Flash an Led using Python

In the following example we will connect an LED and resistor to pin 7 of P1 on our Raspberry PI and we will flash an LED on, here is a picture of this

pi and led

OK we will use python, this tutorial assumes you already have Raspbian , Python and the GPIO library installed. I downloaded the latest NOOBS image and this all appeared to be installed by default

Open the terminal and type in the following

Source code

sudo idle

You should see something like this

sudoidle

Wait for IDLE to open,  then click File > New to open a new window. Or you can use CTRL + N, you can see this below.

idle window

Now type in the following code

Source code

import RPi.GPIO as GPIO ## Import GPIO library
 
GPIO.setwarnings(False)
GPIO.setmode(GPIO.BOARD) ## Use board pin numbering
GPIO.setup(7, GPIO.OUT) ## Setup GPIO Pin 7 to OUT
GPIO.output(7,True) ## Turn on GPIO pin 7

Click File > Save when you are finished (Ctrl + S).

To run your program, click Run > Run (Ctrl + F5), your LED should light