STJLOL-DMU Basic GPIO

light.py

#the setup
#Reminder: Do you have a resistor in series with your LED? If you don't you will kill the LED and damage the RPi.

import RPi.GPIO as GPIO   #lets you use GPIO
from time import sleep    #lets you use sleep(2) as a timer for the lights

GPIO.setmode(GPIO.BCM)  #tells the program what labeling system to use. We'll use BCM
                        #because that's what it used on your blue cobbler on your breadboard.
  
GPIO.setup(17, GPIO.OUT)  #tells the pi exactly what GPIO you'll be using


#the code

GPIO.output(17, GPIO.HIGH) #tells the pi to set GPIO-17's voltage to high +5V (ON)
sleep(2)                   #waits 2 seconds
GPIO.output(17, GPIO.LOW)  #tells the pi to set GPIO-17's voltage to low 0V (OFF)


#the cleanup

GPIO.cleanup()             #shuts down all GPIO stuff. Takes the keys out of the car so to speak.