Stone Espresso water tank level sensor

A project to add a water level sensor to my "Stone Espresso" espresso maker. The HC-SR04 ultrasonic sensor is connected to an ESP8266 running ESPHome, which is connected to Home Assistant.

The ESP also has an LED strip connected, to flash orange or red depending on the water level. ESPHome YAML is attached.

Dupont wires can be routed on the inside of the espresso machine.

If you're using the STL file make sure to split the model in you slicer before printing.

Link to my enclosure: https://www.printables.com/model/1171087-esp8266nodemcu-enclosure-with-jst-barrel-and-dupon