Human Presence Detection Radar Module 60GHz LD6003G for Smart Home / 60GHz Non-contact Breathing Heart Rate Detection Sensor LD6003

60G High-Precision Multi-Target Human State Detection Radar Module (HLK-LD6003B)

1. Product Overview

•   Model: HLK-LD6003B

•   Technology: FMCW (Frequency Modulated Continuous Wave) radar.

•   Core Functions:

    ◦   Human presence detection and multi-target tracking (up to 3 targets).

    ◦   Recognizes moving, micro-moving, and stationary humans.

    ◦   Calculates target distance, angle, speed, and outputs 3D coordinates.

    ◦   Supports customizable detection zones (up to 4 areas).

2. Key Specifications

Parameter Specification

Frequency 60 GHz (58 ~ 64 GHz)

Transmit Power 12 dBm

Modulation FMCW

Antenna Gain 4 dBi

Detection Angle Azimuth ±60° / Elevation ±60°

Detection Range < 6 m (Side Mount: 1.5–2 m height)

Accuracy 95% (Typical)

Supply Voltage 3.3V (Range: 3.1V ~ 3.5V)

Current Requirement > 1A

Dimensions 25 × 31.5 mm

Operating Temp. -20°C ~ +85°C

Storage Temp. -40°C ~ +85°C
3. Pin Definition (Key Pins)
Pin Name Description Notes

1 VDDRF External RF Power (1.35V) SMT only

2 WP Write Protect (Active Low) Flash function

3 HOLD Hold Signal Flash function

6 TX2 UART2_TX / GPIO Control output (e.g., relay)

7 RST Reset Input

8 P19 BOOT1 Boot config

10 SWDIO SWD Debug Data

11 SWCLK SWD Debug Clock

12 P12 BOOT0 Boot config

13 3.3V Power Supply Input

16 RX0 UART0_RX / GPIO

17 TX0 UART0_TX / GPIO Host communication

21 RX1 UART1_RX / GPIO

22 TX1 UART1_TX / GPIO

25 SCLK SPI0_SCLK / GPIO RF ADC output

26 MOSI SPI0_MOSI / GPIO RF ADC output

27 CS SPI0_CS / GPIO RF ADC output

28 MISO SPI0_MISO / GPIO

4. Boot Configuration

The module boots from internal Flash by default.
BOOT1 (Pin 8) BOOT0 (Pin 12) Mode

0 1 Internal Flash Boot

Note: Both BOOT pins have internal pull-ups. BOOT1 must be pulled LOW before startup.

5. Output & Interface

•   UART Output: Default baud rate 115200, no parity. Outputs detection results via UART0 protocol.

•   GPIO Output: Direct level output via TX2 pin (High: Human detected, Low: No one).

6. Reference Design & Peripherals

•   Power Supply: Requires 3.3V with current capacity > 1A. If using DCDC, switching frequency must be ≥ 2 MHz with ripple ≤ 50 mV.

•   Decoupling: Requires capacitors (e.g., 100nF, 4.7µF) near the power pins.

•   Debugging: Use SWDIO (Pin 10) and SWCLK (Pin 11) for debugging.

7. Installation & Detection Range

•   Ceiling Mount: Height 2.2 – 3 m.

•   Side Wall Mount: Height 1.5 – 2 m, Max range < 6 m.

•   Coverage: Conical detection area defined by ±60° azimuth and elevation.

8. Application Scenarios

•   Smart Home Appliances (presence sensing).

•   Smart Lighting Control (auto on/off).

•   Office Occupancy Monitoring.

•   Security Surveillance Systems.

9. Additional Notes

•   Detection distance varies with target RCS (Radar Cross Section) and environmental factors; fluctuations are normal.

•   The module supports filtering interference through custom zone settings.

Fall Detection Radar Module (LD6003C) 

1. Product Overview

The LD6003C is a millimeter-wave human fall detection radar module. It supports ceiling mounting and uses a high-precision modulation signal system for non-contact real-time detection of dangerous signals such as human falls and stationary presence. Results are transmitted to a host computer or MCU via serial port.

2. Product Features

Parameter Value

Operating Frequency 60G (58~62GHz)

Transmit Power 12dBm

Antenna Gain 4dBi

Operating Voltage 3.3V (Typ.)

Operating Current 200mA (Typ.)

Power Consumption 0.66W (Typ.)

Operating Temp -20℃ ~ +50℃

Storage Temp -40℃ ~ +80℃

Module Size 25 × 31.5 mm

Communication Serial Port (Baud Rate 115200)

Ceiling Mount Height 2.0m ~ 3.0m / 2.8m (Typ.)

Monitoring Range Approx. 12m² circular area

Accuracy 95%

Detection Distance 2m

Fall Response Time 8s (Typ.)

No Person → Person 2s (Max.)

Person → No Person 30s (Typ.)

3. Mechanical Dimensions

•   Top View: Approximately 25mm (Width) × 31.5mm (Height).

•   Note: Pin spacing is 1.6mm (refer to the specific drawing for details).

4. Pin Definition (Pin No. - Name - Description - Remarks)

Pin Name Description Remarks

1 VDDRF External RF Power / 1.35V -

2 WP Write protection active low Flash function pin

3 HOLD Hold device (without deselecting) Flash function pin

4 AIO1 Temperature index test interface Can be used as analog input

5 P22 interfaceGPIO_P22 / LDO_EXT_EN_H -

6 TX2 GPIO_P20 / uart2_txd Control output (e.g., relay)

7 RST Reset Signal Input -

8 P19 GPIO_P19 / boot1 Boot

9 GND0 GND Boot

10 SWDIO SWD Debug Signal -

11 SWCLK SWD Debug Clock -

12 P12 GPIO_P12 / boot0 Boot

13 3.3V POWER INPUT 3.3V -

14 GND GND -

15 SDA GPIO_P08 / IIC0_SDA -

16 RX0 GPIO_P01 / uart0_rxd -

17 TX0 GPIO_P00 / uart0_txd -

18 SCL GPIO_P07 / IIC0_SCL -

19 P23 IOPAD_P23 -

20 P25 IOPAD_P25 -

21 RX1 GPIO_P11 / uart1_rxd -

22 TX1 GPIO_P10 / uart1_txd -

23 P27 IOPAD_P27 -

24 P29 IOPAD_P29 -

25 SCLK IOPAD_P03 / SPI0_SCLK Can be used for RF ADC signal output

26 MOSI IOPAD_P06 / SPI0_MOSI Can be used for RF ADC signal output

27 CS IOPAD_P04 / SPI0_CS Can be used for RF ADC signal output

28 MISO IOPAD_P05 / SPI0_MISO -

29 GND1 GND Supports SMT package only

- GND2 GND Supports SMT package only

5. Reference Design (Peripherals)

•   Power: 3.3V supply. Filter capacitors (e.g., 100nF) are recommended for VDDRF and 3.3V pins.

•   Debugging: Connect SWDIO (Pin 10) and SWCLK (Pin 11) to the debugger. RST (Pin 7) can connect to an external reset circuit.

•   Communication: Connect TX0/RX0 (Pin 16/17) to the host MCU UART. TX1/RX1 (Pin 21/22) are optional.

•   Note: WP/HOLD/CS/MOSI/CLK/O/GND/3V3 must be soldered to the baseboard as test points.

6. Module Startup Configuration

BOOT1 BOOT0 Description

0 1 Internal Flash Boot

Pin 8 - BOOT1 must be pulled Low (Internally pulled up, force pull-down required)

Pin 12 - BOOT0 (Internally pulled up)

7. Function & Parameter Settings

•   Interaction Types: ① Parameter Setting (Customizable/Default); ② Monitoring Data Reporting (Timed upload).

•   Configurable Parameters:

Parameter Name Min Typ Max Unit Remarks

Installation Height 1.4 - 3.0 m Default 2.8m (Ceiling)

Installation Method - Ceiling - - -

Static Presence Duration - 5 - min Recommended to set longer

Long Stay Duration - 30 - min Server-side processing for continuous presence

8. Getting Started

•   It is recommended to use a test baseboard + evaluation software for development and testing. The software receives monitoring data, stores/displays graphics, and configures parameters.

•   Evaluation Software UI: Allows device selection, serial port settings (Baud Rate 115200), viewing monitoring data/waveforms/logs, etc.