Hello guys, thanks for your time. Regarding your questions. Yes it works exactlly like it should. My piezo reads the knocks just fine and does what it suppose to do. When i started a few weeks back I added a second secret knock and i duplicated everything in the script (i added a "1" in the end of each variable or int. For example; secrerknock and secretknock1, listentosecretknock and listentosecretknock1) the problem i had was that when the script started to read, some times it would look for secretknock and sometimes for secretknock1 but it would never listen for both at the same time. So it was pointless. I dont know if it makes any sense what i just wrote. I will try to recreate the script and upload a video. Thanks!