Rd-03 is a radar module developed by Ai-Thinker, equipped with Iclegrand’s S3KM1110 chip. S3KM1110 is an integrated microcontroller mmWave sensor SoC based on FMCW radar transceiver technology. It operates in the K-band at 24 GHz with a modulation bandwidth of up to 1 GHz per single-frequency sweep. Use FMCW frequency modulation continuous wave to detect the target in the set space.
Combined with radar signal processing, high-sensitivity and micro-motion detection are realized. The Rd-03 module can sense whether there is a moving or micro-moving human body in the area, and realize real-time detection results. A visual configuration tool is provided to easily configure the sensing distance range, sensing sensitivity in different intervals unmanned delay time, etc.
Specifications
Frequency: 24 ~ 24.25 GHz
Power Supply: 3.0 V ~ 3.6 V
Power Supply current: ≥200 mA
Antenna: On-board antenna
Interfaces: UART
UART rate: Default 115200 bps
Operation Temperature: -40 ~ 85 °C
Storage environment: -40 ~ 125 °C, < 90% RH
Features
The radar antenna supports 1 reception and 1 transmission, with a narrow antenna beam, high resolution, wide frequency band, and strong anti-interference ability.
The farthest sensing distance of the radar is up to 6.5 meters.
Large radar detection angle, coverage up to ±60 degrees.
Ultra-small module size: 20*20mm, plug and play, real-time reporting of detection results.
High sensitivity, accurate ranging, and wide detection range.
The intelligent parameter adjustment of the radar can be realized through the serial port, which is convenient and fast.
Support various installation methods such as ceiling hanging and wall hanging.
Applications
Smart home: Perceive the existence and distance of the human body, report the monitoring results, and intelligently control home appliances to operate on demand.
Smart security: sensor access control, sensor alarm, trigger linkage application with camera, etc.
Smart lighting: identifies and senses the human body, and accurately detects the position, which can be used in public places or home lighting equipment such as sensor lights, bulb lights, table lamps, mirror lights, etc.
Intelligent business: Interval sensing, to identify the approach or departure of the human body within the set distance interval; light up the screen in time, and keep the device always on when the human body is present.
New energy charging/parking monitoring facilities: can trigger charging pile screen, parking space monitoring, wireless charging to prevent human intrusion, etc.
Advantage
24GHz single radar, high-performance 24GHz one send one receive antenna, antenna beam narrow, high resolution, wide frequency band, strong anti-interference ability.
It can detect human targets in micro-movement and motion states, and the recognition is accurate.
The average current is 50mA when working continuously.
Provide visualization tools to support the configuration of detection distance interval and target disappearance delay time.
It has the function of checking the background noise, which can improve the anti-interference ability and reduce false triggering.
Short-distance 0.2m sensing, no detection blind zone; support sensing range division, completely shielding interference outside the interval.
The detection angle is large, and the coverage reaches ±60°.
Ultra-small module size: 20*20mm, plug and play, real-time reporting of detection results.
Support wall-mounted, ceiling-mounted and other installation methods, cost-effective.
1 x Ai-Thinker Rd-03 24G Radar Sensor Module Human Micromotion Should Detect Module Rd-03 PCB Onboard Antenna
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