Use Xiaomi temperature/pressure sensor as water tank level sensor

[Mahko_Mahko]

Interesting. But there are some other good threads on the ultrasonic (and float switch) approaches.

Water Tank Level and Water Volume with ESPHome

Hello every one Sooo Finally I’ve got time to figure this one out. [image] Not really that hard but never find a really clear and direct solution for it it was only a matter of find the right equation. Main goal of this is to track the water tank level in my house as some times the water is being cut off and the water pump auto stopes working and it had to restarted. this way I can setup an Automation when the water level drops less then 50% the pump will be switched off for 10 seconds and …

How check level in water tank

Hi! Living in Cyprus we have a water tank on the roof as in many other warm countries. Sometimes we get water cuts för different reasons and I want to find a way to measure the level in the tank and find a way to trigger an alarm in HA if the level go under a set value. I have experienced that we did not notice a cut until the tank was empty and its not fun to not have water.

ESPHome water level sensor

I have the following sensor (https://www.hobbytronics.co.za/p/1119/waterproof-ultrasonic-distance-transducer) connected to a ESP32 board running ESPHome. I am getting values successfully as well by setting up my sensor with the following code (https://esphome.io/components/sensor/ultrasonic.html) from the ESP website. It is currently displaying distance in meters (0.22m for 22cm away). I would like to use this sensor to measure the water level of a water tank and return the values for 0-100 (sc…