I try to use monster card to display the battery level. But it just show me the state of the door sensor only.
My code is:
- type: custom:monster-card
show_empty: false
card:
type: glance
title: Batteries
filter:
include:
- entity_id: binary_sensor.door_window_sensor_158d0002e2e117
attributes:
battery_level: "< 100"
Could someone show me something wrong here?
Thanks so much for reading.