homeassistant-config/sensors.yaml

# Raspberry Pi CPU temp
  - platform: command_line
    name: "CPU Temp"
    command: "cat /sys/class/thermal/thermal_zone0/temp"
    unit_of_measurement: "°C"
    value_template: "{{ value | multiply(0.001) | round(1) }}"
# Moon Phases
  - platform: moon
# DWD weather warnings
  - platform: dwd_weather_warnings
    name: "DWD Unwetterwarnungen"
    region_name: "Münster-Süd"
# Database size sensor
  - platform: sql
    db_url: !secret ha_recorder_dburl
    queries:
      - name: "Home Assistant Datenbankgröße"
        query: 'SELECT table_schema "database", Round(Sum(data_length + index_length) / 1048576, 2) "value" FROM information_schema.tables WHERE table_schema="homeassistant" GROUP BY table_schema;'
        column: 'value'
        unit_of_measurement: MB