LD2460 24GHz Radar Sensor for Multi-Target People & Motion Tracking | Up to 5 People | Up to 6m Range & 120° Detection Angle | 5V UART

LD2460 - 24GHz Multi-Target Radar for People & Position Tracking

PRECISE PERSON DETECTION WITHOUT A CAMERA
The HLK-LD2460 is a 24GHz FMCW millimeter-wave radar designed for reliable detection, positioning, and tracking of people in indoor environments – independent of lighting conditions and completely privacy-friendly (no image data).

MULTI-TARGET TRACKING FOR UP TO 5 PEOPLE
The module can detect multiple people simultaneously and provides position, distance, and movement information. Ideal for smart home, building automation, office, and hotel applications.

LARGE DETECTION AREA
A wide detection angle combined with a range of up to 6 m makes this module perfect for rooms, hallways, and open spaces.

EASY INTEGRATION VIA UART
Communication is handled via a serial interface (UART) and is suitable for ESP32, Arduino, Raspberry Pi, and other microcontrollers.

HIGHLIGHTS

• 24GHz FMCW mmWave radar for motion & presence detection
• Multi-target tracking: detects up to 5 people simultaneously
• Range up to 6 m (environment-dependent)
• Detection angle: up to 120° horizontal / 90° vertical
• Privacy-friendly: no camera, no image data
• UART interface (default: 115200 bps)

TECHNICAL DATA

• Operating frequency: 24–24.25 GHz
• Modulation: FMCW
• Range: dynamic up to 6 m / static up to 5 m (typ.)
• Distance resolution: 0.75 m
• Distance accuracy: ≤ 0.3 m
• Angle accuracy: ≤ 5°
• Detection angle: 120° (horizontal) / 90° (vertical)
• Supply voltage: 5 V
• Current consumption: ≤ 250 mA (typ.)
• Interface: UART (8N1, no flow control)
• Operating temperature: -40 to +85 °C

PINOUT (MOST IMPORTANT PINS)

• 5V: Power supply
• GND: Ground (must be connected to host ground)
• TX2 / RX2: UART data (reporting & commands)
• IO1–IO4: GPIO / reserved (model-dependent)

TYPICAL APPLICATIONS

• Smart home: lighting, HVAC, and automation based on presence
• Room occupancy / people tracking in offices & meeting rooms
• Hotel & building management
• Energy-saving control systems (HVAC, lighting, standby)
• Maker & IoT projects

NOTES

• After power-up, the module requires approx. 1 s to stabilize.
• Detection range and performance depend on environment, mounting, and interference sources (e.g. fans, curtains, pets).
• For optimal results, configure installation type (ceiling/wall), height, and angle accordingly.