#!/usr/bin/env python3
import time
import RPi.GPIO as GPIO
GPIO.setmode( GPIO.BCM )
ENABLE = 1; DISABLE = 0
RED = 23; GREEN = 24; BLUE = 25
RGB = [ RED, GREEN, BLUE ]
RGB2 = RGB[::-1]
for led in RGB:
GPIO.setup( led, GPIO.OUT )
def race( leds, start, factor, times, forward=True ):
t = start
for x in range( 0, times ):
for led in leds:
GPIO.output( led, ENABLE )
time.sleep( t )
GPIO.output( led, DISABLE )
if forward: t /= factor
else: t *= factor
def main():
for x in range( 0, 10 ):
race( RGB, 0.37, 1.06, 400 )
race( RGB2, 0.00000023, 1.035, 400, False )
main()
try:
GPIO.cleanup()
finally:
pass
