Shelly Flood - integration with or w/o MQTT

Third party integrations
2

Create an MQTT binary sensor. Replace <deviceid> with your devicve id.

binary_sensor:
  - platform: mqtt
    name: Flood Sensor
    state_topic: "shellies/shellyflood-<deviceid>/sensor/flood"
    payload_on: "true"
    payload_off: "false"

Then add this to your customize.yaml:

binary_sensor.flood_sensor:
  icon: mdi:pipe-leak # or whatever icon you want for the flood sensor from here: https://materialdesignicons.com/

There are also two sensors available:

sensor:
  - platform: mqtt
    name: Battery Level
    state_topic: "shellies/shellyflood-<deviceid>/sensor/battery"
    value_template: {{ value }}
    unit_of_measurement: "%"
    icon: mdi:battery-70

  - platform: mqtt
    name: Temperature
    state_topic: "shellies/shellyflood-<deviceid>/sensor/temperature"
    value_template: {{ value }}
    unit_of_measurement: "°C" # or "°F" depending on your settings
    icon: mdi:thermometer

Untested. Info from here: https://shelly-api-docs.shelly.cloud/#shelly-flood