mmWave presence sensor with Home Assistant: the right selection criteria

Start from the real use case

Zigbee, Thread, Wi-Fi, zones, privacy and placement: choose an mmWave presence sensor without multiplying false detections.

Use mmWave presence sensor with Home Assistant: the right selection criteria to frame a concrete need before comparing features. The intended location, people who will use it and expected behaviour after a restart should be clear from the outset.

Start with a meaningful measurement

For mmWave presence sensor with Home Assistant: the right selection criteria, define the decision the measurement will support before selecting the sensor. The mounting point, power source, sampling rhythm and calibration often matter more than a long feature list.

Observe the data before creating rules

Compare readings against a known reference when possible and let the device run through normal daily conditions. Only then add thresholds, alerts or automations, with a manual control and a safe behaviour when data is unavailable.

Checklist before automation

Use this short checklist to keep the deployment understandable and maintainable.

• Place the sensor where the value is representative.
• Verify power, radio coverage and reporting rhythm.
• Keep alerts and automation thresholds understandable.