I’ve been trying to figure out how to automate my bathroom speakers based on water flow, and I’m thrilled to share my success! Here’s the story:
I have a smart water meter setup with a device that tracks the pulse rate of water flow. My goal was to automatically increase the volume of my bathroom speakers when the shower is running. The challenge was ensuring the automation didn’t trigger from brief uses like flushing the toilet.
After some research, I decided to use the water flow rate as the trigger. I set it to activate when the flow rate exceeds 50L/min for 25 seconds. This duration accounts for the toilet refill time, preventing false triggers. The automation also includes other conditions, like time of day and occupancy sensors, to ensure it’s only active when needed.
The setup involved creating a custom automation in Home Assistant. I used the pulse rate data from the water meter to calculate the flow rate and set up the conditions. It was a bit tricky, but with some trial and error, everything worked out!
Now, whenever I turn on the shower, the speakers automatically crank up the volume, creating the perfect ambiance for my morning routine. It’s such a small but incredibly convenient feature!
If anyone else is looking to do something similar, I’d be happy to share more details or tips. This project really showed how powerful smart home automation can be when it comes to enhancing daily routines. 
