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Xiaomi puts 24GHz radar in a bathroom ceiling heater
Xiaomi’s new Mijia bathroom unit combines lighting, heating and ventilation, with a 24GHz presence radar and a 999 yuan crowdfunding price.
Image: gizmochina
Xiaomi is bringing 24GHz presence radar to a new bathroom ceiling unit in China. The Mijia Smart Bathroom Heater P1 Human Sensing Edition combines a light, heater, and exhaust fan, and replaces the usual PIR motion sensor with radar that can detect whether someone is still in the room even when they are standing still.
Crowdfunding on Xiaomi Youpin starts next week at 999 yuan. That presence feature is notable in a bathroom, where many ceiling-mounted smart units still rely on PIR sensors that can shut off lights or ventilation if no movement is detected. The source notes that radar-based presence sensing has become a growing smart home category over the past two years, with Aqara’s FP series among the earlier examples.
The Mijia P1 includes:
- 24GHz presence radar with adjustable sensitivity and detection zone
- 3000W graphene heater
- 60–90 degree adjustable louvers to direct warm air downward
- Two DC motors for simultaneous heating and ventilation
- Exhaust performance of up to 259 m³/h
- Light output of up to 1500 lm
- Color temperature from 3000 to 6200 K plus a night mode
- Support for Mi Home, HyperOS, and a wireless wall switch
Xiaomi says the heater uses inverter control rather than a simple full-power on/off cycle, which should deliver a steadier temperature instead of repeated peaks and pauses. The radar system also includes protections against false triggers, with adjustable range and sensitivity to reduce the chance of detecting movement outside the bathroom.
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Lighting is built into a retractable panel that sits flush with the ceiling. Xiaomi also says the wireless switch has an IPX4 splash-resistance rating and fits a standard 86 mm wall box, a common format in China.
Frontier Editor
Dan is our resident futurist, covering electric mobility, space exploration, and the smart home. He's interested in atoms just as much as bits. Whether it's a new battery chemistry, a reusable rocket, or a protocol that finally makes IoT devices talk to each other, Dan breaks down the engineering that pushes humanity forward.
via ITzine
