Wednesday, September 10, 2014

Raspberry Pi Python exercise: Toggle LED on GPIO

Python example run on Raspberry Pi, to toggle GPIO pin for LED.

connection:

Example code, led.py:
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT)

while(True):
    GPIO.output(18, True)
    time.sleep(1.5)
    GPIO.output(18, False)
    time.sleep(0.5)


Run it with sudo:
$ sudo python led.py

Next:
Change GPIO LED brightness with GPIO.PWM

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