Traffic Light Project

Traffic.py

# Import libraries
import time
import RPi.GPIO as GPIO
# Setup GPIO pins
GPIO.setmode(GPIO.BOARD)
GPIO.setup(3,GPIO.OUT)
GPIO.setup(5,GPIO.OUT)
GPIO.setup(7,GPIO.OUT)
#Switch off all the LEDs
GPIO.output(3,GPIO.LOW)
GPIO.output(5,GPIO.LOW)
GPIO.output(7,GPIO.LOW)
#Switch on the LEDs
GPIO.output(3,GPIO.HIGH)
time.sleep(1)
GPIO.output(5,GPIO.HIGH)
time.sleep(1)
GPIO.output(7,GPIO.HIGH)
#End the code cleanly
GPIO.cleanup()