by Mat Dirjish
Provider of AI-enabled home robotics systems SwitchBot unveils its battery-powered Presence Sensor that integrates 60-Hz mmWave radar, a passive infrared (PIR) sensor, and a light sensor. Addressing the limitations of traditional motion sensors, the SwitchBot Presence Sensor promises highly accurate and continuous presence monitoring, smarter lighting automation, and greater energy efficiency.
In operation, the PIR sensor provides rapid initial detection of human entry while the mmWave radar enables micro-motion recognition, capturing subtle physiological movements such as breathing or minor posture adjustments. Unlike using conventional PIR-only sensors, this allows the sensor to maintain accurate occupancy status even when a person remains stationary.
The integral light sensor determines lighting conditions within the room, allowing the Presence Sensor to combine motion, micro-motion, and light condition data. This enables support for context-aware automation, ensuring lighting and home appliances remain active when there’s movement in a room while reducing false activations.
Additionally, the sensor integrates multiple anti-interference features including AI environmental learning to help the sensor precisely identify the frequency of fans or air conditioners. Also, a pet-avoidance function reduces false triggers caused by small animals.
The SwitchBot Presence Sensor delivers up to two years of battery life using two AAA batteries. Available through the SwitchBot website and Amazon Stores, US price is 29.99.
Mat Dirjish Online 