The Rd-03 is a radar module equipped with the S3KM1110 chip, an integrated single-chip milli-metre wave sensor SoC based on the FMCW radar transceiver technology, which operates in the K-band at 24 GHz, with a modulation bandwidth of up to 1 GHz for each single-frequency scan to detect targets in the set space using FMCW continuous waves. Combined with radar signal processing to achieve high-sensitivity motion detection and micro-motion detection.
The Rd-03 module senses the presence of a moving or slightly moving human body in the area and achieves real-time detection results.
Provide visual configuration tools, can easily configure the sensing distance range, different zones of sensing sensitivity and unmanned delay time.
Product Details
Pinout Description
| Pin Number | Name | Function Description |
|---|---|---|
| 1 | 3V3 | Input power supply |
| 2 | GND | Ground |
| 3 | OT1 | UART_TX |
| 4 | RX | UART_RX |
| 5 | OT2 | Detection result output. Outputs a high level when sensing, and outputs a low level when not sensing. |
| Parameter | Rd-03_V2 | Rd-03_V1 |
|---|---|---|
| Chip Model | Silicon Micro S3KM1110 | Silicon Micro S3KM1110 |
| Sensing Range | Up to 10m | Up to 6.5m |
| Power Supply | 3.0V - 3.6V / Current ≥ 200mA | 3.0V - 3.6V / Current ≥ 200mA |
| Detection Features | Human presence detection (motion & static) | Motion detection, micro-motion detection |
| Application Scenarios | Smart home, security monitoring, energy efficiency | Smart lighting, basic motion-triggered automation |
Rd-03_V2 offers superior sensing with longer detection range and human presence detection, making it ideal for security and energy-saving applications. Rd-03_V1, while effective for motion detection, is better suited for simpler automation needs.