rpi gpio
时间：2023-12-08 14:37:01
1,install rpi.gpio
sudo apt-get install python3-rpi.gpio
verifying the installation
python
import RPi.GPIO as GPIO
2,permission setting
Display “RuntimeError: Not running on a RPi!” when run “GPIO.setup”.because it need authorization
cd /dev
chmod og rwx gpio*
3,example
#!/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 )
