Sound Level Warning Device: Suggested shopping list

So I hate it when people ask to be spoon-fed, and I really wanted to figure out the coding necessary for this project, but with the Thanksgiving “break” I had, there was zero time to learn anything.

Honestly, after trying to figure out what I’m doing with this, I am overwhelmed. I’ve been googling “arduino sound level sensing” in various forms but no one is using the breakout I am and while I am knowledgeable in many realms, coding and electronics are my Achilles heel.

The deadline for this project is fast approaching, (like, REAL fast) can someone point me in the right direction or would anyone mind taking a crack at the coding?