This project contains an example of an LTE connected noise level sensor. The used sensor module is from PCB Artists and all info can be found on the website: https://pcbartists.com/product-documentation/decibel-meter-module-interfacing-guide/
The sketch uploads the A-weighted (dbA) sound pressure level and the minimum and maximum values every minute. The minimum and maximum is reset after every transmission. The data is uploaded to https://walterdemo.quickspot.io
