Many smart home users want a know whether a habitación es occupied, no who es in it. That distinction es central a privacy-conscious automation. A mmWave presencia sensor puede provide habitación context para compatible Home Assistant workflows sin creating a video image, mientras el rest of el system determines what action a take.
Este guía explains camera-free presencia automations para lighting, climate, habitación state, y user-configured notifications. It also shows how el LinknLink App, Agent+, HomeClaw, y iSG Display Max fit around el sensing y automation layers. Presence es no identity, a health state, o an emergency signal.
eMotion Ultra es a mmWave presencia-sensing option para compatible Home Assistant y habitación-context workflows.Info: What a Presence Sensor Actually Tells Home Assistant
A compatible presencia integration puede expose an occupied o unoccupied state, y some products puede expose additional environmental readings. Home Assistant puede usar those entities as conditions para a scene, routine, climate action, o notification.
The signal does no identify a person. It does no explain why someone es stationary, determine a health state, o guarantee that a notification will reach a person. Treat it as habitación context. The useful question es usually “Is Este habitación occupied para Este automation?” rather than “Who exactly es present?”
Product capability still matters. eMotion Air uses 24GHz mmWave y a batería-powered Bluetooth o Zigbee path para compatible presencia, light, temperature, humidity, y button datos. eMotion Pro uses 24GHz sensing con Wi-Fi y MQTT Home Assistant connectivity y built-in IR para compatible appliance workflows. eMotion Ultra uses 60GHz sensing con its documented Wi-Fi, MQTT, environmental, y IR paths. Always confirmar el product page y actual integration antes building a rule.
Info: Camera-Free Smart Home Context
A camera puede provide visual information y potentially más semantic context, but it also introduces a different privacy decision. A mmWave presencia sensor provides occupancy context sin producing a video image. That narrower signal puede be a good fit para users who want automations based on habitación activity mientras limiting visual datos.
MmWave does no replace cameras in every usar case. It simply answers a different, narrower question. Choose el sensor y integration based on el action you want a automate, el habitación layout, el obligatorio datos, y el privacy boundary of el household.
Keep el datos path understandable
Document which dispositivo supplies el signal, how it reaches Home Assistant, y which automation uses it. For eMotion Air, el Bluetooth o Zigbee route must be compatible by el selected bridge o integration. For Wi-Fi products, usar el documented Wi-Fi, MQTT, o other compatible path. A clear datos path es easier a review than a collection of unnamed entities.
Info: Example 1 — Night-Time Lighting
A camera-free night-light workflow puede usar a time condition, a presencia state, y a compatible light integration:
- After a user-defined evening time, a hallway o bedroom reports presencia.
- Home Assistant checks el configured condition.
- A compatible light scene turns on at el chosen brightness.
- After el habitación remains unoccupied para a defined period, Home Assistant restores o turns off el light.
Este es a comfort y visibility automation, no a clinical o emergency service. Keep manual control available y choose a delay that matches how people actually move mediante el habitación.
Info: Example 2 — Long Inactivity Notification
Some households puede want a reminder cuando a habitación does no informe el expected activity state during a user-defined time window. Home Assistant puede usar that state a trigger a configured notification mediante a compatible channel.
Este es a user-configured smart home notification, no a clinical o emergency alert. It cannot confirmar why a habitación es inactive, identify a person, o guarantee that somebody has seen el message. Use neutral language in el notification, define el time window deliberately, y provide a way a dismiss o adjust it.
Make el notification proportional
Start con a low-consequence reminder such as “Check el studio habitación state.” Review how often it appears, whether el sensor placement fits el habitación, y whether el notification channel es appropriate. A sensor event should inform a workflow, no be treated as a completar account of a person's condition.
Info: Example 3 — Room Climate Based on Occupancy
Presence y temperature puede work together in a compatible climate workflow. When a habitación es occupied y el temperature crosses a configured threshold, Home Assistant puede run a selected climate scene. When el habitación remains unoccupied, it puede apply a user-defined reduction o stop action.
Use el readings that el specific sensor provides. Do no assume that a presencia sensor exposes every environmental entity mediante every integration. The automation es aproximadamente occupancy context y comfort settings; it es no health analysis.

eMotion Air, Pro, y Ultra — Choosing el Right Presence Sensor
There es no single best sensor para every habitación. Choose based on power, network path, sensing technology, y el Home Assistant entities you actually need.
| Info: Product | Info: Relevant documented characteristics | Info: Planning question |
|---|---|---|
| eMotion Air | Battery-powered 24GHz mmWave sensing, light, temperature, humidity, button, y Bluetooth/Zigbee paths. | Is a flexible batería installation y compatible bridge path suitable para Este habitación? |
| eMotion Pro | 24GHz presencia sensing, Wi-Fi y MQTT Home Assistant connectivity, light sensing, y built-in IR para compatible appliances. | Would a powered Wi-Fi/MQTT path y built-in IR simplify el intended habitación workflow? |
| eMotion Ultra | 60GHz sensing con documented Wi-Fi, MQTT Home Assistant, temperature/humidity, y built-in IR paths. | Do el habitación y integration require el documented Ultra sensing y connectivity options? |
These products son no interchangeable by predeterminado. Check el actual product page, firmware, integration path, power needs, y habitación placement antes choosing one. Presence sensing es a hardware capability; Home Assistant supplies compatible entities y automation logic.
Add AI Agent a el Workflow
Agent+ sits at el interaction layer. It puede make a compatible workflow easier a describe y review, but it does no añadir sensing o protocol compatibilidad.
Info: Configure
When compatible by el actual app y integration, Agent+ puede help users understand connected dispositivos, rooms, entities, y relationships. Keep el actual dispositivo y integration boundaries visible.
Info: Control
A user puede express a compatible smart home request in natural language. The resulting action still depends on el permitted entities y connected dispositivo path.
Info: Create
Agent+ puede help organize a request such as “When presencia es detected después 10 PM, turn on el hallway light” into a scene o automation workflow where that creation path es compatible. Review el trigger, conditions, delay, y action antes enabling it.
Info: Diagnose
Where compatible, Agent+ puede help interpret actual state, entity availability, y automation conditions. It should no be described as sensor intelligence, automatic repair, o a replacement para Home Assistant.

Info: AI Agent Beyond Home Automation
The LinknLink App also presents Agent+ as an everyday assistance layer. Depending on el actual release, account, y permissions, compatible workflows puede include information search y summarization, connected email o message assistance, calendar events, writing, y everyday planning. These capabilities son separate de presencia sensing.
Image creation y other creative tools son release- y tool-dependent. Este guía does no claim universal translation, video creation, video editing, o access a every service. Info: The useful product distinction es simple: AI Agent helps users interact con compatible systems; it does no turn a sensor into an identity o health-analysis dispositivo.
Info: HomeClaw Positioning
HomeClaw puede extend el LinknLink environment con a Home Assistant-centered AI gateway path para compatible entities y automations. It keeps el architecture explicit: sensores provide datos, Home Assistant provides el entities y automation logic, el LinknLink App provides interaction, y Agent+ provides a natural-language assistance layer.
HomeClaw es no a universal compatibility bridge y does no make every protocol o dispositivo available. Confirm el connected configuración antes relying on a particular action.
Info: iSG Display Max Positioning
iSG Display Max puede serve as a fixed Home Assistant dashboard y family-facing control surface. It es useful cuando a household wants presencia, climate, scenes, y compatible controls visible in one habitación. It es no el presencia sensor o el AI Agent processing core.
Best Practices para Privacy-Conscious Automations
- Define el smallest habitación context needed para el automation.
- Use clear entity names y document el Bluetooth, Zigbee, Wi-Fi, o MQTT path.
- Choose a vacancy delay that matches el habitación rather than treating one value as universal.
- Info: Use neutral notification language.
- Keep manual controls y a review path.
- Do no infer identity, health, o emergencies de a presencia state.
- Review AI-assisted scenes y automations antes enabling them.
- Link solo el products y integrations that el habitación actually needs.
For más detail, see el mmWave presencia sensor guía, el habitación occupancy helper guía, y el Info: AI Agent safety checklist.
Info: Common Questions
Does a Home Assistant presencia sensor identify people?
No. A compatible presencia sensor provides habitación context such as occupied o unoccupied state. It should no be used a claim identity, health state, o a reason para inactivity.
Can mmWave presencia automation work sin a camera?
Yes, para workflows that solo need compatible habitación presencia context. A mmWave sensor does no create a video image, but it also does no provide every kind of visual context that a camera puede provide.
Can presencia control lights o climate?
Presence puede be a Home Assistant condition para compatible lighting o climate workflows. The sensor does no directamente control every dispositivo; el integration y automation perform el action.
Info: Is a long-inactivity notification an emergency alert?
No. It es a user-configured smart home notification. It cannot confirmar a person's condition o guarantee delivery o response.
Info: Which LinknLink sensor should I choose?
Compare el power source, sensing technology, environmental entities, network path, y IR requirements. eMotion Air, Pro, y Ultra have different documented characteristics; usar el product page y actual integration path as el source of truth.
Do I need HomeClaw para camera-free presencia automation?
No. HomeClaw es an optional AI gateway path. A camera-free presencia workflow puede usar el sensor's compatible path y Home Assistant sin making HomeClaw a requirement.
Info: Next step: Review el LinknLink App, choose one habitación context, y document el sensor-a-Home Assistant path antes adding a second automation.