Water Usage Home Assistant for cheap | Home Assistant | Page 1

lucid lotus Apr 28, 2023, 12:23 PM

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I created a PCB to track my water usage in home assistant. It is mounted to my water flow meter and uses a strobing led and 3 light sensors to track the position of the rotating needle on the meter that indicates the flow of water. The PCB can be powered by battery or USB and connects to wifi for home assistant Energy integration.
I would love to hear what people think about the concept and also if you would be interested to install such a device to track your water usage in home assistant. I am considering selling the PCB at a low price point if there is interest.

lucid lotus Apr 28, 2023, 6:39 PM

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BTW the sensor can measure between 0.16 - 0.33 L accurate:
https://martijnvwezel.com/blogs/watersensor/

Martijn

Muino Water Usage Home Assistant

The Muino water approach for water usage sensors aims to simplify installation by reducing complexity. Unlike traditional inductive sensors, the new design is smaller and easier to place, with a more intuitive interface.

tame quest Apr 28, 2023, 10:53 PM

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There’s a related project that uses esp32 and camera and ocr to read the meter numbers

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But probably less accurate for instanteous flow rate

lucid lotus Apr 28, 2023, 11:11 PM

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Yes, you are correct. I think thats overkill for this water meter.

#Water Usage Home Assistant for cheap