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Radar Module RD-xx
Radar Module Rd-03
The Radar Module Rd-03 features silicon micro-S3KM1110 chips, which are integrated single-chip millimeter-wave sensor SoCs based on FMCW (Frequency-Modulated Continuous-Wave) radar transceiver technology. The S3KM1110 operates in the 24 GHz K-band, with a maximum modulation bandwidth of 1 GHz per frequency.
The FMCW continuous wave technology is used to detect targets within a specific area. When combined with radar signal processing and an accurate human body sensing algorithm, it enables high-sensitivity detection of human presence. This allows for recognizing human bodies in both moving and still states.
The Rd-03 module can detect the presence of a moving or micro-movements of a human body within a specific area and provides real-time detection results. It includes a visual configuration tool that makes it easy to set the sensing distance, sensitivity levels, and unmanned delay time.
Technical characteristics
| Package | DIP-5 |
|---|---|
| Chip | S3KM1110 |
| Size | 20 * 20 mm |
| Antenna | On-board antenna |
| Frequency | 24 .. 24.25 GHz K-band |
| Operation temperature | -40 .. 85 ℃ |
| Storage environment | -40 .. 125 ℃, < 90% RH |
| Support voltage | 3.0 .. 3.6 V |
| Power supply current ≥200m A | |
| Range | < 10 m |
| Max Sensing Range | < 5 m |
| Radar angle | ±60 degrees |
| Interface | UART |
| UART baud rate | Default 115200 bps |
Rd-03 is an electrostatically sensitive piece of equipment; special precautions should be taken during handling.
PIN out
| 3V3 | input power |
|---|---|
| GND | Ground |
| OT1 | UART_TX |
| RX | UART_RX |
| OT2 | Detection result output, output high level when sensing, output low level when not sensing |
Characteristics of perception
 |  |
| Characteristics of a sensor installed on the ceiling, approximately 2.6 to 3 meters high. | Horizontal characteristic of a sensor mounted on a wall, approximately 1.5 to 2 meters high. |
Sources
Sensor topics on lamaPLC
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