IOT入門　その２　LED　OnOff

GPIO21　−−−　+LED-　−−−　200Ω前後　−−−　GND
LED　１秒点灯　１秒消灯

#!/usr/bin/python
# -*- coding: utf-8 -*-

import pigpio
import time
pi=pigpio.pi()
Pin21=21

def setup():
  pi.set_mode(Pin21, pigpio.OUTPUT)

def main():
 while True: 
   pi.write(Pin21, pigpio.HIGH)
   print('LED ON')
   time.sleep(1)
   pi.write(Pin21, pigpio.LOW)
   print('LED OFF')
   time.sleep(1)

def destroy():
  pi.write(Pin21, pigpio.LOW)
  pi.stop()

if __name__ == '__main__':
    setup()
    try:
        main()
    except KeyboardInterrupt:
        destroy()