclecolumn (strip,colour): """light each column to bottom""" for c in range(0,9): for r in range (49,0,-1): strip.setPixelColor(mymatrix[r,c],colour ) strip.show() time.sleep(0.01) for c in range(0,9): for r in range (0,49): strip.setPixelColor(mymatrix[r,c],Color(0,0,0)) strip.show() time.sleep(0.01) #all off now def sparkly (strip,colour,cycles,dly): #flicker lights on a green tree def showframe(bmatrix): for ctree in range (0,LED_COUNT-1): strip.setPixelColor(ctree,bmatrix[ctree]) strip.show() def fillframe (bmatrix): for ctree in range (0,LED_COUNT-1): bmatrix[ctree]=colour #frame of colour+random stars #create blank frames of all colour fillframe(blankframe) fillframe(bm1) #clear old colour and replace with new fillframe(bm2) #make 50 random bright and less bright stars, show them with the blankframe for ctr in range (0,50): ranplace=random.randrange(0,LED_COUNT-1) bm1[ranplace]=Color(127,127,127) bm2[ranplace]=Color(255,255,255) #bm1 and 2 have random stars, bm2 is brightest for lps in range (cycles): showframe(blankframe) time.sleep(0.02) showframe(bm1) time.sleep(0.02) showframe(bm2) time.sleep(0.02) # 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) # Intialize the library (must be called once before other functions). strip.begin() mymatrix = np.arange(500).reshape(50,10) bm1=np.arange(500) bm2=np.arange(500) blankframe=np.arange(500) mymatrix=np.array([ [49,50,149,150,249,250,349,350,449,450], [48,51,148,151,248,251,348,351,448,451], [47,52,147,152,247,252,347,352,447,452], [46,53,146,153,246,253,346,353,446,453], [45,54,145,154,245,254,345,354,445,454], [44,55,144,155,244,255,344,355,444,455], [43,56,143,156,243,256,343,356,443,456], [42,57,142,157,242,257,342,357,442,457], [41,58,141,158,241,258,341,358,441,458], [40,59,140,159,240,259,340,359,440,459], [39,60,139,160,239,260,339,360,439,460], [38,61,138,161,238,261,338,361,438,461], [37,62,137,162,237,262,337,362,437,462], [36,63,136,163,236,263,336,363,436,463], [35,64,135,164,235,264,335,364,435,464], [34,65,134,165,234,265,334,365,434,465], [33,66,133,166,233,266,333,366,433,466], [32,67,132,167,232,267,332,367,432,467], [31,68,131,168,231,268,331,368,431,468], [30,69,130,169,230,269,330,369,430,469], [29,70,129,170,229,270,329,370,429,470], [28,71,128,171,228,271,328,371,428,471], [27,72,127,172,227,272,327,372,427,472], [26,73,126,173,226,273,326,373,426,473], [25,74,125,174,225,274,325,374,425,474], [24,75,124,175,224,275,324,375,424,475], [23,76,123,176,223,276,323,376,423,476], [22,77,122,177,222,277,322,377,422,477], [21,78,121,176,221,278,321,378,421,478], [20,79,120,179,220,279,320,379,420,479], [19,80,119,180,219,280,319,380,419,480], [18,81,118,181,218,281,318,381,418,481], [17,82,117,182,217,282,317,382,417,482], [16,83,116,183,216,283,316,383,416,483], [15,84,115,184,215,284,315,384,415,484], [14,85,114,185,214,285,314,385,414,485], [13,86,113,186,213,286,313,386,413,486], [12,87,112,187,212,287,312,387,412,487], [11,88,111,188,211,288,311,388,411,488], [10,89,110,189,210,289,310,389,410,489], [ 9,90,109,190,209,290,309,390,409,490], [ 8,91,108,191,208,291,308,391,408,491], [ 7,92,107,192,207,292,307,392,407,492], [ 6,93,106,193,206,293,306,393,406,493], [ 5,94,105,194,205,294,305,394,405,494], [ 4,95,104,195,204,295,304,395,404,495], [ 3,96,103,196,203,296,303,396,403,496], [ 2,97,102,197,202,297,302,397,402,497], [ 1,98,102,198,201,298,301,398,401,498], [ 0,99,100,199,200,299,300,399,400,499]]) #mymatrix.dtype=np.int16 print 'Press Ctrl-C to quit.' while True: # Rainbow animations currtime=datetime.datetime.now() #Leds are GRB in the colour registers print currtime.hour if((currtime.hour>=16) and (currtime.hour<23)): cyclecolumn(strip, Color(127,0,0)) sparkly(strip,Color(127,0,0),100,1000) cyclecolumn(strip,Color(0,127,0)) sparkly(strip,Color(0,127,0),100,1000) cyclecolumn(strip,Color(0,0,127)) sparkly(strip,Color(0,0,127),100,1000) cyclecolumn(strip,Color(127,127,127)) rainbowCycle(strip) else: for ctr in range(LED_COUNT-1): strip.setPixelColor(ctr,Color (0,0,0) ) strip.show()