Post #3280286
2026-06-01 10:41 UTC
Wife noticed the #cat 's #water #fountain upstairs was empty again this morning. It's not the first time, and this must be fixed, so I'm trying to sketch up a quick&dirty water #level #sensor to monitor with #homeassistant ...
The idea is to print it (in #petg for water resistance), place a #cherrymx #switch in the upper compartment and sink it in hot glue to avoid water messing with the switch. Then I'll connect it to _something_ (probably an #ESP32 or #ESP8266 with #ESPHome) and configure Home Assistant to issue a notification to my wife's phone when the switch is released (= the water level is too low).
Replies (1)
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@penguin86@social.ichibi.eu 2026-06-01 10:44
It's made by two parts: the right one floats in the water and can move inside the left one. It should push on the switch stem when the water level is high, and release it when it's too low.