rpi gpio

sudo apt-get install python3-rpi.gpio

verifying the installation

python import RPi.GPIO as GPIO

Display “RuntimeError: Not running on a RPi!” when run “GPIO.setup”.because it need authorization

cd /dev chmod og rwx gpio*

#!/user/bin/env python try: import RPi.GPIO as GPIO except RuntimeError: print(“error”) import time GPIO.setmode(GPIO.BOARD) GPIO.setwarnings(False) GPIO.setup(18,GPIO.OUT) GPIO.setup( 12 ,GPIO.IN) while True : time.sleep( 1 ) in_value = GPIO. input ( 12 ) print (in_value) time.sleep( 1 )