ledStranRAND.py

   1 # Imports
   2 from machine import Pin
   3 from neopixel import NeoPixel
   4 import time, random
   5
   6 # LED details
   7 GPIOnumber = 28
   8 LEDcount = 15
   9
  10 # Define the strand pin number and number of LEDs from variables
  11 strand = NeoPixel(Pin(GPIOnumber), LEDcount)
  12
  13 # Turn off all LEDs before program start
  14 strand.fill((0,0,0))
  15 strand.write()
  16 time.sleep(1)
  17
  18 while True:
  19     mycolour = random.randint(0,256),random.randint(0,256),random.randint(0,256)
  20
  21     for i in range(LEDcount):
  22
  23         strand[i] = (mycolour)
  24         strand.write()
  25
  26         # Show the light for this long
  27         time.sleep(.09)
  28
  29         #Clear the strand at the end of each loop
  30         strand.fill((0,0,0))
  31         strand.write()
  32
  33     for i in reversed (range(LEDcount)):
  34         strand[i] =(mycolour)
  35         strand.write()
  36
  37         # Show the light for this long
  38         time.sleep(.09)
  39
  40         #Clear the strand at the end of each loop
  41         strand.fill((0,0,0))
  42         strand.write()