GPIO.setmode(GPIO.BOARD) # The input pin of the Sensor will be declared. Additional to that the pullup resistor will be activated. GPIO_PIN = 29 GPIO.setup(GPIO_PIN, GPIO.IN, pull_up_down=GPIO.PUD_UP) print("Sensor-Test [press ctrl+c to end it]") # This output function will be started at signal detection def outFunction(null): print("Signal detected") # At the moment of detecting a Signal ( falling signal edge ) the output function will be activated. GPIO.add_event_detect(GPIO_PIN, GPIO.FALLING, callback=outFunction) try: while True: sleep(1) except KeyboardInterrupt: # here you put any code you want to run before the program # exits when you press CTRL+C print("An error or exception occurred!") except: # this catches ALL other exceptions including errors. # You won't get any error messages for debugging # so only use it once your code is working print("Other error or exception occurred!")
def edge_detect(port, event_callback): """Add detection for RISING and FALLING events.""" _LOGGER.debug("Add callback for GPIO pin %i", port) GPIO.add_event_detect(port, GPIO.BOTH, callback=event_callback)