And it shows. The water level in my well is finally raising again. It has been 2cm* at the lowest point
* There is a ‘safety’ margin there. I did not set it exactly at zero so I always have a little more than is shown.
And it shows. The water level in my well is finally raising again. It has been 2cm* at the lowest point
* There is a ‘safety’ margin there. I did not set it exactly at zero so I always have a little more than is shown.
The best (but also priciest) is a throw-in IP67 water pressure sensor. It sinks to the bottom and you can do a bit of math to decode water level from pressure level.
https://www.tinytronics.nl/en/sensors/liquid/dfrobot-gravity-throw-in-type-liquid-level-transmitter (this one is only 5m cable length). Then just attach it to an AD1115 and an ESP32-C3 or C6 via a 12-36V supply (Like so) and voila a esphome WiFi/thread water level sensor (put it in a watertight box though). There are also ready made ones but more expensive.
It doesn’t have the usual problems from wireless sonar and lidar methods. TDR wired sensors are overkill and should only really be used for chemicals.
briefly thought of that, but I hate throwing something in my well
Could you attach it to a fishing line or something so it’s retrievable? 😁