I've decided to start a project to help neighbors of existing data centers and proposed data centers to monitor noise using <$300 field units. I haven't built it yet, but I have done two other monitor projects with success, so I do not anticipate this will be any different... just a different set of variables and sensors. Here's a page introducing the HDC Sound Monitor Project. (Just this page for now.) https://salemdata.net/HDC/HDC_Sound_Monitor.html #DataCenters #DIY #Noise #Environment #ESP32