canbus: presence layer + departure failsafes
Water heater = occupancy truth. New Pi package campsite_presence.yaml: rv_occupied + phones_on_campsite_wifi template sensors (wifi one stays unavailable until the MikroTik integration lands — load-bearing for the dead-man trigger), MQTT bridging home, a local notify-only dead-man (heater on, no phones on WiFi 3h), and disabled pre-staged lot-light automations for the future shed Shelly. dsi_fault_alert.yaml gains the Octavia MQTT relay (campsite/octavia/say) so home HA — which has no file access — can speak through the verified webhook path. Home-side (UI-managed, not in repo): quick failsafe (both out of the enlarged 150m campsite zone 25 min → fans/lights off + summary ping) and heater failsafe (2h → heater off with bridge round-trip confirmation). Both verified live; fan states snapshot-restored after the test. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Claude Fable 5
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# Campsite presence / occupancy package.
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#
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# Occupancy truth: the gas water heater — always on while camping, always
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# turned off when leaving (propane). WiFi presence (MikroTik Chateau
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# device_trackers) is the second, internet-independent signal; until that
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# integration is set up the wifi sensor reads `unavailable` and everything
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# downstream treats it as "no veto" (failsafes key on GPS, dead-man stays
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# quiet).
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#
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# Deploy to Pi: /config/packages/campsite_presence.yaml
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# Repo copy: canbus/ha/campsite_presence.yaml
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#
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# ⚠️ FIRST DEPLOY: `template:` may be a new domain on this instance — full
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# core restart, then confirm the sensors exist (see dsi_fault_alert.yaml for
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# the reload_all trap).
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template:
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- binary_sensor:
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- name: "RV Occupied"
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unique_id: campsite_rv_occupied
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device_class: occupancy
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icon: mdi:campfire
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# unavailable/unknown heater (node down) -> sensor unavailable, not a
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# false "left": availability gates it.
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availability: >-
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{{ states('switch.onecontrol_can_water_heater')
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not in ['unavailable', 'unknown'] }}
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state: "{{ is_state('switch.onecontrol_can_water_heater', 'on') }}"
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- name: "Phones On Campsite WiFi"
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unique_id: campsite_phones_on_wifi
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device_class: presence
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icon: mdi:wifi-marker
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# MikroTik trackers (renamed to these ids after the integration is
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# added). While they don't exist the sensor is unavailable — that is
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# load-bearing: the dead-man automation below triggers on a sustained
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# 'off', which unavailable never satisfies.
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availability: >-
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{{ states('device_tracker.wes_phone_wifi')
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not in ['unavailable', 'unknown']
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or states('device_tracker.lindsey_iphone_wifi')
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not in ['unavailable', 'unknown'] }}
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state: >-
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{{ is_state('device_tracker.wes_phone_wifi', 'home')
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or is_state('device_tracker.lindsey_iphone_wifi', 'home') }}
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automation:
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# --- Bridge both presence sensors home (discovery + state) -------------
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- id: campsite_presence_mqtt_discovery
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alias: "Presence: Publish MQTT Discovery"
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triggers:
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- trigger: homeassistant
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event: start
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- trigger: event
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event_type: automation_reloaded
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- trigger: time_pattern
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hours: "/6"
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actions:
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- delay: "00:00:07"
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- action: mqtt.publish
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data:
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topic: "homeassistant/binary_sensor/campsite/rv_occupied/config"
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retain: true
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payload: >-
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{"name": "RV Occupied",
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"unique_id": "campsite_rv_occupied",
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"state_topic": "campsite/binary_sensor/rv_occupied/state",
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"payload_on": "ON", "payload_off": "OFF",
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"device_class": "occupancy",
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"availability_topic": "campsite/onecontrol/availability",
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"device": {"identifiers": ["campsite_onecontrol"]}}
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- action: mqtt.publish
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data:
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topic: "homeassistant/binary_sensor/campsite/phones_on_campsite_wifi/config"
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retain: true
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payload: >-
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{"name": "Phones On Campsite WiFi",
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"unique_id": "campsite_phones_on_wifi",
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"state_topic": "campsite/binary_sensor/phones_on_campsite_wifi/state",
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"payload_on": "ON", "payload_off": "OFF",
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"payload_available": "online", "payload_not_available": "offline",
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"availability_topic": "campsite/presence/wifi_availability",
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"device_class": "presence",
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"device": {"identifiers": ["campsite_onecontrol"]}}
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- delay: "00:00:02"
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- action: mqtt.publish
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data:
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topic: "campsite/binary_sensor/rv_occupied/state"
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retain: true
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payload: "{{ 'ON' if is_state('binary_sensor.rv_occupied', 'on') else 'OFF' }}"
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- action: mqtt.publish
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data:
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topic: "campsite/presence/wifi_availability"
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retain: true
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payload: >-
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{{ 'offline' if states('binary_sensor.phones_on_campsite_wifi')
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in ['unavailable', 'unknown'] else 'online' }}
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- action: mqtt.publish
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data:
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topic: "campsite/binary_sensor/phones_on_campsite_wifi/state"
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retain: true
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payload: "{{ 'ON' if is_state('binary_sensor.phones_on_campsite_wifi', 'on') else 'OFF' }}"
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- id: campsite_presence_forward_states
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alias: "Presence: Forward States"
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triggers:
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- trigger: state
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entity_id:
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- binary_sensor.rv_occupied
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- binary_sensor.phones_on_campsite_wifi
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actions:
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- action: mqtt.publish
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data:
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topic: "campsite/binary_sensor/{{ trigger.to_state.object_id }}/state"
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retain: true
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payload: "{{ 'ON' if trigger.to_state.state == 'on' else 'OFF' }}"
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- if:
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- condition: template
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value_template: "{{ trigger.to_state.object_id == 'phones_on_campsite_wifi' }}"
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then:
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- action: mqtt.publish
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data:
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topic: "campsite/presence/wifi_availability"
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retain: true
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payload: >-
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{{ 'offline' if trigger.to_state.state
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in ['unavailable', 'unknown'] else 'online' }}
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# --- Local dead-man notify (works with the WG tunnel down) -------------
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# Heater on but neither phone seen on campsite WiFi for 3 h. Notify-only:
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# WiFi absence alone is not proof of departure (pool afternoon, dead
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# battery), so the auto-off lives home-side where GPS can confirm.
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- id: campsite_deadman_heater_notify
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alias: "Presence: Dead-man heater notify (local)"
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triggers:
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- trigger: state
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entity_id: binary_sensor.phones_on_campsite_wifi
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to: "off"
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for: "03:00:00"
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conditions:
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- condition: state
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entity_id: binary_sensor.rv_occupied
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state: "on"
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actions:
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- action: rest_command.discord_server_alerts
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data:
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message: >-
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<@321798967669030912> 🤨 The water heater has been on for 3+ hours
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with neither of your phones on the campsite WiFi. If you actually
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left, you forgot the shutdown ritual again — kill the heater from
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the dashboard. If you're at the pool, carry on.
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mode: single
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# --- Lot lights (Shelly) — PRE-STAGED, DISABLED until the relay exists --
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# Enable + fix the entity id once the Shelly is installed in the shed
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# outlet box. Mirrors the camper exterior-lights sunset/sunrise pattern
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# (retry because nothing should be trusted fire-and-forget), gated on
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# occupancy so the lot doesn't light up for an empty site.
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- id: campsite_lot_lights_sunset
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alias: "Lot lights on at sunset (occupied only)"
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initial_state: false
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triggers:
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- trigger: sun
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event: sunset
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offset: 0
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conditions:
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- condition: state
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entity_id: binary_sensor.rv_occupied
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state: "on"
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actions:
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- repeat:
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sequence:
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- action: switch.turn_on
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target:
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entity_id: switch.lot_lights
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- delay: "00:00:05"
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until:
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- condition: template
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value_template: >-
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{{ is_state('switch.lot_lights', 'on') or repeat.index >= 3 }}
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mode: single
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- id: campsite_lot_lights_sunrise
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alias: "Lot lights off at sunrise"
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initial_state: false
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triggers:
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- trigger: sun
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event: sunrise
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offset: 0
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actions:
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- repeat:
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sequence:
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- action: switch.turn_off
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target:
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entity_id: switch.lot_lights
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- delay: "00:00:05"
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until:
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- condition: template
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value_template: >-
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{{ is_state('switch.lot_lights', 'off') or repeat.index >= 3 }}
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mode: single
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