This gets asked a lot so here is an example for automating a light to come on with movement and go off after there is no movement for a short time.
triggers:
- trigger: state
entity_id: binary_sensor.your_motion_sensor_here # change this
to: 'on'
- trigger: state
entity_id: binary_sensor.your_motion_sensor_here # change this
to: 'off'
for:
minutes: 2 # adjust as necessary
actions:
- action: "light.turn_{{ trigger.to_state.state }}"
target:
entity_id: light.your_light_here # change this