Node-red rpi-gpio status not-availlable

'Dear people,
I am trying to activate my SRF05 sensor connected to the raspberry (pin 29 trigger and pin31 echo) in node red.
Below the flow. Get the message unavailable. Thank you for your advice.


Best Regards,


Hello @mwnbrgHass , it’s an old post indeed, but I’m facing the same problem just now.
I’m wondering if you were able to solve it somehow…
Thank you.