I recently purchased a Raspberry Pi 2 and I am trying to run a simple a simple Blink program but getting this error:

name error 'BCM' is not defined

This is my script

import RPi.GPIO as GPIO
import time

led = 7

while True:
  • 1
    Hello and welcome. Please be so kind to share your program/script you're running. (Note that you can always edit your own question to include that information, no need to go through comments.)
    – Ghanima
    Feb 19, 2016 at 7:33
  • sorry i paste code in comment Feb 19, 2016 at 7:36
  • i am new here !!! Feb 19, 2016 at 7:37
  • Not a problem, I edited the question for you. You are new to the site, we're here to help you along. Take the tour and visit the helpcenter to see how things work here.
    – Ghanima
    Feb 19, 2016 at 7:38

1 Answer 1


It's GPIO.BCM you want. Dot rather than comma.


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