7-TrafficLights-solution.py 文件源码

def flashingambergreen():
    # Remember all code in the function is indented
    GPIO.output(PinRed, GPIO.LOW)

    iCount = 1
    while iCount <= 6:
        GPIO.output(PinAmber, GPIO.HIGH)
        # GPIO.output(PinGreenPedestrian, GPIO.HIGH)
        time.sleep(0.5)
        GPIO.output(PinAmber, GPIO.LOW)
        # GPIO.output(PinGreenPedestrian, GPIO.LOW)
        time.sleep(0.5)
        iCount += 1


# Flash the amber for one more second
# (Turn the green 'pedestrian' LED off and the red on)