ledTWINKLE.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 # Turn off all LEDs before program start
  20 strand.fill((mycolour))
  21 strand.write()
  22 time.sleep(1)
  23
  24 def ledStrand():
  25     i=random.randint(0,LEDcount-1)
  26     strand[i]=(0,0,0)
  27     strand.write()
  28     time.sleep(0.09)
  29     strand[i]=(mycolour)
  30     strand.write()
  31     time.sleep(0.09)
  32
  33 def nColor():
  34     global mycolour
  35     mycolour=(random.randint(0,255),random.randint(0,255),random.randint(0,255))
  36     time.sleep(0.09)
  37
  38 def clearStrand():
  39     strand.fill((0,0,0))
  40     strand.write()
  41
  42 while True:
  43     ledStrand()
  44     if sBtn.value()==0:
  45         clearStrand()
  46         break
  47     if cBtn.value()==0:
  48         nColor()