Ai-Thinker Rd-03 Radar Module

Looking for Rd-03 Radar Module? Ai-Thinker Rd-03 Radar Module is available at Zbotic with fast shipping across India.

Rd-03 is a radar module developed by Ai-Thinker. It is equipped with silicon micro-S3KM1110 chips. S3KM1110 is an integrated single-chip millimeter-wave sensor SoC based on FMCW radar transceiver technology. Operates in 24 GHz K-band with up to 1 GHz modulation bandwidth per frequency. FMCW continuous wave is used to detect the target in the set space. Combined with radar signal processing and an accurate human body sensing algorithm, high-sensitivity human presence state sensing can be realized to recognize a body in motion and a static state.

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:

• Model: Rd-03
• Antenna: On-board antenna
• Frequency: 24G ~24.25GHz
• Operation Temperature: -40℃ ~ 85℃
• Storage Environment: -40℃ ~ 125℃, 90%RH
• Power Supply Voltage: 3.0V ~ 3.6V
• Power Supply Current: ≥200mA
• Interfaces: UART
• UART Rate: Default 115200 bps

Features:

• DIP package, standard 2.54mm pin
• Radar support 24 GHz ISM frequency band
• The radar antenna supports 1 receive and 1 transmit, antenna beam is narrow, high resolution, frequency bandwidth, strong anti-interference
• The radar’s max sensing range is up to 5 meters
• The radar angle is big, range of ±60 degrees
• Radar range and accurate recognition, support induction range, shielding range outside interference
• The intelligent adjustment of radar parameters can be realized through the serial port, which is convenient and fast
• Rd-03 Support various installation methods such as ceiling and wall
• Rd-03 Support UART

Package Included:

1 x Ai-Thinker Rd-03 Radar Module

Ai-Thinker Rd-03 Radar Module Overview

Ai-Thinker Rd-03 Radar Module is a compact 24 GHz FMCW radar sensor designed for high-sensitivity human presence and micro-motion detection. It integrates the S3KM1110 single-chip millimeter-wave SoC with an onboard antenna to reliably recognize both moving and static bodies in its field of view.

Key Features of Ai-Thinker Rd-03 Radar Module

• 24 GHz K-band FMCW radar with up to 1 GHz modulation bandwidth for accurate target resolution
• Integrated S3KM1110 sensor SoC and onboard antenna for a compact footprint
• Advanced signal processing and human body algorithms to detect motion and micro-movements
• Wide power range: 3.0 V–3.6 V supply with ≥ 200 mA current draw
• Robust operation from -40 °C to 85 °C and storage up to 125 °C at 90% RH
• Fast shipping from Zbotic across India for rapid prototyping and deployment

Applications and Use Cases

• Smart lighting and HVAC control based on room occupancy
• Security systems and intrusion alarms for residential or commercial sites
• Elderly care and fall-prevention monitors sensing micro-movements
• Automated door openers activated by human approach
• Energy-saving solutions that deactivate systems when no presence is detected
• Interactive robotics and installations requiring proximity awareness

How to Use Ai-Thinker Rd-03 Radar Module

To deploy the Rd-03 module, provide a stable 3.0 V–3.6 V power supply and wire the module pins to your controller following the datasheet pinout. Position the module with a clear line-of-sight to the monitored area, then configure detection parameters as detailed in the product manual. Observe the real-time presence outputs and adjust sensitivity to suit your application environment.

Why Buy from Zbotic?

• Genuine Products: All items sourced from authorized distributors
• Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
• Free Shipping: Free delivery on qualifying orders
• COD Available: Cash on Delivery, UPI, cards, net banking
• Technical Support: Expert help for setup and troubleshooting
• Easy Returns: Hassle-free replacement for defective products

Frequently Asked Questions

What frequency band does the Rd-03 module operate in?

The Rd-03 module operates in the 24 GHz–24.25 GHz K-band, using FMCW continuous-wave modulation to measure range and motion precisely.

Can the Rd-03 detect both moving and stationary people?

Yes. Thanks to its high-sensitivity micro-motion algorithms, the module senses slight movements such as breathing, enabling both moving and static human presence detection.

What environmental conditions can the Rd-03 withstand?

The module reliably functions between -40 °C and 85 °C in operation and can be stored from -40 °C up to 125 °C at humidities up to 90% RH.