# Christmas tree and more # Simple test for NeoPixels on Raspberry Pi import time import board import neopixel # Choose an open pin connected to the Data In of the NeoPixel strip, i.e. board.D18 # NeoPixels must be connected to D10, D12, D18 or D21 to work. pixel_pin = board.D18 # The number of NeoPixels num_pixels = 99 # The order of the pixel colors - RGB or GRB. Some NeoPixels have red and green reversed! # For RGBW NeoPixels, simply change the ORDER to RGBW or GRBW. ORDER = neopixel.RGB pixels = neopixel.NeoPixel( pixel_pin, num_pixels, brightness=0.2, auto_write=False, pixel_order=ORDER ) myMatrix=[88,89,90,91,92,93,94,95,96,97,98, 87,86,85,84,83,82,81,80,79,78,77, 66,67,68,69,70,71,72,73,74,75,76, 65,64,63,62,61,60,59,58,57,56,55, 44,45,46,47,48,49,50,51,52,53,54, 43,42,41,40,39,38,37,36,35,34,33, 22,23,24,25,26,27,28,29,30,31,32, 21,20,19,18,17,16,15,14,13,12,11, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10] def wheel(pos): # Input a value 0 to 255 to get a color value. # The colours are a transition r - g - b - back to r. if pos < 0 or pos > 255: r = g = b = 0 elif pos < 85: r = int(pos * 3) g = int(255 - pos * 3) b = 0 elif pos < 170: pos -= 85 r = int(255 - pos * 3) g = 0 b = int(pos * 3) else: pos -= 170 r = 0 g = int(pos * 3) b = int(255 - pos * 3) return (r, g, b) if ORDER in (neopixel.RGB, neopixel.GRB) else (r, g, b, 0) def rainbow_cycle(wait): for j in range(255): for i in range(num_pixels): pixel_index = (i * 256 // num_pixels) + j pixels[i] = wheel(pixel_index & 255) pixels.show() time.sleep(wait) try: while True: # pixels.fill((255, 0, 0)) # pixels.show() # time.sleep(1) # # pixels.fill((0, 255, 0)) # pixels.show() # time.sleep(1) # # pixels.fill((0, 0, 255)) # pixels.show() # time.sleep(1) pixels.fill((0,0,0)) #H red pixels[myMatrix[0]] = (255,0,0) pixels[myMatrix[11]] = (255,0,0) pixels[myMatrix[22]] = (255,0,0) pixels[myMatrix[33]] = (255,0,0) pixels[myMatrix[34]] = (255,0,0) pixels[myMatrix[35]] = (255,0,0) pixels[myMatrix[44]] = (255,0,0) pixels[myMatrix[55]] = (255,0,0) pixels[myMatrix[66]] = (255,0,0) pixels[myMatrix[3]] = (255,0,0) pixels[myMatrix[14]] = (255,0,0) pixels[myMatrix[25]] = (255,0,0) pixels[myMatrix[36]] = (255,0,0) pixels[myMatrix[47]] = (255,0,0) pixels[myMatrix[58]] = (255,0,0) pixels[myMatrix[69]] = (255,0,0) #O pixels[myMatrix[6]] = (255,0,0) pixels[myMatrix[16]] = (255,0,0) pixels[myMatrix[27]] = (255,0,0) pixels[myMatrix[38]] = (255,0,0) pixels[myMatrix[49]] = (255,0,0) pixels[myMatrix[60]] = (255,0,0) pixels[myMatrix[72]] = (255,0,0) pixels[myMatrix[7]] = (255,0,0) pixels[myMatrix[19]] = (255,0,0) pixels[myMatrix[30]] = (255,0,0) pixels[myMatrix[41]] = (255,0,0) pixels[myMatrix[52]] = (255,0,0) pixels[myMatrix[63]] = (255,0,0) pixels[myMatrix[73]] = (255,0,0) pixels.show() time.sleep(2) #H green pixels.fill((0,0,0)) pixels[myMatrix[12]] = (0,255,0) pixels[myMatrix[23]] = (0,255,0) pixels[myMatrix[34]] = (0,255,0) pixels[myMatrix[45]] = (0,255,0) pixels[myMatrix[46]] = (0,255,0) pixels[myMatrix[47]] = (0,255,0) pixels[myMatrix[56]] = (0,255,0) pixels[myMatrix[67]] = (0,255,0) pixels[myMatrix[78]] = (0,255,0) pixels[myMatrix[15]] = (0,255,0) pixels[myMatrix[26]] = (0,255,0) pixels[myMatrix[37]] = (0,255,0) pixels[myMatrix[48]] = (0,255,0) pixels[myMatrix[59]] = (0,255,0) pixels[myMatrix[70]] = (0,255,0) pixels[myMatrix[81]] = (0,255,0) #O pixels[myMatrix[18]] = (0,255,0) pixels[myMatrix[19]] = (0,255,0) pixels[myMatrix[28]] = (0,255,0) pixels[myMatrix[39]] = (0,255,0) pixels[myMatrix[50]] = (0,255,0) pixels[myMatrix[61]] = (0,255,0) pixels[myMatrix[72]] = (0,255,0) pixels[myMatrix[84]] = (0,255,0) pixels[myMatrix[31]] = (0,255,0) pixels[myMatrix[42]] = (0,255,0) pixels[myMatrix[53]] = (0,255,0) pixels[myMatrix[64]] = (0,255,0) pixels[myMatrix[75]] = (0,255,0) pixels[myMatrix[85]] = (0,255,0) pixels.show() time.sleep(2) #H pixels.fill((0,0,0)) pixels[myMatrix[24]] = (0,0,255) pixels[myMatrix[35]] = (0,0,255) pixels[myMatrix[46]] = (0,0,255) pixels[myMatrix[57]] = (0,0,255) pixels[myMatrix[58]] = (0,0,255) pixels[myMatrix[59]] = (0,0,255) pixels[myMatrix[68]] = (0,0,255) pixels[myMatrix[79]] = (0,0,255) pixels[myMatrix[90]] = (0,0,255) pixels[myMatrix[27]] = (0,0,255) pixels[myMatrix[38]] = (0,0,255) pixels[myMatrix[49]] = (0,0,255) pixels[myMatrix[60]] = (0,0,255) pixels[myMatrix[71]] = (0,0,255) pixels[myMatrix[82]] = (0,0,255) pixels[myMatrix[93]] = (0,0,255) #O pixels[myMatrix[30]] = (0,0,255) pixels[myMatrix[31]] = (0,0,255) pixels[myMatrix[40]] = (0,0,255) pixels[myMatrix[51]] = (0,0,255) pixels[myMatrix[62]] = (0,0,255) pixels[myMatrix[73]] = (0,0,255) pixels[myMatrix[84]] = (0,0,255) pixels[myMatrix[96]] = (0,0,255) pixels[myMatrix[43]] = (0,0,255) pixels[myMatrix[54]] = (0,0,255) pixels[myMatrix[65]] = (0,0,255) pixels[myMatrix[76]] = (0,0,255) pixels[myMatrix[87]] = (0,0,255) pixels[myMatrix[97]] = (0,0,255) pixels.show() time.sleep(2) rainbow_cycle(0.001) # rainbow cycle with 1ms delay per step # show tree pixels.fill((0, 0, 0)) pixels[myMatrix[5]] = (0, 255, 0) pixels.show() time.sleep(1) for i in range(15,18): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(26,29): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(36,41): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(47,52): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(57,64): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(68,75): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(78,87): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) for i in range(88,99): pixels[myMatrix[i]] = (0,255,0) pixels.show() time.sleep(1) pixels[myMatrix[5]] = (255, 255, 255) pixels.show() time.sleep(1) # snow pixels[myMatrix[2]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[12]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[24]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[9]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[19]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[42]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[44]] = (128,128,128) pixels.show() time.sleep(1) pixels[myMatrix[65]] = (128,128,128) pixels.show() time.sleep(1) time.sleep(5) finally: pixels.fill((0,0,0))