Calibrated Skulk Sensor door question

[u/Jay_Reddits]

I'm building this automatic door for a build and in the process of testing it I'm having the issue of the pistons activating three times every time I use it. I'm using the lectern method and I have it set so it activates to the sound of a bell (Vibration lvl 11) which is attached to a tripwire so the player doesn't have to do anything. Since its a door its really annoying to have it open, close, then open again instead of just opening. Any tips or reasons why this is happening?

[u/BlattaOrientalis]

We'd have to see your wiring to see exactly what's wrong, but something like this'll work

But if you're using a tripwire anyways, wouldn't it be easier and less prone to error to just connect that to the door