Created
September 21, 2017 09:57
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| #turn on and off led according to transaction | |
| def blink_led(is_on): | |
| GPIO.setmode(GPIO.BCM) | |
| GPIO.setwarnings(False) | |
| GPIO.setup(18,GPIO.OUT) | |
| try: | |
| if is_on: | |
| GPIO.output(18,GPIO.HIGH) | |
| time.sleep(1) | |
| else: | |
| GPIO.output(18,GPIO.LOW) | |
| time.sleep(1) | |
| finally: | |
| GPIO.cleanup() |
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