main.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 # set up buttons
  11 cBtn=Pin(16,Pin.IN,Pin.PULL_UP)
  12 sBtn=Pin(17,Pin.IN,Pin.PULL_UP)
  13
  14 # Define the strand pin number and number of LEDs from variables
  15 strand = NeoPixel(Pin(GPIOnumber), LEDcount)
  16
  17 global mycolour
  18 mycolour=(78,0,45)
  19 pink=(253,58,73)
  20 # Turn off all LEDs before program start
  21 strand.fill((mycolour))
  22 strand.write()
  23 time.sleep(1)
  24
  25 def ledStrand():
  26     i=random.randint(0,LEDcount-1)
  27     strand[i]=(mycolour)
  28     strand.write()
  29     time.sleep(.09)
  30     strand[i]=(pink)
  31     strand.write()
  32     time.sleep(1.09)
  33
  34 def nColor():
  35     global mycolour
  36     mycolour=(random.randint(0,255),random.randint(0,255),random.randint(0,255))
  37     time.sleep(0.09)
  38
  39 def clearStrand():
  40     strand.fill((0,0,0))
  41     strand.write()
  42
  43 while True:
  44     ledStrand()
  45     if sBtn.value()==0:
  46         clearStrand()
  47         break
  48     if cBtn.value()==0:
  49         nColor()
  50
  51