24GHz human presence sensor mmWave Radar Sensor for Home Assistant

The HMMD-mmWave-Sensor is an advanced human micromotion sensor based on the AIoT mmWave Sensor SoC S3KM1110, equipped with powerful 24GHz 1T1R antennas. With a built-in microprocessor and micro-motion detection algorithm, the sensor accurately detects movement, micro-movements and standing people. The sensor supports UART communication protocol, allowing configuration of detection range, sensitivity and absence reporting delay, making it easy to use. It supports output via the UART port and GPIO header, allowing connection to various motherboards such as Raspberry Pi and Arduino. Thanks to its wide range of human body movement detection, the sensor can be mounted both on the ceiling and on the wall. The product has a wide range of applications in a variety of projects such as Raspberry Pi, RP2040, Arduino, ESP32 and Jetson Nano.

Specification:

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* Frequency band: 24~24.25 GHz

* Maximum scanning bandwidth: 0.25 GHz

* Supply voltage: 3.3 V (wide-range voltage of 3.0 ~ 3.6 V)

* Dimensions: 20x20mm

* Detection range (wall-mounted): Human body movement target 10m; Human body micro-motion target 6m

* Detection range (ceiling mounting): Human body movement target 5 m; Human body micro-motion target 4 m

* Detection accuracy: 0.15 m (for moving targets at a distance of 10 m in a straight line from the radar)

* Average operating current: 50 mA

* Data refresh period: 100ms