ledScanner.py

   1 from machine import Pin
   2 import time
   3
   4 # Set up LED pins
   5 seg1 = Pin(13, Pin.OUT)
   6 seg2 = Pin(12, Pin.OUT)
   7 seg3 = Pin(11, Pin.OUT)
   8 seg4 = Pin(10, Pin.OUT)
   9 seg5 = Pin(9, Pin.OUT)
  10
  11 # Create a list of our LEDs
  12 segments = [seg1, seg2, seg3, seg4, seg5]
  13
  14 while True:
  15
  16     # For loop to turn each LED on then off in order of the list
  17     for led in segments:
  18
  19         led.value(1)
  20         time.sleep(0.08)
  21         led.value(0)
  22
  23     # For loop in reverse, running backwards through the list
  24     for led in reversed (segments):
  25
  26         led.value(1)
  27         time.sleep(0.08)
  28         led.value(0)