I remixed our Sunday tutorial code to provide a notification when the laundry machine stopped running. To do so, I used an IFTTT applet to send me a push notification whenever the sound crossed a certain threshold. I started with SMS but switched to IFTTT push notifications because I didn't want to go over my SMS limit. 

I added a switch and status light so I could know when it was publishing events and turn it off while I debugged. 

I also added a "notification" LED that would light whenever the event published. This was mainly helpful when I was debugging and trying to calibrate the sound sensitivity.